bambuddy/frontend/src/pages/PrintersPage.tsx

import { useState, useEffect, useLayoutEffect, useMemo, useRef, useCallback } from 'react';
import { createPortal } from 'react-dom';
import { compareFwVersions } from '../utils/firmwareVersion';
import { formatPrintName } from '../utils/printName';
import { computePopoverPosition, type PopoverPosition } from '../utils/popoverPosition';
import { resolveDryingPresetKey, type DryingPreset } from '../utils/dryingPresets';
import { computeStartAfter, type DryingStartMode } from '../lib/scheduledDrying';
import {
  isExternalSpoolHidden,
  setExternalSpoolHidden as persistExternalSpoolHidden,
} from '../utils/printerCardPrefs';
import {
  BED_TEMP_DEFAULTS,
  CHAMBER_TEMP_DEFAULTS,
  FAN_SPEED_DEFAULTS,
  NOZZLE_TEMP_DEFAULTS,
  buildPresetOptions,
  parsePresetTriple,
} from '../utils/temperatureFanPresets';

// AMS drying popover dimensions — w-[240px] on the popover, estimated height
// covers header + filament select + temp slider + duration + rotate-tray
// toggle + buttons. Over-estimating is fine (flip-above kicks in slightly
// earlier); under-estimating leaves the popover clipped off the bottom (the
// original bug at #1447).
const DRYING_POPOVER_WIDTH = 240;
// Height in "now" mode plus the tallest start-mode control; a conservative
// over-estimate just flips the popover above the trigger sooner.
const DRYING_POPOVER_ESTIMATED_HEIGHT = 440;
// Delay presets for the "After delay" drying start mode, in minutes.
const DRYING_DELAY_OPTIONS = [30, 60, 120, 240, 480, 720, 1440];

// Every printer card reads the same fleet-wide scheduled-drying list.
const SCHEDULED_DRYINGS_KEY = ['scheduled-dryings'] as const;

// Why a due run has not started yet: every waiting_reason the scheduler can
// set. An unmapped one leaves the card showing a bare "Drying scheduled
// for ..." with no hint why nothing is happening.
const WAITING_REASON_KEYS: Record<string, string> = {
  ams_power_required: 'printers.drying.powerRequired',
  ams_retract_filament: 'printers.drying.retractFilament',
  ams_blocked: 'printers.drying.cannotDryNow',
  ams_not_found: 'printers.drying.waitingAmsNotFound',
  printer_offline: 'printers.drying.waitingOffline',
  printer_busy: 'printers.drying.waitingPrinterBusy',
  already_drying: 'printers.drying.waitingAlreadyDrying',
  interrupted: 'printers.drying.waitingInterrupted',
};

function waitingReasonKey(reason: string | null | undefined): string | undefined {
  return reason ? WAITING_REASON_KEYS[reason] : undefined;
}

// Which cannot-dry code to name when the firmware reports several at once.
// Same priority as the backend's drying_preflight.primary_reason_code, so the
// button's tooltip and a scheduled row's waiting reason describe one blocked
// AMS the same way: codes 1 and 8 are a power-supply problem, 3 is filament
// left at the outlet, and both need the user to go and do something. The rest
// (AMS busy, cooling down) clear by themselves and share the generic wording.
function dryingBlockedKey(reasons: Array<number | string> | undefined): string {
  const codes = (reasons ?? []).map(r => Number(r));
  if (codes.some(c => c === 1 || c === 8)) return 'printers.drying.powerRequired';
  if (codes.includes(3)) return 'printers.drying.retractFilament';
  return 'printers.drying.cannotDryNow';
}
import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
import { useTranslation } from 'react-i18next';
import { useTheme } from '../contexts/ThemeContext';
import { useAuth } from '../contexts/AuthContext';
import {
  Plus,
  Link,
  Unlink,
  Signal,
  Clock,
  MoreVertical,
  Trash2,
  RefreshCw,
  RotateCw,
  Box,
  HardDrive,
  AlertTriangle,
  AlertCircle,
  Terminal,
  Power,
  Zap,
  Wrench,
  ChevronDown,
  Eye,
  EyeOff,
  Filter,
  Pencil,
  ArrowLeft,
  ArrowRight,
  ArrowUp,
  ArrowDown,
  Layers,
  Video,
  Search,
  Loader2,
  Square,
  Pause,
  Play,
  X,
  Fan,
  Wind,
  AirVent,
  Download,
  ScanSearch,
  CheckCircle,
  CheckSquare,
  XCircle,
  User,
  Home,
  Printer as PrinterIcon,
  Info,
  Cable,
  Flame,
  Repeat,
  Snowflake,
  Gauge,
  DoorOpen,
  DoorClosed,
  Move,
  LogIn,
  LogOut,
  MoreHorizontal,
  SlidersHorizontal,
  Stethoscope,
  ScanEye,
  LineChart as LineChartIcon,
  LayoutGrid,
  MonitorPlay,
  ExternalLink,
} from 'lucide-react';

// Aliased: lucide-react already exports a `Link` icon into this module.
import { Link as RouterLink, useNavigate } from 'react-router-dom';
import { api, discoveryApi, firmwareApi, withStreamToken, ApiError } from '../api/client';
import { formatDateOnly, formatDateTime, formatETA, formatDuration, formatDurationFromHours, parseUTCDate } from '../utils/date';
import type { Printer, PrinterCreate, PrinterStatus, AMSUnit, DiscoveredPrinter, FirmwareUpdateInfo, FirmwareUploadStatus, LinkedSpoolInfo, SpoolAssignment, HMSError, InventorySpool, SmartPlug, PrinterDiagnosticResult } from '../api/client';
import { Card, CardContent } from '../components/Card';
import { Button } from '../components/Button';
import { ConfirmModal } from '../components/ConfirmModal';
import { BulkPrinterToolbar, type PrinterState } from '../components/BulkPrinterToolbar';
import { FileManagerModal } from '../components/FileManagerModal';
import { EmbeddedCameraViewer } from '../components/EmbeddedCameraViewer';
import { CameraWall } from '../components/CameraWall';
import { MQTTDebugModal } from '../components/MQTTDebugModal';
import { HMSErrorModal, filterKnownHMSErrors } from '../components/HMSErrorModal';
import { AiDetectionModal } from '../components/AiDetectionModal';
import { PrinterQueueWidget } from '../components/PrinterQueueWidget';
import { PrinterHASensorRow } from '../components/PrinterHASensorRow';
import { AMSHistoryModal } from '../components/AMSHistoryModal';
import { AmsBackupModal } from '../components/AmsBackupModal';
import { HeaterHistoryModal } from '../components/HeaterHistoryModal';
import type { HeaterSensorKind } from '../api/client';
import { FilamentHoverCard, EmptySlotHoverCard } from '../components/FilamentHoverCard';
import { LinkSpoolModal } from '../components/LinkSpoolModal';
import { AssignSpoolModal } from '../components/AssignSpoolModal';
import { ConfigureAmsSlotModal } from '../components/ConfigureAmsSlotModal';
import { useToast } from '../contexts/ToastContext';
import { ChamberLight } from '../components/icons/ChamberLight';
import { PlateClearedIcon } from '../components/icons/PlateClearedIcon';
import { SkipObjectsModal, SkipObjectsIcon } from '../components/SkipObjectsModal';
import { FileUploadModal } from '../components/FileUploadModal';
import { PrintModal } from '../components/PrintModal';
import { PrinterInfoModal } from '../components/PrinterInfoModal';
import { getAmsLabel, getGlobalTrayId, getFillBarColor, getSpoolmanFillLevel, getFallbackSpoolTag, isBambuLabSpool, resolveSlotNozzleDiameter } from '../utils/amsHelpers';
import { MAX_CHAMBER_TEMP_C, getPrinterImage, getWifiStrength, filterCompatibleQueueItems } from '../utils/printer';
import { FilamentSlotCircle } from '../components/FilamentSlotCircle';
import { Collapsible } from '../components/Collapsible';
import { ConnectionDiagnosticModal, DiagnosticChecklist } from '../components/ConnectionDiagnostic';
import { getColorName, parseFilamentColor, isLightColor } from '../utils/colors';

// The status filter's options, and the only values it may hold. One list so a
// saved filter cannot be validated against a set the dropdown has since moved
// on from (#2833). Labels stay literal so they remain greppable.
const STATUS_FILTER_OPTIONS = [
  { value: 'all', labelKey: 'printers.filter.allStatuses' },
  { value: 'printing', labelKey: 'printers.status.printing' },
  { value: 'paused', labelKey: 'printers.status.paused' },
  { value: 'idle', labelKey: 'printers.status.idle' },
  { value: 'finished', labelKey: 'printers.status.finished' },
  { value: 'error', labelKey: 'printers.status.error' },
  { value: 'offline', labelKey: 'printers.status.offline' },
] as const;

function isKnownStatusFilter(value: string | null): boolean {
  return STATUS_FILTER_OPTIONS.some(option => option.value === value);
}

export interface SpoolmanSlotAssignmentRow {
  printer_id: number;
  ams_id: number;
  tray_id: number;
  spoolman_spool_id: number;
}

// Color names resolve via getColorName() which reads the backend color_catalog
// (loaded once by ColorCatalogProvider). No hardcoded tables here — see #857.

// Format K value with 3 decimal places, default to 0.020 if null
function formatKValue(k: number | null | undefined): string {
  const value = k ?? 0.020;
  return value.toFixed(3);
}

// Nozzle side indicators (Bambu Lab style - square badge with L/R)
function NozzleBadge({ side }: { side: 'L' | 'R' }) {
  const { mode } = useTheme();
  // Light mode: #e7f5e9 (light green), Dark mode: #1a4d2e (dark green)
  const bgColor = mode === 'dark' ? '#1a4d2e' : '#e7f5e9';
  return (
    <span
      className="inline-flex items-center justify-center w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)] text-[length:var(--pc-t10,10px)] font-bold rounded"
      style={{ backgroundColor: bgColor, color: '#00ae42' }}
    >
      {side}
    </span>
  );
}

// Expand nozzle type codes to material names
// Handles full text ("hardened_steel"), 2-char codes ("HS"/"HH"), and 4-char codes ("HS01")
// Material mapping: 00=stainless steel, 01=hardened steel, 05=tungsten carbide
function nozzleTypeName(type: string, t: (key: string) => string): string {
  if (!type) return '';
  // Full text names (from main nozzle info)
  if (type.includes('hardened')) return t('printers.nozzleHardenedSteel');
  if (type.includes('stainless')) return t('printers.nozzleStainlessSteel');
  if (type.includes('tungsten')) return t('printers.nozzleTungstenCarbide');
  // 4-char codes (e.g. "HS01"): last 2 digits = material
  if (type.length >= 4) {
    const material = type.slice(2, 4);
    if (material === '00') return t('printers.nozzleStainlessSteel');
    if (material === '01') return t('printers.nozzleHardenedSteel');
    if (material === '05') return t('printers.nozzleTungstenCarbide');
  }
  // 2-digit numeric codes
  if (type === '00') return t('printers.nozzleStainlessSteel');
  if (type === '01') return t('printers.nozzleHardenedSteel');
  if (type === '05') return t('printers.nozzleTungstenCarbide');
  // 2-char alpha codes: H prefix = hardened steel
  if (type.startsWith('H')) return t('printers.nozzleHardenedSteel');
  return type;
}

// Parse flow type from nozzle type code
// HH = high flow, HS = standard/normal
function nozzleFlowName(type: string, t: (key: string) => string): string {
  if (!type) return '';
  if (type.startsWith('HH')) return t('printers.nozzleHighFlow');
  if (type.startsWith('HS')) return t('printers.nozzleStandardFlow');
  return '';
}

// Per-slot hover card for nozzle rack
// activeStatus: when true, show "Active" instead of "Mounted"/"Docked" (for hotend nozzles)
function NozzleSlotHoverCard({ slot, index, activeStatus, filamentName, children }: {
  slot: import('../api/client').NozzleRackSlot;
  index: number;
  activeStatus?: boolean;
  filamentName?: string;
  children: React.ReactNode;
}) {
  const { t } = useTranslation();
  const [isVisible, setIsVisible] = useState(false);
  const [position, setPosition] = useState<'top' | 'bottom'>('top');
  const triggerRef = useRef<HTMLDivElement>(null);
  const cardRef = useRef<HTMLDivElement>(null);
  const timeoutRef = useRef<ReturnType<typeof setTimeout> | null>(null);

  const isEmpty = !slot.nozzle_diameter && !slot.nozzle_type;
  const isMounted = slot.stat === 1;

  useEffect(() => {
    if (isVisible && triggerRef.current && cardRef.current) {
      const triggerRect = triggerRef.current.getBoundingClientRect();
      const cardHeight = cardRef.current.offsetHeight;
      const headerHeight = 56;
      const spaceAbove = triggerRect.top - headerHeight;
      const spaceBelow = window.innerHeight - triggerRect.bottom;
      if (spaceAbove < cardHeight + 12 && spaceBelow > spaceAbove) {
        setPosition('bottom');
      } else {
        setPosition('top');
      }
    }
  }, [isVisible]);

  const handleMouseEnter = () => {
    if (timeoutRef.current) clearTimeout(timeoutRef.current);
    timeoutRef.current = setTimeout(() => setIsVisible(true), 80);
  };

  const handleMouseLeave = () => {
    if (timeoutRef.current) clearTimeout(timeoutRef.current);
    timeoutRef.current = setTimeout(() => setIsVisible(false), 100);
  };

  useEffect(() => {
    return () => {
      if (timeoutRef.current) clearTimeout(timeoutRef.current);
    };
  }, []);

  const filamentCss = parseFilamentColor(slot.filament_color);
  const typeFull = nozzleTypeName(slot.nozzle_type, t);
  const flowFull = nozzleFlowName(slot.nozzle_type, t);

  return (
    <div
      ref={triggerRef}
      className="relative"
      onMouseEnter={handleMouseEnter}
      onMouseLeave={handleMouseLeave}
    >
      {children}

      {isVisible && (
        <div
          ref={cardRef}
          className={`
            absolute left-1/2 -translate-x-1/2 z-50
            ${position === 'top' ? 'bottom-full mb-2' : 'top-full mt-2'}
            animate-in fade-in-0 zoom-in-95 duration-150
          `}
          style={{ maxWidth: 'calc(100vw - 24px)' }}
        >
          <div className="w-44 bg-bambu-dark-secondary border border-bambu-dark-tertiary rounded-lg shadow-xl overflow-hidden backdrop-blur-sm">
            {isEmpty ? (
              <div className="px-3 py-2 text-xs text-bambu-gray text-center whitespace-nowrap">
                Slot {index + 1} — Empty
              </div>
            ) : (
              <div className="p-2.5 space-y-1.5">
                {/* Diameter */}
                <div className="flex items-center justify-between">
                  <span className="text-[length:var(--pc-t10,10px)] uppercase tracking-wider text-bambu-gray font-medium">{t('printers.nozzleDiameter')}</span>
                  <span className="text-xs text-white font-semibold">{slot.nozzle_diameter} mm</span>
                </div>

                {/* Type */}
                {typeFull && (
                  <div className="flex items-center justify-between">
                    <span className="text-[length:var(--pc-t10,10px)] uppercase tracking-wider text-bambu-gray font-medium">{t('printers.nozzleType')}</span>
                    <span className="text-xs text-white font-semibold truncate max-w-[100px]">{typeFull}</span>
                  </div>
                )}

                {/* Flow (hide if empty) */}
                {flowFull && (
                  <div className="flex items-center justify-between">
                    <span className="text-[length:var(--pc-t10,10px)] uppercase tracking-wider text-bambu-gray font-medium">{t('printers.nozzleFlow')}</span>
                    <span className="text-xs text-white font-semibold">{flowFull}</span>
                  </div>
                )}

                {/* Status badge */}
                <div className="flex items-center justify-between">
                  <span className="text-[length:var(--pc-t10,10px)] uppercase tracking-wider text-bambu-gray font-medium">{t('printers.nozzleStatus')}</span>
                  <span className={`text-[length:var(--pc-t10,10px)] font-bold px-1.5 py-0.5 rounded ${
                    activeStatus || isMounted
                      ? 'bg-green-900/50 text-green-400'
                      : 'bg-bambu-dark-tertiary text-bambu-gray'
                  }`}>
                    {activeStatus ? t('printers.nozzleActive') : isMounted ? t('printers.nozzleMounted') : t('printers.nozzleDocked')}
                  </span>
                </div>

                {/* Wear (hide if null) */}
                {slot.wear != null && (
                  <div className="flex items-center justify-between">
                    <span className="text-[length:var(--pc-t10,10px)] uppercase tracking-wider text-bambu-gray font-medium">{t('printers.nozzleWear')}</span>
                    <span className="text-xs text-white font-semibold">{slot.wear}%</span>
                  </div>
                )}

                {/* Max Temp (hide if 0) */}
                {slot.max_temp > 0 && (
                  <div className="flex items-center justify-between">
                    <span className="text-[length:var(--pc-t10,10px)] uppercase tracking-wider text-bambu-gray font-medium">{t('printers.nozzleMaxTemp')}</span>
                    <span className="text-xs text-white font-semibold">{slot.max_temp}°C</span>
                  </div>
                )}

                {/* Serial (hide if empty) */}
                {slot.serial_number && (
                  <div className="flex items-center justify-between">
                    <span className="text-[length:var(--pc-t10,10px)] uppercase tracking-wider text-bambu-gray font-medium">{t('printers.nozzleSerial')}</span>
                    <span className="text-[length:var(--pc-t10,10px)] text-white font-mono truncate max-w-[80px]">{slot.serial_number}</span>
                  </div>
                )}

                {/* Filament: material type + color swatch (hide if no color) */}
                {(filamentCss || slot.filament_type) && (
                  <div className="flex items-center justify-between">
                    <span className="text-[length:var(--pc-t10,10px)] uppercase tracking-wider text-bambu-gray font-medium">{t('printers.nozzleFilament')}</span>
                    <div className="flex items-center gap-1">
                      {filamentCss && (
                        <div className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)] rounded-sm border border-white/20" style={{ backgroundColor: filamentCss }} />
                      )}
                      <span className="text-[length:var(--pc-t10,10px)] text-white font-semibold truncate max-w-[100px]">{filamentName || slot.filament_type || slot.filament_id || ''}</span>
                    </div>
                  </div>
                )}
              </div>
            )}
          </div>

          {/* Arrow pointer */}
          <div
            className={`
              absolute left-1/2 -translate-x-1/2 w-0 h-0
              border-l-[6px] border-l-transparent
              border-r-[6px] border-r-transparent
              ${position === 'top'
                ? 'top-full border-t-[6px] border-t-bambu-dark-tertiary'
                : 'bottom-full border-b-[6px] border-b-bambu-dark-tertiary'}
            `}
          />
        </div>
      )}
    </div>
  );
}

// Dual-nozzle hover card showing L and R nozzle details side by side
function DualNozzleHoverCard({ leftSlot, rightSlot, activeNozzle, filamentInfo, children }: {
  leftSlot?: import('../api/client').NozzleRackSlot;
  rightSlot?: import('../api/client').NozzleRackSlot;
  activeNozzle: 'L' | 'R';
  filamentInfo?: Record<string, { name: string; k: number | null }>;
  children: React.ReactNode;
}) {
  const { t } = useTranslation();
  const [isVisible, setIsVisible] = useState(false);
  const [position, setPosition] = useState<'top' | 'bottom'>('top');
  const triggerRef = useRef<HTMLDivElement>(null);
  const cardRef = useRef<HTMLDivElement>(null);
  const timeoutRef = useRef<ReturnType<typeof setTimeout> | null>(null);

  useEffect(() => {
    if (isVisible && triggerRef.current && cardRef.current) {
      const triggerRect = triggerRef.current.getBoundingClientRect();
      const cardHeight = cardRef.current.offsetHeight;
      const headerHeight = 56;
      const spaceAbove = triggerRect.top - headerHeight;
      const spaceBelow = window.innerHeight - triggerRect.bottom;
      if (spaceAbove < cardHeight + 12 && spaceBelow > spaceAbove) {
        setPosition('bottom');
      } else {
        setPosition('top');
      }
    }
  }, [isVisible]);

  const handleMouseEnter = () => {
    if (timeoutRef.current) clearTimeout(timeoutRef.current);
    timeoutRef.current = setTimeout(() => setIsVisible(true), 80);
  };

  const handleMouseLeave = () => {
    if (timeoutRef.current) clearTimeout(timeoutRef.current);
    timeoutRef.current = setTimeout(() => setIsVisible(false), 100);
  };

  useEffect(() => {
    return () => { if (timeoutRef.current) clearTimeout(timeoutRef.current); };
  }, []);

  if (!leftSlot && !rightSlot) return <>{children}</>;

  const renderColumn = (slot: import('../api/client').NozzleRackSlot, side: 'L' | 'R') => {
    const isActive = activeNozzle === side;
    const typeFull = nozzleTypeName(slot.nozzle_type, t);
    const flowFull = nozzleFlowName(slot.nozzle_type, t);
    const filamentCss = parseFilamentColor(slot.filament_color);
    const filamentName = slot.filament_id ? filamentInfo?.[slot.filament_id]?.name : undefined;
    return (
      <div className="flex-1 space-y-1.5">
        <div className={`text-[length:var(--pc-t10,10px)] font-bold pb-1 border-b border-bambu-dark-tertiary/50 ${isActive ? 'text-amber-700 dark:text-amber-400' : 'text-bambu-gray'}`}>
          {side === 'L' ? t('common.left') : t('common.right')}
        </div>
        {slot.nozzle_diameter && (
          <div className="flex items-center justify-between">
            <span className="text-[length:var(--pc-t10,10px)] text-bambu-gray">{t('printers.nozzleDiameter')}</span>
            <span className="text-xs text-white font-semibold">{slot.nozzle_diameter} mm</span>
          </div>
        )}
        {typeFull && (
          <div className="flex items-center justify-between">
            <span className="text-[length:var(--pc-t10,10px)] text-bambu-gray">{t('printers.nozzleType')}</span>
            <span className="text-[length:var(--pc-t10,10px)] text-white font-semibold">{typeFull}</span>
          </div>
        )}
        {flowFull && (
          <div className="flex items-center justify-between">
            <span className="text-[length:var(--pc-t10,10px)] text-bambu-gray">{t('printers.nozzleFlow')}</span>
            <span className="text-[length:var(--pc-t10,10px)] text-white font-semibold">{flowFull}</span>
          </div>
        )}
        <div className="flex items-center justify-between">
          <span className="text-[length:var(--pc-t10,10px)] text-bambu-gray">{t('printers.nozzleStatus')}</span>
          <span className={`text-[length:var(--pc-t10,10px)] font-bold px-1.5 py-0.5 rounded ${
            isActive
              ? 'bg-green-900/50 text-green-400'
              : 'bg-bambu-dark-tertiary text-bambu-gray'
          }`}>
            {isActive ? t('printers.nozzleActive') : t('printers.nozzleIdle')}
          </span>
        </div>
        {slot.wear != null && (
          <div className="flex items-center justify-between">
            <span className="text-[length:var(--pc-t10,10px)] text-bambu-gray">{t('printers.nozzleWear')}</span>
            <span className="text-xs text-white font-semibold">{slot.wear}%</span>
          </div>
        )}
        {/* Serial and max temp only available on the right (removable) nozzle */}
        {side === 'R' && slot.max_temp > 0 && (
          <div className="flex items-center justify-between">
            <span className="text-[length:var(--pc-t10,10px)] text-bambu-gray">{t('printers.nozzleMaxTemp')}</span>
            <span className="text-xs text-white font-semibold">{slot.max_temp}°C</span>
          </div>
        )}
        {side === 'R' && slot.serial_number && (
          <div className="flex items-center justify-between">
            <span className="text-[length:var(--pc-t10,10px)] text-bambu-gray">{t('printers.nozzleSerial')}</span>
            <span className="text-[length:var(--pc-t10,10px)] text-white font-mono">{slot.serial_number}</span>
          </div>
        )}
        {(filamentCss || slot.filament_type || slot.filament_id) && (
          <div className="flex items-center justify-between">
            <span className="text-[length:var(--pc-t10,10px)] text-bambu-gray">{t('printers.nozzleFilament')}</span>
            <div className="flex items-center gap-1">
              {filamentCss && (
                <div className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)] rounded-sm border border-white/20" style={{ backgroundColor: filamentCss }} />
              )}
              <span className="text-[length:var(--pc-t10,10px)] text-white font-semibold truncate max-w-[100px]">
                {filamentName || slot.filament_type || slot.filament_id || ''}
              </span>
            </div>
          </div>
        )}
      </div>
    );
  };

  return (
    <div
      ref={triggerRef}
      className="relative flex-1"
      onMouseEnter={handleMouseEnter}
      onMouseLeave={handleMouseLeave}
    >
      {children}

      {isVisible && (
        <div
          ref={cardRef}
          className={`
            absolute left-1/2 -translate-x-1/2 z-50
            ${position === 'top' ? 'bottom-full mb-2' : 'top-full mt-2'}
            animate-in fade-in-0 zoom-in-95 duration-150
          `}
          style={{ maxWidth: 'calc(100vw - 24px)' }}
        >
          <div className="w-96 bg-bambu-dark-secondary border border-bambu-dark-tertiary rounded-lg shadow-xl overflow-hidden backdrop-blur-sm">
            <div className="p-2.5 flex gap-3">
              {leftSlot && renderColumn(leftSlot, 'L')}
              {leftSlot && rightSlot && <div className="w-px bg-bambu-dark-tertiary/50" />}
              {rightSlot && renderColumn(rightSlot, 'R')}
            </div>
          </div>

          {/* Arrow pointer */}
          <div
            className={`
              absolute left-1/2 -translate-x-1/2 w-0 h-0
              border-l-[6px] border-l-transparent
              border-r-[6px] border-r-transparent
              ${position === 'top'
                ? 'top-full border-t-[6px] border-t-bambu-dark-tertiary'
                : 'bottom-full border-b-[6px] border-b-bambu-dark-tertiary'}
            `}
          />
        </div>
      )}
    </div>
  );
}

// H2C Nozzle Rack Card — compact single row showing 6-position tool-changer dock
function NozzleRackCard({ slots, filamentInfo }: { slots: import('../api/client').NozzleRackSlot[]; filamentInfo?: Record<string, { name: string; k: number | null }> }) {
  const { t } = useTranslation();
  // Rack nozzles only (IDs >= 2) — excludes L/R hotend nozzles (IDs 0, 1).
  // H2C rack slot IDs are fixed at 16..21. When a nozzle is picked up into the
  // hotend the firmware omits that rack ID entirely, so we must map by the fixed
  // base — computing it from min(present IDs) shifts everything left when slot 16
  // is the one currently mounted (#943).
  const rackNozzles = slots.filter(s => s.id >= 2);
  const RACK_SIZE = 6;
  const RACK_BASE_ID = 16;
  const rackSlots: (import('../api/client').NozzleRackSlot)[] = Array.from(
    { length: RACK_SIZE },
    (_, i) => rackNozzles.find(s => s.id === RACK_BASE_ID + i) ?? {
      id: -(i + 1), nozzle_type: '', nozzle_diameter: '', wear: null, stat: null,
      max_temp: 0, serial_number: '', filament_color: '', filament_id: '', filament_type: '',
    },
  );

  return (
    // Sized to its contents rather than growing: the six chips are a fixed
    // width at any one card size, so extra width would be dead space taken
    // from the temperature cards beside it — which are flex-1 with a 0 basis
    // and wrap their values ("220° / 220°") as soon as they lose it. Shrink
    // stays enabled so the card still gives way on a narrow printer card
    // instead of overflowing.
    <div className="text-center px-2.5 py-1.5 bg-bambu-dark rounded-lg flex-[0_1_auto] flex flex-col justify-center">
      <p className="text-[length:var(--pc-t9,9px)] text-bambu-gray mb-1">{t('printers.nozzleRack')}</p>
      <div className="flex gap-[3px] justify-center">
        {rackSlots.map((slot, i) => {
          const isEmpty = !slot.nozzle_diameter && !slot.nozzle_type;
          const filamentBg = !isEmpty ? parseFilamentColor(slot.filament_color) : null;
          const lightBg = filamentBg ? isLightColor(slot.filament_color) : false;

          return (
            <NozzleSlotHoverCard key={slot.id >= 0 ? slot.id : `empty-${i}`} slot={slot} index={i} filamentName={slot.filament_id ? filamentInfo?.[slot.filament_id]?.name : undefined}>
              <div className="flex flex-col items-center gap-0.5">
                <div
                  className={`w-[var(--pc-i7,28px)] h-[var(--pc-i7,28px)] rounded flex items-center justify-center cursor-default transition-colors border-b-2 ${
                    isEmpty
                      ? 'bg-bambu-dark-tertiary/20 border-bambu-dark-tertiary/20'
                      : 'bg-bambu-dark-tertiary/40 border-bambu-dark-tertiary/40'
                  }`}
                  style={filamentBg ? { backgroundColor: filamentBg } : undefined}
                >
                  <span
                    data-rack-diameter
                    className={`text-[length:var(--pc-t10,10px)] font-semibold ${isEmpty ? 'text-bambu-gray/30' : lightBg ? 'text-black/80' : 'text-white'}`}
                    style={filamentBg && !lightBg ? { textShadow: '0 1px 3px rgba(0,0,0,0.9)' } : undefined}
                  >
                    {isEmpty ? '—' : (slot.nozzle_diameter || '?')}
                  </span>
                </div>
                {/* Physical rack position, so "swap the nozzle in slot 4" can be
                    acted on without counting chips. Sits below the chip rather
                    than inside it: the chip is barely wider than its own
                    diameter text and already carries that over a
                    filament-coloured background. */}
                <span className="text-[length:var(--pc-t8,8px)] leading-none tabular-nums text-bambu-gray/70">
                  {i + 1}
                </span>
              </div>
            </NozzleSlotHoverCard>
          );
        })}
      </div>
    </div>
  );
}

// Water drop SVG - empty outline (Bambu Lab style from bambu-humidity)
function WaterDropEmpty({ className }: { className?: string }) {
  return (
    <svg className={className} viewBox="0 0 36 54" fill="none" xmlns="http://www.w3.org/2000/svg">
      <path d="M17.8131 0.00538C18.4463 -0.15091 20.3648 3.14642 20.8264 3.84781C25.4187 10.816 35.3089 26.9368 35.9383 34.8694C37.4182 53.5822 11.882 61.3357 2.53721 45.3789C-1.73471 38.0791 0.016 32.2049 3.178 25.0232C6.99221 16.3662 12.6411 7.90372 17.8131 0.00538ZM18.3738 7.24807L17.5881 7.48441C14.4452 12.9431 10.917 18.2341 8.19369 23.9368C4.6808 31.29 1.18317 38.5479 7.69403 45.5657C17.3058 55.9228 34.9847 46.8808 31.4604 32.8681C29.2558 24.0969 22.4207 15.2913 18.3776 7.24807H18.3738Z" fill="#C3C2C1"/>
    </svg>
  );
}

// Water drop SVG - half filled with blue water (Bambu Lab style from bambu-humidity)
function WaterDropHalf({ className }: { className?: string }) {
  return (
    <svg className={className} viewBox="0 0 35 53" fill="none" xmlns="http://www.w3.org/2000/svg">
      <path d="M17.3165 0.0038C17.932 -0.14959 19.7971 3.08645 20.2458 3.77481C24.7103 10.6135 34.3251 26.4346 34.937 34.2198C36.3757 52.5848 11.5505 60.1942 2.46584 44.534C-1.68714 37.3735 0.0148 31.6085 3.08879 24.5603C6.79681 16.0605 12.2884 7.75907 17.3165 0.0038ZM17.8615 7.11561L17.0977 7.34755C14.0423 12.7048 10.6124 17.8974 7.96483 23.4941C4.54975 30.7107 1.14949 37.8337 7.47908 44.721C16.8233 54.8856 34.01 46.0117 30.5838 32.2595C28.4405 23.6512 21.7957 15.0093 17.8652 7.11561H17.8615Z" fill="#C3C2C1"/>
      <path d="M5.03547 30.112C9.64453 30.4936 11.632 35.7985 16.4154 35.791C19.6339 35.7873 20.2161 33.2283 22.3853 31.6197C31.6776 24.7286 33.5835 37.4894 27.9881 44.4254C18.1878 56.5653 -1.16063 44.6013 5.03917 30.1158L5.03547 30.112Z" fill="#1F8FEB"/>
    </svg>
  );
}

// Water drop SVG - fully filled with blue water (Bambu Lab style from bambu-humidity)
function WaterDropFull({ className }: { className?: string }) {
  return (
    <svg className={className} viewBox="0 0 36 54" fill="none" xmlns="http://www.w3.org/2000/svg">
      <path d="M17.9625 4.48059L4.77216 26.3154L2.08228 40.2175L10.0224 50.8414H23.1594L33.3246 42.1693V30.2455L17.9625 4.48059Z" fill="#1F8FEB"/>
      <path d="M17.7948 0.00538C18.4273 -0.15091 20.3438 3.14642 20.8048 3.84781C25.3921 10.816 35.2715 26.9368 35.9001 34.8694C37.3784 53.5822 11.8702 61.3357 2.53562 45.3789C-1.73163 38.0829 0.0134 32.2087 3.1757 25.027C6.98574 16.3662 12.6284 7.90372 17.7948 0.00538ZM18.3549 7.24807L17.57 7.48441C14.4306 12.9431 10.9063 18.2341 8.1859 23.9368C4.67686 31.29 1.18305 38.5479 7.68679 45.5657C17.2881 55.9228 34.9476 46.8808 31.4271 32.8681C29.2249 24.0969 22.3974 15.2913 18.3587 7.24807H18.3549Z" fill="#C3C2C1"/>
    </svg>
  );
}

// Thermometer SVG - empty outline
function ThermometerEmpty({ className }: { className?: string }) {
  return (
    <svg className={className} viewBox="0 0 12 20" fill="none" xmlns="http://www.w3.org/2000/svg">
      <path d="M6 0.5C4.6 0.5 3.5 1.6 3.5 3V12.1C2.6 12.8 2 13.9 2 15C2 17.2 3.8 19 6 19C8.2 19 10 17.2 10 15C10 13.9 9.4 12.8 8.5 12.1V3C8.5 1.6 7.4 0.5 6 0.5Z" stroke="#C3C2C1" strokeWidth="1" fill="none"/>
      <circle cx="6" cy="15" r="2.5" stroke="#C3C2C1" strokeWidth="1" fill="none"/>
    </svg>
  );
}

// Thermometer SVG - half filled (gold - same as humidity fair)
function ThermometerHalf({ className }: { className?: string }) {
  return (
    <svg className={className} viewBox="0 0 12 20" fill="none" xmlns="http://www.w3.org/2000/svg">
      <rect x="4.5" y="8" width="3" height="4.5" fill="#d4a017" rx="0.5"/>
      <circle cx="6" cy="15" r="2" fill="#d4a017"/>
      <path d="M6 0.5C4.6 0.5 3.5 1.6 3.5 3V12.1C2.6 12.8 2 13.9 2 15C2 17.2 3.8 19 6 19C8.2 19 10 17.2 10 15C10 13.9 9.4 12.8 8.5 12.1V3C8.5 1.6 7.4 0.5 6 0.5Z" stroke="#C3C2C1" strokeWidth="1" fill="none"/>
    </svg>
  );
}

// Thermometer SVG - fully filled (red - same as humidity bad)
function ThermometerFull({ className }: { className?: string }) {
  return (
    <svg className={className} viewBox="0 0 12 20" fill="none" xmlns="http://www.w3.org/2000/svg">
      <rect x="4.5" y="3" width="3" height="9.5" fill="#c62828" rx="0.5"/>
      <circle cx="6" cy="15" r="2" fill="#c62828"/>
      <path d="M6 0.5C4.6 0.5 3.5 1.6 3.5 3V12.1C2.6 12.8 2 13.9 2 15C2 17.2 3.8 19 6 19C8.2 19 10 17.2 10 15C10 13.9 9.4 12.8 8.5 12.1V3C8.5 1.6 7.4 0.5 6 0.5Z" stroke="#C3C2C1" strokeWidth="1" fill="none"/>
    </svg>
  );
}

// Nozzle icon - schematic hot-end view (filament body + heater block + tip).
// Added for visual parity with the thermometer icons on the dual-nozzle card
// that previously had no icon at all (#1115, design by @m4rtini2).
function NozzleIcon({ className }: { className?: string }) {
  return (
    <svg
      className={className}
      viewBox="0 0 24 24"
      fill="none"
      xmlns="http://www.w3.org/2000/svg"
      stroke="currentColor"
      strokeWidth="1.5"
      strokeLinecap="round"
      strokeLinejoin="round"
    >
      <rect x="9.2" y="3.4" width="5.6" height="8.1" />
      <rect x="6" y="11.5" width="12.1" height="3.7" />
      <path d="M 7.3 15.2 L 12.1 19.6 L 16.7 15.2" />
    </svg>
  );
}

// Heater thermometer icon - filled when heating, outline when off
interface HeaterThermometerProps {
  className?: string;
  color: string;  // The color class (e.g., "text-orange-400")
  isHeating: boolean;
}

function HeaterThermometer({ className, color, isHeating }: HeaterThermometerProps) {
  // Extract the actual color from Tailwind class for SVG fill
  const colorMap: Record<string, string> = {
    'text-orange-400': '#fb923c',
    'text-blue-400': '#60a5fa',
    'text-green-400': '#4ade80',
  };
  const fillColor = colorMap[color] || '#888';

  // Glow style when heating
  const glowStyle = isHeating ? {
    filter: `drop-shadow(0 0 4px ${fillColor}) drop-shadow(0 0 8px ${fillColor})`,
  } : {};

  if (isHeating) {
    // Filled thermometer with glow - heater is ON
    return (
      <svg className={className} style={glowStyle} viewBox="0 0 12 20" fill="none" xmlns="http://www.w3.org/2000/svg">
        <rect x="4.5" y="3" width="3" height="9.5" fill={fillColor} rx="0.5"/>
        <circle cx="6" cy="15" r="2" fill={fillColor}/>
        <path d="M6 0.5C4.6 0.5 3.5 1.6 3.5 3V12.1C2.6 12.8 2 13.9 2 15C2 17.2 3.8 19 6 19C8.2 19 10 17.2 10 15C10 13.9 9.4 12.8 8.5 12.1V3C8.5 1.6 7.4 0.5 6 0.5Z" stroke={fillColor} strokeWidth="1" fill="none"/>
      </svg>
    );
  }

  // Empty thermometer - heater is OFF
  return (
    <svg className={className} viewBox="0 0 12 20" fill="none" xmlns="http://www.w3.org/2000/svg">
      <path d="M6 0.5C4.6 0.5 3.5 1.6 3.5 3V12.1C2.6 12.8 2 13.9 2 15C2 17.2 3.8 19 6 19C8.2 19 10 17.2 10 15C10 13.9 9.4 12.8 8.5 12.1V3C8.5 1.6 7.4 0.5 6 0.5Z" stroke={fillColor} strokeWidth="1" fill="none"/>
      <circle cx="6" cy="15" r="2.5" stroke={fillColor} strokeWidth="1" fill="none"/>
    </svg>
  );
}

// AMS Filament Backup tri-state indicator + toggle.
// state=true  → ON, click to disable
// state=false → OFF, click opens modal
// state=null  → unknown/unsupported (e.g. A1 family), click disabled
interface AmsBackupBadgeProps {
  state: boolean | null;
  onClick: () => void;
}

function AmsBackupBadge({ state, onClick }: AmsBackupBadgeProps) {
  const { t } = useTranslation();
  const known = state !== null;

  let className = 'flex items-center justify-center w-[18px] h-[18px] rounded text-[length:var(--pc-t10,10px)] transition-colors ';
  let title: string;
  if (state === true) {
    className += known
      ? 'bg-blue-100 dark:bg-blue-500/20 text-blue-700 dark:text-blue-400 hover:bg-blue-500/30 cursor-pointer'
      : 'bg-blue-100 dark:bg-blue-500/20 text-blue-700 dark:text-blue-400 cursor-default';
    title = t('printers.amsBackup.titleOn');
  } else if (state === false) {
    className += known
      ? 'bg-bambu-dark text-bambu-gray hover:text-white hover:bg-bambu-dark/80 cursor-pointer'
      : 'bg-bambu-dark text-bambu-gray cursor-default';
    title = t('printers.amsBackup.titleOff');
  } else {
    className += 'bg-bambu-dark text-bambu-gray/50 cursor-default';
    title = t('printers.amsBackup.titleUnknown');
  }

  return (
    <button
      type="button"
      disabled={!known}
      onClick={() => known && onClick()}
      className={className}
      title={title}
      aria-label={title}
    >
      {known ? <Repeat className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)]" /> : <span>?</span>}
    </button>
  );
}

// Hide/show the external spool in the filament row (#1782). Sized and shaped
// like AmsBackupBadge so the two sit together in the section header, but
// pinned to the right-hand end of the rule: this is a view preference for the
// row, not a property of the printer.
interface ExternalSpoolToggleProps {
  hidden: boolean;
  onClick: () => void;
}

function ExternalSpoolToggle({ hidden, onClick }: ExternalSpoolToggleProps) {
  const { t } = useTranslation();
  const title = hidden ? t('printers.externalSpool.show') : t('printers.externalSpool.hide');

  return (
    <button
      type="button"
      onClick={onClick}
      aria-pressed={hidden}
      className={`flex items-center justify-center w-[18px] h-[18px] rounded transition-colors cursor-pointer ${
        hidden
          ? 'bg-bambu-green/20 text-bambu-green hover:bg-bambu-green/30'
          : 'bg-bambu-dark text-bambu-gray hover:text-white hover:bg-bambu-dark/80'
      }`}
      title={title}
      aria-label={title}
    >
      {hidden ? <EyeOff className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)]" /> : <Eye className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)]" />}
    </button>
  );
}

// Humidity indicator with water drop that fills based on level (Bambu Lab style)
// Reference: https://github.com/theicedmango/bambu-humidity
interface HumidityIndicatorProps {
  humidity: number | string;
  goodThreshold?: number;  // <= this is green
  fairThreshold?: number;  // <= this is orange, > is red
  onClick?: () => void;
  compact?: boolean;  // Smaller version for grid layout
}

function HumidityIndicator({ humidity, goodThreshold = 40, fairThreshold = 60, onClick, compact }: HumidityIndicatorProps) {
  const humidityValue = typeof humidity === 'string' ? parseInt(humidity, 10) : humidity;
  const good = typeof goodThreshold === 'number' ? goodThreshold : 40;
  const fair = typeof fairThreshold === 'number' ? fairThreshold : 60;

  // Status thresholds (configurable via settings)
  // Good: ≤goodThreshold (green #22a352), Fair: ≤fairThreshold (gold #d4a017), Bad: >fairThreshold (red #c62828)
  let textColor: string;
  let statusText: string;

  if (isNaN(humidityValue)) {
    textColor = '#C3C2C1';
    statusText = 'Unknown';
  } else if (humidityValue <= good) {
    textColor = '#22a352'; // Green - Good
    statusText = 'Good';
  } else if (humidityValue <= fair) {
    textColor = '#d4a017'; // Gold - Fair
    statusText = 'Fair';
  } else {
    textColor = '#c62828'; // Red - Bad
    statusText = 'Bad';
  }

  // Fill level based on status: Good=Empty (dry), Fair=Half, Bad=Full (wet)
  let DropComponent: React.FC<{ className?: string }>;
  if (isNaN(humidityValue)) {
    DropComponent = WaterDropEmpty;
  } else if (humidityValue <= good) {
    DropComponent = WaterDropEmpty; // Good - empty drop (dry)
  } else if (humidityValue <= fair) {
    DropComponent = WaterDropHalf; // Fair - half filled
  } else {
    DropComponent = WaterDropFull; // Bad - full (too humid)
  }

  return (
    <button
      type="button"
      onClick={onClick}
      className={`flex items-center gap-1 ${onClick ? 'cursor-pointer hover:opacity-80 transition-opacity' : ''}`}
      title={`Humidity: ${humidityValue}% - ${statusText}${onClick ? ' (click for history)' : ''}`}
    >
      <DropComponent className={compact ? "w-2.5 h-3" : "w-3 h-4"} />
      <span className={`font-medium tabular-nums ${compact ? 'text-[length:var(--pc-t10,10px)]' : 'text-xs'}`} style={{ color: textColor }}>{humidityValue}%</span>
    </button>
  );
}

// Temperature indicator with dynamic icon and coloring
interface TemperatureIndicatorProps {
  temp: number;
  goodThreshold?: number;  // <= this is blue
  fairThreshold?: number;  // <= this is orange, > is red
  onClick?: () => void;
  compact?: boolean;  // Smaller version for grid layout
}

function TemperatureIndicator({ temp, goodThreshold = 28, fairThreshold = 35, onClick, compact }: TemperatureIndicatorProps) {
  // Ensure thresholds are numbers
  const good = typeof goodThreshold === 'number' ? goodThreshold : 28;
  const fair = typeof fairThreshold === 'number' ? fairThreshold : 35;

  let textColor: string;
  let statusText: string;
  let ThermoComponent: React.FC<{ className?: string }>;

  if (temp <= good) {
    textColor = '#22a352'; // Green - good (same as humidity)
    statusText = 'Good';
    ThermoComponent = ThermometerEmpty;
  } else if (temp <= fair) {
    textColor = '#d4a017'; // Gold - fair (same as humidity)
    statusText = 'Fair';
    ThermoComponent = ThermometerHalf;
  } else {
    textColor = '#c62828'; // Red - bad (same as humidity)
    statusText = 'Bad';
    ThermoComponent = ThermometerFull;
  }

  return (
    <button
      type="button"
      onClick={onClick}
      className={`flex items-center gap-1 ${onClick ? 'cursor-pointer hover:opacity-80 transition-opacity' : ''}`}
      title={`Temperature: ${temp}°C - ${statusText}${onClick ? ' (click for history)' : ''}`}
    >
      <ThermoComponent className={compact ? "w-2.5 h-3" : "w-3 h-4"} />
      <span className={`tabular-nums text-right ${compact ? 'text-[length:var(--pc-t10,10px)] w-8' : 'w-12'}`} style={{ color: textColor }}>{temp}°C</span>
    </button>
  );
}



/** Classify an empty AMS slot for UI rendering (#1322 follow-up).
 *
 *  "physical" — firmware positively confirmed no spool (state 9 or 10). The
 *  bambu_mqtt handler now promotes tray_exist_bits=0 slots to state=9, so
 *  every empty-by-bitmask slot lands here regardless of firmware payload
 *  shape.
 *
 *  "reset" — tray_type is missing/empty but firmware hasn't confirmed
 *  emptiness (state is null, 3, or any non-9/10 value). Typically a slot
 *  the user cleared with "Reset Slot" where a physical spool may still be
 *  loaded but unassigned.
 *
 *  Returns null when the slot is loaded (tray_type is present).
 */
function getEmptySlotKind(tray: { tray_type?: string | null; state?: number | null; exists?: boolean | null } | null | undefined): 'physical' | 'reset' | null {
  if (tray?.tray_type) return null;
  // tray_exist_bits is firmware's authoritative presence signal: a non-RFID
  // spool the firmware can't identify is physically present (exists === true)
  // but carries no tray_type, so it must read as "?" (loaded, unconfigured),
  // never "Empty" (#2527). BambuStudio draws it the same way. Only fall back to
  // the state=9/10 heuristic when the bitmask was unavailable (exists == null).
  if (tray?.exists === true) return 'reset';
  if (tray?.exists === false) return 'physical';
  return (tray?.state === 9 || tray?.state === 10) ? 'physical' : 'reset';
}

// How long to wait for an AMS to report a live drying cycle after the printer
// acked the start command (#2533). Firmware moves to DryStatus 1 (Checking)
// within a couple of seconds; 30s covers the slowest observed push cadence
// without leaving the user waiting on a verdict.
const DRY_START_CONFIRM_MS = 30_000;


export function CoverImage({
  url,
  printName,
  className = 'w-20 h-20',
  radiusClass = 'rounded-lg',
}: {
  url: string | null;
  printName?: string;
  className?: string;
  radiusClass?: string;
}) {
  const { t } = useTranslation();
  const [loaded, setLoaded] = useState(false);
  const [error, setError] = useState(false);
  const [showOverlay, setShowOverlay] = useState(false);
  const imgRef = useRef<HTMLImageElement>(null);

  // Cache-bust the image URL when the print name changes so the browser
  // fetches the new cover instead of serving the stale cached image.
  const cacheBustedUrl = useMemo(() => {
    if (!url) return null;
    const sep = url.includes('?') ? '&' : '?';
    return withStreamToken(`${url}${sep}v=${encodeURIComponent(printName || Date.now().toString())}`);
  }, [url, printName]);

  // Re-evaluate load state when the image URL changes, and ask the element
  // whether it is already showing something rather than assuming it is not.
  //
  // `onLoad` used to be the only thing that could set `loaded`, and this
  // effect reset it to false unconditionally. That is right when the URL
  // really changes, but it also runs on mount — and the two are not the same
  // situation (#2826). The URL is cache-busted on the print *name*, which is
  // constant for the duration of a print, so navigating away from the
  // printers page and back re-mounts with a byte-identical src that the
  // browser serves from its in-memory cache. The `load` event for a cache hit
  // and React's passive-effect flush are both plain tasks with no ordering
  // between them, so when `load` won, this effect ran afterwards and undid
  // it: `loaded` stayed false, the img stayed `hidden`, and the placeholder
  // sat there until a full reload. Nothing recovered it, because the URL
  // never changes again during the print and so this effect never re-runs.
  //
  // Being a race, it reproduced every time for #2826's reporter and not at
  // all here, which is also why the network panel showed no request: there
  // was no request to show.
  //
  // Asking `complete && naturalWidth > 0` settles it without needing to know
  // which of the two ran first. It is also correct for the case the reporter
  // proposed (a `load` that fires before React's handler is live), so the
  // fix stands whichever mechanism is really at work.
  useEffect(() => {
    setError(false);
    const el = imgRef.current;
    setLoaded(Boolean(el?.complete && el.naturalWidth > 0));
  }, [cacheBustedUrl]);

  return (
    <>
      <div
        className={`${className} flex-shrink-0 ${radiusClass} overflow-hidden bg-bambu-dark-tertiary flex items-center justify-center ${cacheBustedUrl && loaded ? 'cursor-pointer' : ''}`}
        onClick={() => cacheBustedUrl && loaded && setShowOverlay(true)}
      >
        {cacheBustedUrl && !error ? (
          <>
            <img
              ref={imgRef}
              src={cacheBustedUrl}
              alt={t('printers.printPreview')}
              className={`w-full h-full object-cover ${loaded ? 'block' : 'hidden'}`}
              onLoad={() => setLoaded(true)}
              onError={() => setError(true)}
            />
            {!loaded && <Box className="w-8 h-8 text-bambu-gray" />}
          </>
        ) : (
          <Box className="w-8 h-8 text-bambu-gray" />
        )}
      </div>

      {/* Cover Image Overlay */}
      {showOverlay && cacheBustedUrl && (
        <div
          className="fixed inset-0 bg-black/80 flex items-center justify-center z-50 p-8"
          onClick={() => setShowOverlay(false)}
        >
          <div className="relative max-w-2xl max-h-full">
            <img
              src={cacheBustedUrl}
              alt={t('printers.printPreview')}
              className="max-w-full max-h-[80vh] rounded-lg shadow-2xl"
            />
            {printName && (
              <p className="text-white text-center mt-4 text-lg">{printName}</p>
            )}
          </div>
        </div>
      )}
    </>
  );
}

interface PrinterMaintenanceInfo {
  due_count: number;
  warning_count: number;
  total_print_hours: number;
}

// Status summary bar component - uses queryClient to read cached statuses
function StatusSummaryBar({ printers }: { printers: Printer[] | undefined }) {
  const { t } = useTranslation();
  const queryClient = useQueryClient();

  // Subscribe to query cache changes to re-render when status updates
  // Throttled to prevent rapid re-renders from causing tab crashes
  const [cacheTick, setCacheTick] = useState(0);
  useEffect(() => {
    let pending = false;
    const unsubscribe = queryClient.getQueryCache().subscribe(() => {
      if (!pending) {
        pending = true;
        requestAnimationFrame(() => {
          setCacheTick(t => t + 1);
          pending = false;
        });
      }
    });
    return () => unsubscribe();
  }, [queryClient]);

  const { counts, nextFinish } = useMemo(() => {
    let printing = 0;
    let paused = 0;
    let finished = 0;
    let idle = 0;
    let offline = 0;
    let loading = 0;
    let error = 0;
    let nextPrinterName: string | null = null;
    let nextRemainingMin: number | null = null;
    let nextProgress: number = 0;

    printers?.forEach((printer) => {
      const status = queryClient.getQueryData<{ connected: boolean; state: string | null; remaining_time: number | null; progress: number | null; hms_errors?: HMSError[] }>(['printerStatus', printer.id]);
      if (status === undefined) {
        // Status not yet loaded - don't count as offline yet
        loading++;
      } else if (!status.connected) {
        offline++;
      } else {
        // Count printers with active HMS errors as problems
        const knownHmsCount =
          status.hms_errors ? filterKnownHMSErrors(status.hms_errors).length : 0;
        if (knownHmsCount > 0) {
          error++;
        }
        switch (status.state) {
          case 'RUNNING':
            printing++;
            if (status.remaining_time != null && status.remaining_time > 0) {
              if (nextRemainingMin === null || status.remaining_time < nextRemainingMin) {
                nextRemainingMin = status.remaining_time;
                nextPrinterName = printer.name;
                nextProgress = status.progress || 0;
              }
            }
            break;
          case 'PAUSE':
            paused++;
            break;
          case 'FINISH':
            finished++;
            break;
          case 'FAILED':
            // FAILED is the printer's terminal gcode_state after a print stops —
            // including user cancellations, where there's no actual fault. Only
            // count it as a "problem" when an HMS error is also active; otherwise
            // it's just a print that ended unsuccessfully and the plate needs
            // clearing (same as FINISH from the operator's perspective).
            if (knownHmsCount > 0) {
              // Already counted above
            } else {
              finished++;
            }
            break;
          default:
            idle++;
            break;
        }
      }
    });

    return {
      counts: { printing, paused, finished, idle, offline, loading, error, total: (printers?.length || 0) },
      nextFinish: nextPrinterName && nextRemainingMin ? { name: nextPrinterName, remainingMin: nextRemainingMin, progress: nextProgress } : null,
    };
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [printers, queryClient, cacheTick]);

  if (!printers?.length) return null;

  const badges: { count: number; dot: string; label: string }[] = [
    { count: counts.printing, dot: 'bg-bambu-green animate-pulse', label: t('printers.status.printing').toLowerCase() },
    { count: counts.paused, dot: 'bg-status-warning', label: t('printers.status.paused', 'paused').toLowerCase() },
    { count: counts.finished, dot: 'bg-blue-400', label: t('printers.status.finished', 'finished').toLowerCase() },
    { count: counts.idle, dot: counts.idle > 0 ? 'bg-bambu-green' : 'bg-gray-500', label: t('printers.status.available').toLowerCase() },
    { count: counts.error, dot: 'bg-status-error', label: t('printers.status.problem').toLowerCase() },
    { count: counts.offline, dot: 'bg-gray-400', label: t('printers.status.offline').toLowerCase() },
  ];

  return (
    <div className="mt-1 flex flex-wrap items-center gap-4 gap-y-2 text-bambu-gray">
      {badges.map(({ count, dot, label }) => count > 0 && (
        <div key={label} className="flex items-center gap-1.5">
          <div className={`w-2 h-2 rounded-full ${dot}`} />
          <span className="text-bambu-gray">
            <span className="text-white font-medium">{count}</span> {label}
          </span>
        </div>
      ))}
      {nextFinish && (
        <>
          <div className="w-px h-4 bg-bambu-dark-tertiary" />
          <div className="flex flex-col gap-1 sm:flex-row sm:items-center sm:gap-2">
            <div className="flex items-center gap-2">
              <span className="text-bambu-green font-medium">{t('printers.nextAvailable')}:</span>
              <span className="text-white font-medium">{nextFinish.name}</span>
            </div>
            <div className="flex items-center gap-2 w-full sm:w-auto">
              <div className="w-full sm:w-16 bg-bambu-dark-tertiary rounded-full h-1.5">
                <div
                  className="bg-bambu-green h-1.5 rounded-full transition-all"
                  style={{ width: `${nextFinish.progress}%` }}
                />
              </div>
              <span className="text-white font-medium">{Math.round(nextFinish.progress)}%</span>
              <span className="text-bambu-gray">({formatDuration(nextFinish.remainingMin * 60)})</span>
            </div>
          </div>
        </>
      )}
    </div>
  );
}

type SortOption = 'name' | 'status' | 'model' | 'location' | 'eta';
type ViewMode = 'expanded' | 'compact';

type ToolbarDropdownOption<T extends string> = {
  value: T;
  label: string;
};

function ToolbarDropdown<T extends string>({
  value,
  options,
  onChange,
  fullWidth = false,
}: {
  value: T;
  options: ToolbarDropdownOption<T>[];
  onChange: (value: T) => void;
  fullWidth?: boolean;
}) {
  const [isOpen, setIsOpen] = useState(false);
  const selectedOption = options.find(option => option.value === value) ?? options[0];

  return (
    <div className={`relative ${fullWidth ? 'w-full min-w-0' : ''}`}>
      <button
        type="button"
        onClick={() => setIsOpen(open => !open)}
        className={`h-8 px-2 rounded-lg border bg-bambu-dark border-bambu-dark-tertiary text-white text-sm font-medium transition-colors hover:bg-bambu-dark-tertiary focus:outline-none focus:border-bambu-green flex items-center justify-between gap-2 ${fullWidth ? 'w-full' : 'min-w-28'}`}
      >
        <span className="truncate">{selectedOption?.label}</span>
        <ChevronDown className={`w-4 h-4 text-bambu-gray transition-transform ${isOpen ? 'rotate-180' : ''}`} />
      </button>

      {isOpen && (
        <>
          <div className="fixed inset-0 z-10" onClick={() => setIsOpen(false)} />
          <div className="absolute left-0 top-full z-20 mt-1 min-w-full rounded-lg border border-bambu-dark-tertiary bg-bambu-dark-secondary py-1 shadow-xl">
            {options.map(option => (
              <button
                key={option.value}
                type="button"
                onClick={() => {
                  onChange(option.value);
                  setIsOpen(false);
                }}
                className={`w-full px-3 py-2 text-left text-sm transition-colors hover:bg-bambu-dark-tertiary ${
                  option.value === value ? 'text-bambu-green' : 'text-white'
                }`}
              >
                {option.label}
              </button>
            ))}
          </div>
        </>
      )}
    </div>
  );
}

function ToolbarMenu({
  label,
  icon,
  children,
}: {
  label: string;
  icon: React.ReactNode;
  children: React.ReactNode;
}) {
  const [isOpen, setIsOpen] = useState(false);

  return (
    <div className="relative">
      <button
        type="button"
        onClick={() => setIsOpen(open => !open)}
        className="h-8 w-8 rounded-lg border bg-bambu-dark border-bambu-dark-tertiary text-white hover:bg-bambu-dark-tertiary transition-colors flex items-center justify-center"
        aria-label={label}
        title={label}
      >
        {icon}
      </button>

      {isOpen && (
        <>
          <div className="fixed inset-0 z-10" onClick={() => setIsOpen(false)} />
          <div className="absolute right-0 top-full z-20 mt-1 min-w-40 rounded-lg border border-bambu-dark-tertiary bg-bambu-dark-secondary p-2 shadow-xl">
            {children}
          </div>
        </>
      )}
    </div>
  );
}

function IndicatorControlPopover({
  title,
  options = [],
  unit,
  customMin,
  customMax,
  customStep = 1,
  widthClass = 'w-[240px]',
  popoverWidth = 240,
  popoverHeight = 280,
  isPending,
  onClose,
  onSubmit,
  children,
}: {
  title: string;
  options?: Array<{ label: string; value: number }>;
  unit?: string;
  customMin?: number;
  customMax?: number;
  customStep?: number;
  widthClass?: string;
  popoverWidth?: number;
  popoverHeight?: number;
  isPending?: boolean;
  onClose: () => void;
  onSubmit?: (value: number) => void;
  children?: React.ReactNode;
}) {
  const anchorRef = useRef<HTMLSpanElement>(null);
  const [coords, setCoords] = useState<{ top: number; left: number } | null>(null);
  const [customValue, setCustomValue] = useState('');

  // Anchor to the trigger (the popover's DOM parent before portaling) so we
  // can position via fixed coords. Portaling to document.body escapes
  // ancestor stacking contexts — sibling PrinterCard wrappers create their
  // own contexts and would otherwise cover the popover even at z-[60].
  useLayoutEffect(() => {
    const trigger = anchorRef.current?.parentElement;
    if (!trigger) return;
    const measure = () => {
      const rect = trigger.getBoundingClientRect();
      setCoords(computePopoverPosition({
        triggerRect: rect,
        popoverWidth,
        estimatedHeight: popoverHeight,
        horizontalAlign: 'center',
      }));
    };
    measure();
    window.addEventListener('resize', measure);
    window.addEventListener('scroll', measure, true);
    return () => {
      window.removeEventListener('resize', measure);
      window.removeEventListener('scroll', measure, true);
    };
  }, [popoverWidth, popoverHeight]);

  const showCustomInput = unit !== undefined;
  const submitCustom = () => {
    const value = Number(customValue);
    if (!Number.isFinite(value)) return;
    const bounded = Math.min(customMax ?? value, Math.max(customMin ?? value, value));
    onSubmit?.(Math.round(bounded));
  };

  return (
    <>
      <span ref={anchorRef} className="hidden" aria-hidden="true" />
      {createPortal(
        <>
          <div className="fixed inset-0 z-[1000]" onClick={onClose} />
          <div
            className={`fixed z-[1001] flex ${widthClass} flex-col overflow-hidden rounded-xl border border-bambu-dark-tertiary bg-bambu-dark-secondary shadow-2xl`}
            style={{
              top: coords?.top ?? -9999,
              left: coords?.left ?? -9999,
              visibility: coords ? 'visible' : 'hidden',
            }}
            onClick={e => e.stopPropagation()}
          >
        <div className="shrink-0 px-3 py-2.5 text-center text-sm font-medium text-white">{title}</div>
        <div className="shrink-0 h-px bg-bambu-dark-tertiary" />
        {options.length > 0 && (
          <div className="px-3 py-2.5">
            <div className="grid grid-cols-2 gap-1.5">
              {options.map(option => (
                <button
                  key={`${option.label}-${option.value}`}
                  type="button"
                  disabled={isPending}
                  onClick={() => onSubmit?.(option.value)}
                  className="h-8 rounded-lg border border-bambu-dark-tertiary bg-bambu-dark px-2 text-xs font-medium text-white transition-colors hover:bg-bambu-dark-tertiary disabled:cursor-not-allowed disabled:opacity-50"
                >
                  {option.label}
                </button>
              ))}
            </div>
          </div>
        )}
        {children}
        {showCustomInput && (
          <>
            <div className="shrink-0 h-px bg-bambu-dark-tertiary" />
            <form
              className="flex gap-1.5 px-3 pt-2.5 pb-3"
              onSubmit={(e) => {
                e.preventDefault();
                submitCustom();
              }}
            >
              <input
                type="number"
                min={customMin}
                max={customMax}
                step={customStep}
                value={customValue}
                onChange={e => setCustomValue(e.target.value)}
                placeholder="Custom"
                className="h-8 min-w-0 flex-1 rounded-lg border border-bambu-dark-tertiary bg-bambu-dark px-2 text-xs text-white placeholder:text-bambu-gray/60 focus:border-bambu-green focus:outline-none"
              />
              <button
                type="submit"
                disabled={isPending || customValue.trim() === ''}
                className="h-8 rounded-lg border border-bambu-dark-tertiary bg-bambu-dark px-2 text-xs font-medium text-white transition-colors hover:bg-bambu-dark-tertiary disabled:cursor-not-allowed disabled:opacity-50"
              >
                Set
              </button>
            </form>
          </>
        )}
          </div>
        </>,
        document.body
      )}
    </>
  );
}

const NOZZLE_TEMPERATURE_OPTIONS = buildPresetOptions(NOZZLE_TEMP_DEFAULTS, 'C');

function NozzleTemperatureControlBox({
  label,
  current,
  target,
  isActive,
  isPending,
  onSubmit,
  options = NOZZLE_TEMPERATURE_OPTIONS,
}: {
  label: string;
  current?: number;
  target?: number;
  isActive: boolean;
  isPending?: boolean;
  onSubmit: (value: number) => void;
  options?: Array<{ label: string; value: number }>;
}) {
  const [customValue, setCustomValue] = useState('');

  const submitCustom = () => {
    const value = Number(customValue);
    if (!Number.isFinite(value)) return;
    onSubmit(Math.min(320, Math.max(0, Math.round(value))));
  };

  return (
    <div className={`rounded-lg border p-2 ${isActive ? 'border-amber-500/60 dark:border-amber-400/60 bg-amber-50 dark:bg-amber-400/10' : 'border-bambu-dark-tertiary bg-bambu-dark'}`}>
      <div className="mb-1.5 flex items-center justify-between gap-2">
        <span className={`text-xs font-medium ${isActive ? 'text-amber-700 dark:text-amber-300' : 'text-white'}`}>{label}</span>
        <span className="text-[10px] text-bambu-gray">
          {Math.round(current ?? 0)}°C
          {target !== undefined ? ` / ${Math.round(target)}°` : ''}
        </span>
      </div>
      <div className="grid grid-cols-2 gap-1">
        {options.map(option => (
          <button
            key={`${label}-${option.value}`}
            type="button"
            disabled={isPending}
            onClick={() => onSubmit(option.value)}
            className="h-7 rounded-md border border-bambu-dark-tertiary bg-bambu-dark-secondary px-1.5 text-[11px] font-medium text-white transition-colors hover:bg-bambu-dark-tertiary disabled:cursor-not-allowed disabled:opacity-50"
          >
            {option.label}
          </button>
        ))}
      </div>
      <form
        className="mt-1.5 flex gap-1"
        onSubmit={(e) => {
          e.preventDefault();
          submitCustom();
        }}
      >
        <input
          type="number"
          min={0}
          max={320}
          step={1}
          value={customValue}
          onChange={e => setCustomValue(e.target.value)}
          placeholder="Custom"
          className="h-7 min-w-0 flex-1 rounded-md border border-bambu-dark-tertiary bg-bambu-dark-secondary px-1.5 text-[11px] text-white placeholder:text-bambu-gray/60 focus:border-bambu-green focus:outline-none"
        />
        <button
          type="submit"
          disabled={isPending || customValue.trim() === ''}
          className="h-7 rounded-md border border-bambu-dark-tertiary bg-bambu-dark-secondary px-2 text-[11px] font-medium text-white transition-colors hover:bg-bambu-dark-tertiary disabled:cursor-not-allowed disabled:opacity-50"
        >
          Set
        </button>
      </form>
    </div>
  );
}

const STATUS_GROUP_ORDER: string[] = ['error', 'printing', 'paused', 'finished', 'idle', 'offline'];

const STATUS_GROUP_META: Record<string, { labelKey: string; dot: string }> = {
  error:    { labelKey: 'printers.status.problem',   dot: 'bg-status-error' },
  printing: { labelKey: 'printers.status.printing',  dot: 'bg-bambu-green animate-pulse' },
  paused:   { labelKey: 'printers.status.paused',    dot: 'bg-status-warning' },
  finished: { labelKey: 'printers.status.finished',  dot: 'bg-blue-400' },
  idle:     { labelKey: 'printers.status.idle',       dot: 'bg-bambu-green' },
  offline:  { labelKey: 'printers.status.offline',   dot: 'bg-gray-400' },
};

/** Classify a printer into one of the UI status buckets. */
function classifyPrinterStatus(
  status: { connected: boolean; state: string | null; hms_errors?: HMSError[] } | undefined,
): PrinterState {
  if (!status?.connected) return 'offline';
  const hmsErrors = status.hms_errors ? filterKnownHMSErrors(status.hms_errors) : [];
  if (hmsErrors.length > 0) return 'error';
  switch (status.state) {
    case 'RUNNING': return 'printing';
    case 'PAUSE':   return 'paused';
    case 'FINISH':  return 'finished';
    // FAILED without an active HMS error is the printer's terminal state after
    // any unsuccessful end — including user-cancellations. Treat the same as
    // FINISH for grouping/badging purposes; only escalate to "error" when an
    // HMS code is actually attached (handled by the early-return above).
    case 'FAILED':  return 'finished';
    default:        return 'idle';
  }
}

/**
 * Get human-readable status display text for a printer.
 * Uses stg_cur_name for detailed calibration/preparation stages,
 * otherwise formats the gcode_state nicely.
 */
function getStatusDisplay(state: string | null | undefined, stg_cur_name: string | null | undefined): string {
  // If we have a specific stage name (calibration, heating, etc.), use it
  if (stg_cur_name) {
    return stg_cur_name;
  }

  // Format the gcode_state nicely
  switch (state) {
    case 'RUNNING':
      return 'Printing';
    case 'PAUSE':
      return 'Paused';
    case 'FINISH':
      return 'Finished';
    case 'FAILED':
      return 'Failed';
    case 'IDLE':
      return 'Idle';
    default:
      return state ? state.charAt(0) + state.slice(1).toLowerCase() : 'Idle';
  }
}

// Bambu models that ship with an enclosure chamber fan (firmware field
// `big_fan2_speed`). Open-frame models (A1 / A1 Mini / A2L / P1P) have no
// chamber fan — `big_fan2_speed` is meaningless / always 0 there, so the
// widget is hidden in fanItems instead of rendered greyed-out.
const MODELS_WITH_CHAMBER_FAN: ReadonlySet<string> = new Set([
  'X1C',
  'X1',
  'X1E',
  'X2D',
  'P1S',
  'P2S',
  'H2D',
  'H2D Pro',
  'H2C',
  'H2S',
]);

// On the P2S/X2D, the enclosure fan (big_fan2 / airduct part id 3) is a
// dedicated chamber EXHAUST fan: it's its own control and stays the same
// regardless of cooling/heating mode (unlike the aux fan, id 2, which a flap
// re-tasks between part-cooling and chamber-filter recirculation). Bambu's own
// firmware/UI and Bambu Studio (FAN_CHAMBER_0_IDX -> "Exhaust") label it
// "Exhaust" on these models. Other enclosed models (X1/P1S/H2*) keep "Chamber".
const MODELS_WITH_EXHAUST_LABEL: ReadonlySet<string> = new Set([
  'P2S',
  'X2D',
]);

// Map SSDP model codes to display names
function mapModelCode(ssdpModel: string | null): string {
  if (!ssdpModel) return '';
  const modelMap: Record<string, string> = {
    // H2 Series
    'O1D': 'H2D',
    'O1E': 'H2D Pro',
    'O2D': 'H2D Pro',
    'O1C': 'H2C',
    'O1C2': 'H2C',
    'O1S': 'H2S',
    // X1 Series
    'BL-P001': 'X1C',
    'BL-P002': 'X1',
    'BL-P003': 'X1E',
    // X2 Series
    'N6': 'X2D',
    // A2 Series
    'N9': 'A2L',
    // P Series
    'C11': 'P1S',
    'C12': 'P1P',
    'C13': 'P2S',
    // A1 Series
    'N2S': 'A1',
    'N1': 'A1 Mini',
    // Direct matches
    'X1C': 'X1C',
    'X1': 'X1',
    'X1E': 'X1E',
    'X2D': 'X2D',
    'P1S': 'P1S',
    'P1P': 'P1P',
    'P2S': 'P2S',
    'A1': 'A1',
    'A1 Mini': 'A1 Mini',
    'A2L': 'A2L',
    'H2D': 'H2D',
    'H2D Pro': 'H2D Pro',
    'H2C': 'H2C',
    'H2S': 'H2S',
  };
  return modelMap[ssdpModel] || ssdpModel;
}

// ─── AMS Name Hover Card ──────────────────────────────────────────────────────
// Wraps the AMS label (e.g. "AMS-A") and shows a popup with:
//  • User-defined friendly name (editable, protected by printers:update)
//  • AMS serial number
//  • AMS firmware version
export function AmsNameHoverCard({
  ams,
  printerId,
  label,
  amsLabels,
  canEdit,
  onSaved,
  children,
}: {
  ams: import('../api/client').AMSUnit;
  printerId: number;
  label: string;           // auto-generated label, e.g. "AMS-A"
  amsLabels?: Record<number, string>;
  canEdit: boolean;
  onSaved: () => void;
  children: React.ReactNode;
}) {
  const { t } = useTranslation();
  const [isVisible, setIsVisible] = useState(false);
  const [position, setPosition] = useState<'top' | 'bottom'>('top');
  const [editValue, setEditValue] = useState('');
  const [isSaving, setIsSaving] = useState(false);
  const [saveError, setSaveError] = useState<string | null>(null);
  const [isInputFocused, setIsInputFocused] = useState(false);
  const triggerRef = useRef<HTMLDivElement>(null);
  const cardRef = useRef<HTMLDivElement>(null);
  const timeoutRef = useRef<ReturnType<typeof setTimeout> | null>(null);

  useEffect(() => {
    if (isVisible) {
      setEditValue(amsLabels?.[ams.id] ?? '');
      setSaveError(null);
      requestAnimationFrame(() => {
        if (triggerRef.current && cardRef.current) {
          const rect = triggerRef.current.getBoundingClientRect();
          const spaceAbove = rect.top - 56;
          const spaceBelow = window.innerHeight - rect.bottom;
          setPosition(spaceAbove < cardRef.current.offsetHeight + 12 && spaceBelow > spaceAbove ? 'bottom' : 'top');
        }
      });
    }
  }, [isVisible, amsLabels, ams.id]);

  const handleMouseEnter = () => {
    if (timeoutRef.current) clearTimeout(timeoutRef.current);
    timeoutRef.current = setTimeout(() => setIsVisible(true), 80);
  };
  const handleMouseLeave = () => {
    if (timeoutRef.current) clearTimeout(timeoutRef.current);
    if (!isInputFocused) {
      timeoutRef.current = setTimeout(() => setIsVisible(false), 200);
    }
  };
  useEffect(() => () => { if (timeoutRef.current) clearTimeout(timeoutRef.current); }, []);

  const handleSave = async () => {
    if (!canEdit) return;
    setIsSaving(true);
    setSaveError(null);
    try {
      const trimmed = editValue.trim();
      if (trimmed) {
        await api.saveAmsLabel(printerId, ams.id, trimmed, ams.serial_number);
      } else {
        await api.deleteAmsLabel(printerId, ams.id, ams.serial_number);
      }
      onSaved();
      setIsVisible(false);
    } catch (err) {
      setSaveError(err instanceof Error ? err.message : String(err));
    } finally {
      setIsSaving(false);
    }
  };

  const handleClear = async () => {
    if (!canEdit) return;
    setIsSaving(true);
    setSaveError(null);
    try {
      await api.deleteAmsLabel(printerId, ams.id, ams.serial_number);
      onSaved();
      setIsVisible(false);
    } catch (err) {
      setSaveError(err instanceof Error ? err.message : String(err));
    } finally {
      setIsSaving(false);
    }
  };

  return (
    <div
      ref={triggerRef}
      className="relative inline-block"
      onMouseEnter={handleMouseEnter}
      onMouseLeave={handleMouseLeave}
    >
      {children}

      {isVisible && (
        <div
          ref={cardRef}
          className={`
            absolute left-0 z-50
            ${position === 'top' ? 'bottom-full mb-2' : 'top-full mt-2'}
            animate-in fade-in-0 zoom-in-95 duration-150
          `}
          style={{ maxWidth: 'calc(100vw - 24px)' }}
          onMouseEnter={handleMouseEnter}
          onMouseLeave={handleMouseLeave}
        >
          <div className="w-52 bg-bambu-dark-secondary border border-bambu-dark-tertiary rounded-lg shadow-xl overflow-hidden backdrop-blur-sm p-2.5 space-y-2">
            {/* AMS auto-label */}
            <div className="text-[length:var(--pc-t10,10px)] uppercase tracking-wider text-bambu-gray font-medium">{label}</div>

            {/* Serial number */}
            <div className="flex items-center justify-between gap-2">
              <span className="text-[length:var(--pc-t10,10px)] tracking-wide text-bambu-gray font-medium shrink-0">
                {t('printers.amsPopup.serialNumber')}
              </span>
              <span className="text-[length:var(--pc-t10,10px)] text-white font-mono truncate">{ams.serial_number || '—'}</span>
            </div>

            {/* Firmware version */}
            <div className="flex items-center justify-between gap-2">
              <span className="text-[length:var(--pc-t10,10px)] tracking-wide text-bambu-gray font-medium shrink-0">
                {t('printers.amsPopup.firmwareVersion')}
              </span>
              <span className="text-[length:var(--pc-t10,10px)] text-white font-mono truncate">{ams.sw_ver || '—'}</span>
            </div>

            {/* Friendly name editor */}
            <div className="space-y-1">
              <div className="flex items-center gap-2">
                <span className="text-[length:var(--pc-t10,10px)] text-bambu-gray font-medium shrink-0">
                  {t('printers.amsPopup.friendlyName')}
                </span>
                <div className="flex-1 h-[2px] bg-bambu-dark-tertiary/50" />
              </div>
              <input
                type="text"
                value={editValue}
                onChange={(e) => canEdit && setEditValue(e.target.value)}
                onKeyDown={(e) => e.key === 'Enter' && handleSave()}
                onFocus={() => setIsInputFocused(true)}
                onBlur={() => {
                  setIsInputFocused(false);
                  if (timeoutRef.current) clearTimeout(timeoutRef.current);
                    timeoutRef.current = setTimeout(() => setIsVisible(false), 200);
                }}
                placeholder={canEdit ? t('printers.amsPopup.friendlyNamePlaceholder') : (amsLabels?.[ams.id] || '—')}
                disabled={!canEdit}
                title={!canEdit ? t('printers.amsPopup.noEditPermission') : undefined}
                className="w-full bg-bambu-dark border border-bambu-dark-tertiary rounded px-2 py-1 text-xs text-white placeholder-bambu-gray/60 focus:outline-none focus:border-bambu-green disabled:opacity-50 disabled:cursor-not-allowed"
                maxLength={100}
              />
              {canEdit && (
                <div className="space-y-1">
                  {saveError && (
                    <p className="text-[length:var(--pc-t10,10px)] text-red-700 dark:text-red-400 break-words">{saveError}</p>
                  )}
                  <div className="flex gap-1 justify-end">
                    <button
                      onClick={handleSave}
                      disabled={isSaving}
                      className="px-2 py-0.5 text-[length:var(--pc-t10,10px)] bg-bambu-green text-white rounded hover:bg-bambu-green/80 disabled:opacity-50"
                    >
                      {t('printers.amsPopup.save')}
                    </button>
                    {amsLabels?.[ams.id] && (
                      <button
                        onClick={handleClear}
                        disabled={isSaving}
                        className="px-2 py-0.5 text-[length:var(--pc-t10,10px)] bg-bambu-dark-tertiary text-bambu-gray rounded hover:bg-bambu-dark-tertiary/70 disabled:opacity-50"
                      >
                        {t('printers.amsPopup.clear')}
                      </button>
                    )}
                  </div>
                </div>
              )}
            </div>
          </div>
        </div>
      )}
    </div>
  );
}


// AMS drying presets from BambuStudio filament profiles (idle mode temps)
// Format: { n3f temp, n3s temp, n3f hours, n3s hours }
const DRYING_PRESETS: Record<string, DryingPreset> = {
  'PLA':   { n3f: 45, n3s: 45, n3f_hours: 12, n3s_hours: 12 },
  'PETG':  { n3f: 65, n3s: 65, n3f_hours: 12, n3s_hours: 12 },
  'TPU':   { n3f: 65, n3s: 75, n3f_hours: 12, n3s_hours: 18 },
  'ABS':   { n3f: 65, n3s: 80, n3f_hours: 12, n3s_hours: 8 },
  'ASA':   { n3f: 65, n3s: 80, n3f_hours: 12, n3s_hours: 8 },
  'PA':    { n3f: 65, n3s: 85, n3f_hours: 12, n3s_hours: 12 },
  'PC':    { n3f: 65, n3s: 80, n3f_hours: 12, n3s_hours: 8 },
  'PVA':   { n3f: 65, n3s: 85, n3f_hours: 12, n3s_hours: 18 },
};

// How much the printer card's body type and icons grow at each card size
// (#1848). S is the dense fleet view and M is the default, so both stay at
// 1.0 and an existing install looks identical until the user picks L or XL --
// the same control the request asked to have this follow.
const CARD_BODY_SCALE: Record<number, number> = { 1: 1, 2: 1, 3: 1.2, 4: 1.4 };

// The scaled sizes, handed to the card subtree as custom properties. Every
// converted class names its old fixed value as the fallback, so anything that
// renders outside a card root -- the portalled temperature popover -- keeps
// exactly the size it has today.
function buildCardScaleStyle(cardSize: number): React.CSSProperties {
  const scale = CARD_BODY_SCALE[cardSize] ?? 1;
  // Rounded to a tenth so the values stay readable in devtools.
  const px = (base: number) => `${Math.round(base * scale * 10) / 10}px`;
  return {
    '--pc-t8': px(8),
    '--pc-t9': px(9),
    '--pc-t10': px(10),
    '--pc-t11': px(11),
    '--pc-i2': px(8),
    '--pc-i25': px(10),
    '--pc-i3': px(12),
    '--pc-i35': px(14),
    '--pc-i4': px(16),
    '--pc-i5': px(20),
    '--pc-i7': px(28),
  } as React.CSSProperties;
}

function ScheduledDryingBanner({ printerId, dryingActive, timeFormat }: { printerId: number; dryingActive: boolean; timeFormat: 'system' | '12h' | '24h' }) {
  const { t } = useTranslation();
  const queryClient = useQueryClient();
  const { showToast } = useToast();
  // One fleet-wide query shared by every card, not one per card: the list is
  // nearly always empty and a 20-printer fleet would otherwise make 20
  // requests every 30s. React Query dedupes on the key.
  const { data: scheduled = [] } = useQuery({
    queryKey: SCHEDULED_DRYINGS_KEY,
    queryFn: () => api.listScheduledDryings(),
    refetchInterval: 30_000,
  });
  // The live AMS status reports a starting cycle well before the next poll;
  // refetch so a just-dispatched schedule doesn't linger as pending.
  useEffect(() => {
    if (dryingActive) {
      queryClient.invalidateQueries({ queryKey: SCHEDULED_DRYINGS_KEY });
    }
  }, [dryingActive, queryClient]);
  const cancelMutation = useMutation({
    mutationFn: (id: number) => api.cancelScheduledDrying(id),
    onSuccess: () => queryClient.invalidateQueries({ queryKey: SCHEDULED_DRYINGS_KEY }),
    onError: (error: Error) => showToast(error.message || t('printers.drying.scheduleFailed'), 'error'),
  });
  // Failed rows are shown too: dispatch is the only place a run can fail (too
  // old firmware on a printer that was offline at schedule time), and without
  // this the run just vanishes with only the backend log saying why.
  const rows = scheduled.filter(s => s.printer_id === printerId && (s.status === 'pending' || s.status === 'failed'));
  if (rows.length === 0) return null;
  return (
    <div className="mt-2 space-y-1">
      {rows.map(s => {
        const failed = s.status === 'failed';
        const reasonKey = waitingReasonKey(s.waiting_reason);
        return (
          <div
            key={s.id}
            data-testid={failed ? 'scheduled-drying-failed' : 'scheduled-drying-pending'}
            className={`flex items-center justify-between px-2 py-1 rounded-lg text-[length:var(--pc-t11,11px)] ${
              failed ? 'bg-red-500/10 border border-red-500/30' : 'bg-amber-500/10 border border-amber-500/30'
            }`}
          >
            <span className={failed ? 'text-red-700 dark:text-red-400' : 'text-amber-700 dark:text-amber-400'}>
              {failed ? (
                t('printers.drying.scheduleFailedReason', {
                  reason: s.error_message || t('printers.drying.scheduleFailedUnknown'),
                })
              ) : (
                <>
                  {s.start_after
                    ? t('printers.drying.scheduledFor', { time: formatDateTime(s.start_after, timeFormat) })
                    : t('printers.drying.scheduledAsap')}
                  {reasonKey && <span className="ml-1 opacity-80">{t(reasonKey)}</span>}
                </>
              )}
            </span>
            <button
              onClick={() => cancelMutation.mutate(s.id)}
              disabled={cancelMutation.isPending}
              title={failed ? t('printers.drying.dismissFailed') : t('printers.drying.cancelScheduled')}
              className="text-bambu-gray hover:text-red-400 transition-colors disabled:opacity-50 disabled:cursor-not-allowed"
            >
              <X className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)]" />
            </button>
          </div>
        );
      })}
    </div>
  );
}

function PrinterCard({
  printer,
  hideIfDisconnected,
  maintenanceInfo,
  viewMode = 'expanded',
  cardSize = 2,
  amsThresholds,
  spoolmanEnabled = false,
  linkedSpools,
  spoolmanUrl,
  spoolmanSyncMode,
  onGetAssignment,
  onUnassignSpool,
  spoolmanSpools,
  spoolmanSlotAssignments,
  spoolmanLoading = false,
  onUnassignSpoolmanSpool,
  timeFormat = 'system',
  cameraViewMode = 'window',
  onOpenEmbeddedCamera,
  checkPrinterFirmware = true,
  dryingPresets = DRYING_PRESETS,
  requirePlateClear = false,
  selectionMode = false,
  isSelected = false,
  onToggleSelect,
  onOpenCompactCard,
  nozzleTempPresets = NOZZLE_TEMP_DEFAULTS,
  bedTempPresets = BED_TEMP_DEFAULTS,
  chamberTempPresets = CHAMBER_TEMP_DEFAULTS,
  fanSpeedPresets = FAN_SPEED_DEFAULTS,
  aiDetectionEnabled = false,
  aiDetection,
  aiLastError = null,
}: {
  printer: Printer;
  hideIfDisconnected?: boolean;
  maintenanceInfo?: PrinterMaintenanceInfo;
  viewMode?: ViewMode;
  cardSize?: number;
  amsThresholds?: {
    humidityGood: number;
    humidityFair: number;
    tempGood: number;
    tempFair: number;
  };
  spoolmanEnabled?: boolean;
  hasUnlinkedSpools?: boolean;
  linkedSpools?: Record<string, LinkedSpoolInfo>;
  spoolmanUrl?: string | null;
  spoolmanSyncMode?: string | null;
  spoolAssignments?: SpoolAssignment[];
  onGetAssignment?: (printerId: number, amsId: number, trayId: number) => SpoolAssignment | undefined;
  onUnassignSpool?: (printerId: number, amsId: number, trayId: number) => void;
  spoolmanSpools?: InventorySpool[];
  spoolmanSlotAssignments?: SpoolmanSlotAssignmentRow[];
  spoolmanLoading?: boolean;
  onUnassignSpoolmanSpool?: (spoolmanSpoolId: number) => void;
  timeFormat?: 'system' | '12h' | '24h';
  cameraViewMode?: 'window' | 'embedded';
  onOpenEmbeddedCamera?: (printerId: number, printerName: string) => void;
  checkPrinterFirmware?: boolean;
  dryingPresets?: Record<string, DryingPreset>;
  requirePlateClear?: boolean;
  selectionMode?: boolean;
  isSelected?: boolean;
  onToggleSelect?: (id: number) => void;
  onOpenCompactCard?: (id: number) => void;
  nozzleTempPresets?: readonly [number, number, number];
  bedTempPresets?: readonly [number, number, number];
  chamberTempPresets?: readonly [number, number, number];
  fanSpeedPresets?: readonly [number, number, number];
  aiDetectionEnabled?: boolean;
  aiDetection?: { class: string; frame_count: number; score: number };
  aiLastError?: string | null;
}) {
  const { t } = useTranslation();
  const queryClient = useQueryClient();
  const navigate = useNavigate();
  const { showToast } = useToast();
  const { hasPermission } = useAuth();
  const [showMenu, setShowMenu] = useState(false);
  const [showDeleteConfirm, setShowDeleteConfirm] = useState(false);
  const [deleteArchives, setDeleteArchives] = useState(true);
  const [showEditModal, setShowEditModal] = useState(false);
  const [showFileManager, setShowFileManager] = useState(false);
  const [showMQTTDebug, setShowMQTTDebug] = useState(false);
  const [showPowerOnConfirm, setShowPowerOnConfirm] = useState(false);
  const [showPowerOffConfirm, setShowPowerOffConfirm] = useState(false);
  const [haToggleConfirm, setHaToggleConfirm] = useState<SmartPlug | null>(null);
  const [showHMSModal, setShowHMSModal] = useState(false);
  // #1546: AI failure detection modal — opens from the AI badge.
  const [showAiModal, setShowAiModal] = useState(false);
  // #1762: AMS Filament Backup status / control modal — opens from the badge.
  const [amsBackupModalOpen, setAmsBackupModalOpen] = useState(false);
  // External spool visibility (#1782) — browser-local, per printer. Read once
  // per card; the toggle that writes it is the only thing that changes it.
  const [externalSpoolHidden, setExternalSpoolHidden] = useState(() =>
    isExternalSpoolHidden(printer.id),
  );
  const toggleExternalSpool = useCallback(() => {
    setExternalSpoolHidden((prev) => {
      const next = !prev;
      persistExternalSpoolHidden(printer.id, next);
      return next;
    });
  }, [printer.id]);
  const [showStopConfirm, setShowStopConfirm] = useState(false);
  const [showPauseConfirm, setShowPauseConfirm] = useState(false);
  const [showSpeedMenu, setShowSpeedMenu] = useState<number | null>(null);
  const [showAirductMenu, setShowAirductMenu] = useState<number | null>(null);
  const [showBedJogMenu, setShowBedJogMenu] = useState<number | null>(null);
  const [statusControlMenu, setStatusControlMenu] = useState<string | null>(null);
  const [bedJogStep, setBedJogStep] = useState<number>(10);
  const [showResumeConfirm, setShowResumeConfirm] = useState(false);
  const [showSkipObjectsModal, setShowSkipObjectsModal] = useState(false);
  const [showUploadForPrint, setShowUploadForPrint] = useState(false);
  const [showPrinterInfo, setShowPrinterInfo] = useState(false);
  const [showDiagnostic, setShowDiagnostic] = useState(false);
  const closePrinterInfo = useCallback(() => setShowPrinterInfo(false), []);
  const [printAfterUpload, setPrintAfterUpload] = useState<{ id: number; filename: string } | null>(null);
  // AMS drying popover state: which AMS unit has the popover open
  const [dryingPopoverAmsId, setDryingPopoverAmsId] = useState<number | null>(null);
  const [dryingPopoverModuleType, setDryingPopoverModuleType] = useState<string>('n3f');
  const [dryingFilament, setDryingFilament] = useState('PLA');
  const [dryingTemp, setDryingTemp] = useState(50);
  const [dryingDuration, setDryingDuration] = useState(4);
  const [dryingRotateTray, setDryingRotateTray] = useState(false);
  // Drying start mode (#2638): 'now' starts immediately; 'delay' and 'at_time'
  // go through scheduleDryingMutation.
  const [dryingStartMode, setDryingStartMode] = useState<DryingStartMode>('now');
  const [dryingDelayMinutes, setDryingDelayMinutes] = useState(120);
  const [dryingStartAt, setDryingStartAt] = useState('');
  const [dryingPopoverPos, setDryingPopoverPos] = useState<PopoverPosition | null>(null);
  const [dryingPopoverAnchor, setDryingPopoverAnchor] = useState<HTMLElement | null>(null);
  // Reset every field the popover owns, including the start mode. Leaving the
  // mode alone let an "At time" timestamp from an earlier schedule persist into
  // the next open, by then in the past, and the POST rejected it.
  const openDryingPopover = useCallback((ams: AMSUnit, trigger: HTMLElement) => {
    const firstTray = ams.tray.find(t => t.tray_type);
    const filType = resolveDryingPresetKey(firstTray?.tray_type, dryingPresets);
    // Only reachable if a custom preset set dropped PLA itself.
    const preset = dryingPresets[filType] ?? DRYING_PRESETS['PLA'];
    const moduleType = ams.module_type as 'n3f' | 'n3s';
    setDryingFilament(filType);
    setDryingTemp(preset[moduleType] || preset.n3f);
    setDryingDuration(moduleType === 'n3s' ? preset.n3s_hours : preset.n3f_hours);
    setDryingRotateTray(false);
    setDryingStartMode('now');
    setDryingDelayMinutes(120);
    setDryingStartAt('');
    setDryingPopoverModuleType(ams.module_type);
    setDryingPopoverAmsId(ams.id);
    setDryingPopoverAnchor(trigger);
  }, [dryingPresets]);
  // Re-measure on resize/scroll so the popover and its arrow track the
  // flame button, like IndicatorControlPopover.
  useLayoutEffect(() => {
    if (dryingPopoverAmsId === null || !dryingPopoverAnchor) return;
    const measure = () => {
      setDryingPopoverPos(computePopoverPosition({
        triggerRect: dryingPopoverAnchor.getBoundingClientRect(),
        popoverWidth: DRYING_POPOVER_WIDTH,
        estimatedHeight: DRYING_POPOVER_ESTIMATED_HEIGHT,
        horizontalAlign: 'center',
      }));
    };
    measure();
    window.addEventListener('resize', measure);
    window.addEventListener('scroll', measure, true);
    return () => {
      window.removeEventListener('resize', measure);
      window.removeEventListener('scroll', measure, true);
    };
  }, [dryingPopoverAmsId, dryingPopoverAnchor]);
  const dryingAtTimeInputRef = useRef<HTMLInputElement | null>(null);
  // Whether the click hitting the backdrop is the one that dismissed the
  // native datetime picker (see the backdrop's onMouseDown).
  const dryingBackdropSkipCloseRef = useRef(false);
  // Which AMS we are waiting on to actually enter a drying cycle (#2533). Held as
  // an object rather than a bare id so restarting drying on the SAME unit produces
  // a new identity and rearms the timeout below.
  const [dryStartWatch, setDryStartWatch] = useState<{ amsId: number } | null>(null);
  const [isDraggingFile, setIsDraggingFile] = useState(false);
  const [isDropUploading, setIsDropUploading] = useState(false);
  const printerActionsMenuRef = useRef<HTMLDivElement>(null);
  const dragCounterRef = useRef(0);
  const [amsHistoryModal, setAmsHistoryModal] = useState<{
    amsId: number;
    amsLabel: string;
    mode: 'humidity' | 'temperature';
  } | null>(null);
  const [heaterHistoryModal, setHeaterHistoryModal] = useState<{
    initialKind: HeaterSensorKind;
    availableKinds: HeaterSensorKind[];
  } | null>(null);
  const [linkSpoolModal, setLinkSpoolModal] = useState<{
    tagUid: string;
    trayUuid: string;
    printerId: number;
    amsId: number;
    trayId: number;
  } | null>(null);
  const [assignSpoolModal, setAssignSpoolModal] = useState<{
    printerId: number;
    amsId: number;
    trayId: number;
    trayInfo: { type: string; color: string; location: string; material?: string; profile?: string };
  } | null>(null);
  const [configureSlotModal, setConfigureSlotModal] = useState<{
    amsId: number;
    trayId: number;
    trayCount: number;
    trayType?: string;
    trayColor?: string;
    traySubBrands?: string;
    trayInfoIdx?: string;
    extruderId?: number;
    caliIdx?: number | null;
    savedPresetId?: string;
  } | null>(null);
  const [showFirmwareModal, setShowFirmwareModal] = useState(false);
  const [plateCheckResult, setPlateCheckResult] = useState<{
    is_empty: boolean;
    confidence: number;
    difference_percent: number;
    message: string;
    debug_image_url?: string;
    needs_calibration: boolean;
    light_warning?: boolean;
    reference_count?: number;
    max_references?: number;
    roi?: { x: number; y: number; w: number; h: number };
  } | null>(null);
  const [isCheckingPlate, setIsCheckingPlate] = useState(false);
  const [isCalibrating, setIsCalibrating] = useState(false);
  const [editingRoi, setEditingRoi] = useState<{ x: number; y: number; w: number; h: number } | null>(null);
  const [isSavingRoi, setIsSavingRoi] = useState(false);
  const [plateCheckLightWasOff, setPlateCheckLightWasOff] = useState(false);

  const { data: status } = useQuery({
    queryKey: ['printerStatus', printer.id],
    queryFn: () => api.getPrinterStatus(printer.id),
    refetchInterval: 30000, // Fallback polling, WebSocket handles real-time
  });

  // Check for firmware updates (cached for 5 minutes, can be disabled in settings)
  const { data: firmwareInfo } = useQuery({
    queryKey: ['firmwareUpdate', printer.id],
    queryFn: () => firmwareApi.checkPrinterUpdate(printer.id),
    staleTime: 5 * 60 * 1000,
    refetchInterval: 5 * 60 * 1000,
    enabled: checkPrinterFirmware && hasPermission('firmware:read'),
  });

  // Collect unique tray_info_idx values for cloud filament info lookup
  const trayInfoIds = useMemo(() => {
    const ids = new Set<string>();
    if (status?.ams) {
      for (const ams of status.ams) {
        for (const tray of ams.tray || []) {
          if (tray.tray_info_idx) {
            ids.add(tray.tray_info_idx);
          }
        }
      }
    }
    for (const vt of status?.vt_tray ?? []) {
      if (vt.tray_info_idx) ids.add(vt.tray_info_idx);
    }
    if (status?.nozzle_rack) {
      for (const slot of status.nozzle_rack) {
        if (slot.filament_id) {
          ids.add(slot.filament_id);
        }
      }
    }
    return Array.from(ids);
  }, [status?.ams, status?.vt_tray, status?.nozzle_rack]);

  // Collect loaded filament types for queue widget filtering
  const loadedFilamentTypes = useMemo(() => {
    const types = new Set<string>();
    if (status?.ams) {
      for (const ams of status.ams) {
        for (const tray of ams.tray || []) {
          if (tray.tray_type) types.add(tray.tray_type.toUpperCase());
        }
      }
    }
    for (const vt of status?.vt_tray ?? []) {
      if (vt.tray_type) types.add(vt.tray_type.toUpperCase());
    }
    return types;
  }, [status?.ams, status?.vt_tray]);

  // Collect loaded filament type+color pairs for queue widget override matching
  // Format: "TYPE:rrggbb" (e.g., "PETG:ffffff") — mirrors backend _count_override_color_matches()
  const loadedFilaments = useMemo(() => {
    const filaments = new Set<string>();
    if (status?.ams) {
      for (const ams of status.ams) {
        for (const tray of ams.tray || []) {
          if (tray.tray_type && tray.tray_color) {
            const color = tray.tray_color.replace('#', '').toLowerCase().slice(0, 6);
            filaments.add(`${tray.tray_type.toUpperCase()}:${color}`);
          }
        }
      }
    }
    for (const vt of status?.vt_tray ?? []) {
      if (vt.tray_type && vt.tray_color) {
        const color = vt.tray_color.replace('#', '').toLowerCase().slice(0, 6);
        filaments.add(`${vt.tray_type.toUpperCase()}:${color}`);
      }
    }
    return filaments;
  }, [status?.ams, status?.vt_tray]);

  // Collect loaded type+color+tray_info_idx triples for variant-aware force-color
  // matching. Format: "TYPE:rrggbb:idx" (idx "" for custom/third-party spools) —
  // distinguishes Bambu PLA sub-variants that share a base type+colour (#2650).
  const loadedVariants = useMemo(() => {
    const variants = new Set<string>();
    if (status?.ams) {
      for (const ams of status.ams) {
        for (const tray of ams.tray || []) {
          if (tray.tray_type && tray.tray_color) {
            const color = tray.tray_color.replace('#', '').toLowerCase().slice(0, 6);
            variants.add(`${tray.tray_type.toUpperCase()}:${color}:${tray.tray_info_idx || ''}`);
          }
        }
      }
    }
    for (const vt of status?.vt_tray ?? []) {
      if (vt.tray_type && vt.tray_color) {
        const color = vt.tray_color.replace('#', '').toLowerCase().slice(0, 6);
        variants.add(`${vt.tray_type.toUpperCase()}:${color}:${vt.tray_info_idx || ''}`);
      }
    }
    return variants;
  }, [status?.ams, status?.vt_tray]);

  // Fetch cloud filament info for tooltips (name includes color, also has K value)
  const { data: filamentInfo } = useQuery({
    queryKey: ['filamentInfo', trayInfoIds],
    queryFn: () => api.getFilamentInfo(trayInfoIds),
    enabled: trayInfoIds.length > 0,
    staleTime: 5 * 60 * 1000, // 5 minutes
  });

  // Fetch slot preset mappings (stores preset name for user-configured slots)
  const { data: slotPresets } = useQuery({
    queryKey: ['slotPresets', printer.id],
    queryFn: () => api.getSlotPresets(printer.id),
    staleTime: 2 * 60 * 1000, // 2 minutes
  });

  // Fetch plate list for the archive linked to the active print (#881 follow-up).
  // Only queried when there's a running print backed by an archive; shared
  // React Query cache with the Queue / Archives pages keeps it cheap.
  const activeArchiveId =
    (status?.state === 'RUNNING' || status?.state === 'PAUSE') ? status?.current_archive_id ?? null : null;
  const { data: activeArchivePlates } = useQuery({
    queryKey: ['archive-plates', activeArchiveId],
    queryFn: () => api.getArchivePlates(activeArchiveId!),
    enabled: activeArchiveId != null,
    staleTime: 5 * 60 * 1000,
  });
  const activePlateLabel = (() => {
    if (!activeArchivePlates?.is_multi_plate || status?.current_plate_id == null) return null;
    const plate = activeArchivePlates.plates.find(p => p.index === status.current_plate_id);
    return plate?.name || t('printers.plateNumber', 'Plate {{number}}', { number: status.current_plate_id });
  })();

  // Fetch user-defined AMS friendly names from the database
  const { data: amsLabels, refetch: refetchAmsLabels } = useQuery({
    queryKey: ['amsLabels', printer.id],
    queryFn: () => api.getAmsLabels(printer.id),
    staleTime: 5 * 60 * 1000, // 5 minutes
  });

  // Cache WiFi signal to prevent it disappearing on updates
  const [cachedWifiSignal, setCachedWifiSignal] = useState<number | null>(null);
  useEffect(() => {
    if (status?.wifi_signal != null) {
      setCachedWifiSignal(status.wifi_signal);
    }
  }, [status?.wifi_signal]);
  const wifiSignal = status?.wifi_signal ?? cachedWifiSignal;

  // Cache connected state to prevent flicker when status briefly becomes undefined
  const cachedConnected = useRef<boolean | undefined>(undefined);
  useEffect(() => {
    if (status?.connected !== undefined) {
      cachedConnected.current = status.connected;
    }
  }, [status?.connected]);
  const isConnected = status?.connected ?? cachedConnected.current;

  // Cache ams_extruder_map to prevent L/R indicators bouncing on updates
  const cachedAmsExtruderMap = useRef<Record<string, number>>({});
  useEffect(() => {
    if (status?.ams_extruder_map && Object.keys(status.ams_extruder_map).length > 0) {
      cachedAmsExtruderMap.current = status.ams_extruder_map;
    }
  }, [status?.ams_extruder_map]);
  const amsExtruderMap = (status?.ams_extruder_map && Object.keys(status.ams_extruder_map).length > 0)
    ? status.ams_extruder_map
    : cachedAmsExtruderMap.current;

  // Cache AMS data to prevent it disappearing on idle/offline printers
  const cachedAmsData = useRef<AMSUnit[]>([]);
  useEffect(() => {
    if (status?.ams && status.ams.length > 0) {
      cachedAmsData.current = status.ams;
    }
  }, [status?.ams]);
  const amsData = (status?.ams && status.ams.length > 0) ? status.ams : cachedAmsData.current;

  // Confirm a drying cycle actually started (#2533). Firmware answers
  // ams_filament_drying with result=success even when it then silently declines,
  // and P1-family firmware never publishes dry_sf_reason — so the server-side
  // reason guard is blind there and the card just sits unchanged. Watch the unit
  // after the ack: leaving DryStatus 0 means the cycle is live, staying there
  // means the printer took the command and dropped it.
  useEffect(() => {
    if (!dryStartWatch) return;
    const unit = amsData.find(a => a.id === dryStartWatch.amsId);
    if (unit && (unit.dry_time > 0 || unit.dry_status > 0)) setDryStartWatch(null);
  }, [dryStartWatch, amsData]);

  // Deps deliberately exclude amsData: status pushes arrive continuously and would
  // otherwise rearm the timeout on every frame, so it would never elapse.
  useEffect(() => {
    if (!dryStartWatch) return;
    const timer = setTimeout(() => {
      setDryStartWatch(null);
      showToast(t('printers.drying.toastNotStarted'), 'error');
    }, DRY_START_CONFIRM_MS);
    return () => clearTimeout(timer);
  }, [dryStartWatch, showToast, t]);

  // Cache tray_now to prevent flickering when undefined values come in
  // Valid tray IDs: 0-253 for AMS, 254 for external spool
  // tray_now=255 means "no tray loaded" (Bambu protocol sentinel) — never active
  const cachedTrayNow = useRef<number | undefined>(undefined);
  const currentTrayNow = status?.tray_now;
  // Update cache: 255 means "no tray" so clear cache; valid values get cached
  if (currentTrayNow !== undefined && currentTrayNow !== 255) {
    cachedTrayNow.current = currentTrayNow;
  } else if (currentTrayNow === 255) {
    cachedTrayNow.current = undefined;
  }
  const effectiveTrayNow = (currentTrayNow !== undefined && currentTrayNow !== 255)
    ? currentTrayNow
    : cachedTrayNow.current;

  // Runout / filament-replacement guidance (#2587). The backend fills these only
  // while the print is PAUSED (global tray IDs, or null when idle/unresolvable):
  //   expectedTray = the slot the firmware now expects filament in
  //   previousTray = the slot that ran out
  // With AMS Filament Backup the firmware advances to the next compatible slot,
  // so these are often different — the graphic highlights the expected one.
  const expectedTray = status?.expected_tray ?? null;
  const previousTray = status?.previous_tray ?? null;
  // Pre-format the runout slot labels (honoring user AMS friendly names) for the
  // HMS modal (#2587). null when the slot can't be placed → honest fallback copy.
  const formatRunoutSlotLabel = (globalId: number | null): string | null => {
    if (globalId === null) return null;
    if (globalId === 254) return t('printers.expectedSlot.external');
    if (globalId >= 128 && globalId <= 135) {
      return amsLabels?.[globalId] || getAmsLabel(globalId, 1);
    }
    const amsId = Math.floor(globalId / 4);
    const slot = globalId % 4;
    const amsName = amsLabels?.[amsId] || getAmsLabel(amsId, 4);
    return t('printers.expectedSlot.label', { ams: amsName, slot: slot + 1 });
  };
  const runoutGuidance = status?.state === 'PAUSE'
    ? {
        expectedSlotLabel: formatRunoutSlotLabel(expectedTray),
        ranOutSlotLabel: formatRunoutSlotLabel(previousTray),
      }
    : null;

  // Fetch smart plug for this printer
  const { data: smartPlug } = useQuery({
    queryKey: ['smartPlugByPrinter', printer.id],
    queryFn: () => api.getSmartPlugByPrinter(printer.id),
  });

  // Fetch script plugs for this printer (for multi-device control)
  const { data: scriptPlugs } = useQuery({
    queryKey: ['scriptPlugsByPrinter', printer.id],
    queryFn: () => api.getScriptPlugsByPrinter(printer.id),
  });

  // Fetch smart plug status if plug exists (faster refresh for energy monitoring)
  const { data: plugStatus } = useQuery({
    queryKey: ['smartPlugStatus', smartPlug?.id],
    queryFn: () => smartPlug ? api.getSmartPlugStatus(smartPlug.id) : null,
    enabled: !!smartPlug,
    refetchInterval: 10000, // 10 seconds for real-time power display
  });

  // Fetch queue count for this printer
  const { data: queueItems } = useQuery({
    queryKey: ['queue', printer.id, 'pending'],
    queryFn: () => api.getQueue(printer.id, 'pending'),
  });
  // Filter queue items by filament compatibility (same logic as PrinterQueueWidget)
  // so the badge only shows on printers that can actually run the queued jobs.
  // An empty Set means no filaments are loaded — jobs requiring specific types are incompatible.
  const queueCount = useMemo(() => {
    if (!queueItems?.length) return 0;
    return filterCompatibleQueueItems(queueItems, loadedFilamentTypes, loadedFilaments, loadedVariants).length;
  }, [queueItems, loadedFilamentTypes, loadedFilaments, loadedVariants]);

  // Fetch currently printing queue item to show who started it (Issue #206)
  const { data: printingQueueItems } = useQuery({
    queryKey: ['queue', printer.id, 'printing'],
    queryFn: () => api.getQueue(printer.id, 'printing'),
    enabled: status?.state === 'RUNNING',
  });

  // Fetch reprint user info (for prints started via Reprint, not queue - Issue #206)
  const { data: reprintUser } = useQuery({
    queryKey: ['currentPrintUser', printer.id],
    queryFn: () => api.getCurrentPrintUser(printer.id),
    enabled: status?.state === 'RUNNING',
  });

  // Combine both sources: queue item user takes precedence, then reprint user
  const currentPrintUser = printingQueueItems?.[0]?.created_by_username || reprintUser?.username;

  // Fetch last completed print for this printer
  const { data: lastPrints } = useQuery({
    queryKey: ['archives', printer.id, 'last'],
    queryFn: () => api.getArchives(printer.id, 1, 0),
    enabled: status?.connected && status?.state !== 'RUNNING',
  });
  const lastPrint = lastPrints?.[0];
  const isPrintingOrPaused = status?.state === 'RUNNING' || status?.state === 'PAUSE';
  const needsPlateClear = requirePlateClear && status?.awaiting_plate_clear === true;
  const showClearPlateButton = status?.connected && needsPlateClear && !isPrintingOrPaused;
  const activePrintName = status?.current_print && isPrintingOrPaused
    ? formatPrintName(status.subtask_name || status.current_print || null, status.gcode_file, t, activePlateLabel)
    : null;
  const [retainedPrintJob, setRetainedPrintJob] = useState<{ name: string; coverUrl: string | null } | null>(null);
  useEffect(() => {
    if (activePrintName) {
      setRetainedPrintJob({ name: activePrintName, coverUrl: status?.cover_url ?? null });
    } else if (!needsPlateClear) {
      setRetainedPrintJob(null);
    }
  }, [activePrintName, needsPlateClear, status?.cover_url]);
  const plateStatus = (() => {
    if (!requirePlateClear || !status?.connected) return null;
    if (isPrintingOrPaused) {
      return {
        label: t('printers.plateStatus.inUse'),
        className: 'bg-blue-100 dark:bg-blue-500/20 text-blue-700 dark:text-blue-400',
      };
    }
    if (status.awaiting_plate_clear) {
      return {
        label: t('printers.plateStatus.notCleared'),
        className: 'bg-yellow-100 dark:bg-yellow-500/20 text-yellow-700 dark:text-yellow-400',
      };
    }
    return {
      label: t('printers.plateStatus.cleared'),
      className: 'bg-status-ok/20 text-status-ok',
    };
  })();
  const plateStatusPill = plateStatus ? (
    <span className={`inline-flex flex-shrink-0 items-center rounded-full px-2 py-0.5 text-[length:var(--pc-t10,10px)] font-medium ${plateStatus.className}`}>
      {plateStatus.label}
    </span>
  ) : null;

  // Determine if this card should be hidden (use cached connected state to prevent flicker)
  const shouldHide = hideIfDisconnected && isConnected === false;

  const deleteMutation = useMutation({
    mutationFn: (options: { deleteArchives: boolean }) =>
      api.deletePrinter(printer.id, options.deleteArchives),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: ['printers'] });
      queryClient.invalidateQueries({ queryKey: ['archives'] });
      queryClient.invalidateQueries({ queryKey: ['maintenanceOverview'] });
    },
    onError: (error: Error) => showToast(error.message || t('printers.toast.failedToDelete'), 'error'),
  });

  const connectMutation = useMutation({
    mutationFn: () => api.connectPrinter(printer.id),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: ['printerStatus', printer.id] });
    },
  });

  const forceRefreshMutation = useMutation({
    mutationFn: () => api.refreshPrinterStatus(printer.id),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: ['printerStatus', printer.id] });
      showToast(t('printers.forceRefreshSuccess'), 'success');
    },
    onError: (error: Error) => showToast(error.message || t('printers.toast.failedToSendCommand'), 'error'),
  });

  const unlinkSpoolMutation = useMutation({
    mutationFn: (spoolId: number) => api.unlinkSpool(spoolId),
    onSuccess: (result) => {
      showToast(t('spoolman.unlinkSuccess') || result?.message, 'success');
      queryClient.invalidateQueries({ queryKey: ['linked-spools'] });
      queryClient.invalidateQueries({ queryKey: ['unlinked-spools'] });
      queryClient.invalidateQueries({ queryKey: ['spoolman-slot-assignments'] });
    },
    onError: (error: Error) => {
      showToast(error.message || t('spoolman.unlinkFailed'), 'error');
    },
  });

  // AMS drying mutations
  const startDryingMutation = useMutation({
    mutationFn: ({ amsId, temp, duration, filament, rotateTray }: { amsId: number; temp: number; duration: number; filament: string; rotateTray: boolean }) =>
      api.startDrying(printer.id, amsId, temp, duration, filament, rotateTray),
    onSuccess: (_data, { amsId }) => {
      setDryingPopoverAmsId(null);
      setDryStartWatch({ amsId });
      // "Command sent", not "drying started" — at this point the printer has only
      // taken the command. The amber countdown badge (dry_time > 0) is what says
      // the cycle is genuinely live; the watcher below covers the case where it
      // never appears.
      showToast(t('printers.drying.toastCommandSent'), 'success');
      queryClient.invalidateQueries({ queryKey: ['printerStatus', printer.id] });
    },
    onError: (error: Error) => showToast(error.message || t('printers.toast.failedToSendCommand'), 'error'),
  });

  // Scheduled (delayed / at-time) drying runs (#2638)
  const scheduleDryingMutation = useMutation({
    mutationFn: (params: { amsId: number; temp: number; duration: number; filament: string; rotateTray: boolean; startAfter: string }) =>
      api.createScheduledDrying({
        printer_id: printer.id,
        ams_id: params.amsId,
        temp: params.temp,
        duration_hours: params.duration,
        filament: params.filament,
        rotate_tray: params.rotateTray,
        start_after: params.startAfter,
      }),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: SCHEDULED_DRYINGS_KEY });
      setDryingPopoverAmsId(null);
    },
    onError: (error: Error) => showToast(error.message || t('printers.drying.scheduleFailed'), 'error'),
  });

  const stopDryingMutation = useMutation({
    mutationFn: (amsId: number) => api.stopDrying(printer.id, amsId),
    onSuccess: () => {
      setDryStartWatch(null);
      showToast(t('printers.drying.toastStopped'), 'success');
      queryClient.invalidateQueries({ queryKey: ['printerStatus', printer.id] });
    },
    onError: (error: Error) => showToast(error.message || t('printers.toast.failedToSendCommand'), 'error'),
  });

  // AMS Filament Backup toggle (auto-switch to a backup spool when one runs out).
  // Invalidate BOTH printer-status cache keys — the codebase has two conventions
  // ('printerStatus' camelCase + 'printer-status' kebab-case used by PrintModal /
  // useMultiPrinterFilamentMapping). Hitting only one would leave PrintModal
  // showing the old backup state until the user reopens it.
  const setAmsBackupMutation = useMutation({
    mutationFn: (enabled: boolean) => api.setAmsFilamentBackup(printer.id, enabled),
    onSuccess: (_data, enabled) => {
      queryClient.invalidateQueries({ queryKey: ['printerStatus', printer.id] });
      queryClient.invalidateQueries({ queryKey: ['printer-status', printer.id] });
      showToast(t(enabled ? 'printers.amsBackup.toastEnabled' : 'printers.amsBackup.toastDisabled'), 'success');
    },
    onError: (error: Error) => showToast(error.message || t('printers.toast.failedToSendCommand'), 'error'),
  });

  // Smart plug control mutations
  const powerControlMutation = useMutation({
    mutationFn: (action: 'on' | 'off') =>
      smartPlug ? api.controlSmartPlug(smartPlug.id, action) : Promise.reject('No plug'),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: ['smartPlugStatus', smartPlug?.id] });
    },
  });

  const toggleAutoOffMutation = useMutation({
    mutationFn: (enabled: boolean) =>
      smartPlug ? api.updateSmartPlug(smartPlug.id, { auto_off: enabled }) : Promise.reject('No plug'),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: ['smartPlugByPrinter', printer.id] });
      // Also invalidate the smart-plugs list to keep Settings page in sync
      queryClient.invalidateQueries({ queryKey: ['smart-plugs'] });
    },
  });

  // Run HA entity mutation — scripts use 'on' (trigger), switches use 'toggle'
  const runScriptMutation = useMutation({
    mutationFn: ({ id, action }: { id: number; action: 'on' | 'toggle' }) => api.controlSmartPlug(id, action),
    onSuccess: () => {
      showToast(t('printers.toast.scriptTriggered'));
    },
    onError: (error: Error) => showToast(error.message || t('printers.toast.failedToRunScript'), 'error'),
  });

  // Print control mutations
  const stopPrintMutation = useMutation({
    mutationFn: () => api.stopPrint(printer.id),
    onSuccess: () => {
      showToast(t('printers.toast.printStopped'));
      queryClient.invalidateQueries({ queryKey: ['printerStatus', printer.id] });
    },
    onError: (error: Error) => showToast(error.message || t('printers.toast.failedToStopPrint'), 'error'),
  });

  const pausePrintMutation = useMutation({
    mutationFn: () => api.pausePrint(printer.id),
    onSuccess: () => {
      showToast(t('printers.toast.printPaused'));
      queryClient.invalidateQueries({ queryKey: ['printerStatus', printer.id] });
    },
    onError: (error: Error) => showToast(error.message || t('printers.toast.failedToPausePrint'), 'error'),
  });

  const resumePrintMutation = useMutation({
    mutationFn: () => api.resumePrint(printer.id),
    onSuccess: () => {
      showToast(t('printers.toast.printResumed'));
      queryClient.invalidateQueries({ queryKey: ['printerStatus', printer.id] });
    },
    onError: (error: Error) => showToast(error.message || t('printers.toast.failedToResumePrint'), 'error'),
  });

  const clearPlateMutation = useMutation({
    mutationFn: () => api.clearPlate(printer.id),
    onSuccess: () => {
      showToast(t('queue.clearPlateSuccess'));
      queryClient.setQueryData(['printerStatus', printer.id], (old: PrinterStatus | undefined) =>
        old ? { ...old, awaiting_plate_clear: false } : old
      );
      queryClient.invalidateQueries({ queryKey: ['printerStatus', printer.id] });
      queryClient.invalidateQueries({ queryKey: ['queue', printer.id] });
    },
    onError: (error: Error) => showToast(error.message || t('printers.toast.failedToSendCommand'), 'error'),
  });

  const nozzleTemperatureMutation = useMutation({
    mutationFn: ({ target, nozzle }: { target: number; nozzle: number }) =>
      api.setNozzleTemperature(printer.id, target, nozzle),
    onSuccess: (result) => {
      setStatusControlMenu(null);
      showToast(result.message);
      queryClient.invalidateQueries({ queryKey: ['printerStatus', printer.id] });
    },
    onError: (error: Error) => showToast(error.message || t('printers.toast.failedToSendCommand'), 'error'),
  });

  const bedTemperatureMutation = useMutation({
    mutationFn: (target: number) => api.setBedTemperature(printer.id, target),
    onSuccess: (result) => {
      setStatusControlMenu(null);
      showToast(result.message);
      queryClient.invalidateQueries({ queryKey: ['printerStatus', printer.id] });
    },
    onError: (error: Error) => showToast(error.message || t('printers.toast.failedToSendCommand'), 'error'),
  });

  const chamberTemperatureMutation = useMutation({
    mutationFn: (target: number) => api.setChamberTemperature(printer.id, target),
    onSuccess: (result) => {
      setStatusControlMenu(null);
      showToast(result.message);
      queryClient.invalidateQueries({ queryKey: ['printerStatus', printer.id] });
    },
    onError: (error: Error) => showToast(error.message || t('printers.toast.failedToSendCommand'), 'error'),
  });

  const fanSpeedMutation = useMutation({
    mutationFn: ({ fan, speed }: { fan: 'part' | 'aux' | 'aux2' | 'chamber'; speed: number }) =>
      api.setFanSpeed(printer.id, fan, speed),
    onMutate: async ({ fan, speed }) => {
      await queryClient.cancelQueries({ queryKey: ['printerStatus', printer.id] });
      const previousStatus = queryClient.getQueryData(['printerStatus', printer.id]);
      const fanField = {
        part: 'cooling_fan_speed',
        aux: 'big_fan1_speed',
        aux2: 'left_aux_fan_speed',
        chamber: 'big_fan2_speed',
      }[fan];
      queryClient.setQueryData(['printerStatus', printer.id], (old: PrinterStatus | undefined) =>
        old ? { ...old, [fanField]: speed } : old
      );
      return { previousStatus };
    },
    onSuccess: (result) => {
      setStatusControlMenu(null);
      showToast(result.message);
      queryClient.invalidateQueries({ queryKey: ['printerStatus', printer.id] });
    },
    onError: (error: Error, _variables, context) => {
      if (context?.previousStatus) {
        queryClient.setQueryData(['printerStatus', printer.id], context.previousStatus);
      }
      showToast(error.message || t('printers.toast.failedToSendCommand'), 'error');
    },
  });

  const selectExtruderMutation = useMutation({
    mutationFn: (extruder: number) => api.selectExtruder(printer.id, extruder),
    onMutate: async (extruder) => {
      await queryClient.cancelQueries({ queryKey: ['printerStatus', printer.id] });
      const previousStatus = queryClient.getQueryData(['printerStatus', printer.id]);
      queryClient.setQueryData(['printerStatus', printer.id], (old: PrinterStatus | undefined) =>
        old ? { ...old, active_extruder: extruder } : old
      );
      return { previousStatus };
    },
    onSuccess: (result) => {
      setStatusControlMenu(null);
      showToast(result.message);
      queryClient.invalidateQueries({ queryKey: ['printerStatus', printer.id] });
    },
    onError: (error: Error, _extruder, context) => {
      if (context?.previousStatus) {
        queryClient.setQueryData(['printerStatus', printer.id], context.previousStatus);
      }
      showToast(error.message || t('printers.toast.failedToSendCommand'), 'error');
    },
  });

  // Chamber light mutation with optimistic update
  const chamberLightMutation = useMutation({
    mutationFn: (on: boolean) => api.setChamberLight(printer.id, on),
    onMutate: async (on) => {
      // Cancel any outgoing refetches
      await queryClient.cancelQueries({ queryKey: ['printerStatus', printer.id] });
      // Snapshot the previous value
      const previousStatus = queryClient.getQueryData(['printerStatus', printer.id]);
      // Optimistically update
      queryClient.setQueryData(['printerStatus', printer.id], (old: typeof status) => ({
        ...old,
        chamber_light: on,
      }));
      return { previousStatus };
    },
    onSuccess: (_, on) => {
      showToast(`Chamber light ${on ? 'on' : 'off'}`);
    },
    onError: (error: Error, _, context) => {
      // Rollback on error
      if (context?.previousStatus) {
        queryClient.setQueryData(['printerStatus', printer.id], context.previousStatus);
      }
      showToast(error.message || t('printers.toast.failedToControlChamberLight'), 'error');
    },
  });

  // Print speed mutation with optimistic update
  const printSpeedMutation = useMutation({
    mutationFn: (mode: number) => api.setPrintSpeed(printer.id, mode),
    onMutate: async (mode) => {
      await queryClient.cancelQueries({ queryKey: ['printerStatus', printer.id] });
      const previousStatus = queryClient.getQueryData(['printerStatus', printer.id]);
      queryClient.setQueryData(['printerStatus', printer.id], (old: typeof status) => ({
        ...old,
        speed_level: mode,
      }));
      return { previousStatus };
    },
    onError: (error: Error, _, context) => {
      if (context?.previousStatus) {
        queryClient.setQueryData(['printerStatus', printer.id], context.previousStatus);
      }
      showToast(error.message || t('printers.toast.failedToSetSpeed'), 'error');
    },
  });

  const airductMutation = useMutation({
    mutationFn: (mode: 'cooling' | 'heating') => api.setAirductMode(printer.id, mode),
    onMutate: async (mode) => {
      await queryClient.cancelQueries({ queryKey: ['printerStatus', printer.id] });
      const previousStatus = queryClient.getQueryData(['printerStatus', printer.id]);
      queryClient.setQueryData(['printerStatus', printer.id], (old: typeof status) => ({
        ...old,
        airduct_mode: mode === 'cooling' ? 0 : 1,
      }));
      return { previousStatus };
    },
    onError: (error: Error, _, context) => {
      if (context?.previousStatus) {
        queryClient.setQueryData(['printerStatus', printer.id], context.previousStatus);
      }
      showToast(error.message || t('printers.toast.failedToSendCommand'), 'error');
    },
  });

  const bedJogMutation = useMutation({
    mutationFn: ({ distance }: { distance: number }) =>
      api.bedJog(printer.id, distance),
    onError: (error: Error) =>
      showToast(error.message || t('printers.toast.failedToSendCommand'), 'error'),
  });

  const xyJogMutation = useMutation({
    mutationFn: ({ x, y }: { x: number; y: number }) =>
      api.xyJog(printer.id, x, y),
    onError: (error: Error) =>
      showToast(error.message || t('printers.toast.failedToSendCommand'), 'error'),
  });

  const extruderJogMutation = useMutation({
    mutationFn: (distance: number) =>
      api.extruderJog(printer.id, distance),
    onError: (error: Error) =>
      showToast(error.message || t('printers.toast.failedToSendCommand'), 'error'),
  });

  const homeAxesMutation = useMutation({
    mutationFn: (axes: 'z' | 'xy' | 'all') => api.homeAxes(printer.id, axes),
    onSuccess: () => {
      showToast(t('printers.bedJog.homingStarted'));
    },
    onError: (error: Error) =>
      showToast(error.message || t('printers.toast.failedToSendCommand'), 'error'),
  });

  // Plate detection setting mutation
  const plateDetectionMutation = useMutation({
    mutationFn: (enabled: boolean) => api.updatePrinter(printer.id, { plate_detection_enabled: enabled }),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: ['printers'] });
      showToast(plateDetectionMutation.variables ? t('printers.toast.plateCheckEnabled') : t('printers.toast.plateCheckDisabled'));
    },
    onError: (error: Error) => showToast(error.message || t('printers.toast.failedToUpdateSetting'), 'error'),
  });

  // Maintenance mode toggle (#1476). Wraps the `is_active` backend field that
  // already gates MQTT connection, queue dispatch, scheduler eligibility,
  // metrics, and the print picker — so flipping this flag puts the printer
  // out of service across every consumer in one place. Used from the
  // overflow menu and EditPrinterModal.
  const maintenanceMutation = useMutation({
    mutationFn: (isActive: boolean) => api.updatePrinter(printer.id, { is_active: isActive }),
    onSuccess: (_data, isActive) => {
      queryClient.invalidateQueries({ queryKey: ['printers'] });
      queryClient.invalidateQueries({ queryKey: ['printerStatus', printer.id] });
      showToast(
        isActive
          ? t('printers.maintenance.toastExited', { name: printer.name })
          : t('printers.maintenance.toastEntered', { name: printer.name }),
        'success',
      );
    },
    onError: (error: Error) => showToast(error.message || t('printers.toast.failedToUpdateSetting'), 'error'),
  });

  // Confirm before entering maintenance on a printing printer (entering mode
  // disconnects MQTT, which stops progress tracking + completion notifications
  // for the in-flight job).
  const [confirmMaintenanceEnter, setConfirmMaintenanceEnter] = useState(false);
  const handleEnterMaintenance = () => {
    if (status?.state === 'RUNNING' || status?.state === 'PAUSE') {
      setConfirmMaintenanceEnter(true);
    } else {
      maintenanceMutation.mutate(false);
    }
  };

  // Query for printable objects (for skip functionality)
  // Fetch when printing with 2+ objects OR when modal is open
  const isPrintingWithObjects = (status?.state === 'RUNNING' || status?.state === 'PAUSE') && (status?.printable_objects_count ?? 0) >= 2;
  const { data: objectsData } = useQuery({
    queryKey: ['printableObjects', printer.id],
    queryFn: () => api.getPrintableObjects(printer.id),
    enabled: showSkipObjectsModal || isPrintingWithObjects,
    refetchInterval: showSkipObjectsModal ? 5000 : (isPrintingWithObjects ? 30000 : false), // 5s when modal open, 30s otherwise
  });

  // State for tracking which AMS slot is being refreshed
  const [refreshingSlot, setRefreshingSlot] = useState<{ amsId: number; slotId: number } | null>(null);
  // Track if we've seen the printer enter "busy" state (ams_status_main !== 0)
  const seenBusyStateRef = useRef<boolean>(false);
  // Fallback timeout ref
  const refreshTimeoutRef = useRef<ReturnType<typeof setTimeout> | null>(null);
  // Minimum display time passed
  const minTimePassedRef = useRef<boolean>(false);

  // AMS slot refresh mutation
  const refreshAmsSlotMutation = useMutation({
    mutationFn: ({ amsId, slotId }: { amsId: number; slotId: number }) =>
      api.refreshAmsSlot(printer.id, amsId, slotId),
    onMutate: ({ amsId, slotId }) => {
      // Clear any existing timeout
      if (refreshTimeoutRef.current) {
        clearTimeout(refreshTimeoutRef.current);
      }
      // Reset state
      seenBusyStateRef.current = false;
      minTimePassedRef.current = false;
      setRefreshingSlot({ amsId, slotId });
      // Minimum display time (2 seconds)
      setTimeout(() => {
        minTimePassedRef.current = true;
      }, 2000);
      // Fallback timeout (30 seconds max)
      refreshTimeoutRef.current = setTimeout(() => {
        setRefreshingSlot(null);
      }, 30000);
    },
    onSuccess: (data) => {
      showToast(data.message || t('printers.toast.rfidRereadInitiated'));
    },
    onError: (error: Error) => {
      showToast(error.message || t('printers.toast.failedToRereadRfid'), 'error');
      if (refreshTimeoutRef.current) {
        clearTimeout(refreshTimeoutRef.current);
      }
      setRefreshingSlot(null);
    },
  });

  // AMS load/unload mutations (#891)
  const loadAmsTrayMutation = useMutation({
    mutationFn: ({ trayId }: { trayId: number }) => api.loadAmsTray(printer.id, trayId),
    onSuccess: (data) => {
      showToast(data.message || t('printers.toast.loadInitiated'));
    },
    onError: (error: Error) => {
      showToast(error.message || t('printers.toast.failedToLoad'), 'error');
    },
  });

  const unloadAmsMutation = useMutation({
    mutationFn: () => api.unloadAms(printer.id),
    onSuccess: (data) => {
      showToast(data.message || t('printers.toast.unloadInitiated'));
    },
    onError: (error: Error) => {
      showToast(error.message || t('printers.toast.failedToUnload'), 'error');
    },
  });

  // Plate references state
  const [plateReferences, setPlateReferences] = useState<{
    references: Array<{ index: number; label: string; timestamp: string; has_image: boolean; thumbnail_url: string }>;
    max_references: number;
  } | null>(null);
  const [editingRefLabel, setEditingRefLabel] = useState<{ index: number; label: string } | null>(null);

  // Fetch plate references
  const fetchPlateReferences = async () => {
    try {
      const data = await api.getPlateReferences(printer.id);
      setPlateReferences(data);
    } catch {
      // Ignore errors - references will show as empty
    }
  };

  // Toggle plate detection enabled/disabled
  const handleTogglePlateDetection = () => {
    plateDetectionMutation.mutate(!printer.plate_detection_enabled);
  };

  // Open plate detection management modal (for calibration/references)
  const handleOpenPlateManagement = async () => {
    setIsCheckingPlate(true);
    setPlateCheckResult(null);

    // Auto-turn on light if it's off
    const lightWasOff = status?.chamber_light === false;
    setPlateCheckLightWasOff(lightWasOff);
    if (lightWasOff) {
      await api.setChamberLight(printer.id, true);
      // Wait for light to physically turn on and camera to adjust exposure
      // (MQTT command is async, light takes ~1s to turn on, camera needs time to adjust)
      await new Promise(resolve => setTimeout(resolve, 2500));
    }

    try {
      const result = await api.checkPlateEmpty(printer.id, { includeDebugImage: true });
      setPlateCheckResult(result);
      fetchPlateReferences();
    } catch (error) {
      showToast(error instanceof Error ? error.message : t('printers.toast.failedToCheckPlate'), 'error');
      // Restore light if check failed
      if (lightWasOff) {
        await api.setChamberLight(printer.id, false);
        setPlateCheckLightWasOff(false);
      }
    } finally {
      setIsCheckingPlate(false);
    }
  };

  // Close plate check modal and restore light state
  const closePlateCheckModal = useCallback(async () => {
    setPlateCheckResult(null);
    // Restore light to original state if we turned it on
    if (plateCheckLightWasOff) {
      await api.setChamberLight(printer.id, false);
      setPlateCheckLightWasOff(false);
    }
  }, [plateCheckLightWasOff, printer.id]);

  // Calibrate plate detection handler
  const handleCalibratePlate = async (label?: string) => {
    setIsCalibrating(true);
    try {
      const result = await api.calibratePlateDetection(printer.id, { label });
      if (result.success) {
        showToast(result.message || t('printers.toast.calibrationSaved'), 'success');
        // Refresh references and re-check
        fetchPlateReferences();
        const checkResult = await api.checkPlateEmpty(printer.id, { includeDebugImage: true });
        setPlateCheckResult(checkResult);
      } else {
        showToast(result.message || t('printers.toast.calibrationFailed'), 'error');
      }
    } catch (error) {
      showToast(error instanceof Error ? error.message : t('printers.toast.calibrationFailed'), 'error');
    } finally {
      setIsCalibrating(false);
    }
  };

  // Update reference label
  const handleUpdateRefLabel = async (index: number, label: string) => {
    try {
      await api.updatePlateReferenceLabel(printer.id, index, label);
      setEditingRefLabel(null);
      fetchPlateReferences();
    } catch (error) {
      showToast(error instanceof Error ? error.message : t('printers.toast.failedToUpdateLabel'), 'error');
    }
  };

  // Delete reference
  const handleDeleteRef = async (index: number) => {
    try {
      await api.deletePlateReference(printer.id, index);
      showToast(t('printers.toast.referenceDeleted'), 'success');
      fetchPlateReferences();
      // Re-check to update counts
      const checkResult = await api.checkPlateEmpty(printer.id, { includeDebugImage: true });
      setPlateCheckResult(checkResult);
    } catch (error) {
      showToast(error instanceof Error ? error.message : t('printers.toast.failedToDeleteReference'), 'error');
    }
  };

  // Save ROI settings
  const handleSaveRoi = async () => {
    if (!editingRoi) return;
    setIsSavingRoi(true);
    try {
      await api.updatePrinter(printer.id, { plate_detection_roi: editingRoi });
      showToast(t('printers.toast.detectionAreaSaved'), 'success');
      setEditingRoi(null);
      // Re-check to see new ROI in action
      const checkResult = await api.checkPlateEmpty(printer.id, { includeDebugImage: true });
      setPlateCheckResult(checkResult);
    } catch (error) {
      showToast(error instanceof Error ? error.message : t('printers.toast.failedToSaveDetectionArea'), 'error');
    } finally {
      setIsSavingRoi(false);
    }
  };

  // Close plate check modal on Escape key
  useEffect(() => {
    const handleEscape = (e: KeyboardEvent) => {
      if (e.key === 'Escape' && plateCheckResult) {
        closePlateCheckModal();
      }
    };
    window.addEventListener('keydown', handleEscape);
    return () => window.removeEventListener('keydown', handleEscape);
  }, [plateCheckResult, closePlateCheckModal]);

  // Watch ams_status_main to detect when RFID read completes
  // ams_status_main: 0=idle, 2=rfid_identifying
  const deferredClearRef = useRef<ReturnType<typeof setTimeout> | null>(null);

  useEffect(() => {
    if (!refreshingSlot) return;

    const amsStatus = status?.ams_status_main ?? 0;

    // Track when we see non-idle state (printer is working)
    if (amsStatus !== 0) {
      seenBusyStateRef.current = true;
      // Cancel any deferred clear since we're back to busy
      if (deferredClearRef.current) {
        clearTimeout(deferredClearRef.current);
        deferredClearRef.current = null;
      }
    }

    // When we've seen busy and now idle, clear (with min time check)
    if (seenBusyStateRef.current && amsStatus === 0) {
      if (minTimePassedRef.current) {
        // Min time passed - clear now
        if (refreshTimeoutRef.current) {
          clearTimeout(refreshTimeoutRef.current);
        }
        setRefreshingSlot(null);
      } else {
        // Schedule clear after min time (2 seconds from start)
        if (!deferredClearRef.current) {
          deferredClearRef.current = setTimeout(() => {
            if (refreshTimeoutRef.current) {
              clearTimeout(refreshTimeoutRef.current);
            }
            setRefreshingSlot(null);
          }, 2000);
        }
      }
    }

    return () => {
      if (deferredClearRef.current) {
        clearTimeout(deferredClearRef.current);
      }
    };
  }, [status?.ams_status_main, refreshingSlot]);

  useEffect(() => {
    if (!showMenu) return;

    const handleClickOutside = (event: MouseEvent) => {
      const target = event.target as Node;
      if (!printerActionsMenuRef.current?.contains(target)) {
        setShowMenu(false);
      }
    };

    document.addEventListener('mousedown', handleClickOutside);
    return () => document.removeEventListener('mousedown', handleClickOutside);
  }, [showMenu]);

  if (shouldHide) {
    return null;
  }

  // Size-based styling helpers
  // Body type and icon scale (#1848). S/M/L/XL already scaled the card's
  // width, its thumbnail and the printer name, but every label inside the
  // body was pinned at 8-11px, so an XL card showed the same tiny text as an
  // S one -- the disparity was worst exactly where someone asking for more
  // room ends up. These custom properties carry the scaled sizes into the
  // card's subtree. S and M are deliberately 1.0: nobody's card changes
  // unless they reach for a size that is already asking for more space.
  // Plain computation rather than useMemo: this sits after the card's early
  // returns, where a hook would break the rules-of-hooks ordering, and
  // building ten strings per render costs nothing.
  const cardScaleStyle = buildCardScaleStyle(cardSize);

  const getImageSize = () => {
    switch (cardSize) {
      case 1: return 'w-10 h-10';
      case 2: return 'w-14 h-14';
      case 3: return 'w-16 h-16';
      case 4: return 'w-20 h-20';
      default: return 'w-14 h-14';
    }
  };
  const getTitleSize = () => {
    switch (cardSize) {
      case 1: return 'text-base truncate';
      case 2: return 'text-lg';
      case 3: return 'text-xl';
      case 4: return 'text-2xl';
      default: return 'text-lg';
    }
  };
  const getSpacing = () => {
    switch (cardSize) {
      case 1: return 'mb-2';
      case 2: return 'mb-4';
      case 3: return 'mb-5';
      case 4: return 'mb-6';
      default: return 'mb-4';
    }
  };

  const canDrop = isConnected && status?.state !== 'RUNNING' && status?.state !== 'PAUSE' && hasPermission('printers:control');

  const handleCardDragEnter = (e: React.DragEvent) => {
    e.preventDefault();
    dragCounterRef.current++;
    if (dragCounterRef.current === 1) setIsDraggingFile(true);
  };

  const handleCardDragOver = (e: React.DragEvent) => {
    e.preventDefault();
    e.dataTransfer.dropEffect = canDrop ? 'copy' : 'none';
  };

  const handleCardDragLeave = (e: React.DragEvent) => {
    e.preventDefault();
    dragCounterRef.current--;
    if (dragCounterRef.current === 0) setIsDraggingFile(false);
  };

  const handleCardDrop = async (e: React.DragEvent) => {
    e.preventDefault();
    dragCounterRef.current = 0;
    setIsDraggingFile(false);

    if (!canDrop) return;

    const droppedFiles = Array.from(e.dataTransfer.files);
    const file = droppedFiles[0];
    if (!file) return;

    // Only accept sliced/printable files (.gcode, .gcode.3mf, etc.)
    const lower = file.name.toLowerCase();
    if (!lower.endsWith('.gcode') && !lower.includes('.gcode.')) {
      showToast(t('printers.dropNotPrintable', 'Only .gcode and .gcode.3mf files can be printed'), 'error');
      return;
    }

    setIsDropUploading(true);
    try {
      const result = await api.uploadLibraryFile(file, null);

      // Check printer compatibility if sliced_for_model is available in metadata
      const slicedFor = (result.metadata as Record<string, unknown>)?.sliced_for_model as string | undefined;
      const printerModel = mapModelCode(printer.model);
      if (slicedFor && printerModel && slicedFor.toLowerCase() !== printerModel.toLowerCase()) {
        await api.deleteLibraryFile(result.id).catch(() => {});
        showToast(
          t('printers.incompatibleFile', 'This file was sliced for {{slicedFor}}, but this printer is a {{printerModel}}', { slicedFor, printerModel }),
          'error'
        );
        return;
      }

      setPrintAfterUpload({ id: result.id, filename: result.filename });
    } catch {
      showToast(t('common.uploadFailed', 'Upload failed'), 'error');
    } finally {
      setIsDropUploading(false);
    }
  };

  const handleCardClick = (e: React.MouseEvent) => {
    if (viewMode !== 'compact' || selectionMode) return;
    const target = e.target as HTMLElement;
    if (target.closest('button, a, input, select, textarea, [role="button"]')) return;
    onOpenCompactCard?.(printer.id);
  };

  const footerActionButtonClass = '!h-8 !min-h-8 !px-2 !py-0';
  const footerIconButtonClass = '!h-8 !min-h-8 !w-8 !px-0 !py-0';
  const renderAmsSlotActions = ({
    amsId,
    slotId,
    loadTrayId,
    isRefreshing,
    includeRfid = true,
  }: {
    amsId: number;
    slotId: number;
    loadTrayId: number;
    isRefreshing?: boolean;
    includeRfid?: boolean;
  }) => {
    const printerBusy = status?.state === 'RUNNING';

    return (
      <>
        {includeRfid && (
          <button
            className={`w-full px-2 py-1.5 text-left text-xs flex items-center gap-2 rounded transition-colors ${
              hasPermission('printers:ams_rfid')
                ? 'text-white hover:bg-bambu-dark-tertiary'
                : 'text-bambu-gray/50 cursor-not-allowed'
            }`}
            onClick={(e) => {
              e.stopPropagation();
              if (printerBusy || !hasPermission('printers:ams_rfid')) return;
              refreshAmsSlotMutation.mutate({ amsId, slotId });
            }}
            disabled={printerBusy || isRefreshing || !hasPermission('printers:ams_rfid')}
            title={printerBusy ? t('printers.bedJog.disabledWhilePrinting') : !hasPermission('printers:ams_rfid') ? t('printers.permission.noAmsRfid') : undefined}
          >
            <RefreshCw className={`w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)] ${isRefreshing ? 'animate-spin' : ''}`} />
            {t('printers.rfid.reread')}
          </button>
        )}
        <button
          className={`w-full px-2 py-1.5 text-left text-xs flex items-center gap-2 rounded transition-colors ${
            hasPermission('printers:control')
              ? 'text-white hover:bg-bambu-dark-tertiary'
              : 'text-bambu-gray/50 cursor-not-allowed'
          }`}
          onClick={(e) => {
            e.stopPropagation();
            if (printerBusy || !hasPermission('printers:control')) return;
            loadAmsTrayMutation.mutate({ trayId: loadTrayId });
          }}
          disabled={printerBusy || !hasPermission('printers:control')}
          title={printerBusy ? t('printers.bedJog.disabledWhilePrinting') : !hasPermission('printers:control') ? t('printers.permission.noControl') : undefined}
        >
          <LogIn className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)]" />
          {t('printers.ams.load')}
        </button>
        <button
          className={`w-full px-2 py-1.5 text-left text-xs flex items-center gap-2 rounded transition-colors ${
            hasPermission('printers:control')
              ? 'text-white hover:bg-bambu-dark-tertiary'
              : 'text-bambu-gray/50 cursor-not-allowed'
          }`}
          onClick={(e) => {
            e.stopPropagation();
            if (printerBusy || !hasPermission('printers:control')) return;
            unloadAmsMutation.mutate();
          }}
          disabled={printerBusy || !hasPermission('printers:control')}
          title={printerBusy ? t('printers.bedJog.disabledWhilePrinting') : !hasPermission('printers:control') ? t('printers.permission.noControl') : undefined}
        >
          <LogOut className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)]" />
          {t('printers.ams.unload')}
        </button>
      </>
    );
  };

  const printerActionsMenu = (
    <div ref={printerActionsMenuRef} className="relative flex-shrink-0">
      <Button
        variant="secondary"
        size="sm"
        onClick={() => setShowMenu(!showMenu)}
        title={t('common.more', 'More')}
        className={footerIconButtonClass}
      >
        <MoreVertical className="w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)]" />
      </Button>
      {showMenu && (
        <div className="absolute left-0 bottom-full mb-2 w-48 bg-bambu-dark-secondary border border-bambu-dark-tertiary rounded-lg shadow-lg z-20">
          <button
            className={`w-full px-4 py-2 text-left text-sm flex items-center gap-2 ${
              hasPermission('printers:update')
                ? 'hover:bg-bambu-dark-tertiary'
                : 'opacity-50 cursor-not-allowed'
            }`}
            onClick={() => {
              if (!hasPermission('printers:update')) return;
              setShowEditModal(true);
              setShowMenu(false);
            }}
            title={!hasPermission('printers:update') ? t('printers.permission.noEdit') : undefined}
          >
            <Pencil className="w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)]" />
            {t('common.edit')}
          </button>
          <button
            className="w-full px-4 py-2 text-left text-sm hover:bg-bambu-dark-tertiary flex items-center gap-2"
            onClick={() => {
              setShowPrinterInfo(true);
              setShowMenu(false);
            }}
          >
            <Info className="w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)]" />
            {t('printers.printerInformation')}
          </button>
          {/* Maintenance Mode toggle (#1476) — leverages backend is_active flag */}
          <button
            className={`w-full px-4 py-2 text-left text-sm flex items-center gap-2 ${
              hasPermission('printers:update')
                ? 'hover:bg-bambu-dark-tertiary'
                : 'opacity-50 cursor-not-allowed'
            }`}
            disabled={maintenanceMutation.isPending || !hasPermission('printers:update')}
            onClick={() => {
              if (!hasPermission('printers:update')) return;
              setShowMenu(false);
              if (printer.is_active !== false) {
                handleEnterMaintenance();
              } else {
                maintenanceMutation.mutate(true);
              }
            }}
            title={!hasPermission('printers:update') ? t('printers.permission.noEdit') : undefined}
          >
            <Wrench className="w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)]" />
            {printer.is_active !== false
              ? t('printers.maintenance.menuEnter')
              : t('printers.maintenance.menuExit')}
          </button>
          <button
            className="w-full px-4 py-2 text-left text-sm hover:bg-bambu-dark-tertiary flex items-center gap-2"
            onClick={() => {
              connectMutation.mutate();
              setShowMenu(false);
            }}
          >
            <RefreshCw className="w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)]" />
            {t('printers.reconnect')}
          </button>
          <button
            className="w-full px-4 py-2 text-left text-sm hover:bg-bambu-dark-tertiary flex items-center gap-2 disabled:opacity-50"
            disabled={forceRefreshMutation.isPending}
            onClick={() => {
              forceRefreshMutation.mutate();
              setShowMenu(false);
            }}
          >
            <RotateCw className={`w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)] ${forceRefreshMutation.isPending ? 'animate-spin' : ''}`} />
            {t('printers.forceRefresh')}
          </button>
          <button
            className="w-full px-4 py-2 text-left text-sm hover:bg-bambu-dark-tertiary flex items-center gap-2"
            onClick={() => {
              setShowMQTTDebug(true);
              setShowMenu(false);
            }}
          >
            <Terminal className="w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)]" />
            {t('printers.mqttDebug')}
          </button>
          <button
            className="w-full px-4 py-2 text-left text-sm hover:bg-bambu-dark-tertiary flex items-center gap-2"
            onClick={() => {
              setShowDiagnostic(true);
              setShowMenu(false);
            }}
          >
            <Stethoscope className="w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)]" />
            {t('diagnostic.runButton')}
          </button>
          <button
            className={`w-full px-4 py-2 text-left text-sm flex items-center gap-2 ${
              hasPermission('printers:delete')
                ? 'text-red-700 dark:text-red-400 hover:bg-bambu-dark-tertiary'
                : 'text-red-700/50 dark:text-red-400/50 cursor-not-allowed'
            }`}
            onClick={() => {
              if (!hasPermission('printers:delete')) return;
              setShowDeleteConfirm(true);
              setShowMenu(false);
            }}
            title={!hasPermission('printers:delete') ? t('printers.permission.noDelete') : undefined}
          >
            <Trash2 className="w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)]" />
            {t('common.delete')}
          </button>
        </div>
      )}
    </div>
  );

  return (
    <Card
      id={`printer-card-${printer.id}`}
      className={`relative flex h-full flex-col ${isSelected ? 'ring-2 ring-bambu-green' : ''} ${selectionMode || viewMode === 'compact' ? 'cursor-pointer' : ''}`}
      style={cardScaleStyle}
      onClick={handleCardClick}
      onDragEnter={handleCardDragEnter}
      onDragOver={handleCardDragOver}
      onDragLeave={handleCardDragLeave}
      onDrop={handleCardDrop}
    >
      {/* Selection mode click overlay — captures all clicks, preventing nested interactions */}
      {selectionMode && (
        <div
          className="absolute inset-0 z-20 flex items-start p-2"
          onClick={(e) => { e.stopPropagation(); onToggleSelect?.(printer.id); }}
        >
          {isSelected ? (
            <CheckSquare className="w-[var(--pc-i5,1.25rem)] h-[var(--pc-i5,1.25rem)] text-bambu-green" />
          ) : (
            <Square className="w-[var(--pc-i5,1.25rem)] h-[var(--pc-i5,1.25rem)] text-bambu-gray" />
          )}
        </div>
      )}
      {/* Drop zone overlay */}
      {(isDraggingFile || isDropUploading) && (
        <div
          className={`absolute inset-0 z-10 rounded-xl border-2 border-dashed flex items-center justify-center transition-colors ${
            isDropUploading
              ? 'bg-bambu-green/10 border-bambu-green/50'
              : canDrop
                ? 'bg-bambu-green/10 border-bambu-green'
                : 'bg-red-50 dark:bg-red-500/10 border-red-300 dark:border-red-500/50'
          }`}
        >
          <div className="text-center">
            {isDropUploading ? (
              <>
                <Loader2 className="w-8 h-8 mx-auto mb-2 text-bambu-green animate-spin" />
                <p className="text-sm font-medium text-bambu-green">{t('common.uploading', 'Uploading...')}</p>
              </>
            ) : canDrop ? (
              <>
                <PrinterIcon className="w-8 h-8 mx-auto mb-2 text-bambu-green" />
                <p className="text-sm font-medium text-bambu-green">{t('printers.dropToPrint', 'Drop to print')}</p>
              </>
            ) : (
              <>
                <X className="w-8 h-8 mx-auto mb-2 text-red-600 dark:text-red-400" />
                <p className="text-sm font-medium text-red-700 dark:text-red-400">{t('printers.cannotPrint', 'Printer busy')}</p>
              </>
            )}
          </div>
        </div>
      )}
      <CardContent className={`${cardSize >= 3 ? 'p-5' : ''} flex flex-1 flex-col`}>
        {/* Header */}
        <div className={getSpacing()}>
          {/* Top row: Image, Name, Menu */}
          <div className="flex items-start justify-between gap-2">
            <div className="flex items-center gap-3 min-w-0 flex-1">
              {/* Printer Model Image */}
              <img
                src={getPrinterImage(printer.model)}
                alt={printer.model || t('common.printer')}
                className={`object-contain rounded-lg flex-shrink-0 ${getImageSize()}`}
              />
              <div className="min-w-0 flex-1">
                <div className="flex items-center justify-between gap-2">
                  <div className="flex min-w-0 items-center gap-2">
                    <h3 className={`font-semibold text-white ${getTitleSize()}`}>{printer.name}</h3>
                    {/* Connection indicator dot for compact mode */}
                    {viewMode === 'compact' && (() => {
                      const hmsErrors = status?.connected && status.hms_errors ? filterKnownHMSErrors(status.hms_errors) : [];
                      const hasSevere = hmsErrors.some(e => e.severity <= 2);
                      const hasWarning = hmsErrors.length > 0;
                      const pipColor = !status?.connected
                        ? 'bg-status-error'
                        : hasSevere
                          ? 'bg-status-error'
                          : hasWarning
                            ? 'bg-status-warning'
                            : 'bg-status-ok';
                      const pipTitle = !status?.connected
                        ? t('printers.connection.offline')
                        : hasWarning
                          ? `${hmsErrors.length} HMS ${hmsErrors.length === 1 ? 'error' : 'errors'}`
                          : t('printers.connection.connected');
                      return (
                        <div
                          className={`w-[var(--pc-i2,0.5rem)] h-[var(--pc-i2,0.5rem)] rounded-full flex-shrink-0 ${pipColor}`}
                          title={pipTitle}
                        />
                      );
                    })()}
                  </div>
                  {viewMode === 'compact' && showClearPlateButton && (
                    <button
                      type="button"
                      onClick={() => clearPlateMutation.mutate()}
                      disabled={clearPlateMutation.isPending || !hasPermission('printers:clear_plate')}
                      aria-label={t('printers.plateStatus.markCleared')}
                      className="inline-flex h-5 w-5 flex-shrink-0 items-center justify-center rounded-md bg-yellow-100 dark:bg-yellow-500/20 border border-yellow-300 dark:border-yellow-400/40 text-yellow-700 dark:text-yellow-400 hover:bg-yellow-500/30 transition-colors disabled:opacity-50"
                      title={!hasPermission('printers:clear_plate') ? t('printers.permission.noControl') : t('printers.plateStatus.markCleared')}
                    >
                      {clearPlateMutation.isPending ? (
                        <Loader2 className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)] animate-spin" />
                      ) : (
                        <PlateClearedIcon className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)]" />
                      )}
                    </button>
                  )}
                </div>
                <p className="text-sm text-bambu-gray">
                  {printer.model || 'Unknown Model'}
                  {/* Nozzle Info - only in expanded */}
                  {viewMode === 'expanded' && status?.nozzles && status.nozzles[0]?.nozzle_diameter && (
                    <span className="ml-1.5 text-bambu-gray" title={status.nozzles[0].nozzle_type || 'Nozzle'}>
                      • {status.nozzles[0].nozzle_diameter}mm
                    </span>
                  )}
                  {viewMode === 'expanded' && maintenanceInfo && maintenanceInfo.total_print_hours > 0 && (
                    <span className="ml-2 text-bambu-gray">
                      <Clock className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)] inline-block mr-1" />
                      {Math.round(maintenanceInfo.total_print_hours)}h
                    </span>
                  )}
                </p>
              </div>
            </div>
          </div>

          {/* Badges row - only in expanded mode */}
          {viewMode === 'expanded' && (
            <div className="mt-2">
              <div className="flex flex-wrap items-center gap-2">
              {/* Connection status badge (or Maintenance pill when out of service).
                  Defensive: only swap when is_active is EXPLICITLY false. An
                  undefined / missing field defaults to "active" so the regular
                  pill renders — matches the backend default and prevents test
                  fixtures (or stale clients) from accidentally tripping the
                  maintenance UI. */}
              {printer.is_active === false ? (
                <span
                  className="flex items-center gap-1.5 px-2 py-1 rounded-full text-xs bg-amber-100 dark:bg-amber-500/20 text-amber-700 dark:text-amber-400"
                  title={t('printers.maintenance.subtitle')}
                >
                  <Wrench className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)]" />
                  {t('printers.maintenance.pillLabel')}
                </span>
              ) : (
                <span
                  className={`flex items-center gap-1.5 px-2 py-1 rounded-full text-xs ${
                    status?.connected
                      ? 'bg-status-ok/20 text-status-ok'
                      : 'bg-status-error/20 text-status-error'
                  }`}
                >
                  {status?.connected ? (
                    <Link className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)]" />
                  ) : (
                    <Unlink className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)]" />
                  )}
                  {status?.connected ? t('printers.connection.connected') : t('printers.connection.offline')}
                </span>
              )}
              {/* Run connection diagnostic — offered when the printer is offline, NOT in maintenance */}
              {printer.is_active !== false && !status?.connected && (
                <button
                  onClick={() => setShowDiagnostic(true)}
                  className="flex items-center gap-1 px-2 py-1 rounded-full text-xs cursor-pointer bg-bambu-dark-tertiary text-bambu-gray hover:text-white transition-colors"
                  title={t('diagnostic.runButton')}
                >
                  <Stethoscope className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)]" />
                  {t('diagnostic.runButton')}
                </button>
              )}
              {/* Network connection indicator */}
              {status?.connected && status?.wired_network && (
                <span
                  className="flex items-center gap-1 px-2 py-1 rounded-full text-xs bg-status-ok/20 text-status-ok"
                  title={t('printers.connection.ethernet', 'Ethernet')}
                >
                  <Cable className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)]" />
                  {t('printers.connection.ethernet', 'Ethernet')}
                </span>
              )}
              {/* WiFi signal indicator */}
              {status?.connected && !status?.wired_network && wifiSignal != null && (
                <span
                  className={`flex items-center gap-1 px-2 py-1 rounded-full text-xs ${
                    wifiSignal >= -50
                      ? 'bg-status-ok/20 text-status-ok'
                      : wifiSignal >= -60
                      ? 'bg-status-ok/20 text-status-ok'
                      : wifiSignal >= -70
                      ? 'bg-status-warning/20 text-status-warning'
                      : wifiSignal >= -80
                      ? 'bg-orange-500/20 text-orange-600'
                      : 'bg-status-error/20 text-status-error'
                  }`}
                  title={`WiFi: ${wifiSignal} dBm - ${t(getWifiStrength(wifiSignal).labelKey)}`}
                >
                  <Signal className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)]" />
                  {wifiSignal}dBm
                </span>
              )}
              {/* HMS Status Indicator */}
              {status?.connected && (() => {
                const knownErrors = status.hms_errors ? filterKnownHMSErrors(status.hms_errors) : [];
                return (
                  <button
                    onClick={() => setShowHMSModal(true)}
                    className={`flex items-center gap-1 px-2 py-1 rounded-full text-xs cursor-pointer hover:opacity-80 transition-opacity ${
                      knownErrors.length > 0
                        ? knownErrors.some(e => e.severity <= 2)
                          ? 'bg-status-error/20 text-status-error'
                          : 'bg-status-warning/20 text-status-warning'
                        : 'bg-status-ok/20 text-status-ok'
                    }`}
                    title={t('printers.clickToViewHmsErrors')}
                  >
                    <AlertTriangle className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)]" />
                    {knownErrors.length > 0 ? knownErrors.length : 'OK'}
                  </button>
                );
              })()}
              {/* AI failure detection badge (#1546) — always shown while detection
                  is enabled for this printer, like the other health badges. Gray
                  "Idle" outside a monitored print, class-colored during one. */}
              {aiDetectionEnabled && (() => {
                const cls = aiDetection
                  ? (aiDetection.class === 'failure' || aiDetection.class === 'warning' ? aiDetection.class : 'safe')
                  : 'idle';
                const colorClass =
                  cls === 'failure'
                    ? 'bg-status-error/20 text-status-error'
                    : cls === 'warning'
                      ? 'bg-status-warning/20 text-status-warning'
                      : cls === 'safe'
                        ? 'bg-status-ok/20 text-status-ok'
                        : 'bg-bambu-dark-tertiary text-bambu-gray';
                return (
                  <button
                    onClick={() => setShowAiModal(true)}
                    className={`flex items-center gap-1 px-2 py-1 rounded-full text-xs cursor-pointer hover:opacity-80 transition-opacity ${colorClass}`}
                    title={
                      aiDetection
                        ? t('printers.aiDetection.tooltip', {
                            status: t(`printers.aiDetection.${cls}`),
                            score: aiDetection.score.toFixed(3),
                          })
                        : t('printers.aiDetection.tooltipIdle')
                    }
                  >
                    <ScanEye className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)]" />
                    {t(`printers.aiDetection.${cls}`)}
                  </button>
                );
              })()}
              {/* Maintenance Status Indicator */}
              {maintenanceInfo && (
                <button
                  onClick={() => navigate('/maintenance')}
                  className={`flex items-center gap-1 px-2 py-1 rounded-full text-xs cursor-pointer hover:opacity-80 transition-opacity ${
                    maintenanceInfo.due_count > 0
                      ? 'bg-status-error/20 text-status-error'
                      : maintenanceInfo.warning_count > 0
                      ? 'bg-status-warning/20 text-status-warning'
                      : 'bg-status-ok/20 text-status-ok'
                  }`}
                  title={
                    maintenanceInfo.due_count > 0 || maintenanceInfo.warning_count > 0
                      ? `${maintenanceInfo.due_count > 0 ? `${maintenanceInfo.due_count} maintenance due` : ''}${maintenanceInfo.due_count > 0 && maintenanceInfo.warning_count > 0 ? ', ' : ''}${maintenanceInfo.warning_count > 0 ? `${maintenanceInfo.warning_count} due soon` : ''} - Click to view`
                      : t('printers.maintenanceUpToDate')
                  }
                >
                  <Wrench className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)]" />
                  {maintenanceInfo.due_count > 0 || maintenanceInfo.warning_count > 0
                    ? maintenanceInfo.due_count + maintenanceInfo.warning_count
                    : 'OK'}
                </button>
              )}
              {/* Queue Count Badge */}
              {queueCount > 0 && (
                <button
                  onClick={() => navigate('/queue')}
                  className="flex items-center gap-1 px-2 py-1 rounded-full text-xs bg-indigo-100 dark:bg-indigo-500/20 text-indigo-700 dark:text-indigo-400 hover:opacity-80 transition-opacity"
                  title={t('printers.queue.inQueue', { count: queueCount })}
                >
                  <Layers className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)]" />
                  {queueCount}
                </button>
              )}
              {/* Firmware Version Badge */}
              {checkPrinterFirmware && firmwareInfo?.current_version && firmwareInfo?.latest_version ? (
                <button
                  onClick={() => setShowFirmwareModal(true)}
                  className={`flex items-center gap-1 px-2 py-1 rounded-full text-xs hover:opacity-80 transition-opacity ${
                    firmwareInfo.update_available
                      ? 'bg-orange-100 dark:bg-orange-500/20 text-orange-700 dark:text-orange-400'
                      : 'bg-status-ok/20 text-status-ok'
                  }`}
                  title={
                    firmwareInfo.update_available
                      ? t('printers.firmwareUpdateAvailable', { current: firmwareInfo.current_version, latest: firmwareInfo.latest_version })
                      : t('printers.firmwareUpToDate', { version: firmwareInfo.current_version })
                  }
                >
                  {firmwareInfo.update_available ? <Download className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)]" /> : <CheckCircle className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)]" />}
                  {firmwareInfo.current_version}
                </button>
              ) : status?.firmware_version ? (
                <span className="flex items-center gap-1 px-2 py-1 rounded-full text-xs bg-bambu-dark-tertiary/50 text-bambu-gray">
                  {status.firmware_version}
                </span>
              ) : null}

              {/* Enclosure Door Badge — models with an actual door sensor.
                  P1S has an enclosure door but no sensor; P1P has no enclosure at all. */}
              {status?.connected && ['X1C', 'X1', 'X1E', 'X2D', 'P2S', 'H2D', 'H2D Pro', 'H2C', 'H2S'].includes(printer.model ?? '') && (
                <span
                  className={`flex items-center px-2 py-1 rounded-full text-xs ${
                    status.door_open
                      ? 'bg-yellow-100 dark:bg-yellow-500/20 text-yellow-700 dark:text-yellow-400'
                      : 'bg-status-ok/20 text-status-ok'
                  }`}
                  title={status.door_open ? t('printers.door.open') : t('printers.door.closed')}
                >
                  {status.door_open ? <DoorOpen className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)]" /> : <DoorClosed className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)]" />}
                </span>
              )}
              </div>
            </div>
          )}
        </div>

        {/* Delete Confirmation */}
        {showDeleteConfirm && (
          <div className="fixed inset-0 bg-black/50 flex items-center justify-center z-50">
            <Card className="w-full max-w-md mx-4">
              <CardContent>
                <div className="flex items-start gap-3 mb-4">
                  <div className="p-2 rounded-full bg-red-100 dark:bg-red-500/20">
                    <AlertTriangle className="w-[var(--pc-i5,1.25rem)] h-[var(--pc-i5,1.25rem)] text-red-600 dark:text-red-400" />
                  </div>
                  <div>
                    <h3 className="text-lg font-semibold text-white">{t('printers.confirm.deleteTitle')}</h3>
                    <p className="text-sm text-bambu-gray mt-1">
                      {t('printers.confirm.deleteMessage', { name: printer.name })}
                    </p>
                  </div>
                </div>

                <div className="bg-bambu-dark rounded-lg p-3 mb-4">
                  <label className="flex items-start gap-3 cursor-pointer">
                    <input
                      type="checkbox"
                      checked={deleteArchives}
                      onChange={(e) => setDeleteArchives(e.target.checked)}
                      className="mt-0.5 w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)] rounded border-bambu-gray bg-bambu-dark-secondary text-bambu-green focus:ring-bambu-green focus:ring-offset-0"
                    />
                    <div>
                      <span className="text-sm text-white">{t('printers.deleteArchives')}</span>
                      <p className="text-xs text-bambu-gray mt-0.5">
                        {deleteArchives
                          ? t('printers.confirm.deleteArchivesNote')
                          : t('printers.confirm.keepArchivesNote')}
                      </p>
                    </div>
                  </label>
                </div>

                <div className="flex justify-end gap-2">
                  <Button
                    variant="secondary"
                    onClick={() => {
                      setShowDeleteConfirm(false);
                      setDeleteArchives(true);
                    }}
                  >
                    {t('common.cancel')}
                  </Button>
                  <Button
                    variant="danger"
                    onClick={() => {
                      deleteMutation.mutate({ deleteArchives });
                      setShowDeleteConfirm(false);
                      setDeleteArchives(true);
                    }}
                  >
                    Delete
                  </Button>
                </div>
              </CardContent>
            </Card>
          </div>
        )}

        {/* Status — see the equivalent defensive `=== false` check on the
            header pill above for why this is not `!printer.is_active`. */}
        {printer.is_active === false ? (
          // Maintenance mode (#1476) — replaces the cover/progress container
          // so the card keeps the same height. Renders for both compact and
          // expanded view modes so the printer stays visible but plainly
          // out-of-service.
          <>
            {viewMode === 'compact' ? (
              <div className="mt-2 flex items-center gap-2 px-2 py-1.5 rounded-full bg-amber-50 dark:bg-amber-500/15 border border-amber-300 dark:border-amber-500/30">
                <Wrench className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)] text-amber-600 dark:text-amber-400 shrink-0" />
                <span className="text-[length:var(--pc-t11,11px)] text-amber-700 dark:text-amber-400 font-medium truncate">
                  {t('printers.maintenance.pillLabel')}
                </span>
              </div>
            ) : (
              <>
                <div className="flex items-center gap-2 mb-2">
                  <span className="text-[length:var(--pc-t10,10px)] uppercase tracking-wider text-bambu-gray font-medium">
                    {t('printers.status.title', 'Status')}
                  </span>
                  <div className="flex-1 h-[2px] bg-bambu-dark-tertiary" />
                </div>
                <div className="p-3 bg-amber-50 dark:bg-amber-500/10 border border-amber-300 dark:border-amber-500/30 rounded-[10px] flex items-center gap-3">
                  <Wrench className="w-6 h-6 text-amber-600 dark:text-amber-400 shrink-0" />
                  <div className="flex-1 min-w-0">
                    <p className="text-sm text-amber-700 dark:text-amber-400 font-medium">
                      {t('printers.maintenance.title')}
                    </p>
                    <p className="text-xs text-bambu-gray mt-0.5">
                      {t('printers.maintenance.subtitle')}
                    </p>
                  </div>
                  <Button
                    variant="secondary"
                    size="sm"
                    disabled={maintenanceMutation.isPending || !hasPermission('printers:update')}
                    onClick={() => maintenanceMutation.mutate(true)}
                    title={!hasPermission('printers:update') ? t('printers.permission.noEdit') : undefined}
                  >
                    {t('printers.maintenance.exitButton')}
                  </Button>
                </div>
              </>
            )}
          </>
        ) : status?.connected && (
          <>
            {/* Compact: Simple status bar */}
            {viewMode === 'compact' ? (
              (() => {
                const hmsErrors = status.hms_errors ? filterKnownHMSErrors(status.hms_errors) : [];
                const hasProblem = status.state === 'FAILED' || hmsErrors.length > 0;
                const compactProgress = status.state === 'RUNNING' || status.state === 'PAUSE'
                  ? Math.max(0, Math.min(100, status.progress || 0))
                  : showClearPlateButton
                    ? 100
                    : hasProblem
                      ? 100
                      : 0;
                const isActiveCompactPrint = status.state === 'RUNNING' || status.state === 'PAUSE';
                const compactProgressClass = hasProblem
                  ? 'bg-status-error'
                  : status.state === 'PAUSE'
                    ? 'bg-status-warning'
                    : 'bg-bambu-green';

                const hasCompactEta = isActiveCompactPrint && status.remaining_time != null && status.remaining_time > 0;
                const hasCompactLayers =
                  isActiveCompactPrint &&
                  status.layer_num != null &&
                  status.total_layers != null &&
                  status.total_layers > 0;

                return (
                  <>
                    <div className="relative mt-2 flex items-center gap-2">
                      <div className="h-1.5 min-w-0 flex-1 overflow-hidden rounded-full bg-bambu-dark-tertiary">
                        <div
                          className={`${compactProgressClass} h-1.5 rounded-full transition-all`}
                          style={{ width: `${compactProgress}%` }}
                        />
                      </div>
                      <span className={`w-9 shrink-0 text-right text-[length:var(--pc-t11,11px)] leading-none ${isActiveCompactPrint ? 'text-white' : 'text-bambu-gray'}`}>
                        {isActiveCompactPrint ? `${Math.round(compactProgress)}%` : '---%'}
                      </span>
                    </div>
                    {/* #2674: size S showed only a name, a pip and a progress bar — not
                        enough to answer "which printer finishes first", which is what a
                        wall-mounted fleet view is for. One line of the metrics the
                        expanded card already renders, using the same formatters and the
                        same ETA styling so S and M read alike. The row keeps its height
                        when idle so cards don't shift as prints start and stop. */}
                    <div className="mt-1 flex min-h-[14px] items-center gap-2 overflow-hidden text-[length:var(--pc-t11,11px)] leading-none text-bambu-gray">
                      {hasCompactEta && (
                        <>
                          <span className="flex shrink-0 items-center gap-1">
                            <Clock className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)]" />
                            {formatDuration(status.remaining_time! * 60)}
                          </span>
                          <span
                            className="shrink-0 font-medium text-bambu-green"
                            title={t('printers.estimatedCompletion')}
                          >
                            ETA {formatETA(status.remaining_time!, timeFormat, t)}
                          </span>
                        </>
                      )}
                      {hasCompactLayers && (
                        <span className="flex min-w-0 items-center gap-1 truncate">
                          <Layers className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)] shrink-0" />
                          {status.layer_num}/{status.total_layers}
                        </span>
                      )}
                    </div>
                  </>
                );
              })()
            ) : (
              /* Expanded: Full status section */
              <>
                <div className="flex items-center gap-2 mb-2">
                  <span className="text-[length:var(--pc-t10,10px)] uppercase tracking-wider text-bambu-gray font-medium">
                    {t('printers.status.title', 'Status')}
                  </span>
                  <div className="flex-1 h-[2px] bg-bambu-dark-tertiary" />
                </div>

                {/* Current Print or Idle Placeholder */}
                {(() => {
                  const isActivePrint = !!(status.current_print && (status.state === 'RUNNING' || status.state === 'PAUSE'));
                  const showRetainedPrint = !isActivePrint && needsPlateClear && retainedPrintJob;
                  const printName = isActivePrint ? activePrintName : showRetainedPrint ? retainedPrintJob.name : null;
                  const coverUrl = isActivePrint ? status.cover_url : showRetainedPrint ? retainedPrintJob.coverUrl : null;
                  const progress = isActivePrint ? (status.progress || 0) : showRetainedPrint ? 100 : 0;

                  return (
                    <div className="p-2 bg-bambu-dark rounded-[10px] relative overflow-hidden">
                      <button
                        onClick={() => setShowSkipObjectsModal(true)}
                        disabled={!isActivePrint || (status.printable_objects_count ?? 0) < 2 || !hasPermission('printers:control')}
                        className={`absolute top-2 right-2 p-1.5 rounded transition-colors z-10 ${
                          isActivePrint && (status.printable_objects_count ?? 0) >= 2 && hasPermission('printers:control')
                            ? 'text-bambu-gray hover:text-white hover:bg-white/10'
                            : 'text-bambu-gray/30 cursor-not-allowed'
                        }`}
                        title={
                          !hasPermission('printers:control')
                            ? t('printers.permission.noControl')
                            : !isActivePrint
                              ? t('printers.skipObjects.onlyWhilePrinting')
                              : (status.printable_objects_count ?? 0) >= 2
                                ? t('printers.skipObjects.tooltip')
                                : t('printers.skipObjects.requiresMultiple')
                        }
                      >
                        <SkipObjectsIcon className="w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)]" />
                        {objectsData && objectsData.skipped_count > 0 && (
                          <span className="absolute -top-1 -right-1 min-w-[16px] h-4 px-1 flex items-center justify-center text-[length:var(--pc-t10,10px)] font-bold bg-red-500 text-white rounded-full">
                            {objectsData.skipped_count}
                          </span>
                        )}
                      </button>
                      <div className="flex items-stretch gap-2">
                        <CoverImage
                          url={coverUrl}
                          printName={printName || undefined}
                          className="w-24 h-24 max-[520px]:w-20 max-[520px]:h-20"
                        />
                        <div className="flex h-24 max-[520px]:h-20 min-w-0 flex-1 flex-col justify-between pt-1">
                          <div className="flex min-h-[18px] items-center gap-2 pr-8">
                            <p className="min-w-0 truncate text-sm text-bambu-gray">{getStatusDisplay(status.state, status.stg_cur_name)}</p>
                            {plateStatusPill}
                          </div>
                          <p className={`min-h-[18px] truncate pr-8 text-sm ${printName ? 'text-white' : 'text-bambu-gray/70'}`}>
                            {printName || t('printers.noActiveJob', 'No active job')}
                          </p>
                          <div className="flex h-3 items-center gap-2 text-sm">
                            <div className="h-1.5 min-w-0 flex-1 rounded-full bg-bambu-dark-tertiary">
                              <div
                                className={`${isActivePrint ? (status.state === 'PAUSE' ? 'bg-status-warning' : 'bg-bambu-green') : showRetainedPrint ? 'bg-bambu-green' : 'bg-bambu-dark-tertiary'} h-1.5 rounded-full transition-all`}
                                style={{ width: `${progress}%` }}
                              />
                            </div>
                            <span className={`w-9 shrink-0 pr-1 text-right text-[length:var(--pc-t11,11px)] leading-none ${isActivePrint || showRetainedPrint ? 'text-white' : 'text-bambu-gray'}`}>{isActivePrint || showRetainedPrint ? `${Math.round(progress)}%` : '---%'}</span>
                          </div>
                          <div className="flex min-h-[16px] items-center gap-2 text-xs text-bambu-gray">
                            {isActivePrint ? (
                              <>
                                {status.remaining_time != null && status.remaining_time > 0 && (
                                  <>
                                    <span className="flex items-center gap-1">
                                      <Clock className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)]" />
                                      {formatDuration(status.remaining_time * 60)}
                                    </span>
                                    <span className="text-bambu-green font-medium" title={t('printers.estimatedCompletion')}>
                                      ETA {formatETA(status.remaining_time, timeFormat, t)}
                                    </span>
                                  </>
                                )}
                                {status.layer_num != null && status.total_layers != null && status.total_layers > 0 && (
                                  <span className="flex items-center gap-1">
                                    <Layers className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)]" />
                                    {status.layer_num}/{status.total_layers}
                                  </span>
                                )}
                                {currentPrintUser && (
                                  <span className="flex items-center gap-1" title={`Started by ${currentPrintUser}`}>
                                    <User className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)]" />
                                    {currentPrintUser}
                                  </span>
                                )}
                              </>
                            ) : lastPrint ? (
                              <p className="truncate" title={lastPrint.print_name || lastPrint.filename}>
                                Last: {lastPrint.print_name || lastPrint.filename}
                                {lastPrint.completed_at && (
                                  <span className="ml-1 text-bambu-gray/60">
                                    • {formatDateOnly(lastPrint.completed_at, { month: 'short', day: 'numeric' })}
                                  </span>
                                )}
                              </p>
                            ) : (
                              <span>{t('printers.readyToPrint')}</span>
                            )}
                          </div>
                        </div>
                      </div>
                      <PrinterQueueWidget
                        printerId={printer.id}
                        printerModel={printer.model}
                        loadedFilamentTypes={loadedFilamentTypes}
                        loadedFilaments={loadedFilaments}
                        loadedVariants={loadedVariants}
                        variant="panelExtension"
                      />
                    </div>
                  );
                })()}
              </>
            )}

            {/* Temperatures */}
            {status.temperatures && viewMode === 'expanded' && (() => {
              // Use actual heater states from MQTT stream
              const nozzleHeating = status.temperatures.nozzle_heating || status.temperatures.nozzle_2_heating || false;
              const bedHeating = status.temperatures.bed_heating || false;
              const chamberHeating = status.temperatures.chamber_heating || false;
              const isDualNozzle = printer.nozzle_count === 2 || status.temperatures.nozzle_2 !== undefined;
              const availableHeaterKinds: HeaterSensorKind[] = (() => {
                const kinds: HeaterSensorKind[] = ['nozzle'];
                if (status.temperatures.nozzle_2 !== undefined) kinds.push('nozzle_2');
                kinds.push('bed');
                if (status.temperatures.chamber !== undefined) kinds.push('chamber');
                return kinds;
              })();
              // active_extruder: 0=right, 1=left
              const activeNozzle = status.active_extruder === 1 ? 'L' : 'R';
              // Extended nozzle data from nozzle_rack (H2 series: wear, serial, max_temp, etc.)
              // nozzle_rack id 0 = extruder 0 = RIGHT, id 1 = extruder 1 = LEFT
              const leftNozzleSlot = status.nozzle_rack?.find(s => s.id === 1);
              const rightNozzleSlot = status.nozzle_rack?.find(s => s.id === 0);
              // Single-nozzle models (H2D, H2C): use the primary nozzle (id 0)
              const singleNozzleSlot = rightNozzleSlot || leftNozzleSlot;
              const canUseStatusControls = status.connected && hasPermission('printers:control');
              const statusControlTitle = canUseStatusControls ? undefined : t('printers.permission.noControl');
              const statusControlClass = `relative text-center px-2 py-1.5 bg-bambu-dark rounded-lg flex-1 flex flex-col justify-center items-center transition-colors ${
                canUseStatusControls ? 'cursor-pointer hover:bg-bambu-dark-tertiary' : 'cursor-default opacity-80'
              }`;
              // Chamber fan only exists on enclosed Bambu models. Open-frame
              // printers (A1, A1 Mini, A2L, P1P) have no chamber fan — showing
              // the widget there is at best dead UI and at worst suggests a
              // control that does nothing. Mirrors the enclosure-door badge
              // gate above.
              const hasChamberFan = MODELS_WITH_CHAMBER_FAN.has(printer.model ?? '');
              // On P2S/X2D the big_fan2 fan is the dedicated chamber EXHAUST fan
              // ("Exhaust" in Bambu's naming) and is an add-on kit, not preinstalled:
              // show it only when the printer actually reports it (airduct part id 3,
              // surfaced as exhaust_fan_present). Other enclosed models (X1/P1S/H2*)
              // have a built-in chamber fan that's always present, so they keep the
              // existing model-list gate and the "Chamber Fan" label.
              const isExhaustModel = MODELS_WITH_EXHAUST_LABEL.has(printer.model ?? '');
              const chamberFanLabel = isExhaustModel
                ? t('printers.fans.exhaust')
                : t('printers.fans.chamber');
              // Composed rather than either/or so both lists stay live for
              // P2S/X2D: the model must have an enclosure fan at all, AND —
              // where that fan is an add-on kit — actually report it. Written
              // as `isExhaustModel ? exhaust_fan_present : hasChamberFan` the
              // P2S/X2D entries in MODELS_WITH_CHAMBER_FAN became unreachable,
              // which reads as if removing them were safe.
              const showChamberFan = hasChamberFan && (!isExhaustModel || status.exhaust_fan_present);
              const fanItems: {
                key: string;
                label: string;
                value: number;
                Icon: typeof Fan;
                activeClass: string;
              }[] = [
                {
                  key: 'part',
                  label: t('printers.fans.partCooling'),
                  value: status.cooling_fan_speed ?? 0,
                  Icon: Fan,
                  activeClass: 'text-cyan-600 dark:text-cyan-400',
                },
                // Left auxiliary part cooling fan (optional P2S/X2D accessory).
                // Only reported (non-null) when the firmware lists airduct part
                // id 10, i.e. when the fan is physically installed. Placed
                // before the right-hand auxiliary fan so the two aux badges read
                // left-to-right in the same order as the physical hardware.
                ...(status.left_aux_fan_speed != null
                  ? [
                      {
                        key: 'aux2',
                        label: t('printers.fans.leftAuxiliary'),
                        value: status.left_aux_fan_speed,
                        Icon: Wind,
                        activeClass: 'text-indigo-600 dark:text-indigo-400',
                      },
                    ]
                  : []),
                {
                  key: 'aux',
                  label: t('printers.fans.auxiliary'),
                  value: status.big_fan1_speed ?? 0,
                  Icon: Wind,
                  activeClass: 'text-blue-600 dark:text-blue-400',
                },
                ...(showChamberFan
                  ? [
                      {
                        key: 'chamber',
                        label: chamberFanLabel,
                        value: status.big_fan2_speed ?? 0,
                        Icon: AirVent,
                        activeClass: 'text-green-600 dark:text-green-400',
                      },
                    ]
                  : []),
              ];

              return (
                <>
                  <div className="mt-2 flex items-stretch gap-1.5 flex-wrap">
                    {/* Nozzle temp - combined for dual nozzle */}
                    <div
                      className={statusControlClass}
                      title={statusControlTitle}
                      onClick={() => canUseStatusControls && setStatusControlMenu(statusControlMenu === 'nozzle-temp' ? null : 'nozzle-temp')}
                    >
                      <button
                        type="button"
                        className="absolute top-0.5 right-0.5 p-0.5 rounded text-bambu-gray hover:text-white hover:bg-white/10 transition-colors"
                        title={t('printers.heaterHistory.openLabel', 'View heater history')}
                        onClick={(e) => {
                          e.stopPropagation();
                          setHeaterHistoryModal({ initialKind: 'nozzle', availableKinds: availableHeaterKinds });
                        }}
                      >
                        <LineChartIcon className="w-[var(--pc-i25,0.625rem)] h-[var(--pc-i25,0.625rem)]" />
                      </button>
                      <HeaterThermometer className="w-[var(--pc-i35,0.875rem)] h-[var(--pc-i35,0.875rem)] mb-0.5" color="text-orange-400" isHeating={nozzleHeating} />
                      {status.temperatures.nozzle_2 !== undefined ? (
                        <>
                          <p className="text-[length:var(--pc-t9,9px)] text-bambu-gray">L / R</p>
                          <p className="text-[length:var(--pc-t11,11px)] text-white">
                            {Math.round(status.temperatures.nozzle || 0)}° / {Math.round(status.temperatures.nozzle_2 || 0)}°
                          </p>
                        </>
                      ) : singleNozzleSlot ? (
                        <NozzleSlotHoverCard slot={singleNozzleSlot} index={0} activeStatus filamentName={singleNozzleSlot.filament_id ? filamentInfo?.[singleNozzleSlot.filament_id]?.name : undefined}>
                          <div className="cursor-default">
                            <p className="text-[length:var(--pc-t9,9px)] text-bambu-gray">{t('printers.temperatures.nozzle')}</p>
                            <p className="text-[length:var(--pc-t11,11px)] text-white">
                              {Math.round(status.temperatures.nozzle || 0)}°C
                            </p>
                          </div>
                        </NozzleSlotHoverCard>
                      ) : (
                        <>
                          <p className="text-[length:var(--pc-t9,9px)] text-bambu-gray">{t('printers.temperatures.nozzle')}</p>
                          <p className="text-[length:var(--pc-t11,11px)] text-white">
                            {Math.round(status.temperatures.nozzle || 0)}°C
                          </p>
                        </>
                      )}
                      {statusControlMenu === 'nozzle-temp' && (
                        isDualNozzle ? (
                          <IndicatorControlPopover
                            title="Set Nozzle Temperatures"
                            widthClass="w-[300px]"
                            popoverWidth={300}
                            popoverHeight={260}
                            isPending={nozzleTemperatureMutation.isPending}
                            onClose={() => setStatusControlMenu(null)}
                          >
                            <div className="grid grid-cols-2 gap-2 px-3 py-2.5">
                              <NozzleTemperatureControlBox
                                label="Left Temp"
                                current={status.temperatures.nozzle}
                                target={status.temperatures.nozzle_target}
                                isActive={activeNozzle === 'L'}
                                isPending={nozzleTemperatureMutation.isPending}
                                onSubmit={(target) => nozzleTemperatureMutation.mutate({ target, nozzle: 1 })}
                                options={buildPresetOptions(nozzleTempPresets, 'C')}
                              />
                              <NozzleTemperatureControlBox
                                label="Right Temp"
                                current={status.temperatures.nozzle_2}
                                target={status.temperatures.nozzle_2_target}
                                isActive={activeNozzle === 'R'}
                                isPending={nozzleTemperatureMutation.isPending}
                                onSubmit={(target) => nozzleTemperatureMutation.mutate({ target, nozzle: 0 })}
                                options={buildPresetOptions(nozzleTempPresets, 'C')}
                              />
                            </div>
                          </IndicatorControlPopover>
                        ) : (
                          <IndicatorControlPopover
                            title="Set Nozzle Temperature"
                            unit="°C"
                            customMin={0}
                            customMax={320}
                            isPending={nozzleTemperatureMutation.isPending}
                            options={buildPresetOptions(nozzleTempPresets, 'C')}
                            onClose={() => setStatusControlMenu(null)}
                            onSubmit={(target) => nozzleTemperatureMutation.mutate({ target, nozzle: status.active_extruder ?? 0 })}
                          />
                        )
                      )}
                    </div>
                    <div
                      className={statusControlClass}
                      title={statusControlTitle}
                      onClick={() => canUseStatusControls && setStatusControlMenu(statusControlMenu === 'bed-temp' ? null : 'bed-temp')}
                    >
                      <button
                        type="button"
                        className="absolute top-0.5 right-0.5 p-0.5 rounded text-bambu-gray hover:text-white hover:bg-white/10 transition-colors"
                        title={t('printers.heaterHistory.openLabel', 'View heater history')}
                        onClick={(e) => {
                          e.stopPropagation();
                          setHeaterHistoryModal({ initialKind: 'bed', availableKinds: availableHeaterKinds });
                        }}
                      >
                        <LineChartIcon className="w-[var(--pc-i25,0.625rem)] h-[var(--pc-i25,0.625rem)]" />
                      </button>
                      <HeaterThermometer className="w-[var(--pc-i35,0.875rem)] h-[var(--pc-i35,0.875rem)] mb-0.5" color="text-blue-400" isHeating={bedHeating} />
                      <p className="text-[length:var(--pc-t9,9px)] text-bambu-gray">{t('printers.temperatures.bed')}</p>
                      <p className="text-[length:var(--pc-t11,11px)] text-white">
                        {Math.round(status.temperatures.bed || 0)}°C
                      </p>
                      {statusControlMenu === 'bed-temp' && (
                        <IndicatorControlPopover
                          title="Set Bed Temperature"
                          unit="°C"
                          customMin={0}
                          customMax={140}
                          isPending={bedTemperatureMutation.isPending}
                          options={buildPresetOptions(bedTempPresets, 'C')}
                          onClose={() => setStatusControlMenu(null)}
                          onSubmit={(target) => bedTemperatureMutation.mutate(target)}
                        />
                      )}
                    </div>
                    {status.temperatures.chamber !== undefined && (() => {
                      // Sensor-only models (X1C, X1E, P2S) show the chamber reading
                      // but can't act on M141, so we keep the card read-only there.
                      const hasChamberHeater = status.supports_chamber_heater === true;
                      return (
                        <div
                          className={hasChamberHeater
                            ? statusControlClass
                            : 'relative text-center px-2 py-1.5 bg-bambu-dark rounded-lg flex-1 flex flex-col justify-center items-center'}
                          title={hasChamberHeater ? statusControlTitle : undefined}
                          onClick={hasChamberHeater
                            ? () => canUseStatusControls && setStatusControlMenu(statusControlMenu === 'chamber-temp' ? null : 'chamber-temp')
                            : undefined}
                        >
                          <button
                            type="button"
                            className="absolute top-0.5 right-0.5 p-0.5 rounded text-bambu-gray hover:text-white hover:bg-white/10 transition-colors"
                            title={t('printers.heaterHistory.openLabel', 'View heater history')}
                            onClick={(e) => {
                              e.stopPropagation();
                              setHeaterHistoryModal({ initialKind: 'chamber', availableKinds: availableHeaterKinds });
                            }}
                          >
                            <LineChartIcon className="w-[var(--pc-i25,0.625rem)] h-[var(--pc-i25,0.625rem)]" />
                          </button>
                          <HeaterThermometer className="w-[var(--pc-i35,0.875rem)] h-[var(--pc-i35,0.875rem)] mb-0.5" color="text-green-400" isHeating={chamberHeating} />
                          <p className="text-[length:var(--pc-t9,9px)] text-bambu-gray">{t('printers.temperatures.chamber')}</p>
                          <p className="text-[length:var(--pc-t11,11px)] text-white">
                            {Math.round(status.temperatures.chamber || 0)}°C
                          </p>
                          {hasChamberHeater && statusControlMenu === 'chamber-temp' && (
                            <IndicatorControlPopover
                              title="Set Chamber Temperature"
                              unit="°C"
                              customMin={0}
                              customMax={MAX_CHAMBER_TEMP_C}
                              isPending={chamberTemperatureMutation.isPending}
                              options={buildPresetOptions(chamberTempPresets, 'C')}
                              onClose={() => setStatusControlMenu(null)}
                              onSubmit={(target) => chamberTemperatureMutation.mutate(target)}
                            />
                          )}
                        </div>
                      );
                    })()}
                    {/* Active nozzle indicator for dual-nozzle printers */}
                    {isDualNozzle && (
                      <DualNozzleHoverCard
                        leftSlot={leftNozzleSlot}
                        rightSlot={rightNozzleSlot}
                        activeNozzle={activeNozzle}
                        filamentInfo={filamentInfo}
                      >
                        <div
                          className={`relative text-center px-3 py-1.5 bg-bambu-dark rounded-lg h-full flex flex-col justify-center items-center transition-colors ${
                            canUseStatusControls ? 'cursor-pointer hover:bg-bambu-dark-tertiary' : 'cursor-default opacity-80'
                          }`}
                          title={canUseStatusControls ? t('printers.activeNozzle', { nozzle: activeNozzle === 'L' ? t('common.left') : t('common.right') }) : statusControlTitle}
                          onClick={() => canUseStatusControls && setStatusControlMenu(statusControlMenu === 'nozzle-select' ? null : 'nozzle-select')}
                        >
                          <NozzleIcon className="w-[var(--pc-i35,0.875rem)] h-[var(--pc-i35,0.875rem)] mb-0.5 text-amber-600 dark:text-amber-400" />
                          <div className="flex items-center gap-2">
                            <span className={`text-[length:var(--pc-t11,11px)] font-bold ${activeNozzle === 'L' ? 'text-amber-700 dark:text-amber-400' : 'text-gray-500'}`}>
                              L{leftNozzleSlot?.nozzle_diameter ? ` ${leftNozzleSlot.nozzle_diameter}` : ''}
                            </span>
                            <span className="text-[length:var(--pc-t9,9px)] text-bambu-gray/40">·</span>
                            <span className={`text-[length:var(--pc-t11,11px)] font-bold ${activeNozzle === 'R' ? 'text-amber-700 dark:text-amber-400' : 'text-gray-500'}`}>
                              R{rightNozzleSlot?.nozzle_diameter ? ` ${rightNozzleSlot.nozzle_diameter}` : ''}
                            </span>
                          </div>
                          <p className="text-[length:var(--pc-t9,9px)] text-bambu-gray">{t('printers.temperatures.nozzle')}</p>
                          {statusControlMenu === 'nozzle-select' && (
                            <IndicatorControlPopover
                              title="Set Nozzle Selection"
                              widthClass="w-[300px]"
                              popoverWidth={300}
                              popoverHeight={140}
                              isPending={selectExtruderMutation.isPending}
                              options={[
                                { label: 'Left', value: 1 },
                                { label: 'Right', value: 0 },
                              ]}
                              onClose={() => setStatusControlMenu(null)}
                              onSubmit={(extruder) => selectExtruderMutation.mutate(extruder)}
                            />
                          )}
                        </div>
                      </DualNozzleHoverCard>
                    )}
                    {/* H2C nozzle rack (tool-changer dock) — only show when rack nozzles exist (IDs >= 2) */}
                    {status.nozzle_rack && status.nozzle_rack.some(s => s.id >= 2) && (
                      <NozzleRackCard slots={status.nozzle_rack} filamentInfo={filamentInfo} />
                    )}
                  </div>
                  <div className="mt-2 flex items-center gap-1.5">
                    {fanItems.map(({ key, label, value, Icon, activeClass }) => {
                      const active = value > 0;
                      return (
                        <div
                          key={key}
                          className={`relative px-2 py-1.5 bg-bambu-dark rounded-lg flex-1 min-w-0 flex items-center justify-center gap-1 transition-colors ${
                            canUseStatusControls ? 'cursor-pointer hover:bg-bambu-dark-tertiary' : 'cursor-default opacity-80'
                          }`}
                          title={canUseStatusControls ? label : statusControlTitle}
                          onClick={() => canUseStatusControls && setStatusControlMenu(statusControlMenu === `fan-${key}` ? null : `fan-${key}`)}
                        >
                          <Icon className={`w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)] shrink-0 ${active ? activeClass : 'text-bambu-gray/50'}`} />
                          <span className={`text-[length:var(--pc-t10,10px)] leading-none ${active ? 'text-white' : 'text-bambu-gray/50'}`}>
                            {value}%
                          </span>
                          {statusControlMenu === `fan-${key}` && (
                            <IndicatorControlPopover
                              title={`Set ${label} Speed`}
                              unit="%"
                              customMin={0}
                              customMax={100}
                              isPending={fanSpeedMutation.isPending}
                              options={buildPresetOptions(fanSpeedPresets, '%')}
                              onClose={() => setStatusControlMenu(null)}
                              onSubmit={(speed) => fanSpeedMutation.mutate({ fan: key as 'part' | 'aux' | 'aux2' | 'chamber', speed })}
                            />
                          )}
                        </div>
                      );
                    })}
                  </div>
                </>
              );
            })()}

            {viewMode === 'expanded' && showClearPlateButton && (
              <button
                type="button"
                onClick={() => clearPlateMutation.mutate()}
                disabled={clearPlateMutation.isPending || !hasPermission('printers:clear_plate')}
                className="mt-2 w-full inline-flex items-center justify-center gap-2 px-3 py-1.5 rounded-lg bg-yellow-100 dark:bg-yellow-500/20 border border-yellow-300 dark:border-yellow-400/40 text-yellow-700 dark:text-yellow-400 hover:bg-yellow-500/30 transition-colors text-xs font-medium disabled:opacity-50"
                title={!hasPermission('printers:clear_plate') ? t('printers.permission.noControl') : t('printers.plateStatus.markCleared')}
              >
                {clearPlateMutation.isPending ? (
                  <Loader2 className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)] animate-spin" />
                ) : (
                  <PlateClearedIcon className="w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)]" />
                )}
                {t('printers.plateStatus.markCleared')}
              </button>
            )}

            {/* Controls */}
            {viewMode === 'expanded' && (() => {
              // Determine print state for control buttons
              const isRunning = status.state === 'RUNNING';
              const isPaused = status.state === 'PAUSE';
              const isPrinting = isRunning || isPaused;
              const isControlBusy = stopPrintMutation.isPending || pausePrintMutation.isPending || resumePrintMutation.isPending;
              const unavailablePrintActionClass = 'bg-bambu-dark text-bambu-gray/50 cursor-not-allowed opacity-50';
              const iconControlClass = 'flex h-8 w-8 items-center justify-center rounded-lg text-xs font-medium transition-colors disabled:opacity-50 disabled:cursor-not-allowed';
              const printControlClass = 'flex h-8 w-20 items-center justify-center gap-1 px-2 rounded-lg text-xs font-medium transition-colors';

              return (
                <div className="mt-3">
                  {/* Section Header */}
                  <div className="flex items-center gap-2 mb-2">
                    <span className="text-[length:var(--pc-t10,10px)] uppercase tracking-wider text-bambu-gray font-medium">
                      {t('printers.controls')}
                    </span>
                    <div className="flex-1 h-[2px] bg-bambu-dark-tertiary" />
                  </div>

                  <div className="flex flex-wrap items-start justify-between gap-x-2 gap-y-2">
                    {/* Left: Secondary controls */}
                    <div className="flex flex-wrap items-center gap-2 min-w-0">
                      <button
                        onClick={() => chamberLightMutation.mutate(!status.chamber_light)}
                        disabled={!status.connected || chamberLightMutation.isPending || !hasPermission('printers:control')}
                        className={`${iconControlClass} ${
                          status.chamber_light
                            ? 'bg-yellow-50 dark:bg-yellow-500/10 text-yellow-700 dark:text-yellow-400 hover:bg-yellow-500/20'
                            : 'bg-bambu-dark text-bambu-gray/50 hover:bg-bambu-dark-tertiary hover:text-white'
                        }`}
                        title={!hasPermission('printers:control') ? t('printers.permission.noControl') : (status.chamber_light ? t('printers.chamberLightOff') : t('printers.chamberLightOn'))}
                      >
                        <ChamberLight on={status.chamber_light ?? false} className="w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)]" />
                      </button>

                      {/* Airduct Mode (P2S / X2D / H2*) */}
                      {(['P2S', 'X2D', 'H2D', 'H2C', 'H2S'].includes(printer.model ?? '')) && (() => {
                        const isHeating = status.airduct_mode === 1;
                        const Icon = isHeating ? Flame : Snowflake;
                        const color = isHeating ? 'text-orange-600 dark:text-orange-400' : 'text-sky-600 dark:text-sky-400';
                        const bg = isHeating ? 'bg-orange-50 dark:bg-orange-500/10 text-orange-700 dark:text-orange-400 hover:bg-orange-500/20' : 'bg-sky-50 dark:bg-sky-500/10 text-sky-700 dark:text-sky-400 hover:bg-sky-500/20';
                        return (
                          <div className="relative">
                            <button
                              onClick={() => setShowAirductMenu(showAirductMenu === printer.id ? null : printer.id)}
                              disabled={!hasPermission('printers:control')}
                              className={`${iconControlClass} ${bg}`}
                              title={`${t('printers.airduct.title')}: ${isHeating ? t('printers.airduct.heating') : t('printers.airduct.cooling')}`}
                            >
                              <Icon className={`w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)] ${color}`} />
                            </button>
                            {showAirductMenu === printer.id && (
                              <>
                                <div className="fixed inset-0 z-40" onClick={() => setShowAirductMenu(null)} />
                                <div className="absolute bottom-full left-0 mb-1 z-50 bg-bambu-dark-secondary border border-bambu-dark-tertiary rounded-lg shadow-lg py-1 min-w-[130px]">
                                  {([
                                    { mode: 'cooling', label: t('printers.airduct.cooling'), modeId: 0 },
                                    { mode: 'heating', label: t('printers.airduct.heating'), modeId: 1 },
                                  ] as const).map(({ mode, label, modeId }) => (
                                    <button
                                      key={mode}
                                      onClick={() => {
                                        airductMutation.mutate(mode);
                                        setShowAirductMenu(null);
                                      }}
                                      className={`w-full text-left px-3 py-1.5 text-xs transition-colors flex items-center gap-2 ${
                                        status.airduct_mode === modeId
                                          ? 'text-bambu-green bg-bambu-green/10'
                                          : 'text-white hover:bg-bambu-dark-tertiary'
                                      }`}
                                    >
                                      {mode === 'heating' ? <Flame className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)]" /> : <Snowflake className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)]" />}
                                      {label}
                                    </button>
                                  ))}
                                </div>
                              </>
                            )}
                          </div>
                        );
                      })()}

                      {/* Movement — compact badge, popover holds XY, Z, and home controls */}
                      {(() => {
                        const canControl = hasPermission('printers:control');
                        const disabled = isPrinting || !canControl;
                        const bambuIsPlateBelow = true; // positive Z moves plate away from nozzle
                        const jogButtonClass = 'flex h-8 w-8 items-center justify-center rounded bg-indigo-100 dark:bg-indigo-500/15 text-indigo-700 dark:text-indigo-300 transition-colors hover:bg-indigo-200 dark:hover:bg-indigo-500/30 disabled:cursor-not-allowed disabled:opacity-50';
                        const requestZJog = (direction: 1 | -1) => {
                          const signed = direction * bedJogStep * (bambuIsPlateBelow ? 1 : -1);
                          // The jog never disables the soft endstops (#2579), so it's always
                          // safe: the firmware clamps the move at the travel limit, or refuses
                          // it if the printer isn't homed. No not-homed bypass to gate.
                          bedJogMutation.mutate({ distance: signed });
                        };
                        const requestXyJog = (x: number, y: number) => {
                          xyJogMutation.mutate({ x, y });
                        };
                        const requestExtruderJog = (distance: number) => {
                          extruderJogMutation.mutate(distance);
                        };
                        return (
                          <div className="relative">
                            <button
                              onClick={() => setShowBedJogMenu(showBedJogMenu === printer.id ? null : printer.id)}
                              disabled={disabled}
                              className={`${iconControlClass} ${
                                disabled
                                  ? 'bg-bambu-dark text-bambu-gray/50 cursor-not-allowed'
                                  : 'bg-indigo-50 dark:bg-indigo-500/10 text-indigo-700 dark:text-indigo-400 hover:bg-indigo-500/20'
                              }`}
                              title={!canControl ? t('printers.permission.noControl') : isPrinting ? t('printers.bedJog.disabledWhilePrinting') : t('printers.bedJog.title')}
                            >
                              <Move className="w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)]" />
                            </button>
                            {showBedJogMenu === printer.id && (
                              <>
                                <div className="fixed inset-0 z-40" onClick={() => setShowBedJogMenu(null)} />
                                <div className="absolute bottom-full left-0 mb-1 z-50 flex w-[216px] flex-col overflow-hidden rounded-xl border border-bambu-dark-tertiary bg-bambu-dark-secondary shadow-2xl">
                                  <div className="shrink-0 px-3 py-2.5 text-center text-sm font-medium text-white">
                                    {t('printers.bedJog.title')}
                                  </div>
                                  <div className="h-px bg-bambu-dark-tertiary" />
                                  {/* #2579: Bambu firmware does not enforce soft endstops on
                                      G-code sent over MQTT, so manual moves can drive past the
                                      travel limits and cause a collision. Not fixable from our
                                      side — warn prominently. */}
                                  <div className="flex items-start gap-1.5 bg-yellow-500/10 px-3 py-2 text-[length:var(--pc-t11,11px)] leading-snug text-yellow-700 dark:text-yellow-400">
                                    <AlertTriangle className="mt-0.5 h-3.5 w-3.5 shrink-0" />
                                    <span>{t('printers.bedJog.limitWarning')}</span>
                                  </div>
                                  <div className="h-px bg-bambu-dark-tertiary" />
                                  <div className="flex justify-center px-3 py-2.5">
                                    <div className="flex items-center justify-center gap-3">
                                    <div className="grid grid-cols-3 gap-1">
                                      <div />
                                      <button
                                        onClick={() => requestXyJog(0, bedJogStep)}
                                        disabled={xyJogMutation.isPending}
                                        className={jogButtonClass}
                                        aria-label="Move Y forward"
                                      >
                                        <ArrowUp className="w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)]" />
                                      </button>
                                      <div />
                                      <button
                                        onClick={() => requestXyJog(-bedJogStep, 0)}
                                        disabled={xyJogMutation.isPending}
                                        className={jogButtonClass}
                                        aria-label="Move X left"
                                      >
                                        <ArrowLeft className="w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)]" />
                                      </button>
                                      <button
                                        onClick={() => {
                                          setShowBedJogMenu(null);
                                          homeAxesMutation.mutate('all');
                                        }}
                                        disabled={homeAxesMutation.isPending}
                                        className={jogButtonClass}
                                        aria-label={t('printers.bedJog.homeZ')}
                                      >
                                        <Home className="w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)]" />
                                      </button>
                                      <button
                                        onClick={() => requestXyJog(bedJogStep, 0)}
                                        disabled={xyJogMutation.isPending}
                                        className={jogButtonClass}
                                        aria-label="Move X right"
                                      >
                                        <ArrowRight className="w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)]" />
                                      </button>
                                      <div />
                                      <button
                                        onClick={() => requestXyJog(0, -bedJogStep)}
                                        disabled={xyJogMutation.isPending}
                                        className={jogButtonClass}
                                        aria-label="Move Y back"
                                      >
                                        <ArrowDown className="w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)]" />
                                      </button>
                                      <div />
                                    </div>
                                    <div className="flex flex-col items-center gap-1">
                                      <button
                                        onClick={() => requestZJog(-1)}
                                        disabled={bedJogMutation.isPending}
                                        className={jogButtonClass}
                                        aria-label={t('printers.bedJog.up')}
                                      >
                                        <ArrowUp className="w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)]" />
                                      </button>
                                      <div className="flex h-8 w-8 items-center justify-center text-bambu-gray/80">
                                        <Layers className="w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)]" />
                                      </div>
                                      <button
                                        onClick={() => requestZJog(1)}
                                        disabled={bedJogMutation.isPending}
                                        className={jogButtonClass}
                                        aria-label={t('printers.bedJog.down')}
                                      >
                                        <ArrowDown className="w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)]" />
                                      </button>
                                    </div>
                                    <div className="flex flex-col items-center gap-1">
                                      <button
                                        onClick={() => requestExtruderJog(-bedJogStep)}
                                        disabled={extruderJogMutation.isPending}
                                        className={jogButtonClass}
                                        aria-label="Retract filament"
                                      >
                                        <ArrowUp className="w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)]" />
                                      </button>
                                      <div className="flex h-8 w-8 items-center justify-center text-bambu-gray/80">
                                        <span className="text-sm font-semibold leading-none">E</span>
                                      </div>
                                      <button
                                        onClick={() => requestExtruderJog(bedJogStep)}
                                        disabled={extruderJogMutation.isPending}
                                        className={jogButtonClass}
                                        aria-label="Extrude filament"
                                      >
                                        <ArrowDown className="w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)]" />
                                      </button>
                                    </div>
                                    </div>
                                  </div>
                                  <div className="h-px bg-bambu-dark-tertiary" />
                                  <div className="px-3 pt-2.5 pb-3">
                                    <div className="mb-1 text-[length:var(--pc-t9,9px)] uppercase tracking-wider text-bambu-gray/70">
                                      {t('printers.bedJog.step')}
                                    </div>
                                    <div className="flex gap-1">
                                    {[1, 10, 50].map((step) => (
                                      <button
                                        key={step}
                                        onClick={() => setBedJogStep(step)}
                                        className={`flex-1 px-1 py-1 rounded text-[length:var(--pc-t10,10px)] transition-colors ${
                                          bedJogStep === step
                                            ? 'bg-bambu-green/20 text-bambu-green'
                                            : 'bg-bambu-dark text-bambu-gray hover:bg-bambu-dark-tertiary'
                                        }`}
                                      >
                                        {step}
                                      </button>
                                    ))}
                                    </div>
                                  </div>
                                </div>
                              </>
                            )}
                          </div>
                        );
                      })()}

                      <div className={`inline-flex rounded-lg ${printer.plate_detection_enabled ? 'ring-1 ring-green-500' : ''}`}>
                        <button
                          onClick={handleTogglePlateDetection}
                          disabled={!status.connected || plateDetectionMutation.isPending || !hasPermission('printers:update')}
                          className={`${iconControlClass} rounded-r-none ${
                            printer.plate_detection_enabled
                              ? 'bg-green-50 dark:bg-green-500/10 text-green-700 dark:text-green-400 hover:bg-green-500/20'
                              : 'bg-bambu-dark text-bambu-gray/50 hover:bg-bambu-dark-tertiary hover:text-white'
                          }`}
                          title={!hasPermission('printers:update') ? t('printers.plateDetection.noPermission') : (printer.plate_detection_enabled ? t('printers.plateDetection.enabledClick') : t('printers.plateDetection.disabledClick'))}
                        >
                          {plateDetectionMutation.isPending ? (
                            <Loader2 className="w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)] animate-spin" />
                          ) : (
                            <ScanSearch className="w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)]" />
                          )}
                        </button>
                        <button
                          onClick={handleOpenPlateManagement}
                          disabled={!status.connected || isCheckingPlate || !hasPermission('printers:update')}
                          className={`flex h-8 w-8 items-center justify-center rounded-r-lg border-l border-bambu-dark-tertiary transition-colors disabled:opacity-50 disabled:cursor-not-allowed ${
                            printer.plate_detection_enabled
                              ? 'bg-green-50 dark:bg-green-500/10 text-green-700 dark:text-green-400 hover:bg-green-500/20'
                              : 'bg-bambu-dark text-bambu-gray/50 hover:bg-bambu-dark-tertiary hover:text-white'
                          }`}
                          title={!hasPermission('printers:update') ? t('printers.plateDetection.noPermission') : t('printers.plateDetection.manageCalibration')}
                        >
                          {isCheckingPlate ? (
                            <Loader2 className="w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)] animate-spin" />
                          ) : (
                            <ChevronDown className="w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)]" />
                          )}
                        </button>
                      </div>

                      {/* Print Speed */}
                      {(() => (
                        <div className="relative">
                          <button
                            data-testid="speed-control"
                            onClick={() => setShowSpeedMenu(showSpeedMenu === printer.id ? null : printer.id)}
                            disabled={!isPrinting || !hasPermission('printers:control')}
                            className={`${iconControlClass} ${
                              isPrinting
                                ? 'bg-amber-50 dark:bg-amber-500/10 text-amber-700 dark:text-amber-400 hover:bg-amber-500/20'
                                : 'bg-bambu-dark text-bambu-gray/50 cursor-not-allowed'
                            }`}
                            title={isPrinting ? t('printers.speed.title') : undefined}
                          >
                            <Gauge className="w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)]" />
                          </button>
                          {showSpeedMenu === printer.id && (
                            <>
                              <div className="fixed inset-0 z-40" onClick={() => setShowSpeedMenu(null)} />
                              <div className="absolute bottom-full left-0 mb-1 z-50 bg-bambu-dark-secondary border border-bambu-dark-tertiary rounded-lg shadow-lg py-1 min-w-[130px]">
                                {([
                                  { mode: 1, label: t('printers.speed.silent') },
                                  { mode: 2, label: t('printers.speed.standard') },
                                  { mode: 3, label: t('printers.speed.sport') },
                                  { mode: 4, label: t('printers.speed.ludicrous') },
                                ] as const).map(({ mode, label }) => (
                                  <button
                                    key={mode}
                                    onClick={() => {
                                      printSpeedMutation.mutate(mode);
                                      setShowSpeedMenu(null);
                                    }}
                                    className={`w-full text-left px-3 py-1.5 text-xs transition-colors ${
                                      status.speed_level === mode
                                        ? 'text-bambu-green bg-bambu-green/10'
                                        : 'text-white hover:bg-bambu-dark-tertiary'
                                    }`}
                                  >
                                    {label}
                                  </button>
                                ))}
                              </div>
                            </>
                          )}
                        </div>
                      ))()}

                    </div>

                    {/* Right: Print Control Buttons */}
                    <div className="ml-auto flex items-center justify-end gap-2 flex-shrink-0">
                      {/* Pause/Resume button */}
                      {(() => {
                        const pauseUnavailable = !isPrinting || isControlBusy || !hasPermission('printers:control');
                        return (
                      <button
                        onClick={() => isPaused ? setShowResumeConfirm(true) : setShowPauseConfirm(true)}
                        disabled={pauseUnavailable}
                        className={`
                          ${printControlClass}
                          ${pauseUnavailable
                            ? unavailablePrintActionClass
                            : isPaused
                              ? 'bg-bambu-green/20 text-bambu-green hover:bg-bambu-green/30'
                              : 'bg-yellow-100 dark:bg-yellow-500/20 text-yellow-700 dark:text-yellow-400 hover:bg-yellow-500/30'
                          }
                        `}
                        title={!hasPermission('printers:control') ? t('printers.permission.noControl') : (isPaused ? t('printers.resume') : t('printers.pause'))}
                      >
                        {isPaused ? <Play className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)]" /> : <Pause className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)]" />}
                        {isPaused ? t('printers.resume') : t('printers.pause')}
                      </button>
                        );
                      })()}

                      {/* Stop button */}
                      {(() => {
                        const stopUnavailable = !isPrinting || isControlBusy || !hasPermission('printers:control');
                        return (
                      <button
                        onClick={() => setShowStopConfirm(true)}
                        disabled={stopUnavailable}
                        className={`
                          ${printControlClass}
                          ${stopUnavailable
                            ? unavailablePrintActionClass
                            : 'bg-red-100 dark:bg-red-500/20 text-red-700 dark:text-red-400 hover:bg-red-500/30'
                          }
                        `}
                        title={!hasPermission('printers:control') ? t('printers.permission.noControl') : t('printers.stop')}
                      >
                        <Square className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)]" />
                        {t('printers.stop')}
                      </button>
                        );
                      })()}
                    </div>
                  </div>
                </div>
              );
            })()}

            {/* AMS Units - 2-Column Grid Layout */}
            {(amsData?.length > 0 || status.vt_tray.length > 0) && viewMode === 'expanded' && (() => {
              // Separate regular AMS (4-tray) from HT AMS (1-tray)
              const regularAms = amsData.filter(ams => ams.tray.length > 1);
              const htAms = amsData.filter(ams => ams.tray.length === 1);
              // The external spool can only be hidden while some AMS remains to
              // fill the row (#1782). On an A1 Mini or a bare P1P it is the whole
              // filament section, so the toggle is not offered there and a stored
              // preference from a printer that later lost its AMS cannot blank the
              // row either — both read through canHideExternalSpool.
              const canHideExternalSpool = amsData.length > 0 && status.vt_tray.length > 0;
              const showExternalSpool = !(canHideExternalSpool && externalSpoolHidden);
              const isDualNozzle = printer.nozzle_count === 2 || status?.temperatures?.nozzle_2 !== undefined;
              const bodyScale = CARD_BODY_SCALE[cardSize] ?? 1;
              // Rounded because 11 * 1.2 is 13.200000000000001 in binary
              // floating point, and that lands verbatim in the DOM.
              const scaledRem = (base: number) => `${Math.round(base * bodyScale * 1000) / 1000}rem`;
              // Deliberately NOT scaled with the body (#1848). These AMS cards
              // already grow to fill the row, so the 3.5rem is a floor they sit
              // well above in practice -- raising it just costs a unit its place
              // on the row. Losing one matters: a wrapped AMS-HT is then alone on
              // its line, and flex-grow stretches its single slot across the whole
              // card. The AMS-HT's own width does scale, below, because its
              // readings sit beside the slot rather than under it.
              const slotMinWidth = '3.5rem';
              const filamentSlotStyle: React.CSSProperties = { minWidth: slotMinWidth };
              // The AMS-HT holds a single spool, and its slot is the only thing
              // on that row able to grow -- so it swallowed every spare pixel and
              // shoved the temperature and humidity hard against the card's edge.
              // Capping it at roughly two ordinary slots keeps the readings clear
              // of the edge; the cap scales because the text inside the slot does.
              const htSlotStyle: React.CSSProperties = {
                minWidth: slotMinWidth,
                maxWidth: scaledRem(7.25),
              };
              const slotGridStyle = (columns: number): React.CSSProperties => ({
                gridTemplateColumns: `repeat(${columns}, minmax(${slotMinWidth}, 1fr))`,
              });
              // #1762 (comment 2): while a print is running/paused, overlay a small
              // "P1 / P2 / P3" pill on each slot referenced by the active print's
              // mapping. Catches the reporter's scenario — "any X1C" queue job
              // staged to a printer with mismatched filament: the wrong-slot pill
              // is visible the instant printing starts.
              const isPrintingForMapping = status.state === 'RUNNING' || status.state === 'PAUSE';
              const activeMapping: number[] = isPrintingForMapping && Array.isArray(status.ams_mapping)
                ? status.ams_mapping
                : [];
              const getAmsCardStyle = (slotCount: number): React.CSSProperties => {
                const boundedSlotCount = Math.max(1, slotCount);
                const gapCount = Math.max(0, boundedSlotCount - 1);
                const minWidth = `calc(${boundedSlotCount} * ${slotMinWidth} + ${gapCount} * 0.25rem + 1rem)`;
                return {
                  flex: `1 1 ${minWidth}`,
                  minWidth,
                };
              };

              return (
                <div className="mt-3">
                  {/* Section Header */}
                  <div className="flex items-center gap-2 mb-2">
                    <span className="text-[length:var(--pc-t10,10px)] uppercase tracking-wider text-bambu-gray font-medium">
                      {t('printers.filaments')}
                    </span>
                    <AmsBackupBadge
                      state={status.ams_filament_backup}
                      onClick={() => setAmsBackupModalOpen(true)}
                    />
                    <div className="flex-1 h-[2px] bg-bambu-dark-tertiary" />
                    {/* Offered only when an AMS is present: on a printer that
                        feeds from the external spool alone, hiding it would
                        empty the row entirely (#1782). */}
                    {canHideExternalSpool && (
                      <>
                        <ExternalSpoolToggle
                          hidden={externalSpoolHidden}
                          onClick={toggleExternalSpool}
                        />
                        <div className="w-3 h-[2px] bg-bambu-dark-tertiary" />
                      </>
                    )}
                  </div>

                  {/* AMS Content */}
                  <div className="flex flex-wrap gap-2">
                    {/* Regular AMS units */}
                    {regularAms.map((ams) => {
                      const mappedExtruderId = amsExtruderMap[String(ams.id)];
                      const normalizedId = ams.id >= 128 ? ams.id - 128 : ams.id;
                      const extruderId = mappedExtruderId !== undefined ? mappedExtruderId : normalizedId;
                      const isLeftNozzle = extruderId === 1;
                      const isRightNozzle = extruderId === 0;

                      return (
                        <div key={ams.id} style={getAmsCardStyle(4)} className="min-w-0 p-2 bg-bambu-dark rounded-[10px] space-y-1">
                            {/* Header: Label + Stats (no icon) */}
                            <div className="flex w-full min-h-7 items-center justify-between gap-2 rounded-lg bg-bambu-dark-secondary px-2 py-1">
                              <div className="flex min-w-0 flex-1 items-center gap-1.5">
                                {/* AMS name — hover to see serial, firmware, and edit friendly name */}
                                <AmsNameHoverCard
                                  ams={ams}
                                  printerId={printer.id}
                                  label={getAmsLabel(ams.id, ams.tray.length)}
                                  amsLabels={amsLabels}
                                  canEdit={hasPermission('printers:update')}
                                  onSaved={refetchAmsLabels}
                                >
                                  <span className="block truncate text-[length:var(--pc-t10,10px)] text-white font-medium cursor-default select-none">
                                    {amsLabels?.[ams.id] || getAmsLabel(ams.id, ams.tray.length)}
                                  </span>
                                </AmsNameHoverCard>
                                {isDualNozzle && (isLeftNozzle || isRightNozzle) && (
                                  <NozzleBadge side={isLeftNozzle ? 'L' : 'R'} />
                                )}
                              </div>
                              {(ams.humidity != null || ams.temp != null) && (
                                <div className="flex shrink-0 items-center gap-1.5">
                                  {ams.humidity != null && (
                                    <HumidityIndicator
                                      humidity={ams.humidity}
                                      goodThreshold={amsThresholds?.humidityGood}
                                      fairThreshold={amsThresholds?.humidityFair}
                                      onClick={() => setAmsHistoryModal({
                                        amsId: ams.id,
                                        amsLabel: getAmsLabel(ams.id, ams.tray.length),
                                        mode: 'humidity',
                                      })}
                                      compact
                                    />
                                  )}
                                  {ams.temp != null && (
                                    <div className="mr-1">
                                      <TemperatureIndicator
                                        temp={ams.temp}
                                        goodThreshold={amsThresholds?.tempGood}
                                        fairThreshold={amsThresholds?.tempFair}
                                        onClick={() => setAmsHistoryModal({
                                          amsId: ams.id,
                                          amsLabel: getAmsLabel(ams.id, ams.tray.length),
                                          mode: 'temperature',
                                        })}
                                        compact
                                      />
                                    </div>
                                  )}
                                  {/* Drying button — only for AMS 2 Pro (n3f) and AMS-HT (n3s).
                                      Screen-only models (P1 series) keep the control but can't
                                      be commanded: it stays disabled and says why (#2533). */}
                                  {(status.supports_drying || status.drying_screen_only) && (ams.module_type === 'n3f' || ams.module_type === 'n3s') && hasPermission('printers:control') && (
                                    <button
                                      disabled={status.drying_screen_only || !!(ams.dry_sf_reason?.length && ams.dry_time === 0)}
                                      onClick={(e) => {
                                        if (ams.dry_time > 0) {
                                          stopDryingMutation.mutate(ams.id);
                                        } else if (dryingPopoverAmsId === ams.id) {
                                          setDryingPopoverAmsId(null);
                                        } else {
                                          openDryingPopover(ams, e.currentTarget as HTMLElement);
                                        }
                                      }}
                                      className={`ml-1 flex items-center gap-0.5 px-1 py-0.5 rounded text-[length:var(--pc-t9,9px)] transition-colors ${
                                        ams.dry_time > 0
                                          ? 'bg-amber-100 dark:bg-amber-500/20 text-amber-700 dark:text-amber-400'
                                          : status.drying_screen_only || ams.dry_sf_reason?.length
                                            ? 'bg-bambu-dark text-bambu-gray/50 cursor-not-allowed'
                                            : 'bg-bambu-dark text-bambu-gray hover:text-white hover:bg-bambu-dark/80'
                                      }`}
                                      title={status.drying_screen_only ? t('printers.drying.screenOnly') : ams.dry_time > 0 ? t('printers.drying.stop') : ams.dry_sf_reason?.length ? t(dryingBlockedKey(ams.dry_sf_reason)) : t('printers.drying.start')}
                                    >
                                      <Flame className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)]" />
                                    </button>
                                  )}
                                </div>
                              )}
                            </div>
                            {/* Drying status bar */}
                            {ams.dry_time > 0 && (
                              <div className="flex items-center gap-2 rounded-lg bg-amber-50 dark:bg-amber-500/10 px-2 py-1 text-[length:var(--pc-t9,9px)]">
                                <Flame className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)] text-amber-600 dark:text-amber-400 shrink-0" />
                                <span className="text-amber-700 dark:text-amber-400 font-medium">{t('printers.drying.active')}</span>
                                {/* The temperature is only ever known from the target we
                                    cached when sending the command — the filament can also
                                    be read off a uniformly loaded unit, so it can outlive
                                    the temperature (#2759). */}
                                {ams.dry_filament && (
                                  <span className="text-amber-700/80 dark:text-amber-300/70">
                                    {ams.dry_target_temp != null
                                      ? t('printers.drying.targetSummary', { filament: ams.dry_filament, temp: ams.dry_target_temp })
                                      : ams.dry_filament}
                                  </span>
                                )}
                                <span className="text-amber-700/80 dark:text-amber-300/70">
                                  {t('printers.drying.timeRemaining', {
                                    time: ams.dry_time >= 60
                                      ? `${Math.floor(ams.dry_time / 60)}h ${ams.dry_time % 60}m`
                                      : `${ams.dry_time}m`
                                  })}
                                </span>
                                {/* A cycle on a screen-only model was started at the printer
                                    and can only be stopped there (#2533). */}
                                {!status.drying_screen_only && (
                                  <button
                                    onClick={() => stopDryingMutation.mutate(ams.id)}
                                    disabled={stopDryingMutation.isPending}
                                    className="ml-auto text-amber-700 dark:text-amber-400 hover:text-amber-900 dark:hover:text-amber-300 transition-colors disabled:opacity-50"
                                    title={t('printers.drying.stop')}
                                  >
                                    <X className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)]" />
                                  </button>
                                )}
                              </div>
                            )}
                            {/* Slots grid: 4 columns - always render 4 slots */}
                            <div className="grid w-full gap-1" style={slotGridStyle(4)}>
                              {[0, 1, 2, 3].map((slotIdx) => {
                                // Find tray data for this slot (may be undefined if data incomplete)
                                // Use array index if available, as tray.id may not always be set
                                const tray = ams.tray[slotIdx] || ams.tray.find(t => t.id === slotIdx);
                                const hasFillLevel = tray?.tray_type && tray.remain >= 0;
                                const isEmpty = !tray?.tray_type;
                                const emptyKind = getEmptySlotKind(tray);
                                // Check if this is the currently loaded tray
                                // Global tray ID = ams.id * 4 + slot index (for standard AMS)
                                const globalTrayId = ams.id * 4 + slotIdx;
                                const isActive = effectiveTrayNow === globalTrayId;
                                // Runout guidance (#2587): the slot the paused print now
                                // expects filament in, and the slot that ran out.
                                const isExpectedSlot = expectedTray !== null && expectedTray === globalTrayId;
                                const isRanOutSlot = previousTray !== null && previousTray === globalTrayId;
                                // Get cloud preset info if available
                                const cloudInfo = tray?.tray_info_idx ? filamentInfo?.[tray.tray_info_idx] : null;
                                // Get saved slot preset mapping (for user-configured slots)
                                const slotPreset = slotPresets?.[globalTrayId];

                                // Fill level fallback chain: Spoolman → Inventory → AMS remain
                                const trayTag = (tray?.tray_uuid || tray?.tag_uid || getFallbackSpoolTag(printer.serial_number, ams.id, slotIdx))?.toUpperCase();
                                const linkedSpool = trayTag ? linkedSpools?.[trayTag] : undefined;
                                const spoolmanFill = getSpoolmanFillLevel(linkedSpool);
                                // Slot-assigned-only spool fill (no tag link required)
                                const slotAssignmentForFill = spoolmanEnabled && !spoolmanLoading
                                  ? spoolmanSlotAssignments?.find(a => a.printer_id === printer.id && a.ams_id === ams.id && a.tray_id === slotIdx)
                                  : undefined;
                                const slotSpoolForFill = slotAssignmentForFill
                                  ? spoolmanSpools?.find(s => s.id === slotAssignmentForFill.spoolman_spool_id)
                                  : undefined;
                                const slotSpoolFill = (slotSpoolForFill && (slotSpoolForFill.label_weight ?? 0) > 0)
                                  ? Math.round(Math.max(0, (slotSpoolForFill.label_weight ?? 0) - slotSpoolForFill.weight_used) / (slotSpoolForFill.label_weight ?? 1) * 100)
                                  : null;
                                const inventoryAssignment = onGetAssignment?.(printer.id, ams.id, slotIdx);
                                const inventoryFill = (() => {
                                  const sp = inventoryAssignment?.spool;
                                  if (sp && sp.label_weight > 0 && sp.weight_used != null) {
                                    return Math.round(Math.max(0, sp.label_weight - sp.weight_used) / sp.label_weight * 100);
                                  }
                                  return null;
                                })();
                                // If inventory says 0% but AMS reports positive remain, prefer AMS
                                // (inventory weight_used may be stale or over-counted — #676)
                                const resolvedInventoryFill = (inventoryFill === 0 && hasFillLevel && tray.remain > 0)
                                  ? null : inventoryFill;
                                const effectiveFill = spoolmanFill ?? slotSpoolFill ?? resolvedInventoryFill ?? (hasFillLevel ? tray.remain : null);
                                const fillSource = (spoolmanFill !== null || slotSpoolFill !== null) ? 'spoolman' as const
                                  : resolvedInventoryFill !== null ? 'inventory' as const
                                  : hasFillLevel ? 'ams' as const
                                  : undefined;

                                // Build filament data for hover card
                                const filamentData = tray?.tray_type ? {
                                  vendor: (isBambuLabSpool(tray) ? 'Bambu Lab' : 'Generic') as 'Bambu Lab' | 'Generic',
                                  // Spoolman spool name wins over cloud lookup so a slot bound to
                                  // a Spoolman spool shows that spool's preset name (e.g. "Devil
                                  // Design PLA") instead of whatever the printer's filament_id
                                  // resolves to in the cloud catalog (often "Generic PLA" for
                                  // P-prefix local presets). Spoolman's filament.name is just the
                                  // material+subtype ("PLA Basic"); prepend the spool's brand so
                                  // the hover card shows "Devil Design PLA Basic" rather than the
                                  // vendor-less form. Strip the "@<printer>..." suffix that
                                  // BambuStudio appends to user-preset names.
                                  profile: slotPreset?.preset_name || (slotSpoolForFill ? [slotSpoolForFill.brand, slotSpoolForFill.slicer_filament_name?.split('@')[0].trim() || slotSpoolForFill.material].filter(Boolean).join(' ').trim() : null) || inventoryAssignment?.spool?.slicer_filament_name || cloudInfo?.name || tray.tray_sub_brands || tray.tray_type,
                                  colorName: getColorName(tray.tray_color || ''),
                                  colorHex: tray.tray_color || null,
                                  kFactor: formatKValue(tray.k),
                                  fillLevel: effectiveFill,
                                  trayUuid: tray.tray_uuid || null,
                                  tagUid: tray.tag_uid || null,
                                  fillSource,
                                } : null;

                                // Check if this specific slot is being refreshed
                                const isRefreshing = refreshingSlot?.amsId === ams.id &&
                                  refreshingSlot?.slotId === slotIdx;

                                // #1762 (comment 2): which print-slot is mapped to THIS AMS slot.
                                const activePrintSlotIdx = activeMapping.indexOf(globalTrayId);
                                const activePrintSlotLabel = activePrintSlotIdx >= 0
                                  ? `P${activePrintSlotIdx + 1}`
                                  : null;
                                // Slot visual content (goes inside hover card)
                                const slotVisual = (
                                  <div
                                    className={`relative w-full bg-bambu-dark-secondary rounded-lg p-1 text-center ${isEmpty ? 'opacity-50' : ''} ${
                                      isExpectedSlot
                                        ? 'ring-2 ring-amber-400 ring-offset-1 ring-offset-bambu-dark animate-pulse'
                                        : isRanOutSlot
                                          ? 'ring-2 ring-red-500/60 ring-offset-1 ring-offset-bambu-dark'
                                          : isActive
                                            ? 'ring-2 ring-bambu-green ring-offset-1 ring-offset-bambu-dark'
                                            : ''
                                    }`}
                                  >
                                    {isExpectedSlot && (
                                      <span
                                        aria-label={t('printers.expectedSlot.ariaLabel', { n: slotIdx + 1 })}
                                        title={t('printers.expectedSlot.title')}
                                        className="absolute top-0.5 left-0.5 px-1 py-px text-[length:var(--pc-t8,8px)] font-bold text-bambu-dark bg-amber-400 rounded pointer-events-none leading-none"
                                      >
                                        ↓
                                      </span>
                                    )}
                                    {activePrintSlotLabel && (
                                      <span
                                        aria-label={t('printers.activeJobSlot.ariaLabel', { n: activePrintSlotIdx + 1 })}
                                        title={t('printers.activeJobSlot.title', { n: activePrintSlotIdx + 1 })}
                                        className="absolute top-0.5 right-0.5 px-1 py-px text-[length:var(--pc-t8,8px)] font-bold text-bambu-dark bg-bambu-green rounded pointer-events-none leading-none"
                                      >
                                        {activePrintSlotLabel}
                                      </span>
                                    )}
                                    {/* Filament color circle with 1-based slot number centered inside */}
                                    <FilamentSlotCircle
                                      trayColor={tray?.tray_color}
                                      trayType={tray?.tray_type}
                                      isEmpty={isEmpty}
                                      emptyKind={emptyKind}
                                      slotNumber={slotIdx + 1}
                                    />
                                    <div className="text-[length:var(--pc-t9,9px)] text-white font-bold truncate">
                                      {tray?.tray_type || t(emptyKind === 'reset' ? 'ams.slotUnconfigured' : 'ams.slotEmpty')}
                                    </div>
                                    {/* Fill bar */}
                                    <div className="mt-1 h-1.5 bg-black/30 rounded-full overflow-hidden">
                                      {effectiveFill !== null && effectiveFill >= 0 && !isEmpty && tray && (
                                        <div
                                          className="h-full rounded-full transition-all"
                                          style={{
                                            width: `${effectiveFill}%`,
                                            backgroundColor: getFillBarColor(effectiveFill),
                                          }}
                                        />
                                      )}
                                    </div>
                                  </div>
                                );

                                // Wrapper with menu button, dropdown, and loading overlay (outside hover card)
                                return (
                                  <div key={slotIdx} className="relative group w-full" style={filamentSlotStyle}>
                                    {/* Loading overlay during RFID re-read */}
                                    {isRefreshing && (
                                      <div className="absolute inset-0 bg-bambu-dark-tertiary/80 rounded flex items-center justify-center z-20">
                                        <RefreshCw className="w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)] text-bambu-green animate-spin" />
                                      </div>
                                    )}
                                    {/* Hover card wraps only the visual content */}
                                    {filamentData ? (
                                      <FilamentHoverCard
                                        data={filamentData}
                                        actions={renderAmsSlotActions({
                                          amsId: ams.id,
                                          slotId: slotIdx,
                                          loadTrayId: ams.id * 4 + slotIdx,
                                          isRefreshing,
                                        })}
                                        spoolman={{
                                          enabled: spoolmanEnabled,
                                          // #1457: slot assignment is the user's most explicit action — it must
                                          // outrank the tag-link, which can be stale when a non-RFID slot's
                                          // fallback tag is still attached to a previous spool in Spoolman.
                                          linkedSpoolId: slotAssignmentForFill?.spoolman_spool_id
                                            ?? (trayTag ? linkedSpools?.[trayTag]?.id : undefined),
                                          spoolmanUrl,
                                          syncMode: spoolmanSyncMode,
                                          // Suppress Link button when slot is already occupied by ANY assignment
                                          // (Spoolman SlotAssignment OR local SpoolAssignment). Phase 9 only
                                          // suppressed for Spoolman; the maintainer screenshot shows the badge
                                          // still appearing on slots with a local Devil Design PLA assigned.
                                          onLinkSpool: (spoolmanEnabled && !slotAssignmentForFill && !inventoryAssignment) ? () => {
                                            const linkTag = (filamentData.trayUuid || filamentData.tagUid || getFallbackSpoolTag(printer.serial_number, ams.id, slotIdx)).toUpperCase();
                                            setLinkSpoolModal({
                                              tagUid: filamentData.tagUid || linkTag,
                                              trayUuid: filamentData.trayUuid || '',
                                              printerId: printer.id,
                                              amsId: ams.id,
                                              trayId: slotIdx,
                                            });
                                          } : undefined,
                                          onUnlinkSpool: linkedSpool?.id ? () => unlinkSpoolMutation.mutate(linkedSpool.id) : undefined,
                                        }}
                                        inventory={(() => {
                                          if (spoolmanEnabled) {
                                            if (spoolmanLoading) return undefined;
                                            const slotAssignment = slotAssignmentForFill;
                                            const spoolmanSpool = slotSpoolForFill;
                                            return {
                                              assignedSpool: spoolmanSpool ? {
                                                id: spoolmanSpool.id,
                                                material: spoolmanSpool.material,
                                                brand: spoolmanSpool.brand ?? null,
                                                color_name: spoolmanSpool.color_name ?? null,
                                                remainingWeightGrams: spoolmanSpool.label_weight
                                                  ? Math.max(0, Math.round(spoolmanSpool.label_weight - spoolmanSpool.weight_used))
                                                  : undefined,
                                              } : null,
                                              onAssignSpool: () => setAssignSpoolModal({
                                                printerId: printer.id,
                                                amsId: ams.id,
                                                trayId: slotIdx,
                                                trayInfo: {
                                                  type: tray?.tray_type || filamentData.profile,
                                                  material: tray?.tray_type ?? undefined,
                                                  profile: filamentData.profile,
                                                  color: filamentData.colorHex || '',
                                                  location: `${getAmsLabel(ams.id, ams.tray.length)} Slot ${slotIdx + 1}`,
                                                },
                                              }),
                                              onUnassignSpool: (spoolmanSpool && !isBambuLabSpool(tray)) ? () => onUnassignSpoolmanSpool?.(spoolmanSpool.id) : undefined,
                                              isAssigned: !!slotAssignment || isBambuLabSpool(tray),
                                            };
                                          }
                                          const assignment = onGetAssignment?.(printer.id, ams.id, slotIdx);
                                          return {
                                            assignedSpool: assignment?.spool ? {
                                              id: assignment.spool.id,
                                              material: assignment.spool.material,
                                              brand: assignment.spool.brand,
                                              color_name: assignment.spool.color_name,
                                              remainingWeightGrams: Math.max(0, Math.round(assignment.spool.label_weight - assignment.spool.weight_used)),
                                            } : null,
                                            onAssignSpool: () => setAssignSpoolModal({
                                              printerId: printer.id,
                                              amsId: ams.id,
                                              trayId: slotIdx,
                                              trayInfo: {
                                                type: tray?.tray_type || filamentData.profile,
                                                material: tray?.tray_type ?? undefined,
                                                profile: filamentData.profile,
                                                color: filamentData.colorHex || '',
                                                location: `${getAmsLabel(ams.id, ams.tray.length)} Slot ${slotIdx + 1}`,
                                              },
                                            }),
                                            onUnassignSpool: (assignment && !isBambuLabSpool(tray)) ? () => onUnassignSpool?.(printer.id, ams.id, slotIdx) : undefined,
                                            isAssigned: !!assignment || isBambuLabSpool(tray),
                                          };
                                        })()}
                                        configureSlot={{
                                          enabled: hasPermission('printers:control'),
                                          onConfigure: () => setConfigureSlotModal({
                                            amsId: ams.id,
                                            trayId: slotIdx,
                                            trayCount: ams.tray.length,
                                            trayType: tray?.tray_type || undefined,
                                            trayColor: tray?.tray_color || undefined,
                                            traySubBrands: tray?.tray_sub_brands || undefined,
                                            trayInfoIdx: tray?.tray_info_idx || undefined,
                                            extruderId: mappedExtruderId,
                                            caliIdx: tray?.cali_idx,
                                            savedPresetId: slotPreset?.preset_id,
                                          }),
                                        }}
                                      >
                                        {slotVisual}
                                      </FilamentHoverCard>
                                    ) : (
                                      <EmptySlotHoverCard
                                        kind={emptyKind ?? undefined}
                                        actions={renderAmsSlotActions({
                                          amsId: ams.id,
                                          slotId: slotIdx,
                                          loadTrayId: ams.id * 4 + slotIdx,
                                          isRefreshing,
                                        })}
                                        configureSlot={{
                                          enabled: hasPermission('printers:control'),
                                          onConfigure: () => setConfigureSlotModal({
                                            amsId: ams.id,
                                            trayId: slotIdx,
                                            trayCount: ams.tray.length,
                                            extruderId: mappedExtruderId,
                                          }),
                                        }}
                                        onAssignSpool={() => setAssignSpoolModal({
                                          printerId: printer.id,
                                          amsId: ams.id,
                                          trayId: slotIdx,
                                          trayInfo: {
                                            type: '',
                                            material: undefined,
                                            profile: '',
                                            color: '',
                                            location: `${getAmsLabel(ams.id, ams.tray.length)} Slot ${slotIdx + 1}`,
                                          },
                                        })}
                                      >
                                        {slotVisual}
                                      </EmptySlotHoverCard>
                                    )}
                                  </div>
                                );
                              })}
                            </div>
                        </div>
                      );
                    })}
                    {/* HT AMS units */}
                    {htAms.map((ams) => {
                      const mappedExtruderId = amsExtruderMap[String(ams.id)];
                      const normalizedId = ams.id >= 128 ? ams.id - 128 : ams.id;
                      const extruderId = mappedExtruderId !== undefined ? mappedExtruderId : normalizedId;
                      const isLeftNozzle = extruderId === 1;
                      const isRightNozzle = extruderId === 0;
                      const tray = ams.tray[0];
                      const hasFillLevel = tray?.tray_type && tray.remain >= 0;
                      const isEmpty = !tray?.tray_type;
                      const emptyKind = getEmptySlotKind(tray);
                      // Check if this is the currently loaded tray
                      const globalTrayId = getGlobalTrayId(ams.id, tray?.id ?? 0, false);
                      const isActive = effectiveTrayNow === globalTrayId;
                      // Runout guidance (#2587): expected / ran-out slot on this HT unit.
                      const isExpectedSlot = expectedTray !== null && expectedTray === globalTrayId;
                      const isRanOutSlot = previousTray !== null && previousTray === globalTrayId;
                      // Get cloud preset info if available
                      const cloudInfo = tray?.tray_info_idx ? filamentInfo?.[tray.tray_info_idx] : null;
                      // Get saved slot preset mapping (for user-configured slots)
                      const slotPreset = slotPresets?.[globalTrayId];
                      const htSlotId = tray?.id ?? 0;

                        // Fill level fallback chain: Spoolman → Inventory → AMS remain
                        const htTrayTag = (tray?.tray_uuid || tray?.tag_uid || getFallbackSpoolTag(printer.serial_number, ams.id, htSlotId))?.toUpperCase();
                        const htLinkedSpool = htTrayTag ? linkedSpools?.[htTrayTag] : undefined;
                        const htSpoolmanFill = getSpoolmanFillLevel(htLinkedSpool);
                        const htInventoryAssignment = onGetAssignment?.(printer.id, ams.id, htSlotId);
                        const htInventoryFill = (() => {
                          const sp = htInventoryAssignment?.spool;
                          if (sp && sp.label_weight > 0 && sp.weight_used != null) {
                            return Math.round(Math.max(0, sp.label_weight - sp.weight_used) / sp.label_weight * 100);
                          }
                          return null;
                        })();
                        // If inventory says 0% but AMS reports positive remain, prefer AMS (#676)
                        const htResolvedInventoryFill = (htInventoryFill === 0 && hasFillLevel && tray.remain > 0)
                          ? null : htInventoryFill;
                        // Slot-assigned-only fill (when spool has no NFC tag but is slot-assigned)
                        const htSlotAssignmentForFill = spoolmanEnabled && !spoolmanLoading
                          ? spoolmanSlotAssignments?.find(a => a.printer_id === printer.id && a.ams_id === ams.id && a.tray_id === htSlotId)
                          : undefined;
                        const htSlotSpoolForFill = htSlotAssignmentForFill
                          ? spoolmanSpools?.find(s => s.id === htSlotAssignmentForFill.spoolman_spool_id)
                          : undefined;
                        const htSlotSpoolFill = (htSlotSpoolForFill && (htSlotSpoolForFill.label_weight ?? 0) > 0)
                          ? Math.round(Math.max(0, (htSlotSpoolForFill.label_weight ?? 0) - htSlotSpoolForFill.weight_used) / (htSlotSpoolForFill.label_weight ?? 1) * 100)
                          : null;
                        const htEffectiveFill = htSpoolmanFill ?? htSlotSpoolFill ?? htResolvedInventoryFill ?? (hasFillLevel ? tray.remain : null);
                        const htFillSource = (htSpoolmanFill !== null || htSlotSpoolFill !== null) ? 'spoolman' as const
                          : htResolvedInventoryFill !== null ? 'inventory' as const
                          : hasFillLevel ? 'ams' as const
                          : undefined;

                        // Build filament data for hover card
                        const filamentData = tray?.tray_type ? {
                          vendor: (isBambuLabSpool(tray) ? 'Bambu Lab' : 'Generic') as 'Bambu Lab' | 'Generic',
                          profile: slotPreset?.preset_name || (htSlotSpoolForFill ? [htSlotSpoolForFill.brand, htSlotSpoolForFill.slicer_filament_name?.split('@')[0].trim() || htSlotSpoolForFill.material].filter(Boolean).join(' ').trim() : null) || htInventoryAssignment?.spool?.slicer_filament_name || cloudInfo?.name || tray.tray_sub_brands || tray.tray_type,
                          colorName: getColorName(tray.tray_color || ''),
                          colorHex: tray.tray_color || null,
                          kFactor: formatKValue(tray.k),
                          fillLevel: htEffectiveFill,
                          trayUuid: tray.tray_uuid || null,
                          tagUid: tray.tag_uid || null,
                          fillSource: htFillSource,
                        } : null;

                        // Check if this specific slot is being refreshed
                        const isHtRefreshing = refreshingSlot?.amsId === ams.id &&
                          refreshingSlot?.slotId === htSlotId;

                        // #1762 (comment 2): active print-slot index for this HT slot.
                        const htActivePrintSlotIdx = activeMapping.indexOf(globalTrayId);
                        const htActivePrintSlotLabel = htActivePrintSlotIdx >= 0
                          ? `P${htActivePrintSlotIdx + 1}`
                          : null;
                        // Slot visual content (goes inside hover card)
                        const slotVisual = (
                          <div
                            className={`relative w-full bg-bambu-dark-secondary rounded-lg p-1 text-center ${isEmpty ? 'opacity-50' : ''} ${
                              isExpectedSlot
                                ? 'ring-2 ring-amber-400 ring-offset-1 ring-offset-bambu-dark animate-pulse'
                                : isRanOutSlot
                                  ? 'ring-2 ring-red-500/60 ring-offset-1 ring-offset-bambu-dark'
                                  : isActive
                                    ? 'ring-2 ring-bambu-green ring-offset-1 ring-offset-bambu-dark'
                                    : ''
                            }`}
                          >
                            {isExpectedSlot && (
                              <span
                                aria-label={t('printers.expectedSlot.ariaLabel', { n: 1 })}
                                title={t('printers.expectedSlot.title')}
                                className="absolute top-0.5 left-0.5 px-1 py-px text-[length:var(--pc-t8,8px)] font-bold text-bambu-dark bg-amber-400 rounded pointer-events-none leading-none"
                              >
                                ↓
                              </span>
                            )}
                            {htActivePrintSlotLabel && (
                              <span
                                aria-label={t('printers.activeJobSlot.ariaLabel', { n: htActivePrintSlotIdx + 1 })}
                                title={t('printers.activeJobSlot.title', { n: htActivePrintSlotIdx + 1 })}
                                className="absolute top-0.5 right-0.5 px-1 py-px text-[length:var(--pc-t8,8px)] font-bold text-bambu-dark bg-bambu-green rounded pointer-events-none leading-none"
                              >
                                {htActivePrintSlotLabel}
                              </span>
                            )}
                            {/* Filament color circle with 1-based slot number centered inside */}
                            <FilamentSlotCircle
                              trayColor={tray?.tray_color}
                              trayType={tray?.tray_type}
                              isEmpty={isEmpty}
                              emptyKind={emptyKind}
                              slotNumber={1}
                            />
                            <div className="text-[length:var(--pc-t9,9px)] text-white font-bold truncate">
                              {tray?.tray_type || t(emptyKind === 'reset' ? 'ams.slotUnconfigured' : 'ams.slotEmpty')}
                            </div>
                            {/* Fill bar */}
                            <div className="mt-1 h-1.5 bg-black/30 rounded-full overflow-hidden">
                              {htEffectiveFill !== null && htEffectiveFill >= 0 && !isEmpty && (
                                <div
                                  className="h-full rounded-full transition-all"
                                  style={{
                                    width: `${htEffectiveFill}%`,
                                    backgroundColor: getFillBarColor(htEffectiveFill),
                                  }}
                                />
                              )}
                            </div>
                          </div>
                        );

                        // HT cards lay out slot + stats side-by-side in Row 2 (not stats-in-header
                        // like regular AMS), so they need more horizontal room than a 1-slot basis.
                        // Without this override, the L view squishes HT into a sliver next to the
                        // 4-slot AMS neighbors.
                        // 11rem holds one slot plus the temperature/humidity
                        // column beside it; both grow with the body scale.
                        const htCardWidth = scaledRem(11);
                        const htCardStyle: React.CSSProperties = {
                          flex: `1 1 ${htCardWidth}`,
                          minWidth: htCardWidth,
                          // An AMS-HT is never wider than a full AMS. Without a
                          // ceiling, a unit that wraps onto a line of its own is
                          // the only flex item there and grow stretches its single
                          // slot across the entire card, leaving the readings
                          // stranded at the far edge.
                          maxWidth: `calc(4 * ${slotMinWidth} + 3 * 0.25rem + 1rem)`,
                        };
                        return (
                          <div key={ams.id} style={htCardStyle} className="min-w-0 p-2 bg-bambu-dark rounded-[10px] space-y-1">
                            {/* Row 1: Label + Nozzle + Drying */}
                            <div className="flex w-full min-h-7 items-center gap-1.5 rounded-lg bg-bambu-dark-secondary px-2 py-1">
                              {/* AMS name — hover to see serial, firmware, and edit friendly name */}
                              <div className="flex min-w-0 flex-1 items-center gap-1.5">
                                <AmsNameHoverCard
                                  ams={ams}
                                  printerId={printer.id}
                                  label={getAmsLabel(ams.id, ams.tray.length)}
                                  amsLabels={amsLabels}
                                  canEdit={hasPermission('printers:update')}
                                  onSaved={refetchAmsLabels}
                                >
                                  <span className="block truncate text-[length:var(--pc-t10,10px)] text-white font-medium cursor-default select-none">
                                    {amsLabels?.[ams.id] || getAmsLabel(ams.id, ams.tray.length)}
                                  </span>
                                </AmsNameHoverCard>
                                {isDualNozzle && (isLeftNozzle || isRightNozzle) && (
                                  <NozzleBadge side={isLeftNozzle ? 'L' : 'R'} />
                                )}
                              </div>
                              {/* Drying button for HT AMS */}
                              {(status.supports_drying || status.drying_screen_only) && (ams.module_type === 'n3f' || ams.module_type === 'n3s') && hasPermission('printers:control') && (
                                <div className="relative ml-auto">
                                  <button
                                    disabled={status.drying_screen_only}
                                    onClick={(e) => {
                                      if (ams.dry_time > 0) {
                                        stopDryingMutation.mutate(ams.id);
                                      } else if (dryingPopoverAmsId === ams.id) {
                                        setDryingPopoverAmsId(null);
                                      } else {
                                        openDryingPopover(ams, e.currentTarget as HTMLElement);
                                      }
                                    }}
                                    className={`flex items-center gap-0.5 px-1 py-0.5 rounded text-[length:var(--pc-t9,9px)] transition-colors ${
                                      ams.dry_time > 0
                                        ? 'bg-amber-100 dark:bg-amber-500/20 text-amber-700 dark:text-amber-400'
                                        : status.drying_screen_only
                                          ? 'bg-bambu-dark text-bambu-gray/50 cursor-not-allowed'
                                          : 'bg-bambu-dark text-bambu-gray hover:text-white hover:bg-bambu-dark/80'
                                    }`}
                                    title={status.drying_screen_only ? t('printers.drying.screenOnly') : ams.dry_time > 0 ? t('printers.drying.stop') : t('printers.drying.start')}
                                  >
                                    <Flame className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)]" />
                                  </button>
                                </div>
                              )}
                            </div>
                            {/* HT AMS drying status bar */}
                            {ams.dry_time > 0 && (
                              <div className="flex items-center gap-1.5 overflow-hidden whitespace-nowrap rounded-lg bg-amber-50 dark:bg-amber-500/10 px-2 py-1 text-[length:var(--pc-t9,9px)]">
                                <Flame className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)] text-amber-600 dark:text-amber-400 shrink-0" />
                                {ams.dry_filament && (
                                  <span className="text-amber-700/80 dark:text-amber-300/70 text-[length:var(--pc-t8,8px)] truncate">
                                    {ams.dry_target_temp != null
                                      ? t('printers.drying.targetSummary', { filament: ams.dry_filament, temp: ams.dry_target_temp })
                                      : ams.dry_filament}
                                  </span>
                                )}
                                <span className="text-amber-700/80 dark:text-amber-300/70 text-[length:var(--pc-t8,8px)] truncate">
                                  {ams.dry_time >= 60
                                    ? `${Math.floor(ams.dry_time / 60)}h ${ams.dry_time % 60}m`
                                    : `${ams.dry_time}m`}
                                </span>
                                {!status.drying_screen_only && (
                                  <button
                                    onClick={() => stopDryingMutation.mutate(ams.id)}
                                    disabled={stopDryingMutation.isPending}
                                    className="ml-auto text-amber-700 dark:text-amber-400 hover:text-amber-900 dark:hover:text-amber-300 transition-colors disabled:opacity-50 shrink-0"
                                    title={t('printers.drying.stop')}
                                  >
                                    <X className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)]" />
                                  </button>
                                )}
                              </div>
                            )}
                            {/* Row 2: Slot (left) + Stats (right stacked) */}
                            <div className="flex gap-1.5 max-[550px]:flex-col max-[550px]:items-start">
                              {/* Slot wrapper with loading overlay */}
                              <div className="relative group flex-1" style={htSlotStyle}>
                                {/* Loading overlay during RFID re-read */}
                                {isHtRefreshing && (
                                  <div className="absolute inset-0 bg-bambu-dark-tertiary/80 rounded flex items-center justify-center z-20">
                                    <RefreshCw className="w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)] text-bambu-green animate-spin" />
                                  </div>
                                )}
                                {/* Hover card wraps only the visual content */}
                                {filamentData ? (
                                  <FilamentHoverCard
                                    data={filamentData}
                                    actions={renderAmsSlotActions({
                                      amsId: ams.id,
                                      slotId: htSlotId,
                                      loadTrayId: ams.id * 4 + htSlotId,
                                      isRefreshing: isHtRefreshing,
                                    })}
                                    spoolman={{
                                      enabled: spoolmanEnabled,
                                      // #1457: slot assignment outranks tag-link (see top-level slot block).
                                      linkedSpoolId: htSlotAssignmentForFill?.spoolman_spool_id
                                        ?? (htTrayTag ? linkedSpools?.[htTrayTag]?.id : undefined),
                                      spoolmanUrl,
                                      syncMode: spoolmanSyncMode,
                                      // Suppress Link button when slot is occupied by ANY assignment (Phase 13 P13-6d)
                                      onLinkSpool: (spoolmanEnabled && !htSlotAssignmentForFill && !htInventoryAssignment) ? () => {
                                        const linkTag = (filamentData.trayUuid || filamentData.tagUid || getFallbackSpoolTag(printer.serial_number, ams.id, htSlotId)).toUpperCase();
                                        setLinkSpoolModal({
                                          tagUid: filamentData.tagUid || linkTag,
                                          trayUuid: filamentData.trayUuid || '',
                                          printerId: printer.id,
                                          amsId: ams.id,
                                          trayId: htSlotId,
                                        });
                                      } : undefined,
                                      onUnlinkSpool: htLinkedSpool?.id ? () => unlinkSpoolMutation.mutate(htLinkedSpool.id) : undefined,
                                    }}
                                    inventory={(() => {
                                      if (spoolmanEnabled) {
                                        if (spoolmanLoading) return undefined;
                                        const slotAssignment = htSlotAssignmentForFill;
                                        const spoolmanSpool = htSlotSpoolForFill;
                                        return {
                                          assignedSpool: spoolmanSpool ? {
                                            id: spoolmanSpool.id,
                                            material: spoolmanSpool.material,
                                            brand: spoolmanSpool.brand ?? null,
                                            color_name: spoolmanSpool.color_name ?? null,
                                            remainingWeightGrams: spoolmanSpool.label_weight
                                              ? Math.max(0, Math.round(spoolmanSpool.label_weight - spoolmanSpool.weight_used))
                                              : undefined,
                                          } : null,
                                          onAssignSpool: () => setAssignSpoolModal({
                                            printerId: printer.id,
                                            amsId: ams.id,
                                            trayId: htSlotId,
                                            trayInfo: {
                                              type: tray?.tray_type || filamentData.profile,
                                              material: tray?.tray_type ?? undefined,
                                              profile: filamentData.profile,
                                              color: filamentData.colorHex || '',
                                              location: getAmsLabel(ams.id, ams.tray.length),
                                            },
                                          }),
                                          onUnassignSpool: (spoolmanSpool && !isBambuLabSpool(tray)) ? () => onUnassignSpoolmanSpool?.(spoolmanSpool.id) : undefined,
                                          isAssigned: !!slotAssignment || isBambuLabSpool(tray),
                                        };
                                      }
                                      const assignment = onGetAssignment?.(printer.id, ams.id, htSlotId);
                                      return {
                                        assignedSpool: assignment?.spool ? {
                                          id: assignment.spool.id,
                                          material: assignment.spool.material,
                                          brand: assignment.spool.brand,
                                          color_name: assignment.spool.color_name,
                                          remainingWeightGrams: Math.max(0, Math.round(assignment.spool.label_weight - assignment.spool.weight_used)),
                                        } : null,
                                        onAssignSpool: () => setAssignSpoolModal({
                                          printerId: printer.id,
                                          amsId: ams.id,
                                          trayId: htSlotId,
                                          trayInfo: {
                                            type: tray?.tray_type || filamentData.profile,
                                            material: tray?.tray_type ?? undefined,
                                            profile: filamentData.profile,
                                            color: filamentData.colorHex || '',
                                            location: getAmsLabel(ams.id, ams.tray.length),
                                          },
                                        }),
                                        onUnassignSpool: (assignment && !isBambuLabSpool(tray)) ? () => onUnassignSpool?.(printer.id, ams.id, htSlotId) : undefined,
                                        isAssigned: !!assignment || isBambuLabSpool(tray),
                                      };
                                    })()}
                                    configureSlot={{
                                      enabled: hasPermission('printers:control'),
                                      onConfigure: () => setConfigureSlotModal({
                                        amsId: ams.id,
                                        trayId: htSlotId,
                                        trayCount: ams.tray.length,
                                        trayType: tray?.tray_type || undefined,
                                        trayColor: tray?.tray_color || undefined,
                                        traySubBrands: tray?.tray_sub_brands || undefined,
                                        trayInfoIdx: tray?.tray_info_idx || undefined,
                                        extruderId: mappedExtruderId,
                                        caliIdx: tray?.cali_idx,
                                        savedPresetId: slotPreset?.preset_id,
                                      }),
                                    }}
                                  >
                                    {slotVisual}
                                  </FilamentHoverCard>
                                ) : (
                                  <EmptySlotHoverCard
                                    kind={emptyKind ?? undefined}
                                    actions={renderAmsSlotActions({
                                      amsId: ams.id,
                                      slotId: htSlotId,
                                      loadTrayId: ams.id * 4 + htSlotId,
                                      isRefreshing: isHtRefreshing,
                                    })}
                                    configureSlot={{
                                      enabled: hasPermission('printers:control'),
                                      onConfigure: () => setConfigureSlotModal({
                                        amsId: ams.id,
                                        trayId: htSlotId,
                                        trayCount: ams.tray.length,
                                        extruderId: mappedExtruderId,
                                      }),
                                    }}
                                    onAssignSpool={() => setAssignSpoolModal({
                                      printerId: printer.id,
                                      amsId: ams.id,
                                      trayId: htSlotId,
                                      trayInfo: {
                                        type: '',
                                        material: undefined,
                                        profile: '',
                                        color: '',
                                        location: getAmsLabel(ams.id, ams.tray.length),
                                      },
                                    })}
                                  >
                                    {slotVisual}
                                  </EmptySlotHoverCard>
                                )}
                              </div>
                              {/* Stats stacked vertically: Temp on top, Humidity below */}
                              {(ams.humidity != null || ams.temp != null) && (
                                <div className="flex flex-col justify-center gap-1 shrink-0 max-[550px]:w-full">
                                  {ams.temp != null && (
                                    <TemperatureIndicator
                                      temp={ams.temp}
                                      goodThreshold={amsThresholds?.tempGood}
                                      fairThreshold={amsThresholds?.tempFair}
                                      onClick={() => setAmsHistoryModal({
                                        amsId: ams.id,
                                        amsLabel: getAmsLabel(ams.id, ams.tray.length),
                                        mode: 'temperature',
                                      })}
                                      compact
                                    />
                                  )}
                                  {ams.humidity != null && (
                                    <HumidityIndicator
                                      humidity={ams.humidity}
                                      goodThreshold={amsThresholds?.humidityGood}
                                      fairThreshold={amsThresholds?.humidityFair}
                                      onClick={() => setAmsHistoryModal({
                                        amsId: ams.id,
                                        amsLabel: getAmsLabel(ams.id, ams.tray.length),
                                        mode: 'humidity',
                                      })}
                                      compact
                                    />
                                  )}
                                </div>
                              )}
                            </div>
                          </div>
                        );
                      })}
                      {/* External spool(s) - grouped in one card like regular AMS */}
                      {status.vt_tray.length > 0 && showExternalSpool && (
                        <div style={getAmsCardStyle(status.vt_tray.length)} className="min-w-0 p-2 bg-bambu-dark rounded-[10px] space-y-1">
                          <div className="flex w-full min-h-7 items-center gap-1.5 rounded-lg bg-bambu-dark-secondary px-2 py-1">
                            <span className="block min-w-0 flex-1 truncate text-[length:var(--pc-t10,10px)] text-white font-medium">{t('printers.external')}</span>
                          </div>
                          <div className="grid w-full gap-1" style={slotGridStyle(status.vt_tray.length > 1 ? 2 : 1)}>
                            {[...status.vt_tray].sort((a, b) => (a.id ?? 254) - (b.id ?? 254)).map((extTray) => {
                              const extTrayId = extTray.id ?? 254;
                              // On dual-nozzle (H2C/H2D), tray_now=254 means "external spool"
                              // generically — use active_extruder to determine L vs R:
                              // extruder 1=left → Ext-L (id=254), extruder 0=right → Ext-R (id=255)
                              const isExtActive = isDualNozzle && effectiveTrayNow === 254
                                ? (extTrayId === 254 && status.active_extruder === 1) ||
                                  (extTrayId === 255 && status.active_extruder === 0)
                                : effectiveTrayNow === extTrayId;
                              const slotTrayId = extTrayId - 254; // 0 or 1
                              const extLabel = isDualNozzle
                                ? (extTrayId === 254 ? t('printers.extL') : t('printers.extR'))
                                : '';
                              const extCloudInfo = extTray.tray_info_idx ? filamentInfo?.[extTray.tray_info_idx] : null;
                              const extSlotPreset = slotPresets?.[255 * 4 + slotTrayId];

                              const extTrayTag = (extTray.tray_uuid || extTray.tag_uid || getFallbackSpoolTag(printer.serial_number, 255, slotTrayId))?.toUpperCase();
                              const extLinkedSpool = extTrayTag ? linkedSpools?.[extTrayTag] : undefined;
                              const extSpoolmanFill = getSpoolmanFillLevel(extLinkedSpool);
                              const extInventoryAssignment = onGetAssignment?.(printer.id, 255, slotTrayId);
                              const extInventoryFill = (() => {
                                const sp = extInventoryAssignment?.spool;
                                if (sp && sp.label_weight > 0 && sp.weight_used != null) {
                                  return Math.round(Math.max(0, sp.label_weight - sp.weight_used) / sp.label_weight * 100);
                                }
                                return null;
                              })();
                              const extHasFillLevel = extTray.tray_type && extTray.remain >= 0;
                              // If inventory says 0% but AMS reports positive remain, prefer AMS (#676)
                              const extResolvedInventoryFill = (extInventoryFill === 0 && extHasFillLevel && extTray.remain > 0)
                                ? null : extInventoryFill;
                              // Slot-assigned-only fill (when spool has no NFC tag but is slot-assigned)
                              const extSlotAssignmentForFill = spoolmanEnabled && !spoolmanLoading
                                ? spoolmanSlotAssignments?.find(a => a.printer_id === printer.id && a.ams_id === 255 && a.tray_id === slotTrayId)
                                : undefined;
                              const extSlotSpoolForFill = extSlotAssignmentForFill
                                ? spoolmanSpools?.find(s => s.id === extSlotAssignmentForFill.spoolman_spool_id)
                                : undefined;
                              const extSlotSpoolFill = (extSlotSpoolForFill && (extSlotSpoolForFill.label_weight ?? 0) > 0)
                                ? Math.round(Math.max(0, (extSlotSpoolForFill.label_weight ?? 0) - extSlotSpoolForFill.weight_used) / (extSlotSpoolForFill.label_weight ?? 1) * 100)
                                : null;
                              const extEffectiveFill = extSpoolmanFill ?? extSlotSpoolFill ?? extResolvedInventoryFill ?? (extHasFillLevel ? extTray.remain : null);
                              const extFillSource = (extSpoolmanFill !== null || extSlotSpoolFill !== null) ? 'spoolman' as const
                                : extResolvedInventoryFill !== null ? 'inventory' as const
                                : extHasFillLevel ? 'ams' as const
                                : undefined;

                              const extFilamentData = {
                                vendor: (isBambuLabSpool(extTray) ? 'Bambu Lab' : 'Generic') as 'Bambu Lab' | 'Generic',
                                profile: extSlotPreset?.preset_name || (extSlotSpoolForFill ? [extSlotSpoolForFill.brand, extSlotSpoolForFill.slicer_filament_name?.split('@')[0].trim() || extSlotSpoolForFill.material].filter(Boolean).join(' ').trim() : null) || extInventoryAssignment?.spool?.slicer_filament_name || extCloudInfo?.name || extTray.tray_sub_brands || extTray.tray_type || 'Unknown',
                                colorName: getColorName(extTray.tray_color || ''),
                                colorHex: extTray.tray_color || null,
                                kFactor: formatKValue(extTray.k),
                                fillLevel: extEffectiveFill,
                                trayUuid: extTray.tray_uuid || null,
                                tagUid: extTray.tag_uid || null,
                                fillSource: extFillSource,
                              };

                              const isEmpty = !extTray.tray_type;
                              const emptyKind = getEmptySlotKind(extTray);
                              const extSlotContent = (
                                <div className={`w-full bg-bambu-dark-secondary rounded-lg p-1 text-center ${isEmpty ? 'opacity-50' : ''} ${isExtActive ? 'ring-2 ring-bambu-green ring-offset-1 ring-offset-bambu-dark' : ''}`}>
                                  {/* Color circle: L/R inside on dual-nozzle external (replaces
                                      the separate Ext-L/Ext-R caption that made the row taller than
                                      regular AMS slots), 1-based slot number on single-nozzle. */}
                                  <FilamentSlotCircle
                                    trayColor={extTray.tray_color}
                                    trayType={extTray.tray_type}
                                    isEmpty={isEmpty}
                                    emptyKind={emptyKind}
                                    slotNumber={isDualNozzle ? (extTrayId === 254 ? 'L' : 'R') : slotTrayId + 1}
                                  />
                                  <div className={`text-[length:var(--pc-t9,9px)] font-bold truncate ${isEmpty ? 'text-white/40' : 'text-white'}`}>
                                    {extTray.tray_type || t('ams.slotEmpty')}
                                  </div>
                                  <div className="mt-1 h-1.5 bg-black/30 rounded-full overflow-hidden">
                                    {extEffectiveFill !== null && extEffectiveFill >= 0 && !isEmpty && (
                                      <div
                                        className="h-full rounded-full transition-all"
                                        style={{
                                          width: `${extEffectiveFill}%`,
                                          backgroundColor: getFillBarColor(extEffectiveFill),
                                        }}
                                      />
                                    )}
                                  </div>
                                </div>
                              );

                              return (
                                <div key={extTrayId} className="relative group w-full" style={filamentSlotStyle}>
                                  {!isEmpty ? (
                                    <FilamentHoverCard
                                      data={extFilamentData}
                                      actions={renderAmsSlotActions({
                                        amsId: 255,
                                        slotId: slotTrayId,
                                        loadTrayId: extTrayId,
                                        includeRfid: false,
                                      })}
                                      spoolman={{
                                        enabled: spoolmanEnabled,
                                        // #1457: slot assignment outranks tag-link (see top-level slot block).
                                        linkedSpoolId: extSlotAssignmentForFill?.spoolman_spool_id
                                          ?? (extTrayTag ? linkedSpools?.[extTrayTag]?.id : undefined),
                                        spoolmanUrl,
                                        syncMode: spoolmanSyncMode,
                                        // Suppress Link button when slot is occupied by ANY assignment (Phase 13 P13-6d)
                                        onLinkSpool: (spoolmanEnabled && !extSlotAssignmentForFill && !extInventoryAssignment) ? () => {
                                          const linkTag = (extFilamentData.trayUuid || extFilamentData.tagUid || getFallbackSpoolTag(printer.serial_number, 255, slotTrayId)).toUpperCase();
                                          setLinkSpoolModal({
                                            tagUid: extFilamentData.tagUid || linkTag,
                                            trayUuid: extFilamentData.trayUuid || '',
                                            printerId: printer.id,
                                            amsId: 255,
                                            trayId: slotTrayId,
                                          });
                                        } : undefined,
                                        onUnlinkSpool: extLinkedSpool?.id ? () => unlinkSpoolMutation.mutate(extLinkedSpool.id) : undefined,
                                      }}
                                      inventory={(() => {
                                        if (spoolmanEnabled) {
                                          if (spoolmanLoading) return undefined;
                                          const slotAssignment = extSlotAssignmentForFill;
                                          const spoolmanSpool = extSlotSpoolForFill;
                                          return {
                                            assignedSpool: spoolmanSpool ? {
                                              id: spoolmanSpool.id,
                                              material: spoolmanSpool.material,
                                              brand: spoolmanSpool.brand ?? null,
                                              color_name: spoolmanSpool.color_name ?? null,
                                              remainingWeightGrams: spoolmanSpool.label_weight
                                                ? Math.max(0, Math.round(spoolmanSpool.label_weight - spoolmanSpool.weight_used))
                                                : undefined,
                                            } : null,
                                            onAssignSpool: () => setAssignSpoolModal({
                                              printerId: printer.id,
                                              amsId: 255,
                                              trayId: slotTrayId,
                                              trayInfo: {
                                                type: extTray.tray_type || extFilamentData.profile,
                                                material: extTray.tray_type ?? undefined,
                                                profile: extFilamentData.profile,
                                                color: extFilamentData.colorHex || '',
                                                location: extLabel || t('printers.external'),
                                              },
                                            }),
                                            onUnassignSpool: (spoolmanSpool && !isBambuLabSpool(extTray)) ? () => onUnassignSpoolmanSpool?.(spoolmanSpool.id) : undefined,
                                            isAssigned: !!slotAssignment || isBambuLabSpool(extTray),
                                          };
                                        }
                                        const assignment = onGetAssignment?.(printer.id, 255, slotTrayId);
                                        return {
                                          assignedSpool: assignment?.spool ? {
                                            id: assignment.spool.id,
                                            material: assignment.spool.material,
                                            brand: assignment.spool.brand,
                                            color_name: assignment.spool.color_name,
                                            remainingWeightGrams: Math.max(0, Math.round(assignment.spool.label_weight - assignment.spool.weight_used)),
                                          } : null,
                                          onAssignSpool: () => setAssignSpoolModal({
                                            printerId: printer.id,
                                            amsId: 255,
                                            trayId: slotTrayId,
                                            trayInfo: {
                                              type: extTray.tray_type || extFilamentData.profile,
                                              material: extTray.tray_type ?? undefined,
                                              profile: extFilamentData.profile,
                                              color: extFilamentData.colorHex || '',
                                              location: extLabel || t('printers.external'),
                                            },
                                          }),
                                          onUnassignSpool: (assignment && !isBambuLabSpool(extTray)) ? () => onUnassignSpool?.(printer.id, 255, slotTrayId) : undefined,
                                          isAssigned: !!assignment || isBambuLabSpool(extTray),
                                        };
                                      })()}
                                      configureSlot={{
                                        enabled: hasPermission('printers:control'),
                                        onConfigure: () => setConfigureSlotModal({
                                          amsId: 255,
                                          trayId: slotTrayId,
                                          trayCount: 1,
                                          trayType: extTray.tray_type || undefined,
                                          trayColor: extTray.tray_color || undefined,
                                          traySubBrands: extTray.tray_sub_brands || undefined,
                                          trayInfoIdx: extTray.tray_info_idx || undefined,
                                          extruderId: isDualNozzle ? (extTrayId === 254 ? 1 : 0) : undefined,
                                          caliIdx: extTray.cali_idx,
                                          savedPresetId: extSlotPreset?.preset_id,
                                        }),
                                      }}
                                    >
                                      {extSlotContent}
                                    </FilamentHoverCard>
                                  ) : (
                                    <EmptySlotHoverCard
                                      kind={emptyKind ?? undefined}
                                      actions={renderAmsSlotActions({
                                        amsId: 255,
                                        slotId: slotTrayId,
                                        loadTrayId: extTrayId,
                                        includeRfid: false,
                                      })}
                                      configureSlot={{
                                        enabled: hasPermission('printers:control'),
                                        onConfigure: () => setConfigureSlotModal({
                                          amsId: 255,
                                          trayId: slotTrayId,
                                          trayCount: 1,
                                          extruderId: isDualNozzle ? (extTrayId === 254 ? 1 : 0) : undefined,
                                        }),
                                      }}
                                      onAssignSpool={() => setAssignSpoolModal({
                                        printerId: printer.id,
                                        amsId: 255,
                                        trayId: slotTrayId,
                                        trayInfo: {
                                          type: '',
                                          material: undefined,
                                          profile: '',
                                          color: '',
                                          location: `External Slot ${slotTrayId + 1}`,
                                        },
                                      })}
                                    >
                                      {extSlotContent}
                                    </EmptySlotHoverCard>
                                  )}
                                </div>
                              );
                            })}
                          </div>
                        </div>
                      )}
                  </div>
                </div>
              );
            })()}
          </>
        )}

        {/* Bottom block (power row + action bar). Wrapped together so the
            power row hugs the action bar at the card bottom instead of
            floating up when there's less filament content above. */}
        {viewMode === 'expanded' && (
          <div className="mt-auto">
        {smartPlug && (
          <div className="pt-3">
            <div className="flex items-center gap-2 mb-2">
              <span className="text-[length:var(--pc-t10,10px)] uppercase tracking-wider text-bambu-gray font-medium">
                {t('printers.power', 'Power')}
              </span>
              <div className="flex-1 h-[2px] bg-bambu-dark-tertiary" />
            </div>
            <div className="flex items-center gap-2 rounded-[10px] bg-bambu-dark p-2">
              {/* Plug name + current power */}
              <div className="flex items-center gap-2 min-w-0 pl-1">
                <Zap className="w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)] text-bambu-gray flex-shrink-0" />
                <span className="text-sm text-white truncate">{smartPlug.name}</span>
                <span
                  className="px-1.5 py-0.5 rounded-full bg-bambu-dark-tertiary text-bambu-gray text-[length:var(--pc-t10,10px)] font-medium flex-shrink-0"
                  title={t('smartPlugs.power')}
                >
                  {plugStatus?.energy?.power !== null && plugStatus?.energy?.power !== undefined ? `${Math.round(plugStatus.energy.power)}W` : '--'}
                </span>
              </div>

              {/* Spacer */}
              <div className="flex-1" />

              <div className="flex items-center gap-2">
                {/* Auto-off */}
                <button
                  onClick={() => toggleAutoOffMutation.mutate(!smartPlug.auto_off)}
                  disabled={toggleAutoOffMutation.isPending || smartPlug.auto_off_executed || !hasPermission('smart_plugs:control')}
                  title={!hasPermission('smart_plugs:control') ? t('printers.permission.noSmartPlugControl') : (smartPlug.auto_off_executed ? t('printers.autoOffExecuted') : t('printers.autoOffAfterPrint'))}
                  className={`flex h-8 w-8 flex-shrink-0 items-center justify-center rounded-lg text-xs font-bold transition-colors disabled:opacity-50 disabled:cursor-not-allowed ${
                    !hasPermission('smart_plugs:control')
                      ? 'bg-bambu-dark-tertiary/50 text-bambu-gray/50'
                      : smartPlug.auto_off || smartPlug.auto_off_executed
                        ? 'bg-bambu-green/20 text-bambu-green hover:bg-bambu-green/30'
                        : 'bg-bambu-dark-tertiary text-bambu-gray hover:text-white hover:bg-bambu-dark-tertiary/80'
                  }`}
                >
                  <Clock className="w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)]" />
                </button>
                <button
                  onClick={() => {
                    if (plugStatus?.state === 'ON') {
                      setShowPowerOffConfirm(true);
                    } else {
                      setShowPowerOnConfirm(true);
                    }
                  }}
                  disabled={powerControlMutation.isPending || !hasPermission('smart_plugs:control')}
                  className={`flex h-8 w-8 flex-shrink-0 items-center justify-center rounded-lg text-xs transition-colors disabled:opacity-50 disabled:cursor-not-allowed ${
                    !hasPermission('smart_plugs:control')
                      ? 'bg-bambu-dark-tertiary/50 text-bambu-gray/50'
                      : plugStatus?.state === 'ON'
                        ? 'bg-bambu-green/20 text-bambu-green hover:bg-bambu-green/30'
                        : 'bg-bambu-dark-tertiary text-bambu-gray hover:text-white hover:bg-bambu-dark-tertiary/80'
                  }`}
                  title={!hasPermission('smart_plugs:control') ? t('printers.permission.noSmartPlugControl') : (plugStatus?.state === 'ON' ? 'Turn off' : 'Turn on')}
                >
                  <Zap className="w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)]" />
                </button>
              </div>
            </div>

            {/* HA entity buttons row */}
            {scriptPlugs && scriptPlugs.length > 0 && (
              <div className="flex items-center gap-2 mt-2">
                <Home className="w-[var(--pc-i35,0.875rem)] h-[var(--pc-i35,0.875rem)] text-blue-600 dark:text-blue-400 flex-shrink-0" />
                <span className="text-xs text-bambu-gray">HA:</span>
                <div className="h-[2px] w-5 bg-bambu-dark-tertiary/50" />
                <div className="flex flex-wrap gap-1">
                  {scriptPlugs.map(script => {
                    const isScript = script.ha_entity_id?.startsWith('script.');
                    return (
                      <button
                        key={script.id}
                        onClick={() => {
                          if (isScript) {
                            runScriptMutation.mutate({ id: script.id, action: 'on' });
                          } else {
                            setHaToggleConfirm(script);
                          }
                        }}
                        disabled={runScriptMutation.isPending}
                        title={`${isScript ? 'Run' : 'Toggle'} ${script.ha_entity_id}`}
                        className="px-2 py-0.5 text-xs bg-blue-100 dark:bg-blue-500/20 text-blue-700 dark:text-blue-400 hover:bg-blue-500/30 rounded transition-colors flex items-center gap-1"
                      >
                        <Play className="w-[var(--pc-i25,0.625rem)] h-[var(--pc-i25,0.625rem)]" />
                        {script.name}
                      </button>
                    );
                  })}
                </div>
              </div>
            )}
          </div>
        )}

        {/* Home Assistant sensors (#1148). Outside the smartPlug block above:
            a printer can have an enclosure door contact without having a plug,
            and nesting it there would hide the row on exactly those setups. */}
        <PrinterHASensorRow printerId={printer.id} />

        {/* Connection Info & Actions */}
        <div className="pt-4">
            <div className="mb-3 h-[2px] bg-bambu-dark-tertiary" />
            <div className="flex items-center justify-between gap-2">
              {printerActionsMenu}
              <div className="flex items-center justify-end gap-2 flex-wrap">
                {/* Camera Button */}
                <Button
                  variant="secondary"
                  size="sm"
                  onClick={() => {
                    if (cameraViewMode === 'embedded' && onOpenEmbeddedCamera) {
                      onOpenEmbeddedCamera(printer.id, printer.name);
                    } else {
                      // Use saved window state or defaults
                      const saved = localStorage.getItem('cameraWindowState');
                      const state = saved ? JSON.parse(saved) : { width: 640, height: 400 };
                      const features = [
                        `width=${state.width}`,
                        `height=${state.height}`,
                        state.left !== undefined ? `left=${state.left}` : '',
                        state.top !== undefined ? `top=${state.top}` : '',
                        // No `noopener`: same-origin popup needs opener so the browser
                        // copies sessionStorage (auth token) into the new window.
                        'menubar=no,toolbar=no,location=no,status=no',
                      ].filter(Boolean).join(',');
                      window.open(`/camera/${printer.id}`, `camera-${printer.id}`, features);
                    }
                  }}
                  disabled={!status?.connected || !hasPermission('camera:view')}
                  title={!hasPermission('camera:view') ? t('printers.permission.noCamera') : (cameraViewMode === 'embedded' ? t('printers.openCameraOverlay') : t('printers.openCameraWindow'))}
                  className={footerIconButtonClass}
                >
                  <Video className="w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)]" />
                </Button>
                <Button
                  variant="secondary"
                  size="sm"
                  onClick={() => setShowFileManager(true)}
                  disabled={!isConnected || !hasPermission('printers:files')}
                  title={!hasPermission('printers:files') ? t('printers.permission.noFiles') : t('printers.browseFiles')}
                  className={footerIconButtonClass}
                >
                  <HardDrive className="w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)]" />
                </Button>
                {isConnected && status?.state !== 'RUNNING' && status?.state !== 'PAUSE' && (
                  <Button
                    size="sm"
                    onClick={() => setShowUploadForPrint(true)}
                    disabled={!hasPermission('library:upload') || !hasPermission('queue:create')}
                    title={
                      !hasPermission('library:upload')
                        ? t('fileManager.noPermissionUpload')
                        : !hasPermission('queue:create')
                          ? t('fileManager.noPermissionAddToQueue')
                          : t('common.print')
                    }
                    className={`${footerActionButtonClass} !bg-bambu-green hover:!bg-bambu-green/80 !text-white`}
                  >
                    <PrinterIcon className="w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)]" />
                    {t('common.print')}
                  </Button>
                )}
              </div>
            </div>
        </div>
          </div>
        )}

        {/* Scheduled Drying Banner -- inside CardContent so it picks up the
            card's horizontal padding instead of running full-bleed into the
            rounded bottom edge. */}
        <ScheduledDryingBanner
          printerId={printer.id}
          dryingActive={amsData.some(a => (a.dry_time ?? 0) > 0)}
          timeFormat={timeFormat}
        />
      </CardContent>

      {/* File Manager Modal */}
      {showFileManager && (
        <FileManagerModal
          printerId={printer.id}
          printerName={printer.name}
          onClose={() => setShowFileManager(false)}
        />
      )}

      {/* Upload for Print Modal */}
      {showUploadForPrint && (
        <FileUploadModal
          folderId={null}
          onClose={() => setShowUploadForPrint(false)}
          onUploadComplete={() => {}}
          autoUpload
          accept=".gcode,.3mf"
          validateFile={(file) => {
            const lower = file.name.toLowerCase();
            if (!lower.endsWith('.gcode') && !lower.includes('.gcode.')) {
              return t('printers.dropNotPrintable', 'Only .gcode and .gcode.3mf files can be printed');
            }
          }}
          onFileUploaded={(uploadedFile) => {
            // Check printer compatibility if sliced_for_model is available in metadata
            const slicedFor = (uploadedFile.metadata as Record<string, unknown>)?.sliced_for_model as string | undefined;
            const printerModel = mapModelCode(printer.model);
            if (slicedFor && printerModel && slicedFor.toLowerCase() !== printerModel.toLowerCase()) {
              api.deleteLibraryFile(uploadedFile.id).catch(() => {});
              return t('printers.incompatibleFile', 'This file was sliced for {{slicedFor}}, but this printer is a {{printerModel}}', { slicedFor, printerModel });
            }
            setPrintAfterUpload({ id: uploadedFile.id, filename: uploadedFile.filename });
          }}
        />
      )}

      {/* Print Modal (after upload) */}
      {printAfterUpload && (
        <PrintModal
          mode="create"
          libraryFileId={printAfterUpload.id}
          archiveName={printAfterUpload.filename}
          initialSelectedPrinterIds={[printer.id]}
          onClose={() => setPrintAfterUpload(null)}
          onSuccess={() => setPrintAfterUpload(null)}
          cleanupLibraryAfterDispatch
        />
      )}

      {/* MQTT Debug Modal */}
      {showMQTTDebug && (
        <MQTTDebugModal
          printerId={printer.id}
          printerName={printer.name}
          onClose={() => setShowMQTTDebug(false)}
        />
      )}

      {showDiagnostic && (
        <ConnectionDiagnosticModal
          printerId={printer.id}
          printerName={printer.name}
          onClose={() => setShowDiagnostic(false)}
        />
      )}

      {showPrinterInfo && (
        <PrinterInfoModal
          printer={printer}
          status={status}
          totalPrintHours={maintenanceInfo?.total_print_hours}
          onClose={closePrinterInfo}
        />
      )}

      {/* Plate Check Result Modal */}
      {plateCheckResult && (
        <div className="fixed inset-0 bg-black/50 flex items-center justify-center z-50 p-4" onClick={() => closePlateCheckModal()}>
          <div className="bg-bambu-dark-secondary border border-bambu-dark-tertiary rounded-xl shadow-2xl max-w-lg w-full" onClick={e => e.stopPropagation()}>
            <div className="flex items-center justify-between p-4 border-b border-bambu-dark-tertiary">
              <div className="flex items-center gap-2">
                {plateCheckResult.needs_calibration ? (
                  <ScanSearch className="w-[var(--pc-i5,1.25rem)] h-[var(--pc-i5,1.25rem)] text-blue-500" />
                ) : plateCheckResult.is_empty ? (
                  <CheckCircle className="w-[var(--pc-i5,1.25rem)] h-[var(--pc-i5,1.25rem)] text-green-500" />
                ) : (
                  <XCircle className="w-[var(--pc-i5,1.25rem)] h-[var(--pc-i5,1.25rem)] text-yellow-500" />
                )}
                <h2 className="text-lg font-semibold text-white">
                  Build Plate Check
                </h2>
                {plateCheckResult.reference_count !== undefined && plateCheckResult.max_references && (
                  <span className="text-xs text-bambu-gray bg-bambu-dark-tertiary px-2 py-1 rounded">
                    {plateCheckResult.reference_count}/{plateCheckResult.max_references} refs
                  </span>
                )}
              </div>
              <button
                onClick={() => closePlateCheckModal()}
                className="p-1 text-bambu-gray hover:text-white rounded transition-colors"
              >
                <X className="w-[var(--pc-i5,1.25rem)] h-[var(--pc-i5,1.25rem)]" />
              </button>
            </div>
            <div className="p-4 space-y-4">
              {plateCheckResult.needs_calibration ? (
                <>
                  <div className="p-3 rounded-lg bg-blue-100 dark:bg-blue-500/20 border border-blue-300 dark:border-blue-500/50">
                    <p className="font-medium text-blue-700 dark:text-blue-400">
                      {t('printers.plateDetection.calibrationRequired')}
                    </p>
                    <p className="text-sm text-bambu-gray mt-1" dangerouslySetInnerHTML={{ __html: t('printers.plateDetection.calibrationInstructions') }} />
                  </div>
                  <div className="text-sm text-bambu-gray space-y-2">
                    <p>{t('printers.plateDetection.calibrationDescription')}</p>
                    <p dangerouslySetInnerHTML={{ __html: t('printers.plateDetection.calibrationTip') }} />
                  </div>
                </>
              ) : (
                <>
                  <div className={`p-3 rounded-lg ${plateCheckResult.is_empty ? 'bg-green-100 dark:bg-green-500/20 border border-green-300 dark:border-green-500/50' : 'bg-yellow-100 dark:bg-yellow-500/20 border border-yellow-300 dark:border-yellow-500/50'}`}>
                    <p className={`font-medium ${plateCheckResult.is_empty ? 'text-green-700 dark:text-green-400' : 'text-yellow-700 dark:text-yellow-400'}`}>
                      {plateCheckResult.is_empty ? t('printers.plateDetection.plateEmpty') : t('printers.plateDetection.objectsDetected')}
                    </p>
                    <p className="text-sm text-bambu-gray mt-1">
                      {t('printers.plateDetection.confidence')}: {Math.round(plateCheckResult.confidence * 100)}% | {t('printers.plateDetection.difference')}: {plateCheckResult.difference_percent.toFixed(1)}%
                    </p>
                  </div>
                  {plateCheckResult.debug_image_url && (
                    <div>
                      <p className="text-sm text-bambu-gray mb-2">{t('printers.plateDetection.analysisPreview')}</p>
                      <img
                        src={plateCheckResult.debug_image_url}
                        alt={t('printers.plateDetection.analysisPreview')}
                        className="w-full rounded-lg border border-bambu-dark-tertiary"
                      />
                      <p className="text-xs text-bambu-gray mt-2">
                        {t('printers.plateDetection.analysisLegend')}
                      </p>
                    </div>
                  )}
                  <p className="text-xs text-bambu-gray">
                    {plateCheckResult.message}
                  </p>
                </>
              )}

              {/* Saved References Grid */}
              {plateReferences && plateReferences.references.length > 0 && (
                <div className="mt-4">
                  <div className="flex items-center gap-2 mb-2">
                    <p className="text-sm font-medium text-white shrink-0">
                      {t('printers.plateDetection.savedReferences', { count: plateReferences.references.length, max: plateReferences.max_references })}
                    </p>
                    <div className="flex-1 h-[2px] bg-bambu-dark-tertiary" />
                  </div>
                  <div className="grid grid-cols-5 gap-2">
                    {plateReferences.references.map((ref) => (
                      <div key={ref.index} className="relative group">
                        <img
                          src={api.getPlateReferenceThumbnailUrl(printer.id, ref.index)}
                          alt={ref.label || `Reference ${ref.index + 1}`}
                          className="w-full aspect-video object-cover rounded border border-bambu-dark-tertiary"
                        />
                        {/* Delete button */}
                        <button
                          onClick={() => handleDeleteRef(ref.index)}
                          className="absolute top-1 right-1 p-0.5 bg-red-500/80 rounded opacity-0 group-hover:opacity-100 transition-opacity"
                          title={t('printers.plateDetection.deleteReference')}
                        >
                          <X className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)] text-white" />
                        </button>
                        {/* Label */}
                        {editingRefLabel?.index === ref.index ? (
                          <input
                            type="text"
                            value={editingRefLabel.label}
                            onChange={(e) => setEditingRefLabel({ ...editingRefLabel, label: e.target.value })}
                            onBlur={() => handleUpdateRefLabel(ref.index, editingRefLabel.label)}
                            onKeyDown={(e) => {
                              if (e.key === 'Enter') handleUpdateRefLabel(ref.index, editingRefLabel.label);
                              if (e.key === 'Escape') setEditingRefLabel(null);
                            }}
                            className="w-full mt-1 px-1 py-0.5 text-xs bg-bambu-dark-tertiary border border-bambu-green rounded text-white"
                            autoFocus
                            placeholder={t('printers.plateDetection.labelPlaceholder')}
                          />
                        ) : (
                          <p
                            className="text-xs text-bambu-gray mt-1 truncate cursor-pointer hover:text-white"
                            onClick={() => setEditingRefLabel({ index: ref.index, label: ref.label })}
                            title={ref.label ? t('printers.plateDetection.clickToEdit', { label: ref.label }) : t('printers.plateDetection.clickToAddLabel')}
                          >
                            {ref.label || <span className="italic opacity-50">{t('printers.noLabel')}</span>}
                          </p>
                        )}
                        {/* Timestamp */}
                        <p className="text-[length:var(--pc-t10,10px)] text-bambu-gray/60">
                          {ref.timestamp ? parseUTCDate(ref.timestamp)?.toLocaleDateString() ?? '' : ''}
                        </p>
                      </div>
                    ))}
                  </div>
                </div>
              )}

              {/* ROI Editor */}
              {!plateCheckResult.needs_calibration && (
                <div className="mt-4">
                  <div className="flex items-center justify-between mb-2">
                    <div className="flex min-w-0 flex-1 items-center gap-2">
                      <p className="text-sm font-medium text-white shrink-0">{t('printers.roi.title')}</p>
                      <div className="flex-1 h-[2px] bg-bambu-dark-tertiary" />
                    </div>
                    {!editingRoi ? (
                      <Button
                        variant="ghost"
                        size="sm"
                        onClick={() => setEditingRoi(plateCheckResult.roi || { x: 0.15, y: 0.35, w: 0.70, h: 0.55 })}
                      >
                        <Pencil className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)] mr-1" />
                        {t('common.edit')}
                      </Button>
                    ) : (
                      <div className="flex gap-1">
                        <Button
                          variant="ghost"
                          size="sm"
                          onClick={() => setEditingRoi(null)}
                          disabled={isSavingRoi}
                        >
                          {t('common.cancel')}
                        </Button>
                        <Button
                          size="sm"
                          onClick={handleSaveRoi}
                          disabled={isSavingRoi}
                        >
                          {isSavingRoi ? <Loader2 className="w-[var(--pc-i3,0.75rem)] h-[var(--pc-i3,0.75rem)] animate-spin" /> : t('common.save')}
                        </Button>
                      </div>
                    )}
                  </div>
                  {editingRoi ? (
                    <div className="space-y-3 bg-bambu-dark-tertiary/50 p-3 rounded-lg">
                      <div className="grid grid-cols-2 gap-3">
                        <div>
                          <label className="text-xs text-bambu-gray">{t('printers.roi.xStart')}</label>
                          <input
                            type="range"
                            min="0"
                            max="0.9"
                            step="0.01"
                            value={editingRoi.x}
                            onChange={(e) => setEditingRoi({ ...editingRoi, x: parseFloat(e.target.value) })}
                            className="w-full h-1.5 bg-bambu-dark-tertiary rounded-lg cursor-pointer accent-green-500"
                          />
                          <span className="text-xs text-bambu-gray">{Math.round(editingRoi.x * 100)}%</span>
                        </div>
                        <div>
                          <label className="text-xs text-bambu-gray">{t('printers.roi.yStart')}</label>
                          <input
                            type="range"
                            min="0"
                            max="0.9"
                            step="0.01"
                            value={editingRoi.y}
                            onChange={(e) => setEditingRoi({ ...editingRoi, y: parseFloat(e.target.value) })}
                            className="w-full h-1.5 bg-bambu-dark-tertiary rounded-lg cursor-pointer accent-green-500"
                          />
                          <span className="text-xs text-bambu-gray">{Math.round(editingRoi.y * 100)}%</span>
                        </div>
                        <div>
                          <label className="text-xs text-bambu-gray">{t('printers.width')}</label>
                          <input
                            type="range"
                            min="0.1"
                            max="1"
                            step="0.01"
                            value={editingRoi.w}
                            onChange={(e) => setEditingRoi({ ...editingRoi, w: parseFloat(e.target.value) })}
                            className="w-full h-1.5 bg-bambu-dark-tertiary rounded-lg cursor-pointer accent-green-500"
                          />
                          <span className="text-xs text-bambu-gray">{Math.round(editingRoi.w * 100)}%</span>
                        </div>
                        <div>
                          <label className="text-xs text-bambu-gray">{t('printers.height')}</label>
                          <input
                            type="range"
                            min="0.1"
                            max="1"
                            step="0.01"
                            value={editingRoi.h}
                            onChange={(e) => setEditingRoi({ ...editingRoi, h: parseFloat(e.target.value) })}
                            className="w-full h-1.5 bg-bambu-dark-tertiary rounded-lg cursor-pointer accent-green-500"
                          />
                          <span className="text-xs text-bambu-gray">{Math.round(editingRoi.h * 100)}%</span>
                        </div>
                      </div>
                      <p className="text-xs text-bambu-gray">
                        {t('printers.roi.instruction')}
                      </p>
                    </div>
                  ) : (
                    <p className="text-xs text-bambu-gray">
                      Current: X={Math.round((plateCheckResult.roi?.x || 0.15) * 100)}%, Y={Math.round((plateCheckResult.roi?.y || 0.35) * 100)}%,
                      W={Math.round((plateCheckResult.roi?.w || 0.70) * 100)}%, H={Math.round((plateCheckResult.roi?.h || 0.55) * 100)}%
                    </p>
                  )}
                </div>
              )}
            </div>
            <div className="flex justify-end gap-2 p-4">
              {plateCheckResult.needs_calibration ? (
                <>
                  <Button variant="ghost" onClick={() => closePlateCheckModal()}>
                    {t('common.cancel')}
                  </Button>
                  <Button
                    onClick={() => handleCalibratePlate()}
                    disabled={isCalibrating}
                  >
                    {isCalibrating ? (
                      <>
                        <Loader2 className="w-[var(--pc-i4,1rem)] h-[var(--pc-i4,1rem)] mr-2 animate-spin" />
                        Calibrating...
                      </>
                    ) : (
                      'Calibrate Empty Plate'
                    )}
                  </Button>
                </>
              ) : (
                <>
                  <Button variant="ghost" onClick={() => handleCalibratePlate()} disabled={isCalibrating}>
                    {isCalibrating ? 'Adding...' : `Add Reference (${plateReferences?.references.length || 0}/${plateReferences?.max_references || 5})`}
                  </Button>
                  <Button onClick={() => closePlateCheckModal()}>
                    Close
                  </Button>
                </>
              )}
            </div>
          </div>
        </div>
      )}

      {/* Power On Confirmation */}
      {showPowerOnConfirm && smartPlug && (
        <ConfirmModal
          title={t('printers.confirm.powerOnTitle')}
          message={t('printers.confirm.powerOnMessage', { name: printer.name })}
          confirmText={t('printers.confirm.powerOnButton')}
          variant="default"
          onConfirm={() => {
            powerControlMutation.mutate('on');
            setShowPowerOnConfirm(false);
          }}
          onCancel={() => setShowPowerOnConfirm(false)}
        />
      )}

      {/* Maintenance Mode mid-print confirmation (#1476) — entering maintenance
          disconnects MQTT, which stops progress tracking + completion
          notifications for the in-flight job. Idle / FINISH / FAILED states
          skip this dialog and toggle directly. */}
      {confirmMaintenanceEnter && (
        <ConfirmModal
          title={t('printers.maintenance.confirmMidPrintTitle')}
          message={t('printers.maintenance.confirmMidPrintMessage', { name: printer.name })}
          confirmText={t('printers.maintenance.menuEnter')}
          variant="danger"
          onConfirm={() => {
            maintenanceMutation.mutate(false);
            setConfirmMaintenanceEnter(false);
          }}
          onCancel={() => setConfirmMaintenanceEnter(false)}
        />
      )}

      {/* Power Off Confirmation */}
      {showPowerOffConfirm && smartPlug && (
        <ConfirmModal
          title={t('printers.confirm.powerOffTitle')}
          message={
            status?.state === 'RUNNING'
              ? t('printers.confirm.powerOffWarning', { name: printer.name })
              : t('printers.confirm.powerOffMessage', { name: printer.name })
          }
          confirmText={t('printers.confirm.powerOffButton')}
          variant="danger"
          onConfirm={() => {
            powerControlMutation.mutate('off');
            setShowPowerOffConfirm(false);
          }}
          onCancel={() => setShowPowerOffConfirm(false)}
        />
      )}

      {/* HA entity toggle confirmation (Show on Printer Card switches) */}
      {haToggleConfirm && (
        <ConfirmModal
          title={t('printers.confirm.haToggleTitle', { name: haToggleConfirm.name })}
          message={
            status?.state === 'RUNNING'
              ? t('printers.confirm.haToggleWarning', { name: printer.name, entity: haToggleConfirm.ha_entity_id || haToggleConfirm.name })
              : t('printers.confirm.haToggleMessage', { entity: haToggleConfirm.ha_entity_id || haToggleConfirm.name })
          }
          confirmText={t('printers.confirm.haToggleButton')}
          variant={status?.state === 'RUNNING' ? 'danger' : 'default'}
          onConfirm={() => {
            runScriptMutation.mutate({ id: haToggleConfirm.id, action: 'toggle' });
            setHaToggleConfirm(null);
          }}
          onCancel={() => setHaToggleConfirm(null)}
        />
      )}

      {/* Stop Print Confirmation */}
      {showStopConfirm && (
        <ConfirmModal
          title={t('printers.confirm.stopTitle')}
          message={t('printers.confirm.stopMessage', { name: printer.name })}
          confirmText={t('printers.confirm.stopButton')}
          variant="danger"
          onConfirm={() => {
            stopPrintMutation.mutate();
            setShowStopConfirm(false);
          }}
          onCancel={() => setShowStopConfirm(false)}
        />
      )}

      {/* Pause Print Confirmation */}
      {showPauseConfirm && (
        <ConfirmModal
          title={t('printers.confirm.pauseTitle')}
          message={t('printers.confirm.pauseMessage', { name: printer.name })}
          confirmText={t('printers.confirm.pauseButton')}
          variant="default"
          onConfirm={() => {
            pausePrintMutation.mutate();
            setShowPauseConfirm(false);
          }}
          onCancel={() => setShowPauseConfirm(false)}
        />
      )}

      {/* Resume Print Confirmation */}
      {showResumeConfirm && (
        <ConfirmModal
          title={t('printers.confirm.resumeTitle')}
          message={t('printers.confirm.resumeMessage', { name: printer.name })}
          confirmText={t('printers.confirm.resumeButton')}
          variant="default"
          onConfirm={() => {
            resumePrintMutation.mutate();
            setShowResumeConfirm(false);
          }}
          onCancel={() => setShowResumeConfirm(false)}
        />
      )}

      {/* Skip Objects Modal */}
      <SkipObjectsModal
        printerId={printer.id}
        isOpen={showSkipObjectsModal}
        onClose={() => setShowSkipObjectsModal(false)}
      />

      {/* HMS Error Modal */}
      {showHMSModal && (
        <HMSErrorModal
          printerName={printer.name}
          errors={status?.hms_errors || []}
          onClose={() => setShowHMSModal(false)}
          printerId={printer.id}
          hasPermission={hasPermission}
          runoutGuidance={runoutGuidance}
        />
      )}

      {/* AI failure detection modal (#1546) */}
      {showAiModal && (
        <AiDetectionModal
          printerName={printer.name}
          detection={aiDetection}
          lastError={aiLastError}
          onClose={() => setShowAiModal(false)}
        />
      )}

      {/* AMS Filament Backup status / control modal (#1762) */}
      {amsBackupModalOpen && status && (
        <AmsBackupModal
          isOpen={amsBackupModalOpen}
          state={status.ams_filament_backup}
          amsUnits={status.ams}
          amsExtruderMap={status.ams_extruder_map}
          isDualNozzle={printer.nozzle_count === 2 || status?.temperatures?.nozzle_2 !== undefined}
          canToggle={hasPermission('printers:control')}
          pending={setAmsBackupMutation.isPending}
          onToggle={(next) => setAmsBackupMutation.mutate(next)}
          onClose={() => setAmsBackupModalOpen(false)}
        />
      )}

      {/* AMS History Modal */}
      {amsHistoryModal && (
        <AMSHistoryModal
          isOpen={!!amsHistoryModal}
          onClose={() => setAmsHistoryModal(null)}
          printerId={printer.id}
          printerName={printer.name}
          amsId={amsHistoryModal.amsId}
          amsLabel={amsHistoryModal.amsLabel}
          initialMode={amsHistoryModal.mode}
          thresholds={amsThresholds}
        />
      )}

      {/* Heater History Modal (nozzle / bed / chamber) */}
      {heaterHistoryModal && (
        <HeaterHistoryModal
          isOpen={!!heaterHistoryModal}
          onClose={() => setHeaterHistoryModal(null)}
          printerId={printer.id}
          printerName={printer.name}
          initialKind={heaterHistoryModal.initialKind}
          availableKinds={heaterHistoryModal.availableKinds}
        />
      )}

      {/* Link Spool Modal */}
      {linkSpoolModal && (
        <LinkSpoolModal
          isOpen={!!linkSpoolModal}
          onClose={() => setLinkSpoolModal(null)}
          tagUid={linkSpoolModal.tagUid}
          trayUuid={linkSpoolModal.trayUuid}
          printerId={linkSpoolModal.printerId}
          amsId={linkSpoolModal.amsId}
          trayId={linkSpoolModal.trayId}
        />
      )}

      {/* Assign Spool Modal */}
      {assignSpoolModal && (
        <AssignSpoolModal
          isOpen={!!assignSpoolModal}
          onClose={() => setAssignSpoolModal(null)}
          printerId={assignSpoolModal.printerId}
          amsId={assignSpoolModal.amsId}
          trayId={assignSpoolModal.trayId}
          trayInfo={assignSpoolModal.trayInfo}
          spoolmanEnabled={!!spoolmanEnabled}
        />
      )}

      {/* Configure AMS Slot Modal */}
      {configureSlotModal && (
        <ConfigureAmsSlotModal
          isOpen={!!configureSlotModal}
          onClose={() => setConfigureSlotModal(null)}
          printerId={printer.id}
          slotInfo={configureSlotModal}
          printerModel={mapModelCode(printer.model) || undefined}
          nozzleDiameter={resolveSlotNozzleDiameter(status, configureSlotModal.amsId)}
          onSuccess={() => {
            // Refresh slot presets to show updated profile name
            queryClient.invalidateQueries({ queryKey: ['slotPresets', printer.id] });
            // Printer status will update automatically via WebSocket when AMS data changes
            queryClient.invalidateQueries({ queryKey: ['printerStatus', printer.id] });
          }}
        />
      )}

      {/* Edit Printer Modal */}
      {showEditModal && (
        <EditPrinterModal
          printer={printer}
          onClose={() => setShowEditModal(false)}
        />
      )}

      {/* Firmware Update Modal */}
      {showFirmwareModal && firmwareInfo && (
        <FirmwareUpdateModal
          printer={printer}
          firmwareInfo={firmwareInfo}
          onClose={() => setShowFirmwareModal(false)}
        />
      )}

      {/* AMS Drying Popover — fixed position to avoid overflow/z-index issues */}
      {dryingPopoverAmsId !== null && dryingPopoverPos && (() => {
        const maxTemp = dryingPopoverModuleType === 'n3s' ? 85 : 65;
        const sliderMin = 35;
        const sliderMax = maxTemp + 10;
        return (
          <>
            {/* Backdrop */}
            <div
              className="fixed inset-0 z-[100]"
              data-testid="drying-popover-backdrop"
              onMouseDown={() => {
                // The click that dismisses the native datetime picker lands
                // here; it must not close the popover. The input is still
                // focused at mousedown, so remember that and swallow the
                // matching click.
                dryingBackdropSkipCloseRef.current =
                  dryingAtTimeInputRef.current !== null &&
                  document.activeElement === dryingAtTimeInputRef.current;
              }}
              onClick={() => {
                if (dryingBackdropSkipCloseRef.current) {
                  dryingBackdropSkipCloseRef.current = false;
                  return;
                }
                setDryingPopoverAmsId(null);
              }}
            />
            {/* An 'above' popover is anchored by its bottom edge (CSS
                bottom) so late-appearing content grows it upward, staying on
                screen and glued to the trigger. maxHeight caps to the space
                on the anchored side; when the viewport is too short the body
                scrolls and the footer stays pinned. dvh so iOS Safari's
                bottom toolbar doesn't clip the footer. */}
            <div
              className="fixed z-[101] flex flex-col w-[240px] bg-bambu-dark-secondary border border-bambu-dark-tertiary rounded-xl shadow-2xl overflow-hidden"
              style={{
                left: dryingPopoverPos.left,
                ...(dryingPopoverPos.placement === 'above'
                  ? {
                      bottom: `calc(100dvh - ${dryingPopoverPos.anchorY}px)`,
                      maxHeight: `${dryingPopoverPos.anchorY - 8}px`,
                    }
                  : {
                      top: dryingPopoverPos.top,
                      maxHeight: `calc(100dvh - ${dryingPopoverPos.top}px - 8px)`,
                    }),
              }}
              onClick={e => e.stopPropagation()}
            >
              {/* Header */}
              <div className="shrink-0 flex items-center justify-center gap-2 px-3 py-2.5">
                <Flame className="w-[var(--pc-i35,0.875rem)] h-[var(--pc-i35,0.875rem)] text-bambu-green" />
                <span className="text-sm text-white font-medium text-center">{t('printers.drying.start')}</span>
              </div>
              <div className="shrink-0 h-px bg-bambu-dark-tertiary" />
              {/* Body */}
              <div className="px-3 py-2.5 space-y-2.5 overflow-y-auto min-h-0">
                {/* Filament type select */}
                <div>
                  <label className="text-[length:var(--pc-t10,10px)] text-white/70 font-medium mb-1 block">{t('printers.filaments')}</label>
                  <ToolbarDropdown
                    value={dryingFilament}
                    options={Object.keys(dryingPresets).map(fil => ({ value: fil, label: fil }))}
                    onChange={fil => {
                      setDryingFilament(fil);
                      const preset = dryingPresets[fil];
                      if (preset) {
                        const key = dryingPopoverModuleType === 'n3s' ? 'n3s' : 'n3f';
                        setDryingTemp(preset[key]);
                        setDryingDuration(dryingPopoverModuleType === 'n3s' ? preset.n3s_hours : preset.n3f_hours);
                      }
                    }}
                    fullWidth
                  />
                </div>
                {/* Temperature */}
                <div>
                  <div className="flex items-center justify-between mb-1">
                    <label className="text-[length:var(--pc-t10,10px)] text-white/70 font-medium">{t('printers.drying.temperature')}</label>
                    <div className="flex items-center gap-1">
                      <input
                        type="number"
                        min={45}
                        max={maxTemp}
                        value={dryingTemp}
                        onChange={e => setDryingTemp(Math.min(maxTemp, Math.max(45, Number(e.target.value) || 45)))}
                        className="w-12 px-1 py-0.5 bg-bambu-dark border border-bambu-dark-tertiary rounded text-white text-[length:var(--pc-t11,11px)] text-center focus:outline-none focus:border-bambu-green [appearance:textfield] [&::-webkit-outer-spin-button]:appearance-none [&::-webkit-inner-spin-button]:appearance-none"
                      />
                      <span className="text-[length:var(--pc-t10,10px)] text-bambu-gray">°C</span>
                    </div>
                  </div>
                  <input
                    type="range"
                    min={sliderMin}
                    max={sliderMax}
                    value={dryingTemp}
                    onChange={e => setDryingTemp(Math.min(maxTemp, Math.max(45, Number(e.target.value))))}
                    className="w-full h-1 accent-bambu-green cursor-pointer"
                  />
                  <div className="flex justify-between text-[length:var(--pc-t9,9px)] text-bambu-gray/50 mt-0.5">
                    <span>45°C</span>
                    <span>{maxTemp}°C</span>
                  </div>
                </div>
                {/* Duration */}
                <div>
                  <div className="flex items-center justify-between mb-1">
                    <label className="text-[length:var(--pc-t10,10px)] text-white/70 font-medium">{t('printers.drying.duration')}</label>
                    <div className="flex items-center gap-1">
                      <input
                        type="number"
                        min={1}
                        max={24}
                        value={dryingDuration}
                        onChange={e => setDryingDuration(Math.min(24, Math.max(1, Number(e.target.value) || 1)))}
                        className="w-10 px-1 py-0.5 bg-bambu-dark border border-bambu-dark-tertiary rounded text-white text-[length:var(--pc-t11,11px)] text-center focus:outline-none focus:border-bambu-green [appearance:textfield] [&::-webkit-outer-spin-button]:appearance-none [&::-webkit-inner-spin-button]:appearance-none"
                      />
                      <span className="text-[length:var(--pc-t10,10px)] text-bambu-gray">{t('printers.drying.hours')}</span>
                    </div>
                  </div>
                  <input
                    type="range"
                    min={1}
                    max={24}
                    value={dryingDuration}
                    onChange={e => setDryingDuration(Number(e.target.value))}
                    className="w-full h-1 accent-bambu-green cursor-pointer"
                  />
                  <div className="flex justify-between text-[length:var(--pc-t9,9px)] text-bambu-gray/50 mt-0.5">
                    <span>1h</span>
                    <span>24h</span>
                  </div>
                </div>
                {/* Rotate tray — disabled when any tray in THIS AMS has its
                    filament threaded out into the feed tube. The whole AMS
                    rotates as one mechanism (all 4 spools turn together), so a
                    single loaded slot locks the entire unit. Bambu per-tray
                    `state`: 9 = empty, 10 = spool present but not loaded
                    (rotation possible), 11 = loaded into tube (rotation impossible).
                    Catches both mid-print (active feed) AND idle-with-threaded-
                    filament — the H2D's post-print state leaves filament in the
                    tube but tray_now resets to 255, which a tray_now-only check
                    would silently miss. */}
                {(() => {
                  const targetAms = dryingPopoverAmsId !== null
                    ? amsData.find(a => a.id === dryingPopoverAmsId)
                    : undefined;
                  const trayLoadedInThisAms = (targetAms?.tray ?? []).some(
                    tray => tray.state === 11,
                  );
                  const rotateChecked = dryingRotateTray && !trayLoadedInThisAms;
                  return (
                    <button
                      type="button"
                      onClick={() => setDryingRotateTray(enabled => !enabled)}
                      aria-pressed={rotateChecked}
                      disabled={trayLoadedInThisAms}
                      title={trayLoadedInThisAms ? t('printers.drying.rotateUnavailableReason') : undefined}
                      className={`h-8 w-full rounded-lg border px-2 text-sm font-medium transition-colors disabled:cursor-not-allowed disabled:opacity-50 ${
                        rotateChecked
                          ? 'bg-bambu-green border-bambu-green text-white'
                          : 'bg-bambu-dark border-bambu-dark-tertiary text-white hover:bg-bambu-dark-tertiary disabled:hover:bg-bambu-dark'
                      }`}
                    >
                      {t('printers.drying.rotateTray')}
                    </button>
                  );
                })()}
                {/* Start mode: now / after delay / at time (#2638) */}
                <div>
                  <label className="text-[10px] text-white/70 font-medium mb-1 block">{t('printers.drying.startMode')}</label>
                  <div className="grid grid-cols-3 gap-1">
                    {(['now', 'delay', 'at_time'] as const).map(mode => (
                      <button
                        key={mode}
                        type="button"
                        onClick={() => setDryingStartMode(mode)}
                        className={`py-1 rounded-lg border text-[10px] font-medium transition-colors ${
                          dryingStartMode === mode
                            ? 'bg-bambu-green border-bambu-green text-white'
                            : 'bg-bambu-dark border-bambu-dark-tertiary text-white hover:bg-bambu-dark-tertiary'
                        }`}
                      >
                        {t(mode === 'now' ? 'printers.drying.modeNow' : mode === 'delay' ? 'printers.drying.modeDelay' : 'printers.drying.modeAtTime')}
                      </button>
                    ))}
                  </div>
                  {dryingStartMode === 'delay' && (
                    // Inline chips: a dropdown menu would be clipped by
                    // the popover's scrollable body.
                    <div className="mt-1.5 grid grid-cols-4 gap-1">
                      {DRYING_DELAY_OPTIONS.map(min => (
                        <button
                          key={min}
                          type="button"
                          aria-pressed={dryingDelayMinutes === min}
                          onClick={() => setDryingDelayMinutes(min)}
                          className={`py-1 rounded-lg border text-[10px] font-medium transition-colors ${
                            dryingDelayMinutes === min
                              ? 'bg-bambu-green border-bambu-green text-white'
                              : 'bg-bambu-dark border-bambu-dark-tertiary text-white hover:bg-bambu-dark-tertiary'
                          }`}
                        >
                          {formatDurationFromHours(min / 60)}
                        </button>
                      ))}
                    </div>
                  )}
                  {dryingStartMode === 'at_time' && (
                    <input
                      ref={dryingAtTimeInputRef}
                      type="datetime-local"
                      data-testid="drying-start-at"
                      value={dryingStartAt}
                      onChange={e => setDryingStartAt(e.target.value)}
                      className="mt-1.5 w-full px-2 py-1 bg-bambu-dark border border-bambu-dark-tertiary rounded text-white text-[11px] focus:outline-none focus:border-bambu-green [color-scheme:dark]"
                    />
                  )}
                </div>
              </div>
              <div className="shrink-0 h-px bg-bambu-dark-tertiary" />
              {/* Footer */}
              <div className="shrink-0 px-3 pt-2.5 pb-3">
                <button
                  onClick={() => {
                    if (dryingPopoverAmsId !== null) {
                      // Clamp rotateTray off when any tray in this AMS is loaded into
                      // the tube — the rotate UI is disabled there, but the state may
                      // linger as `true` from a previous AMS, or a print may have
                      // started while the popover was open. Without this clamp the
                      // Start payload would carry rotate_tray=true and firmware would
                      // reject with dry_sf_reason=[3] (ConsumableAtAmsOutlet).
                      const targetAms = amsData.find(a => a.id === dryingPopoverAmsId);
                      const trayLoadedInThisAms = (targetAms?.tray ?? []).some(
                        tray => tray.state === 11,
                      );
                      const rotate = dryingRotateTray && !trayLoadedInThisAms;
                      if (dryingStartMode === 'now') {
                        startDryingMutation.mutate({
                          amsId: dryingPopoverAmsId,
                          temp: dryingTemp,
                          duration: dryingDuration,
                          filament: dryingFilament,
                          rotateTray: rotate,
                        });
                      } else {
                        const startAfter = computeStartAfter(dryingStartMode, dryingDelayMinutes, dryingStartAt);
                        if (startAfter) {
                          scheduleDryingMutation.mutate({
                            amsId: dryingPopoverAmsId,
                            temp: dryingTemp,
                            duration: dryingDuration,
                            filament: dryingFilament,
                            rotateTray: rotate,
                            startAfter,
                          });
                        }
                      }
                    }
                  }}
                  disabled={startDryingMutation.isPending || scheduleDryingMutation.isPending || (dryingStartMode === 'at_time' && !dryingStartAt)}
                  data-testid="drying-start-confirm"
                  className="w-full py-1.5 bg-bambu-green hover:bg-bambu-green/80 text-white text-xs font-medium rounded-lg transition-colors disabled:opacity-50"
                >
                  {dryingStartMode === 'now'
                    ? (startDryingMutation.isPending ? t('printers.drying.startingDrying') : t('printers.drying.start'))
                    : t('printers.drying.schedule')}
                </button>
              </div>
            </div>
            {/* Anchor arrow pointing at the flame button; a fixed sibling
                since the popover clips its own overflow. */}
            <div
              className="fixed z-[102] w-2.5 h-2.5 rotate-45 bg-bambu-dark-secondary border-bambu-dark-tertiary pointer-events-none"
              style={{
                left: dryingPopoverPos.left + dryingPopoverPos.arrowLeft - 5,
                top: dryingPopoverPos.anchorY - 5,
                ...(dryingPopoverPos.placement === 'above'
                  ? { borderRightWidth: 1, borderBottomWidth: 1 }
                  : { borderLeftWidth: 1, borderTopWidth: 1 }),
              }}
            />
          </>
        );
      })()}
    </Card>
  );
}

export function AddPrinterModal({
  onClose,
  onAdd,
  existingSerials,
}: {
  onClose: () => void;
  onAdd: (data: PrinterCreate) => void;
  existingSerials: string[];
}) {
  const { t } = useTranslation();
  const [form, setForm] = useState<PrinterCreate>({
    name: '',
    serial_number: '',
    ip_address: '',
    access_code: '',
    model: '',
    location: '',
    auto_archive: true,
  });

  // Discovery state
  const [discovering, setDiscovering] = useState(false);
  const [discovered, setDiscovered] = useState<DiscoveredPrinter[]>([]);
  const [discoveryError, setDiscoveryError] = useState('');
  const [hasScanned, setHasScanned] = useState(false);
  const [isDocker, setIsDocker] = useState(false);
  const [detectedSubnets, setDetectedSubnets] = useState<string[]>([]);
  const [subnet, setSubnet] = useState('');
  // Custom subnet — `__custom__` sentinel in the dropdown reveals a CIDR
  // text input so users can scan a subnet Bambuddy isn't directly on
  // (printer behind a router on a different L3 segment — SSDP multicast
  // won't cross that boundary, only an active unicast scan will). #1564
  const [customSubnet, setCustomSubnet] = useState('');
  const [useCustomSubnet, setUseCustomSubnet] = useState(false);
  const [scanProgress, setScanProgress] = useState({ scanned: 0, total: 0 });
  const [showDiagnostic, setShowDiagnostic] = useState(false);

  // Setup-time pre-flight: run the connection diagnostic on save and warn
  // (not block) when checks fail, so the user doesn't add a printer that
  // immediately shows offline. checkingSave = probe in flight; saveWarning =
  // failed result awaiting an explicit "save anyway".
  const [checkingSave, setCheckingSave] = useState(false);
  const [saveWarning, setSaveWarning] = useState<PrinterDiagnosticResult | null>(null);

  // Fetch discovery info on mount + restore the last custom CIDR the user
  // typed (kept in localStorage so they don't retype `10.1.1.0/24` every
  // time they open this modal).
  useEffect(() => {
    discoveryApi.getInfo().then(info => {
      setIsDocker(info.is_docker);
      if (info.subnets.length > 0) {
        setDetectedSubnets(info.subnets);
        setSubnet(info.subnets[0]);
      }
    }).catch(() => {
      // Ignore errors, assume not Docker
    });
    try {
      const saved = localStorage.getItem('bambuddy.discovery.customSubnet');
      if (saved) setCustomSubnet(saved);
    } catch {
      // localStorage unavailable (private mode, quota); recall is opportunistic
    }
  }, []);

  // Filter out already-added printers
  const newPrinters = discovered.filter(p => !existingSerials.includes(p.serial));

  const handleAddSubmit = async (e: React.FormEvent) => {
    e.preventDefault();
    setCheckingSave(true);
    try {
      const result = await api.diagnoseConnection({
        ip_address: form.ip_address.trim(),
        serial_number: form.serial_number.trim() || undefined,
        access_code: form.access_code || undefined,
      });
      if (result.checks.some((c) => c.status === 'fail')) {
        setSaveWarning(result);
        return;
      }
    } catch {
      // Diagnostic infrastructure failed — never block the save on it.
    } finally {
      setCheckingSave(false);
    }
    onAdd(form);
  };

  const startDiscovery = async () => {
    setDiscoveryError('');
    setDiscovered([]);
    setDiscovering(true);
    setHasScanned(false);
    setScanProgress({ scanned: 0, total: 0 });

    // Native installs fall back to subnet scanning when the user picks
    // "Custom" — SSDP can't reach a printer on a different L3 segment
    // (#1564). Docker mode always uses subnet scan (multicast unavailable).
    const scanCidr = useCustomSubnet ? customSubnet.trim() : subnet;
    const wantsSubnetScan = isDocker || useCustomSubnet;

    if (wantsSubnetScan && useCustomSubnet) {
      try {
        localStorage.setItem('bambuddy.discovery.customSubnet', scanCidr);
      } catch {
        // localStorage write best-effort; user just retypes next time
      }
    }

    try {
      if (wantsSubnetScan) {
        await discoveryApi.startSubnetScan(scanCidr);

        // Poll for scan status and results
        const pollInterval = setInterval(async () => {
          try {
            const status = await discoveryApi.getScanStatus();
            setScanProgress({ scanned: status.scanned, total: status.total });

            const printers = await discoveryApi.getDiscoveredPrinters();
            setDiscovered(printers);

            if (!status.running) {
              clearInterval(pollInterval);
              setDiscovering(false);
              setHasScanned(true);
            }
          } catch (e) {
            console.error('Failed to get scan status:', e);
          }
        }, 500);
      } else {
        // Use SSDP discovery for native installs
        await discoveryApi.startDiscovery(10);

        // Poll for discovered printers every second
        const pollInterval = setInterval(async () => {
          try {
            const printers = await discoveryApi.getDiscoveredPrinters();
            setDiscovered(printers);
          } catch (e) {
            console.error('Failed to get discovered printers:', e);
          }
        }, 1000);

        // Stop after 10 seconds
        setTimeout(async () => {
          clearInterval(pollInterval);
          try {
            await discoveryApi.stopDiscovery();
          } catch {
            // Ignore stop errors
          }
          setDiscovering(false);
          setHasScanned(true);
          // Final fetch
          try {
            const printers = await discoveryApi.getDiscoveredPrinters();
            setDiscovered(printers);
          } catch (e) {
            console.error('Failed to get final discovered printers:', e);
          }
        }, 10000);
      }
    } catch (e) {
      console.error('Failed to start discovery:', e);
      setDiscoveryError(e instanceof Error ? e.message : t('printers.discovery.failedToStart'));
      setDiscovering(false);
      setHasScanned(true);
    }
  };

  // Reuse module-level mapModelCode

  const selectPrinter = (printer: DiscoveredPrinter) => {
    // Don't pre-fill serial if it's a placeholder (unknown-*) - user needs to enter actual serial
    const serialNumber = printer.serial.startsWith('unknown-') ? '' : printer.serial;
    setForm({
      ...form,
      name: printer.name || '',
      serial_number: serialNumber,
      ip_address: printer.ip_address,
      model: mapModelCode(printer.model),
    });
    // Clear discovery results after selection
    setDiscovered([]);
  };

  // Cleanup discovery on unmount
  useEffect(() => {
    return () => {
      discoveryApi.stopDiscovery().catch(() => {});
      discoveryApi.stopSubnetScan().catch(() => {});
    };
  }, []);

  // Close on Escape key
  useEffect(() => {
    const handleKeyDown = (e: KeyboardEvent) => {
      if (e.key === 'Escape') onClose();
    };
    window.addEventListener('keydown', handleKeyDown);
    return () => window.removeEventListener('keydown', handleKeyDown);
  }, [onClose]);

  return (
    <>
    <div
      className="fixed inset-0 bg-black/50 flex items-start sm:items-center justify-center z-50 p-4 overflow-y-auto"
      onClick={onClose}
    >
      <Card className="w-full max-w-md my-auto max-h-[calc(100vh-2rem)] overflow-y-auto" onClick={(e: React.MouseEvent) => e.stopPropagation()}>
        <CardContent>
          <h2 className="text-xl font-semibold mb-4">{t('printers.addPrinter')}</h2>

          {/* Discovery Section */}
          <div className="mb-4 pb-4 border-b border-bambu-dark-tertiary">
            {/* Subnet picker — always visible. The dropdown lists detected
                interface subnets and a "Custom..." sentinel that reveals
                a CIDR text input for printers on a different L3 segment
                (router, VLAN, etc.). #1564 */}
            <div className="mb-3">
              <label className="block text-sm text-bambu-gray mb-1">
                {t('printers.discovery.subnetToScan')}
              </label>
              {detectedSubnets.length > 0 ? (
                <select
                  className="w-full px-3 py-2 bg-bambu-dark border border-bambu-dark-tertiary rounded-lg text-white focus:border-bambu-green focus:outline-none text-sm"
                  value={useCustomSubnet ? '__custom__' : subnet}
                  onChange={(e) => {
                    if (e.target.value === '__custom__') {
                      setUseCustomSubnet(true);
                    } else {
                      setUseCustomSubnet(false);
                      setSubnet(e.target.value);
                    }
                  }}
                  disabled={discovering}
                >
                  {detectedSubnets.map(s => (
                    <option key={s} value={s}>{s}</option>
                  ))}
                  <option value="__custom__">{t('printers.discovery.customSubnetOption')}</option>
                </select>
              ) : (
                <input
                  type="text"
                  className="w-full px-3 py-2 bg-bambu-dark border border-bambu-dark-tertiary rounded-lg text-white focus:border-bambu-green focus:outline-none text-sm"
                  value={subnet}
                  onChange={(e) => setSubnet(e.target.value)}
                  placeholder="192.168.1.0/24"
                  disabled={discovering}
                />
              )}
              {useCustomSubnet && (
                <input
                  type="text"
                  aria-label={t('printers.discovery.customSubnetLabel')}
                  className="mt-2 w-full px-3 py-2 bg-bambu-dark border border-bambu-dark-tertiary rounded-lg text-white focus:border-bambu-green focus:outline-none text-sm"
                  value={customSubnet}
                  onChange={(e) => setCustomSubnet(e.target.value)}
                  placeholder="10.1.1.0/24"
                  disabled={discovering}
                />
              )}
              <p className="mt-1 text-xs text-bambu-gray">
                {isDocker
                  ? t('printers.discovery.dockerNote')
                  : t('printers.discovery.customSubnetNote')}
              </p>
            </div>


            <Button
              type="button"
              variant="secondary"
              onClick={startDiscovery}
              disabled={discovering}
              className="w-full"
            >
              {discovering ? (
                <>
                  <Loader2 className="w-4 h-4 animate-spin" />
                  {(isDocker || useCustomSubnet) && scanProgress.total > 0
                    ? t('printers.discovery.scanProgress', { scanned: scanProgress.scanned, total: scanProgress.total })
                    : t('printers.discovery.scanning')}
                </>
              ) : (
                <>
                  <Search className="w-4 h-4" />
                  {(isDocker || useCustomSubnet) ? t('printers.discovery.scanSubnet') : t('printers.discovery.discoverNetwork')}
                </>
              )}
            </Button>

            {discoveryError && (
              <div className="mt-2 text-sm text-red-700 dark:text-red-400">{discoveryError}</div>
            )}

            {newPrinters.length > 0 && (
              <div className="mt-3 space-y-2 max-h-40 overflow-y-auto">
                {newPrinters.map((printer) => (
                  <div
                    key={printer.serial}
                    className="flex items-center justify-between p-2 bg-bambu-dark rounded-lg hover:bg-bambu-dark-secondary cursor-pointer transition-colors"
                    onClick={() => selectPrinter(printer)}
                  >
                    <div className="min-w-0 flex-1">
                      <p className="font-medium text-white text-sm truncate">
                        {printer.name || printer.serial}
                      </p>
                      <p className="text-xs text-bambu-gray truncate">
                        {mapModelCode(printer.model) || t('printers.discovery.unknown')} • {printer.ip_address}
                        {printer.serial.startsWith('unknown-') && (
                          <span className="text-yellow-500"> • {t('printers.discovery.serialRequired')}</span>
                        )}
                      </p>
                    </div>
                    <ChevronDown className="w-4 h-4 text-bambu-gray -rotate-90 flex-shrink-0 ml-2" />
                  </div>
                ))}
              </div>
            )}

            {discovering && (
              <p className="mt-2 text-sm text-bambu-gray text-center">
                {(isDocker || useCustomSubnet) ? t('printers.discovery.scanningSubnet') : t('printers.discovery.scanningNetwork')}
              </p>
            )}

            {hasScanned && !discovering && discovered.length === 0 && (
              <p className="mt-2 text-sm text-bambu-gray text-center">
                {(isDocker || useCustomSubnet) ? t('printers.discovery.noPrintersFoundSubnet') : t('printers.discovery.noPrintersFoundNetwork')}
              </p>
            )}

            {hasScanned && !discovering && discovered.length > 0 && newPrinters.length === 0 && (
              <p className="mt-2 text-sm text-bambu-gray text-center">
                {t('printers.discovery.allConfigured')}
              </p>
            )}
          </div>
          <form onSubmit={handleAddSubmit} className="space-y-4">
            <div>
              <label className="block text-sm text-bambu-gray mb-1">{t('printers.name')}</label>
              <input
                type="text"
                required
                className="w-full px-3 py-2 bg-bambu-dark border border-bambu-dark-tertiary rounded-lg text-white focus:border-bambu-green focus:outline-none"
                value={form.name}
                onChange={(e) => setForm({ ...form, name: e.target.value })}
                placeholder={t('printers.modal.myPrinter')}
              />
            </div>
            <div>
              <label className="block text-sm text-bambu-gray mb-1">{t('printers.ipAddress')}</label>
              <input
                type="text"
                required
                pattern="(\d{1,3}(\.\d{1,3}){3}|[a-zA-Z0-9]([a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])?(\.[a-zA-Z0-9]([a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])?)*)"
                className="w-full px-3 py-2 bg-bambu-dark border border-bambu-dark-tertiary rounded-lg text-white focus:border-bambu-green focus:outline-none"
                value={form.ip_address}
                onChange={(e) => setForm({ ...form, ip_address: e.target.value })}
                placeholder="192.168.1.100 or printer.local"
              />
            </div>
            <div>
              <label className="block text-sm text-bambu-gray mb-1">{t('printers.serialNumber')}</label>
              <input
                type="text"
                required
                className="w-full px-3 py-2 bg-bambu-dark border border-bambu-dark-tertiary rounded-lg text-white focus:border-bambu-green focus:outline-none"
                value={form.serial_number}
                onChange={(e) => setForm({ ...form, serial_number: e.target.value })}
                placeholder="01P00A000000000"
              />
            </div>
            <div>
              <label className="block text-sm text-bambu-gray mb-1">{t('printers.accessCode')}</label>
              <input
                type="password"
                required
                className="w-full px-3 py-2 bg-bambu-dark border border-bambu-dark-tertiary rounded-lg text-white focus:border-bambu-green focus:outline-none"
                value={form.access_code}
                onChange={(e) => setForm({ ...form, access_code: e.target.value })}
                placeholder={t('printers.modal.fromPrinterSettings')}
              />
            </div>
            <div>
              <label className="block text-sm text-bambu-gray mb-1">{t('printers.modal.modelOptional')}</label>
              <select
                className="w-full px-3 py-2 bg-bambu-dark border border-bambu-dark-tertiary rounded-lg text-white focus:border-bambu-green focus:outline-none"
                value={form.model || ''}
                onChange={(e) => setForm({ ...form, model: e.target.value })}
              >
                <option value="">{t('printers.modal.selectModel')}</option>
                <optgroup label="A1 Series">
                  <option value="A1">A1</option>
                  <option value="A1 Mini">A1 Mini</option>
                </optgroup>
                <optgroup label="A2 Series">
                  <option value="A2L">A2L</option>
                </optgroup>
                <optgroup label="H2 Series">
                  <option value="H2C">H2C</option>
                  <option value="H2D">H2D</option>
                  <option value="H2D Pro">H2D Pro</option>
                  <option value="H2S">H2S</option>
                </optgroup>
                <optgroup label="P Series">
                  <option value="P1P">P1P</option>
                  <option value="P1S">P1S</option>
                  <option value="P2S">P2S</option>
                </optgroup>
                <optgroup label="X1 Series">
                  <option value="X1">X1</option>
                  <option value="X1C">X1 Carbon</option>
                  <option value="X1E">X1E</option>
                </optgroup>
                <optgroup label="X2 Series">
                  <option value="X2D">X2D</option>
                </optgroup>
              </select>
            </div>
            <div>
              <label className="block text-sm text-bambu-gray mb-1">{t('printers.modal.locationGroup')}</label>
              <input
                type="text"
                className="w-full px-3 py-2 bg-bambu-dark border border-bambu-dark-tertiary rounded-lg text-white focus:border-bambu-green focus:outline-none"
                value={form.location || ''}
                onChange={(e) => setForm({ ...form, location: e.target.value })}
                placeholder={t('printers.modal.locationPlaceholder')}
              />
              <p className="text-xs text-bambu-gray mt-1">{t('printers.locationHelp')}</p>
            </div>
            <div className="flex items-center gap-2">
              <input
                type="checkbox"
                id="auto_archive"
                checked={form.auto_archive}
                onChange={(e) => setForm({ ...form, auto_archive: e.target.checked })}
                className="rounded border-bambu-dark-tertiary bg-bambu-dark text-bambu-green focus:ring-bambu-green"
              />
              <label htmlFor="auto_archive" className="text-sm text-bambu-gray">
                {t('printers.modal.autoArchiveLabel')}
              </label>
            </div>
            <button
              type="button"
              onClick={() => setShowDiagnostic(true)}
              disabled={!form.ip_address.trim()}
              className="w-full flex items-center justify-center gap-2 px-3 py-2 text-sm text-bambu-gray hover:text-white disabled:opacity-40 disabled:cursor-not-allowed border border-bambu-dark-tertiary rounded-lg transition-colors"
            >
              <Stethoscope className="w-4 h-4" />
              {t('diagnostic.runButton')}
            </button>
            {saveWarning ? (
              <div className="rounded-lg bg-amber-50 dark:bg-amber-500/10 border border-amber-300 dark:border-amber-500/30 p-3 space-y-3">
                <div className="flex items-start gap-2">
                  <AlertTriangle className="w-4 h-4 mt-0.5 flex-shrink-0 text-amber-600 dark:text-amber-400" />
                  <p className="text-sm text-amber-700 dark:text-amber-300">{t('printers.addPreflight.warning')}</p>
                </div>
                <DiagnosticChecklist result={saveWarning} />
                <div className="flex gap-3">
                  <Button
                    type="button"
                    variant="secondary"
                    onClick={() => setSaveWarning(null)}
                    className="flex-1"
                  >
                    {t('printers.addPreflight.back')}
                  </Button>
                  <Button type="button" onClick={() => onAdd(form)} className="flex-1">
                    {t('printers.addPreflight.saveAnyway')}
                  </Button>
                </div>
              </div>
            ) : (
              <div className="flex gap-3 pt-2">
                <Button type="button" variant="secondary" onClick={onClose} className="flex-1">
                  {t('common.cancel')}
                </Button>
                <Button type="submit" disabled={checkingSave} className="flex-1">
                  {checkingSave ? t('printers.addPreflight.checking') : t('printers.addPrinter')}
                </Button>
              </div>
            )}
          </form>
        </CardContent>
      </Card>
    </div>
    {showDiagnostic && (
      <ConnectionDiagnosticModal
        connection={{
          ip_address: form.ip_address.trim(),
          serial_number: form.serial_number.trim() || undefined,
          access_code: form.access_code || undefined,
        }}
        printerName={form.name || null}
        onClose={() => setShowDiagnostic(false)}
      />
    )}
    </>
  );
}

function FirmwareUpdateModal({
  printer,
  firmwareInfo,
  onClose,
}: {
  printer: Printer;
  firmwareInfo: FirmwareUpdateInfo;
  onClose: () => void;
}) {
  const { t } = useTranslation();
  const queryClient = useQueryClient();
  const { showToast } = useToast();
  const { hasPermission } = useAuth();
  const canUpdate = hasPermission('firmware:update');
  const [uploadStatus, setUploadStatus] = useState<FirmwareUploadStatus | null>(null);
  const [isUploading, setIsUploading] = useState(false);
  const [pollInterval, setPollInterval] = useState<NodeJS.Timeout | null>(null);
  const [selectedVersion, setSelectedVersion] = useState<string | null>(
    firmwareInfo.update_available ? firmwareInfo.latest_version : null,
  );

  // Prepare check query — runs when a version is selected and user can update
  const { data: prepareInfo, isLoading: isPreparing } = useQuery({
    queryKey: ['firmwarePrepare', printer.id, selectedVersion],
    queryFn: () => firmwareApi.prepareUpload(printer.id, selectedVersion ?? undefined),
    staleTime: 30000,
    enabled: !!selectedVersion && canUpdate && !isUploading,
  });

  // Start upload mutation
  const uploadMutation = useMutation({
    mutationFn: () => firmwareApi.startUpload(printer.id, selectedVersion ?? undefined),
    onSuccess: () => {
      setIsUploading(true);
      // Start polling for status
      const interval = setInterval(async () => {
        try {
          const status = await firmwareApi.getUploadStatus(printer.id);
          setUploadStatus(status);
          if (status.status === 'complete' || status.status === 'error') {
            clearInterval(interval);
            setPollInterval(null);
            setIsUploading(false);
            if (status.status === 'complete') {
              showToast(t('printers.firmwareModal.uploadedToast'), 'success');
              queryClient.invalidateQueries({ queryKey: ['firmwareUpdate', printer.id] });
            }
          }
        } catch {
          // Ignore errors during polling
        }
      }, 2000);
      setPollInterval(interval);
    },
    onError: (error: Error) => {
      showToast(t('printers.firmwareModal.uploadFailed', { error: error.message }), 'error');
      setIsUploading(false);
    },
  });

  // Cleanup on unmount
  useEffect(() => {
    return () => {
      if (pollInterval) clearInterval(pollInterval);
    };
  }, [pollInterval]);

  const handleStartUpload = () => {
    setUploadStatus(null);
    uploadMutation.mutate();
  };

  return (
    <div className="fixed inset-0 bg-black/50 flex items-center justify-center z-50">
      <Card className="w-full max-w-md mx-4">
        <CardContent>
          <div className="flex items-start gap-3 mb-4">
            <div className={`p-2 rounded-full ${firmwareInfo.update_available ? 'bg-orange-100 dark:bg-orange-500/20' : 'bg-status-ok/20'}`}>
              {firmwareInfo.update_available
                ? <Download className="w-5 h-5 text-orange-600 dark:text-orange-400" />
                : <CheckCircle className="w-5 h-5 text-status-ok" />}
            </div>
            <div className="flex-1">
              <h3 className="text-lg font-semibold text-white">
                {firmwareInfo.update_available ? t('printers.firmwareModal.title') : t('printers.firmwareModal.titleUpToDate')}
              </h3>
              <p className="text-sm text-bambu-gray mt-1">
                {printer.name}
              </p>
            </div>
          </div>

          {/* Version Info */}
          {(() => {
            const selectedEntry = selectedVersion
              ? firmwareInfo.available_versions?.find((v) => v.version === selectedVersion)
              : null;
            const displayVersion = selectedVersion ?? firmwareInfo.latest_version;
            const displayNotes = selectedEntry?.release_notes ?? firmwareInfo.release_notes;
            const showSecondLine = !!displayVersion && displayVersion !== firmwareInfo.current_version;
            return (
              <div className="bg-bambu-dark rounded-lg p-3 mb-4">
                <div className="flex justify-between items-center text-sm">
                  <span className="text-bambu-gray">{t('printers.firmwareModal.currentVersion')}</span>
                  <span className={`font-mono ${showSecondLine ? 'text-white' : 'text-status-ok'}`}>
                    {firmwareInfo.current_version || t('common.unknown')}
                  </span>
                </div>
                {showSecondLine && (
                  <div className="flex justify-between items-center text-sm mt-1">
                    <span className="text-bambu-gray">{t('printers.firmwareModal.latestVersion')}</span>
                    <span className="text-orange-700 dark:text-orange-400 font-mono">{displayVersion}</span>
                  </div>
                )}
                {displayNotes && (
                  <details className="mt-3 text-sm" open={!showSecondLine} key={displayVersion ?? 'none'}>
                    <summary className={`cursor-pointer hover:underline ${showSecondLine ? 'text-orange-700 dark:text-orange-400' : 'text-status-ok'}`}>
                      {t('printers.firmwareModal.releaseNotes')}
                    </summary>
                    <div className="mt-2 text-bambu-gray text-xs max-h-40 overflow-y-auto whitespace-pre-wrap">
                      {displayNotes}
                    </div>
                  </details>
                )}
              </div>
            );
          })()}

          {/* Available versions list */}
          {firmwareInfo.available_versions && firmwareInfo.available_versions.length > 0 && !isUploading && uploadStatus?.status !== 'complete' && (
            <div className="mb-4">
              <div className="text-xs text-bambu-gray mb-2">{t('printers.firmwareModal.availableVersions')}</div>
              <div className="max-h-56 overflow-y-auto border border-bambu-dark-tertiary rounded-lg divide-y divide-bambu-dark-tertiary">
                {firmwareInfo.available_versions.map((v) => {
                  const isCurrent = firmwareInfo.current_version === v.version;
                  const isSelected = selectedVersion === v.version;
                  const cmp = firmwareInfo.current_version
                    ? compareFwVersions(v.version, firmwareInfo.current_version)
                    : 0;
                  const relLabel = isCurrent
                    ? t('printers.firmwareModal.currentBadge')
                    : cmp > 0
                      ? t('printers.firmwareModal.newerBadge')
                      : t('printers.firmwareModal.olderBadge');
                  const relClass = isCurrent
                    ? 'text-bambu-gray'
                    : cmp > 0
                      ? 'text-orange-700 dark:text-orange-400'
                      : 'text-blue-700 dark:text-blue-400';
                  return (
                    <button
                      key={v.version}
                      type="button"
                      disabled={!v.file_available || !canUpdate || isCurrent}
                      onClick={() => setSelectedVersion(v.version)}
                      className={`w-full text-left px-3 py-2 text-sm flex items-center justify-between gap-2 transition-colors ${
                        isSelected ? 'bg-orange-50 dark:bg-orange-500/10' : 'hover:bg-bambu-dark'
                      } ${!v.file_available || !canUpdate || isCurrent ? 'opacity-60 cursor-not-allowed' : 'cursor-pointer'}`}
                    >
                      <div className="flex items-center gap-2 min-w-0">
                        <span className="font-mono text-white">{v.version}</span>
                        <span className={`text-xs ${relClass}`}>{relLabel}</span>
                      </div>
                      <span className={`text-xs px-2 py-0.5 rounded-full ${
                        isCurrent
                          ? 'bg-blue-50 dark:bg-blue-500/15 text-blue-700 dark:text-blue-400 border border-blue-300 dark:border-blue-500/30'
                          : v.file_available
                            ? 'bg-bambu-green/15 text-bambu-green border border-bambu-green/30'
                            : 'bg-bambu-gray/10 text-bambu-gray border border-bambu-gray/30'
                      }`}>
                        {isCurrent
                          ? t('printers.firmwareModal.installed')
                          : v.file_available
                          ? t('printers.firmwareModal.usable')
                          : t('printers.firmwareModal.unavailable')}
                      </span>
                    </button>
                  );
                })}
              </div>
            </div>
          )}

          {/* Status / Progress (only when a version is selected) */}
          {!selectedVersion ? null : isPreparing ? (
            <div className="flex items-center gap-2 text-bambu-gray text-sm mb-4">
              <Loader2 className="w-4 h-4 animate-spin" />
              {t('printers.firmwareModal.checkingPrereqs')}
            </div>
          ) : prepareInfo && !isUploading && !uploadStatus ? (
            <div className="mb-4">
              {prepareInfo.can_proceed ? (
                <div className="flex items-center gap-2 text-bambu-green text-sm">
                  <Box className="w-4 h-4" />
                  {t('printers.firmwareModal.sdCardReady')}
                </div>
              ) : (
                <div className="space-y-1">
                  {prepareInfo.errors.map((error, i) => (
                    <div key={i} className="flex items-center gap-2 text-red-700 dark:text-red-400 text-sm">
                      <AlertCircle className="w-4 h-4 flex-shrink-0" />
                      {error}
                    </div>
                  ))}
                </div>
              )}
            </div>
          ) : null}

          {/* Upload Progress */}
          {(isUploading || uploadStatus) && uploadStatus && (
            <div className="mb-4">
              <div className="flex items-center justify-between text-sm mb-1">
                <span className="text-bambu-gray capitalize">{uploadStatus.status}</span>
                <span className="text-white">{uploadStatus.progress}%</span>
              </div>
              <div className="w-full bg-bambu-dark-tertiary rounded-full h-2">
                <div
                  className={`h-2 rounded-full transition-all ${
                    uploadStatus.status === 'error' ? 'bg-status-error' :
                    uploadStatus.status === 'complete' ? 'bg-status-ok' : 'bg-orange-500'
                  } ${uploadStatus.status === 'uploading' ? 'animate-pulse' : ''}`}
                  style={{ width: `${uploadStatus.progress}%` }}
                />
              </div>
              <p className="text-xs text-bambu-gray mt-1">{uploadStatus.message}</p>
              {uploadStatus.error && (
                <p className="text-xs text-red-700 dark:text-red-400 mt-1">{uploadStatus.error}</p>
              )}
            </div>
          )}

          {/* Success Message */}
          {uploadStatus?.status === 'complete' && (
            <div className="bg-bambu-green/10 border border-bambu-green/30 rounded-lg p-3 mb-4">
              <p className="text-sm text-bambu-green font-medium mb-2">
                {t('printers.firmwareModal.uploadedSuccess')}
              </p>
              <p className="text-xs text-bambu-gray">
                {t('printers.firmwareModal.applyInstructions')}
              </p>
              <ol className="text-xs text-bambu-gray mt-1 list-decimal list-inside space-y-1">
                <li dangerouslySetInnerHTML={{ __html: t('printers.firmwareModal.step1') }} />
                <li dangerouslySetInnerHTML={{ __html: t('printers.firmwareModal.step2') }} />
                <li dangerouslySetInnerHTML={{ __html: t('printers.firmwareModal.step3') }} />
                <li>{t('printers.firmwareModal.step4')}</li>
              </ol>
            </div>
          )}

          {/* Buttons */}
          <div className="flex gap-2 justify-end">
            <Button variant="secondary" onClick={onClose}>
              {uploadStatus?.status === 'complete' ? t('printers.firmwareModal.done') : t('common.cancel')}
            </Button>
            {prepareInfo?.can_proceed && !isUploading && uploadStatus?.status !== 'complete' && canUpdate && (
              <Button
                onClick={handleStartUpload}
                disabled={uploadMutation.isPending}
              >
                {uploadMutation.isPending ? (
                  <>
                    <Loader2 className="w-4 h-4 animate-spin mr-2" />
                    {t('printers.firmwareModal.starting')}
                  </>
                ) : (
                  <>
                    <Download className="w-4 h-4 mr-2" />
                    {t('printers.firmwareModal.uploadFirmware')}
                  </>
                )}
              </Button>
            )}
          </div>
        </CardContent>
      </Card>
    </div>
  );
}

function EditPrinterModal({
  printer,
  onClose,
}: {
  printer: Printer;
  onClose: () => void;
}) {
  const { t } = useTranslation();
  const queryClient = useQueryClient();
  const { showToast } = useToast();
  const [form, setForm] = useState({
    name: printer.name,
    ip_address: printer.ip_address,
    access_code: '',
    model: printer.model || '',
    location: printer.location || '',
    auto_archive: printer.auto_archive,
    is_active: printer.is_active,
  });

  // Setup-time pre-flight — same warn-on-save as the Add-Printer dialog, so an
  // edit that breaks connectivity (e.g. a mistyped IP) is caught before save.
  const [checkingSave, setCheckingSave] = useState(false);
  const [saveWarning, setSaveWarning] = useState<PrinterDiagnosticResult | null>(null);

  const updateMutation = useMutation({
    mutationFn: (data: Partial<PrinterCreate>) => api.updatePrinter(printer.id, data),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: ['printers'] });
      queryClient.invalidateQueries({ queryKey: ['printerStatus', printer.id] });
      onClose();
    },
    onError: (error: Error) => showToast(error.message || t('printers.toast.failedToUpdate'), 'error'),
  });

  // Close on Escape key
  useEffect(() => {
    const handleKeyDown = (e: KeyboardEvent) => {
      if (e.key === 'Escape') onClose();
    };
    window.addEventListener('keydown', handleKeyDown);
    return () => window.removeEventListener('keydown', handleKeyDown);
  }, [onClose]);

  const doSave = () => {
    const data: Partial<PrinterCreate> = {
      name: form.name,
      ip_address: form.ip_address,
      model: form.model || undefined,
      location: form.location || undefined,
      auto_archive: form.auto_archive,
      is_active: form.is_active,
    };
    // Only include access_code if it was changed
    if (form.access_code) {
      data.access_code = form.access_code;
    }
    updateMutation.mutate(data);
  };

  const handleSubmit = async (e: React.FormEvent) => {
    e.preventDefault();
    setCheckingSave(true);
    try {
      const result = await api.diagnoseConnection({
        ip_address: form.ip_address.trim(),
        serial_number: printer.serial_number,
        access_code: form.access_code || undefined,
      });
      if (result.checks.some((c) => c.status === 'fail')) {
        setSaveWarning(result);
        return;
      }
    } catch {
      // Diagnostic infrastructure failed — never block the save on it.
    } finally {
      setCheckingSave(false);
    }
    doSave();
  };

  return (
    <div
      className="fixed inset-0 bg-black/50 flex items-start sm:items-center justify-center z-50 p-4 overflow-y-auto"
      onClick={onClose}
    >
      <Card className="w-full max-w-md my-auto max-h-[calc(100vh-2rem)] overflow-y-auto" onClick={(e: React.MouseEvent) => e.stopPropagation()}>
        <CardContent>
          <h2 className="text-xl font-semibold mb-4">{t('printers.editPrinter')}</h2>
          <form onSubmit={handleSubmit} className="space-y-4">
            <div>
              <label className="block text-sm text-bambu-gray mb-1">{t('printers.name')}</label>
              <input
                type="text"
                required
                className="w-full px-3 py-2 bg-bambu-dark border border-bambu-dark-tertiary rounded-lg text-white focus:border-bambu-green focus:outline-none"
                value={form.name}
                onChange={(e) => setForm({ ...form, name: e.target.value })}
                placeholder={t('printers.modal.myPrinter')}
              />
            </div>
            <div>
              <label className="block text-sm text-bambu-gray mb-1">{t('printers.ipAddress')}</label>
              <input
                type="text"
                required
                pattern="(\d{1,3}(\.\d{1,3}){3}|[a-zA-Z0-9]([a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])?(\.[a-zA-Z0-9]([a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])?)*)"
                className="w-full px-3 py-2 bg-bambu-dark border border-bambu-dark-tertiary rounded-lg text-white focus:border-bambu-green focus:outline-none"
                value={form.ip_address}
                onChange={(e) => setForm({ ...form, ip_address: e.target.value })}
                placeholder="192.168.1.100 or printer.local"
              />
            </div>
            <div>
              <label className="block text-sm text-bambu-gray mb-1">{t('printers.serialNumber')}</label>
              <input
                type="text"
                disabled
                className="w-full px-3 py-2 bg-bambu-dark border border-bambu-dark-tertiary rounded-lg text-bambu-gray cursor-not-allowed"
                value={printer.serial_number}
              />
              <p className="text-xs text-bambu-gray mt-1">{t('printers.serialCannotBeChanged')}</p>
            </div>
            <div>
              <label className="block text-sm text-bambu-gray mb-1">{t('printers.accessCode')}</label>
              <input
                type="password"
                className="w-full px-3 py-2 bg-bambu-dark border border-bambu-dark-tertiary rounded-lg text-white focus:border-bambu-green focus:outline-none"
                value={form.access_code}
                onChange={(e) => setForm({ ...form, access_code: e.target.value })}
                placeholder={t('printers.accessCodePlaceholder')}
              />
            </div>
            <div>
              <label className="block text-sm text-bambu-gray mb-1">{t('printers.model')}</label>
              <select
                className="w-full px-3 py-2 bg-bambu-dark border border-bambu-dark-tertiary rounded-lg text-white focus:border-bambu-green focus:outline-none"
                value={form.model}
                onChange={(e) => setForm({ ...form, model: e.target.value })}
              >
                <option value="">{t('printers.modal.selectModel')}</option>
                <optgroup label="A1 Series">
                  <option value="A1">A1</option>
                  <option value="A1 Mini">A1 Mini</option>
                </optgroup>
                <optgroup label="A2 Series">
                  <option value="A2L">A2L</option>
                </optgroup>
                <optgroup label="H2 Series">
                  <option value="H2C">H2C</option>
                  <option value="H2D">H2D</option>
                  <option value="H2D Pro">H2D Pro</option>
                  <option value="H2S">H2S</option>
                </optgroup>
                <optgroup label="P Series">
                  <option value="P1P">P1P</option>
                  <option value="P1S">P1S</option>
                  <option value="P2S">P2S</option>
                </optgroup>
                <optgroup label="X1 Series">
                  <option value="X1">X1</option>
                  <option value="X1C">X1 Carbon</option>
                  <option value="X1E">X1E</option>
                </optgroup>
                <optgroup label="X2 Series">
                  <option value="X2D">X2D</option>
                </optgroup>
              </select>
            </div>
            <div>
              <label className="block text-sm text-bambu-gray mb-1">Location / Group</label>
              <input
                type="text"
                className="w-full px-3 py-2 bg-bambu-dark border border-bambu-dark-tertiary rounded-lg text-white focus:border-bambu-green focus:outline-none"
                value={form.location}
                onChange={(e) => setForm({ ...form, location: e.target.value })}
                placeholder={t('printers.modal.locationPlaceholder')}
              />
              <p className="text-xs text-bambu-gray mt-1">{t('printers.locationHelp')}</p>
            </div>
            <div className="flex items-center gap-2">
              <input
                type="checkbox"
                id="edit_auto_archive"
                checked={form.auto_archive}
                onChange={(e) => setForm({ ...form, auto_archive: e.target.checked })}
                className="rounded border-bambu-dark-tertiary bg-bambu-dark text-bambu-green focus:ring-bambu-green"
              />
              <label htmlFor="edit_auto_archive" className="text-sm text-bambu-gray">
                {t('printers.modal.autoArchiveLabel')}
              </label>
            </div>
            {/* Maintenance Mode toggle (#1476) — checkbox is the inverse of
                is_active because the user-facing concept is "is this printer
                in maintenance" not "is it active". */}
            <div>
              <div className="flex items-center gap-2">
                <input
                  type="checkbox"
                  id="edit_maintenance_mode"
                  checked={!form.is_active}
                  onChange={(e) => setForm({ ...form, is_active: !e.target.checked })}
                  className="rounded border-bambu-dark-tertiary bg-bambu-dark text-amber-400 focus:ring-amber-400"
                />
                <label htmlFor="edit_maintenance_mode" className="text-sm text-bambu-gray flex items-center gap-1.5">
                  <Wrench className="w-3.5 h-3.5 text-amber-600 dark:text-amber-400" />
                  {t('printers.maintenance.editFieldLabel')}
                </label>
              </div>
              <p className="text-xs text-bambu-gray/70 mt-1 ml-6">
                {t('printers.maintenance.editFieldHelp')}
              </p>
            </div>
            {saveWarning ? (
              <div className="rounded-lg bg-amber-50 dark:bg-amber-500/10 border border-amber-300 dark:border-amber-500/30 p-3 space-y-3">
                <div className="flex items-start gap-2">
                  <AlertTriangle className="w-4 h-4 mt-0.5 flex-shrink-0 text-amber-600 dark:text-amber-400" />
                  <p className="text-sm text-amber-700 dark:text-amber-300">{t('printers.addPreflight.warning')}</p>
                </div>
                <DiagnosticChecklist result={saveWarning} />
                <div className="flex gap-3">
                  <Button
                    type="button"
                    variant="secondary"
                    onClick={() => setSaveWarning(null)}
                    className="flex-1"
                  >
                    {t('printers.addPreflight.back')}
                  </Button>
                  <Button
                    type="button"
                    onClick={doSave}
                    className="flex-1"
                    disabled={updateMutation.isPending}
                  >
                    {t('printers.addPreflight.saveAnyway')}
                  </Button>
                </div>
              </div>
            ) : (
              <div className="flex gap-3 pt-4">
                <Button type="button" variant="secondary" onClick={onClose} className="flex-1">
                  {t('common.cancel')}
                </Button>
                <Button
                  type="submit"
                  className="flex-1"
                  disabled={updateMutation.isPending || checkingSave}
                >
                  {checkingSave
                    ? t('printers.addPreflight.checking')
                    : updateMutation.isPending
                      ? t('common.saving')
                      : t('printers.modal.saveChanges')}
                </Button>
              </div>
            )}
          </form>
        </CardContent>
      </Card>
    </div>
  );
}

// Component to check if a printer is offline (for power dropdown)
function usePrinterOfflineStatus(printerId: number) {
  const { data: status } = useQuery({
    queryKey: ['printerStatus', printerId],
    queryFn: () => api.getPrinterStatus(printerId),
    refetchInterval: 30000,
  });
  return !status?.connected;
}

// Power dropdown item for an offline printer
function PowerDropdownItem({
  printer,
  plug,
  onPowerOn,
  isPowering,
}: {
  printer: Printer;
  plug: { id: number; name: string };
  onPowerOn: (plugId: number) => void;
  isPowering: boolean;
}) {
  const isOffline = usePrinterOfflineStatus(printer.id);

  // Fetch plug status
  const { data: plugStatus } = useQuery({
    queryKey: ['smartPlugStatus', plug.id],
    queryFn: () => api.getSmartPlugStatus(plug.id),
    refetchInterval: 10000,
  });

  // Only show if printer is offline
  if (!isOffline) {
    return null;
  }

  return (
    <div className="flex items-center justify-between px-3 py-2 hover:bg-gray-100 dark:hover:bg-bambu-dark-tertiary">
      <div className="flex items-center gap-2 min-w-0">
        <span className="text-sm text-white truncate">{printer.name}</span>
        {plugStatus && (
          <span
            className={`text-xs px-1.5 py-0.5 rounded ${
              plugStatus.state === 'ON'
                ? 'bg-bambu-green/20 text-bambu-green'
                : 'bg-red-100 dark:bg-red-500/20 text-red-700 dark:text-red-400'
            }`}
          >
            {plugStatus.state || '?'}
          </span>
        )}
      </div>
      <button
        onClick={() => onPowerOn(plug.id)}
        disabled={isPowering || plugStatus?.state === 'ON'}
        className={`px-2 py-1 text-xs rounded transition-colors flex items-center gap-1 ${
          plugStatus?.state === 'ON'
            ? 'bg-bambu-green/20 text-bambu-green cursor-default'
            : 'bg-bambu-green/20 text-bambu-green hover:bg-bambu-green hover:text-white'
        }`}
      >
        <Power className="w-3 h-3" />
        {isPowering ? '...' : 'On'}
      </button>
    </div>
  );
}

export function PrintersPage() {
  const { t } = useTranslation();
  const { resolvedMode, darkAccent, lightAccent } = useTheme();
  const activeAccent = resolvedMode === 'dark' ? darkAccent : lightAccent;
  const accentButtonClass = {
    green: 'bg-green-500 text-white hover:bg-green-400 border-green-400/60',
    teal: 'bg-teal-500 text-white hover:bg-teal-400 border-teal-400/60',
    blue: 'bg-blue-500 text-white hover:bg-blue-400 border-blue-400/60',
    orange: 'bg-orange-500 text-white hover:bg-orange-400 border-orange-400/60',
    purple: 'bg-purple-500 text-white hover:bg-purple-400 border-purple-400/60',
    red: 'bg-red-500 text-white hover:bg-red-400 border-red-400/60',
  }[activeAccent];
  const [showAddModal, setShowAddModal] = useState(false);
  const [hideDisconnected, setHideDisconnected] = useState(() => {
    return localStorage.getItem('hideDisconnectedPrinters') === 'true';
  });
  const [showPowerDropdown, setShowPowerDropdown] = useState(false);
  const [poweringOn, setPoweringOn] = useState<number | null>(null);
  const [sortBy, setSortBy] = useState<SortOption>(() => {
    return (localStorage.getItem('printerSortBy') as SortOption) || 'name';
  });
  const [sortAsc, setSortAsc] = useState<boolean>(() => {
    return localStorage.getItem('printerSortAsc') !== 'false';
  });
  // Card size: 1=small, 2=medium, 3=large, 4=xl
  const [cardSize, setCardSize] = useState<number>(() => {
    const saved = localStorage.getItem('printerCardSize');
    return saved ? parseInt(saved, 10) : 2; // Default to medium
  });
  // Page view: 'cards' = printer cards (default), 'camwall' = grid of live camera tiles
  const [pageView, setPageView] = useState<'cards' | 'camwall'>(() => {
    return localStorage.getItem('printerPageView') === 'camwall' ? 'camwall' : 'cards';
  });
  // Cam-wall settings — per-user, no backend write (a Pi 4 install caps the
  // live count lower than a NUC; default 4 is the documented Pi 4 ceiling).
  const [camWallMaxLive, setCamWallMaxLive] = useState<number>(() => {
    const saved = parseInt(localStorage.getItem('camWallMaxLive') || '', 10);
    return Number.isFinite(saved) && saved > 0 ? saved : 4;
  });
  const [camWallSnapshotSec, setCamWallSnapshotSec] = useState<number>(() => {
    const saved = parseInt(localStorage.getItem('camWallSnapshotSec') || '', 10);
    return Number.isFinite(saved) && saved > 0 ? saved : 8;
  });
  // 'off' hides the printer-state overlay; 'compact' shows only a state chip;
  // 'full' adds progress, layer, and time-left on printing/paused tiles.
  // Defaulting to 'full' because the cards already show this info — users who
  // pick cam-wall view still want to glance the same details without flipping.
  const [camWallStatusMode, setCamWallStatusMode] = useState<'off' | 'compact' | 'full'>(() => {
    const saved = localStorage.getItem('camWallStatusMode');
    return saved === 'off' || saved === 'compact' || saved === 'full' ? saved : 'full';
  });
  // Derive viewMode from cardSize: S=compact, M/L/XL=expanded
  const viewMode: ViewMode = cardSize === 1 ? 'compact' : 'expanded';
  const [compactDrilldownPrinterId, setCompactDrilldownPrinterId] = useState<number | null>(null);
  const scrollPrinterIntoView = useCallback((printerId: number) => {
    requestAnimationFrame(() => {
      requestAnimationFrame(() => {
        const card = document.getElementById(`printer-card-${printerId}`);
        if (!card) return;
        const fixedHeaderHeight = document.querySelector('header')?.getBoundingClientRect().height ?? 56;
        const top = card.getBoundingClientRect().top + window.scrollY - fixedHeaderHeight - 16;
        window.scrollTo({
          top: Math.max(0, top),
          behavior: 'smooth',
        });
      });
    });
  }, []);
  const openCompactCard = useCallback((printerId: number) => {
    setCompactDrilldownPrinterId(printerId);
    setCardSize(2);
    localStorage.setItem('printerCardSize', '2');
    scrollPrinterIntoView(printerId);
  }, [scrollPrinterIntoView]);
  const returnToCompactCards = useCallback(() => {
    const printerId = compactDrilldownPrinterId;
    setCompactDrilldownPrinterId(null);
    setCardSize(1);
    localStorage.setItem('printerCardSize', '1');
    if (printerId != null) {
      scrollPrinterIntoView(printerId);
    }
  }, [compactDrilldownPrinterId, scrollPrinterIntoView]);
  const [search, setSearch] = useState('');
  // Both filters persist like every other preference on this page (#2833).
  // `search` deliberately does not: a box that silently refills itself on
  // return is more surprising than a dropdown that remembers.
  const [statusFilter, setStatusFilter] = useState<string>(() => {
    // Validated on read: a value the dropdown no longer offers would filter
    // every printer out, and nothing would explain why.
    const saved = localStorage.getItem('printerStatusFilter');
    return isKnownStatusFilter(saved) ? (saved as string) : 'all';
  });
  const [locationFilter, setLocationFilter] = useState<string>(
    () => localStorage.getItem('printerLocationFilter') || 'all'
  );
  const [statusCacheVersion, setStatusCacheVersion] = useState(0);
  const [collapsedSections, setCollapsedSections] = useState<Record<string, boolean>>(() => {
    try {
      const saved = localStorage.getItem('printerCollapsedSections');
      return saved ? JSON.parse(saved) : {};
    } catch { return {}; }
  });
  const queryClient = useQueryClient();
  const { showToast } = useToast();
  const { hasPermission } = useAuth();
  // Embedded camera viewer state - supports multiple simultaneous viewers
  // Persisted to localStorage so cameras reopen after navigation
  const [embeddedCameraPrinters, setEmbeddedCameraPrinters] = useState<Map<number, { id: number; name: string }>>(() => {
    // Initialize from localStorage if camera_view_mode is embedded
    const saved = localStorage.getItem('openEmbeddedCameras');
    if (saved) {
      try {
        const cameras = JSON.parse(saved) as Array<{ id: number; name: string }>;
        return new Map(cameras.map(c => [c.id, c]));
      } catch {
        return new Map();
      }
    }
    return new Map();
  });

  // Persist open cameras to localStorage when they change
  useEffect(() => {
    const cameras = Array.from(embeddedCameraPrinters.values());
    if (cameras.length > 0) {
      localStorage.setItem('openEmbeddedCameras', JSON.stringify(cameras));
    } else {
      localStorage.removeItem('openEmbeddedCameras');
    }
  }, [embeddedCameraPrinters]);

  const { data: printers, isLoading } = useQuery({
    queryKey: ['printers'],
    queryFn: api.getPrinters,
  });

  // Fetch the UI-rendering subset of settings. Uses /ui-preferences (not /settings)
  // so users with printers:read but no settings:read still get the values needed
  // to render the clear-plate button, drying presets, AMS thresholds, etc. (#1293).
  const { data: settings } = useQuery({
    queryKey: ['ui-preferences'],
    queryFn: api.getUiPreferences,
  });

  // Parse user-configured temperature/fan presets once, with defensive fallback
  // to built-in defaults on parse failure (validators on the backend already
  // reject malformed writes, so this is just forward-compat).
  const effectiveNozzleTempPresets = useMemo(
    () => parsePresetTriple(settings?.nozzle_temp_presets, NOZZLE_TEMP_DEFAULTS, 0, 320),
    [settings?.nozzle_temp_presets],
  );
  const effectiveBedTempPresets = useMemo(
    () => parsePresetTriple(settings?.bed_temp_presets, BED_TEMP_DEFAULTS, 0, 140),
    [settings?.bed_temp_presets],
  );
  const effectiveChamberTempPresets = useMemo(
    () => parsePresetTriple(settings?.chamber_temp_presets, CHAMBER_TEMP_DEFAULTS, 0, MAX_CHAMBER_TEMP_C),
    [settings?.chamber_temp_presets],
  );
  const effectiveFanSpeedPresets = useMemo(
    () => parsePresetTriple(settings?.fan_speed_presets, FAN_SPEED_DEFAULTS, 0, 100),
    [settings?.fan_speed_presets],
  );

  // Compute drying presets: user-configured (from settings) merged over built-in defaults
  const effectiveDryingPresets = useMemo(() => {
    if (settings?.drying_presets) {
      try {
        const userPresets = JSON.parse(settings.drying_presets);
        if (typeof userPresets === 'object' && userPresets !== null && Object.keys(userPresets).length > 0) {
          return { ...DRYING_PRESETS, ...userPresets };
        }
      } catch { /* ignore parse errors, use defaults */ }
    }
    return DRYING_PRESETS;
  }, [settings?.drying_presets]);

  // Close embedded cameras if mode changes to 'window'
  useEffect(() => {
    if (settings?.camera_view_mode === 'window' && embeddedCameraPrinters.size > 0) {
      setEmbeddedCameraPrinters(new Map());
    }
  }, [settings?.camera_view_mode, embeddedCameraPrinters.size]);

  // Fetch all smart plugs to know which printers have them
  const { data: smartPlugs } = useQuery({
    queryKey: ['smart-plugs'],
    queryFn: api.getSmartPlugs,
  });

  // Fetch maintenance overview for all printers to show badges
  const { data: maintenanceOverview } = useQuery({
    queryKey: ['maintenanceOverview'],
    queryFn: api.getMaintenanceOverview,
    staleTime: 60 * 1000, // 1 minute
  });

  // Live AI failure detection state for the card badges (#1546). Matches the
  // 10s refetch of the Failure Detection settings panel.
  const { data: obicoPrinterStatus } = useQuery({
    queryKey: ['obico-printer-status'],
    queryFn: api.getObicoPrinterStatus,
    refetchInterval: 10000,
  });
  // Badge visibility: detection enabled AND this printer in the monitored set
  // (monitored_printers null = all). Live per-print state is passed separately.
  const isAiMonitored = useCallback(
    (printerId: number) =>
      obicoPrinterStatus?.enabled === true &&
      (obicoPrinterStatus.monitored_printers === null || obicoPrinterStatus.monitored_printers.includes(printerId)),
    [obicoPrinterStatus],
  );

  // Fetch Spoolman status to enable link spool feature
  const { data: spoolmanStatus } = useQuery({
    queryKey: ['spoolman-status'],
    queryFn: api.getSpoolmanStatus,
    staleTime: 60 * 1000, // 1 minute
  });
  const spoolmanEnabled = spoolmanStatus?.enabled && spoolmanStatus?.connected;

  // Fetch Spoolman settings to get sync mode
  const { data: spoolmanSettings } = useQuery({
    queryKey: ['spoolman-settings'],
    queryFn: api.getSpoolmanSettings,
    enabled: !!spoolmanEnabled,
    staleTime: 60 * 1000, // 1 minute
  });
  const spoolmanSyncMode = spoolmanSettings?.spoolman_sync_mode;

  // Fetch unlinked spools to know if link button should be enabled
  const { data: unlinkedSpools } = useQuery({
    queryKey: ['unlinked-spools'],
    queryFn: api.getUnlinkedSpools,
    enabled: !!spoolmanEnabled,
    staleTime: 30 * 1000, // 30 seconds
  });
  const hasUnlinkedSpools = unlinkedSpools && unlinkedSpools.length > 0;

  // Fetch linked spools map (tag -> spool_id) to know which spools are already in Spoolman
  const { data: linkedSpoolsData } = useQuery({
    queryKey: ['linked-spools'],
    queryFn: api.getLinkedSpools,
    enabled: !!spoolmanEnabled,
    staleTime: 30 * 1000, // 30 seconds
  });
  const linkedSpools = linkedSpoolsData?.linked;

  // Fetch spool assignments for inventory feature
  const { data: spoolAssignments } = useQuery({
    queryKey: ['spool-assignments'],
    queryFn: () => api.getAssignments(),
    enabled: hasPermission('inventory:view_assignments'),
    staleTime: 30 * 1000,
  });

  const unassignMutation = useMutation({
    mutationFn: ({ printerId, amsId, trayId }: { printerId: number; amsId: number; trayId: number }) =>
      api.unassignSpool(printerId, amsId, trayId),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: ['spool-assignments'] });
    },
  });

  const { data: spoolmanSpools, isLoading: spoolmanSpoolsLoading } = useQuery({
    queryKey: ['spoolman-inventory-spools'],
    queryFn: () => api.getSpoolmanInventorySpools(false),
    enabled: !!spoolmanEnabled,
    staleTime: 30 * 1000,
  });

  const { data: spoolmanSlotAssignments, isLoading: spoolmanAssignmentsLoading } = useQuery({
    queryKey: ['spoolman-slot-assignments'],
    queryFn: () => api.getSpoolmanSlotAssignments(),
    enabled: !!spoolmanEnabled,
    staleTime: 30 * 1000,
  });

  const unassignSpoolmanMutation = useMutation({
    mutationFn: (spoolmanSpoolId: number) => api.unassignSpoolmanSlot(spoolmanSpoolId),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: ['spoolman-inventory-spools'] });
      queryClient.invalidateQueries({ queryKey: ['spoolman-slot-assignments'] });
    },
  });

  // Helper to find assignment for a specific slot
  const getAssignment = (printerId: number, amsId: number | string, trayId: number | string): SpoolAssignment | undefined => {
    return spoolAssignments?.find(
      (a) => a.printer_id === printerId && a.ams_id === Number(amsId) && a.tray_id === Number(trayId)
    );
  };

  // Create a map of printer_id -> maintenance info for quick lookup
  const maintenanceByPrinter = maintenanceOverview?.reduce(
    (acc, overview) => {
      acc[overview.printer_id] = {
        due_count: overview.due_count,
        warning_count: overview.warning_count,
        total_print_hours: overview.total_print_hours,
      };
      return acc;
    },
    {} as Record<number, PrinterMaintenanceInfo>
  ) || {};

  // Create a map of printer_id -> smart plug
  const smartPlugByPrinter = smartPlugs?.reduce(
    (acc, plug) => {
      if (plug.printer_id) {
        acc[plug.printer_id] = plug;
      }
      return acc;
    },
    {} as Record<number, typeof smartPlugs[0]>
  ) || {};

  const addMutation = useMutation({
    mutationFn: api.createPrinter,
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: ['printers'] });
      queryClient.invalidateQueries({ queryKey: ['maintenanceOverview'] });
      setShowAddModal(false);
    },
    onError: (error: Error) => {
      // Localized message when the backend returns a stable error code;
      // the raw message is an English fallback for non-UI clients.
      if (error instanceof ApiError && error.code === 'printer_connection_failed') {
        showToast(t('printers.toast.connectionFailedNotAdded'), 'error');
        return;
      }
      showToast(error.message || t('printers.toast.failedToAdd'), 'error');
    },
  });

  const powerOnMutation = useMutation({
    mutationFn: (plugId: number) => api.controlSmartPlug(plugId, 'on'),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: ['smart-plugs'] });
      setPoweringOn(null);
    },
    onError: () => {
      setPoweringOn(null);
    },
  });

  // Bulk selection state
  const [selectedPrinterIds, setSelectedPrinterIds] = useState<Set<number>>(new Set());
  const [isSelectionMode, setIsSelectionMode] = useState(false);
  const [bulkConfirmAction, setBulkConfirmAction] = useState<'stop' | 'pause' | 'clearPlate' | null>(null);
  const [bulkActionPending, setBulkActionPending] = useState(false);
  const selectionMode = isSelectionMode || selectedPrinterIds.size > 0;

  const toggleSelect = useCallback((id: number) => {
    setSelectedPrinterIds(prev => {
      const next = new Set(prev);
      if (next.has(id)) next.delete(id);
      else next.add(id);
      return next;
    });
  }, []);

  const clearSelection = useCallback(() => {
    setSelectedPrinterIds(new Set());
    setIsSelectionMode(false);
  }, []);

  // Escape key exits selection mode
  useEffect(() => {
    const handleKeyDown = (e: KeyboardEvent) => {
      if (e.key === 'Escape' && selectionMode) {
        clearSelection();
      }
    };
    window.addEventListener('keydown', handleKeyDown);
    return () => window.removeEventListener('keydown', handleKeyDown);
  }, [selectionMode, clearSelection]);

  const executeBulkAction = useCallback(async (action: 'stop' | 'pause' | 'resume' | 'clearPlate' | 'clearHMS') => {
    setBulkActionPending(true);
    const ids = Array.from(selectedPrinterIds);

    // Filter to only applicable printers based on cached state
    const applicableIds = ids.filter(id => {
      const status = queryClient.getQueryData<{ connected: boolean; state: string | null; hms_errors?: HMSError[] }>(['printerStatus', id]);
      if (!status?.connected) return false;
      switch (action) {
        case 'stop': return status.state === 'RUNNING' || status.state === 'PAUSE';
        case 'pause': return status.state === 'RUNNING';
        case 'resume': return status.state === 'PAUSE';
        case 'clearPlate': return !!(status as { awaiting_plate_clear?: boolean }).awaiting_plate_clear;
        case 'clearHMS': return status.hms_errors && filterKnownHMSErrors(status.hms_errors).length > 0;
        default: return false;
      }
    });

    if (applicableIds.length === 0) {
      showToast(t('printers.bulk.noneApplicable'), 'error');
      setBulkActionPending(false);
      setBulkConfirmAction(null);
      return;
    }

    const apiCall = {
      stop: api.stopPrint,
      pause: api.pausePrint,
      resume: api.resumePrint,
      clearPlate: api.clearPlate,
      clearHMS: api.clearHMSErrors,
    }[action];

    const results = await Promise.allSettled(
      applicableIds.map(id => apiCall(id))
    );

    const succeeded = results.filter(r => r.status === 'fulfilled').length;
    const failed = results.filter(r => r.status === 'rejected').length;

    if (failed === 0) {
      showToast(t('printers.bulk.success', { action: t(`printers.bulk.actions.${action}`), count: succeeded }));
    } else {
      showToast(t('printers.bulk.partial', { succeeded, failed }), 'error');
    }

    // Invalidate status queries for affected printers
    applicableIds.forEach(id => {
      queryClient.invalidateQueries({ queryKey: ['printerStatus', id] });
    });

    setBulkActionPending(false);
    setBulkConfirmAction(null);
  }, [selectedPrinterIds, queryClient, showToast, t]);

  const handleBulkAction = useCallback((action: 'stop' | 'pause' | 'resume' | 'clearPlate' | 'clearHMS') => {
    // Actions that need confirmation
    if (action === 'stop' || action === 'pause' || action === 'clearPlate') {
      setBulkConfirmAction(action);
    } else {
      executeBulkAction(action);
    }
  }, [executeBulkAction]);

  const toggleHideDisconnected = () => {
    const newValue = !hideDisconnected;
    setHideDisconnected(newValue);
    localStorage.setItem('hideDisconnectedPrinters', String(newValue));
  };

  const handleSortChange = (newSort: SortOption) => {
    setSortBy(newSort);
    localStorage.setItem('printerSortBy', newSort);
  };

  const handleStatusFilterChange = (value: string) => {
    setStatusFilter(value);
    localStorage.setItem('printerStatusFilter', value);
  };

  const handleLocationFilterChange = (value: string) => {
    setLocationFilter(value);
    localStorage.setItem('printerLocationFilter', value);
  };

  const toggleSortDirection = () => {
    const newAsc = !sortAsc;
    setSortAsc(newAsc);
    localStorage.setItem('printerSortAsc', String(newAsc));
  };

  // Grid classes based on card size (1=small, 2=medium, 3=large, 4=xl)
  const getGridClasses = () => {
    switch (cardSize) {
      case 1: return 'grid-cols-1 sm:grid-cols-2 md:grid-cols-3 lg:grid-cols-4 xl:grid-cols-5'; // S: many small cards
      case 2: return 'grid-cols-1 md:grid-cols-2 xl:grid-cols-3'; // M: medium cards
      case 3: return 'grid-cols-1 lg:grid-cols-2'; // L: large cards, 2 columns max
      case 4: return 'grid-cols-1'; // XL: single column, full width
      default: return 'grid-cols-1 md:grid-cols-2 xl:grid-cols-3';
    }
  };

  const cardSizeLabels = ['S', 'M', 'L', 'XL'];

  // Increment version counter whenever a printer status cache entry is updated so
  // filteredPrinters re-computes reactively on WebSocket-driven status changes.
  useEffect(() => {
    const unsubscribe = queryClient.getQueryCache().subscribe((event) => {
      if (
        event.type === 'updated' &&
        Array.isArray(event.query.queryKey) &&
        event.query.queryKey[0] === 'printerStatus'
      ) {
        setStatusCacheVersion(v => v + 1);
      }
    });
    return unsubscribe;
  }, [queryClient]);

  // Filter printers by search term, status, and location
  const filteredPrinters = useMemo(() => {
    if (!printers) return [];
    let result = printers;

    // Text search
    if (search.trim()) {
      const q = search.trim().toLowerCase();
      result = result.filter(p =>
        p.name.toLowerCase().includes(q) ||
        (p.model || '').toLowerCase().includes(q) ||
        (p.location || '').toLowerCase().includes(q) ||
        (p.serial_number || '').toLowerCase().includes(q)
      );
    }

    // Location filter
    if (locationFilter !== 'all') {
      result = result.filter(p => (p.location || '') === locationFilter);
    }

    // Status filter
    if (statusFilter !== 'all') {
      result = result.filter(p => {
        const status = queryClient.getQueryData<{ connected: boolean; state: string | null; hms_errors?: HMSError[] }>(['printerStatus', p.id]);
        if (!status?.connected) return statusFilter === 'offline';
        const hmsErrors = status.hms_errors ? filterKnownHMSErrors(status.hms_errors) : [];
        switch (statusFilter) {
          case 'printing': return status.state === 'RUNNING';
          case 'paused':   return status.state === 'PAUSE';
          case 'finished': return status.state === 'FINISH';
          case 'error':    return status.state === 'FAILED' || hmsErrors.length > 0;
          case 'idle':     return status.state !== 'RUNNING' && status.state !== 'PAUSE' && status.state !== 'FINISH' && status.state !== 'FAILED' && hmsErrors.length === 0;
          case 'offline':  return false; // Connected printers are never offline
          default:         return true;
        }
      });
    }

    return result;
  // eslint-disable-next-line react-hooks/exhaustive-deps -- statusCacheVersion is intentional: it forces recompute when WebSocket updates printer status cache
  }, [printers, search, statusFilter, locationFilter, queryClient, statusCacheVersion]);

  // Derive unique locations for the location filter dropdown
  const availableLocations = useMemo(() => {
    if (!printers) return [];
    return [...new Set(printers.map(p => p.location || '').filter(Boolean))].sort();
  }, [printers]);

  // A saved location can outlive what it matched -- renamed, cleared, or the
  // only printer that had it deleted. The dropdown is rendered only while some
  // printer has a location, so a stale one would hide every printer *and* the
  // control to undo it, leaving an empty page and no way back (#2833).
  // Deliberately waits for `printers`: it is undefined while the query is in
  // flight, and acting on the empty list that produces would throw the saved
  // filter away every time the page loads.
  useEffect(() => {
    if (!printers || locationFilter === 'all' || availableLocations.includes(locationFilter)) return;
    setLocationFilter('all');
    localStorage.setItem('printerLocationFilter', 'all');
  }, [printers, availableLocations, locationFilter]);

  // Sort printers based on selected option
  const sortedPrinters = useMemo(() => {
    const sorted = [...filteredPrinters];

    switch (sortBy) {
      case 'name':
        sorted.sort((a, b) => a.name.localeCompare(b.name));
        break;
      case 'model':
        sorted.sort((a, b) => (a.model || '').localeCompare(b.model || ''));
        break;
      case 'location':
        // Sort by location, with ungrouped printers last
        sorted.sort((a, b) => {
          const locA = a.location || '';
          const locB = b.location || '';
          if (!locA && locB) return 1;
          if (locA && !locB) return -1;
          return locA.localeCompare(locB) || a.name.localeCompare(b.name);
        });
        break;
      case 'status':
        // Sort by status: HMS errors > printing > idle > offline
        sorted.sort((a, b) => {
          const statusA = queryClient.getQueryData<{ connected: boolean; state: string | null; hms_errors?: HMSError[] }>(['printerStatus', a.id]);
          const statusB = queryClient.getQueryData<{ connected: boolean; state: string | null; hms_errors?: HMSError[] }>(['printerStatus', b.id]);

          const getPriority = (s: typeof statusA) => {
            if (!s?.connected) return 3; // offline
            const hmsErrors = s.hms_errors ? filterKnownHMSErrors(s.hms_errors) : [];
            if (hmsErrors.length > 0) return 0; // HMS errors - top priority
            if (s.state === 'RUNNING') return 1; // printing
            return 2; // idle
          };

          return getPriority(statusA) - getPriority(statusB);
        });
        break;
      case 'eta':
        sorted.sort((a, b) => {
          const statusA = queryClient.getQueryData<{ connected: boolean; state: string | null; remaining_time: number | null }>(['printerStatus', a.id]);
          const statusB = queryClient.getQueryData<{ connected: boolean; state: string | null; remaining_time: number | null }>(['printerStatus', b.id]);

          const tier = (s: typeof statusA) => {
            if (!s?.connected) return 3; // offline last
            if (s.state === 'RUNNING' && s.remaining_time != null && s.remaining_time > 0) return 0; // printing with ETA
            if (s.state === 'RUNNING') return 1; // printing without ETA
            return 2; // idle
          };

          const ta = tier(statusA);
          const tb = tier(statusB);
          if (ta !== tb) return ta - tb;
          if (ta === 0) {
            const diff = (statusA!.remaining_time ?? 0) - (statusB!.remaining_time ?? 0);
            if (diff !== 0) return diff;
          }
          return a.name.localeCompare(b.name);
        });
        break;
    }

    // Apply ascending/descending
    if (!sortAsc) {
      sorted.reverse();
    }

    return sorted;
  }, [filteredPrinters, sortBy, sortAsc, queryClient]);

  const selectAll = useCallback(() => {
    setSelectedPrinterIds(new Set(sortedPrinters.map(p => p.id)));
    setIsSelectionMode(true);
  }, [sortedPrinters]);

  const selectByState = useCallback((state: PrinterState) => {
    setSelectedPrinterIds(prev => {
      const next = new Set(prev);
      sortedPrinters.forEach(p => {
        const status = queryClient.getQueryData<{ connected: boolean; state: string | null; hms_errors?: HMSError[] }>(['printerStatus', p.id]);
        if (classifyPrinterStatus(status) === state) next.add(p.id);
      });
      return next;
    });
    setIsSelectionMode(true);
  }, [sortedPrinters, queryClient]);

  const selectByLocation = useCallback((location: string) => {
    setSelectedPrinterIds(prev => {
      const next = new Set(prev);
      sortedPrinters.filter(p => (p.location || '') === location).forEach(p => next.add(p.id));
      return next;
    });
    setIsSelectionMode(true);
  }, [sortedPrinters]);

  const selectByModel = useCallback((model: string) => {
    setSelectedPrinterIds(prev => {
      const next = new Set(prev);
      sortedPrinters.filter(p => (p.model || 'Unknown') === model).forEach(p => next.add(p.id));
      return next;
    });
    setIsSelectionMode(true);
  }, [sortedPrinters]);

  const toggleSectionCollapse = useCallback((key: string) => {
    setCollapsedSections(prev => {
      const next = { ...prev, [key]: !prev[key] };
      try { localStorage.setItem('printerCollapsedSections', JSON.stringify(next)); } catch { /* quota exceeded / private mode */ }
      return next;
    });
  }, []);

  // Group printers when sorted by location, status, or model
  const groupedPrinters = useMemo(() => {
    if (sortBy === 'name' || sortBy === 'eta') return null;

    const groups: Record<string, typeof sortedPrinters> = {};

    if (sortBy === 'location') {
      sortedPrinters.forEach(printer => {
        const location = printer.location || 'Ungrouped';
        if (!groups[location]) groups[location] = [];
        groups[location].push(printer);
      });
    } else if (sortBy === 'model') {
      sortedPrinters.forEach(printer => {
        const model = printer.model || 'Unknown';
        if (!groups[model]) groups[model] = [];
        groups[model].push(printer);
      });
    } else if (sortBy === 'status') {
      sortedPrinters.forEach(printer => {
        const status = queryClient.getQueryData<{ connected: boolean; state: string | null; hms_errors?: HMSError[] }>(['printerStatus', printer.id]);
        const group = classifyPrinterStatus(status);
        if (!groups[group]) groups[group] = [];
        groups[group].push(printer);
      });
    }

    return groups;
    // eslint-disable-next-line react-hooks/exhaustive-deps -- classifyPrinterStatus & filterKnownHMSErrors are stable module-level functions, not reactive deps; statusCacheVersion forces recompute on WebSocket status updates
  }, [sortBy, sortedPrinters, queryClient, statusCacheVersion]);

  const toolbarRef = useRef<HTMLDivElement>(null);
  const expandedToolbarControlsRef = useRef<HTMLDivElement>(null);
  const expandedToolbarWidthRef = useRef(0);
  const [compactToolbar, setCompactToolbar] = useState(false);

  const measureToolbar = useCallback(() => {
    const toolbar = toolbarRef.current;
    if (!toolbar) return;

    const measuredControlsWidth = expandedToolbarControlsRef.current?.offsetWidth;
    if (measuredControlsWidth) {
      expandedToolbarWidthRef.current = measuredControlsWidth;
    }

    const searchMinimumWidth = 220;
    const gapWidth = 8;
    const shouldCompact = expandedToolbarWidthRef.current > 0 && toolbar.clientWidth < expandedToolbarWidthRef.current + searchMinimumWidth + gapWidth;
    setCompactToolbar(prev => (prev === shouldCompact ? prev : shouldCompact));
  }, []);

  const smartPlugCount = Object.keys(smartPlugByPrinter).length;
  useLayoutEffect(() => {
    measureToolbar();

    const toolbar = toolbarRef.current;
    if (!toolbar) return;

    if (typeof ResizeObserver === 'undefined') {
      window.addEventListener('resize', measureToolbar);
      return () => window.removeEventListener('resize', measureToolbar);
    }

    const resizeObserver = new ResizeObserver(() => measureToolbar());
    resizeObserver.observe(toolbar);
    window.addEventListener('resize', measureToolbar);

    return () => {
      resizeObserver.disconnect();
      window.removeEventListener('resize', measureToolbar);
    };
  }, [
    measureToolbar,
    printers?.length,
    availableLocations.length,
    hideDisconnected,
    smartPlugCount,
  ]);

  const renderFilterControls = (inMenu = false) => (
    <>
      {/* Status filter */}
      {printers && printers.length > 0 && (
        <ToolbarDropdown
          value={statusFilter}
          onChange={handleStatusFilterChange}
          fullWidth={inMenu}
          options={STATUS_FILTER_OPTIONS.map(option => ({ value: option.value, label: t(option.labelKey) }))}
        />
      )}

      {/* Location filter — only shown when at least one printer has a location */}
      {printers && printers.length > 0 && availableLocations.length > 0 && (
        <ToolbarDropdown
          value={locationFilter}
          onChange={handleLocationFilterChange}
          fullWidth={inMenu}
          options={[
            { value: 'all', label: t('printers.filter.allLocations') },
            ...availableLocations.map(loc => ({ value: loc, label: loc })),
          ]}
        />
      )}

      <button
        type="button"
        onClick={toggleHideDisconnected}
        aria-pressed={hideDisconnected}
        className={`h-8 px-2 rounded-lg border text-sm font-medium transition-colors ${inMenu ? 'w-full' : ''} ${
          hideDisconnected
            ? 'bg-bambu-green border-bambu-green text-white'
            : 'bg-bambu-dark border-bambu-dark-tertiary text-white hover:bg-bambu-dark-tertiary'
        }`}
      >
        {t('printers.hideOffline')}
      </button>
    </>
  );

  const renderViewControls = (inMenu = false) => (
    <>
      {/* Sort dropdown */}
      <div className={`flex items-center gap-1 ${inMenu ? 'w-full' : ''}`}>
        <ToolbarDropdown<SortOption>
          value={sortBy}
          onChange={handleSortChange}
          fullWidth={inMenu}
          options={[
            { value: 'name', label: t('printers.sort.name') },
            { value: 'status', label: t('printers.sort.status') },
            { value: 'model', label: t('printers.sort.model') },
            { value: 'location', label: t('printers.sort.location') },
            { value: 'eta', label: t('printers.sort.eta') },
          ]}
        />
        <button
          onClick={toggleSortDirection}
          className="h-8 shrink-0 px-2 rounded-lg border bg-bambu-dark border-bambu-dark-tertiary text-white hover:bg-bambu-dark-tertiary transition-colors flex items-center justify-center"
          title={sortAsc ? t('printers.sort.descending') : t('printers.sort.ascending')}
        >
          {sortAsc ? (
            <ArrowUp className="w-4 h-4 text-white" />
          ) : (
            <ArrowDown className="w-4 h-4 text-white" />
          )}
        </button>
      </div>

      {/* Page view toggle: Cards / Cam Wall */}
      <div className={`flex h-8 items-center bg-bambu-dark rounded-lg border border-bambu-dark-tertiary ${inMenu ? 'w-full' : ''}`}>
        <button
          type="button"
          onClick={() => {
            setPageView('cards');
            localStorage.setItem('printerPageView', 'cards');
          }}
          className={`flex h-full items-center gap-1 rounded-l-lg px-2 text-xs font-medium transition-colors ${inMenu ? 'flex-1 justify-center' : ''} ${
            pageView === 'cards' ? 'bg-bambu-green text-white' : 'text-white hover:bg-bambu-dark-tertiary'
          }`}
          title={t('printers.pageView.cards')}
          aria-pressed={pageView === 'cards'}
        >
          <LayoutGrid className="w-3.5 h-3.5" />
          {inMenu && <span>{t('printers.pageView.cards')}</span>}
        </button>
        <button
          type="button"
          onClick={() => {
            setPageView('camwall');
            localStorage.setItem('printerPageView', 'camwall');
          }}
          className={`flex h-full items-center gap-1 rounded-r-lg px-2 text-xs font-medium transition-colors ${inMenu ? 'flex-1 justify-center' : ''} ${
            pageView === 'camwall' ? 'bg-bambu-green text-white' : 'text-white hover:bg-bambu-dark-tertiary'
          }`}
          title={t('printers.pageView.camWall')}
          aria-pressed={pageView === 'camwall'}
          disabled={!hasPermission('camera:view')}
        >
          <MonitorPlay className="w-3.5 h-3.5" />
          {inMenu && <span>{t('printers.pageView.camWall')}</span>}
        </button>
      </div>

      {/* Cam Wall on its own URL (#2531) — the linkable/bookmarkable form of the
          view, and the page a kiosk token points at. Only offered once the wall
          is the active view, so it doesn't compete with the toggle above. */}
      {pageView === 'camwall' && hasPermission('camera:view') && (
        <RouterLink
          to="/camwall"
          className={`flex h-8 items-center gap-1 rounded-lg border border-bambu-dark-tertiary bg-bambu-dark px-2 text-xs font-medium text-white transition-colors hover:bg-bambu-dark-tertiary ${inMenu ? 'w-full justify-center' : ''}`}
          title={t('printers.pageView.openCamWallPage')}
        >
          <ExternalLink className="w-3.5 h-3.5" />
          {inMenu && <span>{t('printers.pageView.openCamWallPage')}</span>}
        </RouterLink>
      )}

      {/* Card size selector */}
      <div className={`flex h-8 items-center bg-bambu-dark rounded-lg border border-bambu-dark-tertiary ${pageView === 'camwall' ? 'opacity-40 pointer-events-none' : ''} ${inMenu ? 'w-full' : ''}`}>
        {cardSizeLabels.map((label, index) => {
          const size = index + 1;
          const isSelected = cardSize === size;
          return (
            <button
              key={label}
              onClick={() => {
                setCompactDrilldownPrinterId(null);
                setCardSize(size);
                localStorage.setItem('printerCardSize', String(size));
              }}
              className={`h-full px-2 text-xs font-medium transition-colors ${inMenu ? 'flex-1' : ''} ${
                index === 0 ? 'rounded-l-lg' : ''
              } ${
                index === cardSizeLabels.length - 1 ? 'rounded-r-lg' : ''
              } ${
                isSelected
                  ? 'bg-bambu-green text-white'
                  : 'text-white hover:bg-bambu-dark-tertiary'
              }`}
              title={label === 'S' ? t('printers.cardSize.small') : label === 'M' ? t('printers.cardSize.medium') : label === 'L' ? t('printers.cardSize.large') : t('printers.cardSize.extraLarge')}
            >
              {label}
            </button>
          );
        })}
      </div>
    </>
  );

  const renderActionControls = (inMenu = false) => (
    <>
      {/* Bulk select toggle */}
      <button
        onClick={() => {
          if (selectionMode) clearSelection();
          else setIsSelectionMode(true);
        }}
        className={`h-8 px-2 rounded-lg border transition-colors ${inMenu ? 'w-full justify-center gap-1.5 text-sm font-medium flex items-center' : ''} ${
          selectionMode
            ? 'bg-bambu-green border-bambu-green text-white'
            : 'bg-bambu-dark border-bambu-dark-tertiary text-white hover:bg-bambu-dark-tertiary'
        }`}
        title={t('printers.bulk.select')}
        disabled={!hasPermission('printers:control')}
      >
        <CheckSquare className="w-4 h-4" />
        {inMenu && <span>{t('printers.bulk.select')}</span>}
      </button>

      {/* Power dropdown for offline printers with smart plugs */}
      {hideDisconnected && Object.keys(smartPlugByPrinter).length > 0 && (
        <div className={`relative ${inMenu ? 'w-full' : ''}`}>
          <button
            onClick={() => setShowPowerDropdown(!showPowerDropdown)}
            className={`h-8 flex items-center gap-1.5 px-2 text-sm rounded-lg border transition-colors ${
              inMenu
                ? 'w-full justify-between bg-bambu-dark border-bambu-dark-tertiary text-white hover:bg-bambu-dark-tertiary hover:text-white'
                : 'bg-bambu-dark border-bambu-dark-tertiary text-white hover:bg-bambu-dark-tertiary'
            }`}
          >
            <span className="flex items-center gap-1.5">
              <Power className="w-4 h-4" />
              {t('printers.powerOn')}
            </span>
            <ChevronDown className={`w-3 h-3 transition-transform ${showPowerDropdown ? 'rotate-180' : ''}`} />
          </button>
          {showPowerDropdown && (
            <>
              {/* Backdrop to close dropdown */}
              <div
                className="fixed inset-0 z-10"
                onClick={() => setShowPowerDropdown(false)}
              />
              <div className="absolute right-0 mt-2 w-56 bg-white dark:bg-bambu-dark-secondary border border-gray-200 dark:border-bambu-dark-tertiary rounded-lg shadow-lg z-20 py-1">
                <div className="px-3 py-2 text-xs text-gray-500 dark:text-bambu-gray border-b border-gray-200 dark:border-bambu-dark-tertiary">
                  {t('printers.offlinePrintersWithPlugs')}
                </div>
                {printers?.filter(p => smartPlugByPrinter[p.id]).map(printer => (
                  <PowerDropdownItem
                    key={printer.id}
                    printer={printer}
                    plug={smartPlugByPrinter[printer.id]}
                    onPowerOn={(plugId) => {
                      setPoweringOn(plugId);
                      powerOnMutation.mutate(plugId);
                    }}
                    isPowering={poweringOn === smartPlugByPrinter[printer.id]?.id}
                  />
                ))}
                {printers?.filter(p => smartPlugByPrinter[p.id]).length === 0 && (
                  <div className="px-3 py-2 text-sm text-bambu-gray">
                    No printers with smart plugs
                  </div>
                )}
              </div>
            </>
          )}
        </div>
      )}
      <Button
        onClick={() => setShowAddModal(true)}
        disabled={!hasPermission('printers:create')}
        title={!hasPermission('printers:create') ? t('printers.permission.noAdd') : undefined}
        className={`!h-8 !min-h-8 px-2 py-0 ${inMenu ? 'w-full' : ''}`}
      >
        <Plus className="w-4 h-4" />
        {t('printers.addPrinter')}
      </Button>
    </>
  );

  return (
    <div className="p-4 md:p-8">
      <div className="space-y-3 mb-6">
        <div>
          <h1 className="text-2xl font-bold text-white flex items-center gap-3">
            <PrinterIcon className="w-7 h-7 text-bambu-green" />
            {t('printers.title')}
          </h1>
          <StatusSummaryBar printers={printers} />
        </div>
        <div ref={toolbarRef} className="relative flex items-center gap-2">
          {/* Only show search bar when printers exist */}
          {printers && printers.length > 0 && (
            <div className="relative min-w-0 flex-1">
              <Search className="absolute left-3 top-1/2 -translate-y-1/2 w-4 h-4 text-bambu-gray/50" />
              <input
                type="search"
                name="printer-search"
                autoComplete="off"
                data-1p-ignore
                data-lpignore="true"
                value={search}
                onChange={(e) => setSearch(e.target.value)}
                placeholder={t('printers.search')}
                aria-label={t('printers.search')}
                className="w-full h-8 pl-9 pr-8 bg-bambu-dark border border-bambu-dark-tertiary rounded-lg text-white text-sm placeholder:text-bambu-gray/50 focus:outline-none focus:border-bambu-green"
              />
              {search && (
                <button
                  type="button"
                  aria-label={t('common.clear')}
                  onClick={() => setSearch('')}
                  className="absolute right-3 top-1/2 -translate-y-1/2 text-bambu-gray hover:text-white"
                >
                  <X className="w-4 h-4" />
                </button>
              )}
            </div>
          )}
          <div
            ref={expandedToolbarControlsRef}
            aria-hidden={compactToolbar}
            inert={compactToolbar}
            className={`${compactToolbar ? 'absolute -left-[9999px] top-0 flex w-max pointer-events-none opacity-0' : 'flex'} ml-auto items-center justify-end gap-2 flex-nowrap [&>*]:shrink-0`}
          >
            <div className="h-6 w-px bg-bambu-dark-tertiary" />
            <div className="flex items-center gap-2">{renderFilterControls()}</div>
            <div className="h-6 w-px bg-bambu-dark-tertiary" />
            <div className="flex items-center gap-2">{renderViewControls()}</div>
            <div className="h-6 w-px bg-bambu-dark-tertiary" />
            <div className="flex items-center gap-2">{renderActionControls()}</div>
          </div>

          {compactToolbar && (
            <div className="ml-auto flex items-center justify-end gap-1">
              <ToolbarMenu label={t('printers.toolbar.filters', 'Filters')} icon={<Filter className="w-4 h-4" />}>
                <div className="flex w-48 flex-col gap-2">{renderFilterControls(true)}</div>
              </ToolbarMenu>
              <ToolbarMenu label={t('printers.toolbar.view', 'View')} icon={<SlidersHorizontal className="w-4 h-4" />}>
                <div className="flex w-48 flex-col gap-2">{renderViewControls(true)}</div>
              </ToolbarMenu>
              <ToolbarMenu label={t('printers.toolbar.actions', 'Actions')} icon={<MoreHorizontal className="w-4 h-4" />}>
                <div className="flex w-48 flex-col gap-2">{renderActionControls(true)}</div>
              </ToolbarMenu>
            </div>
          )}
        </div>
      </div>

      {isLoading ? (
        <div className="text-center py-12 text-bambu-gray">{t('common.loading')}</div>
      ) : printers?.length === 0 ? (
        <Card>
          <CardContent className="text-center py-12">
            <p className="text-bambu-gray mb-4">{t('printers.noPrintersConfigured')}</p>
            <Button
              onClick={() => setShowAddModal(true)}
              disabled={!hasPermission('printers:create')}
              title={!hasPermission('printers:create') ? t('printers.permission.noAdd') : undefined}
            >
              <Plus className="w-4 h-4" />
              {t('printers.addPrinter')}
            </Button>
          </CardContent>
        </Card>
      ) : sortedPrinters.length === 0 && (search.trim() || statusFilter !== 'all' || locationFilter !== 'all') ? (
        <Card>
          <CardContent className="text-center py-12">
            <p className="text-bambu-gray">{t('printers.noSearchResults')}</p>
          </CardContent>
        </Card>
      ) : pageView === 'camwall' ? (
        <CameraWall
          printers={sortedPrinters}
          maxLive={camWallMaxLive}
          snapshotIntervalSec={camWallSnapshotSec}
          onTileClick={(id, name) => {
            const cameraMode = settings?.camera_view_mode || 'window';
            if (cameraMode === 'embedded') {
              setEmbeddedCameraPrinters(prev => new Map(prev).set(id, { id, name }));
            } else {
              const saved = localStorage.getItem('cameraWindowState');
              const state = saved ? JSON.parse(saved) : { width: 640, height: 400 };
              const features = [
                `width=${state.width}`,
                `height=${state.height}`,
                state.left !== undefined ? `left=${state.left}` : '',
                state.top !== undefined ? `top=${state.top}` : '',
                'menubar=no,toolbar=no,location=no,status=no',
              ].filter(Boolean).join(',');
              window.open(`/camera/${id}`, `camera-${id}`, features);
            }
          }}
          statusMode={camWallStatusMode}
          onChangeMaxLive={(next) => {
            setCamWallMaxLive(next);
            localStorage.setItem('camWallMaxLive', String(next));
          }}
          onChangeSnapshotIntervalSec={(next) => {
            setCamWallSnapshotSec(next);
            localStorage.setItem('camWallSnapshotSec', String(next));
          }}
          onChangeStatusMode={(next) => {
            setCamWallStatusMode(next);
            localStorage.setItem('camWallStatusMode', next);
          }}
        />
      ) : groupedPrinters ? (
        /* Grouped view (location, status, or model) */
        <div className="space-y-6">
          {(() => {
            const keys = sortBy === 'status'
              ? STATUS_GROUP_ORDER.filter(k => groupedPrinters[k]?.length > 0)
              : Object.keys(groupedPrinters);
            // For status grouping, asc/desc flips the fixed priority order
            // (asc = error→offline, desc = offline→error). This matches the
            // sort-toggle behaviour for other groupings.
            return (sortAsc ? keys : [...keys].reverse());
          })().map((groupKey) => {
            const groupPrinters = groupedPrinters[groupKey];
            const collapseKey = `${sortBy}:${groupKey}`;
            const isOpen = !collapsedSections[collapseKey];

            const dot = sortBy === 'status'
              ? STATUS_GROUP_META[groupKey]?.dot || 'bg-bambu-green'
              : 'bg-bambu-green';
            const label = sortBy === 'status'
              ? t(STATUS_GROUP_META[groupKey]?.labelKey || groupKey)
              : groupKey;

            return (
              <Collapsible
                key={groupKey}
                open={isOpen}
                onToggle={() => toggleSectionCollapse(collapseKey)}
                summaryClassName="py-1"
                summary={
                  <h2 className="text-lg font-semibold text-white flex items-center gap-2">
                    <span className={`w-2 h-2 rounded-full ${dot}`} />
                    {label}
                    <span className="text-sm font-normal text-bambu-gray">({groupPrinters.length})</span>
                    {selectionMode && (
                      <button
                        onClick={(e) => {
                          e.stopPropagation();
                          if (sortBy === 'location') selectByLocation(groupKey === 'Ungrouped' ? '' : groupKey);
                          else if (sortBy === 'status') selectByState(groupKey as PrinterState);
                          else if (sortBy === 'model') selectByModel(groupKey);
                        }}
                        className="text-xs text-bambu-green hover:text-bambu-green-light transition-colors ml-1"
                      >
                        {t('printers.bulk.selectAll')}
                      </button>
                    )}
                  </h2>
                }
              >
                <div className={`grid gap-4 ${cardSize >= 3 ? 'gap-6' : ''} ${getGridClasses()}`}>
                  {groupPrinters.map((printer) => (
                    <PrinterCard
                      key={printer.id}
                      printer={printer}
                      hideIfDisconnected={hideDisconnected}
                      maintenanceInfo={maintenanceByPrinter[printer.id]}
                      viewMode={viewMode}
                      cardSize={cardSize}
                      amsThresholds={settings ? {
                        humidityGood: Number(settings.ams_humidity_good) || 40,
                        humidityFair: Number(settings.ams_humidity_fair) || 60,
                        tempGood: Number(settings.ams_temp_good) || 28,
                        tempFair: Number(settings.ams_temp_fair) || 35,
                      } : undefined}
                      spoolmanEnabled={spoolmanEnabled}
                      hasUnlinkedSpools={hasUnlinkedSpools}
                      linkedSpools={linkedSpools}
                      spoolmanUrl={spoolmanStatus?.url}
                      spoolmanSyncMode={spoolmanSyncMode}
                      onGetAssignment={getAssignment}
                      onUnassignSpool={(pid, aid, tid) => unassignMutation.mutate({ printerId: pid, amsId: aid, trayId: tid })}
                      spoolmanSpools={spoolmanSpools}
                      spoolmanSlotAssignments={spoolmanSlotAssignments}
                      spoolmanLoading={spoolmanSpoolsLoading || spoolmanAssignmentsLoading}
                      onUnassignSpoolmanSpool={(id) => unassignSpoolmanMutation.mutate(id)}
                      timeFormat={settings?.time_format || 'system'}
                      cameraViewMode={settings?.camera_view_mode || 'window'}
                      onOpenEmbeddedCamera={(id, name) => setEmbeddedCameraPrinters(prev => new Map(prev).set(id, { id, name }))}
                      checkPrinterFirmware={settings?.check_printer_firmware !== false}
                      dryingPresets={effectiveDryingPresets}
                      nozzleTempPresets={effectiveNozzleTempPresets}
                      bedTempPresets={effectiveBedTempPresets}
                      chamberTempPresets={effectiveChamberTempPresets}
                      fanSpeedPresets={effectiveFanSpeedPresets}
                      requirePlateClear={settings?.require_plate_clear === true}
                      selectionMode={selectionMode}
                      isSelected={selectedPrinterIds.has(printer.id)}
                      onToggleSelect={toggleSelect}
                      onOpenCompactCard={openCompactCard}
                      aiDetectionEnabled={isAiMonitored(printer.id)}
                      aiDetection={obicoPrinterStatus?.enabled ? obicoPrinterStatus.per_printer[String(printer.id)] : undefined}
                      aiLastError={obicoPrinterStatus?.last_error ?? null}
                    />
                  ))}
                </div>
              </Collapsible>
            );
          })}
        </div>
      ) : (
        /* Regular grid view */
        <div className={`grid gap-4 ${cardSize >= 3 ? 'gap-6' : ''} ${getGridClasses()}`}>
          {sortedPrinters.map((printer) => (
            <PrinterCard
              key={printer.id}
              printer={printer}
              hideIfDisconnected={hideDisconnected}
              maintenanceInfo={maintenanceByPrinter[printer.id]}
              viewMode={viewMode}
              cardSize={cardSize}
              spoolmanEnabled={spoolmanEnabled}
              hasUnlinkedSpools={hasUnlinkedSpools}
              linkedSpools={linkedSpools}
              spoolmanUrl={spoolmanStatus?.url}
              spoolmanSyncMode={spoolmanSyncMode}
              onGetAssignment={getAssignment}
              onUnassignSpool={(pid, aid, tid) => unassignMutation.mutate({ printerId: pid, amsId: aid, trayId: tid })}
              spoolmanSpools={spoolmanSpools}
              spoolmanSlotAssignments={spoolmanSlotAssignments}
              spoolmanLoading={spoolmanSpoolsLoading || spoolmanAssignmentsLoading}
              onUnassignSpoolmanSpool={(id) => unassignSpoolmanMutation.mutate(id)}
              amsThresholds={settings ? {
                humidityGood: Number(settings.ams_humidity_good) || 40,
                humidityFair: Number(settings.ams_humidity_fair) || 60,
                tempGood: Number(settings.ams_temp_good) || 28,
                tempFair: Number(settings.ams_temp_fair) || 35,
              } : undefined}
              timeFormat={settings?.time_format || 'system'}
              cameraViewMode={settings?.camera_view_mode || 'window'}
              onOpenEmbeddedCamera={(id, name) => setEmbeddedCameraPrinters(prev => new Map(prev).set(id, { id, name }))}
              checkPrinterFirmware={settings?.check_printer_firmware !== false}
              dryingPresets={effectiveDryingPresets}
              nozzleTempPresets={effectiveNozzleTempPresets}
              bedTempPresets={effectiveBedTempPresets}
              chamberTempPresets={effectiveChamberTempPresets}
              fanSpeedPresets={effectiveFanSpeedPresets}
              requirePlateClear={settings?.require_plate_clear === true}
              selectionMode={selectionMode}
              isSelected={selectedPrinterIds.has(printer.id)}
              onToggleSelect={toggleSelect}
              onOpenCompactCard={openCompactCard}
              aiDetectionEnabled={isAiMonitored(printer.id)}
              aiDetection={obicoPrinterStatus?.enabled ? obicoPrinterStatus.per_printer[String(printer.id)] : undefined}
              aiLastError={obicoPrinterStatus?.last_error ?? null}
            />
          ))}
        </div>
      )}

      {cardSize === 2 && compactDrilldownPrinterId != null && (
        <button
          type="button"
          onClick={returnToCompactCards}
          className={`fixed bottom-5 left-1/2 z-40 inline-flex -translate-x-1/2 items-center gap-2 rounded-full border px-4 py-2 text-sm font-medium shadow-xl transition-colors ${accentButtonClass}`}
          title={t('common.back', 'Back')}
        >
          <ArrowLeft className="w-4 h-4" />
          {t('common.back', 'Back')}
        </button>
      )}

      {showAddModal && (
        <AddPrinterModal
          onClose={() => setShowAddModal(false)}
          onAdd={(data) => addMutation.mutate(data)}
          existingSerials={printers?.map(p => p.serial_number) || []}
        />
      )}

      {/* Bulk selection toolbar */}
      {selectionMode && printers && (
        <BulkPrinterToolbar
          selectedIds={selectedPrinterIds}
          printers={printers}
          onClose={clearSelection}
          onSelectAll={selectAll}
          onSelectByLocation={selectByLocation}
          onSelectByState={selectByState}
          onAction={handleBulkAction}
          actionPending={bulkActionPending}
        />
      )}

      {/* Bulk action confirmation modals */}
      {bulkConfirmAction === 'stop' && (
        <ConfirmModal
          title={t('printers.bulk.confirm.stopTitle', { count: selectedPrinterIds.size })}
          message={t('printers.bulk.confirm.stopMessage', { count: selectedPrinterIds.size })}
          confirmText={t('printers.bulk.confirm.stopButton')}
          variant="danger"
          isLoading={bulkActionPending}
          onConfirm={() => executeBulkAction('stop')}
          onCancel={() => setBulkConfirmAction(null)}
        />
      )}
      {bulkConfirmAction === 'pause' && (
        <ConfirmModal
          title={t('printers.bulk.confirm.pauseTitle', { count: selectedPrinterIds.size })}
          message={t('printers.bulk.confirm.pauseMessage', { count: selectedPrinterIds.size })}
          confirmText={t('printers.bulk.confirm.pauseButton')}
          isLoading={bulkActionPending}
          onConfirm={() => executeBulkAction('pause')}
          onCancel={() => setBulkConfirmAction(null)}
        />
      )}
      {bulkConfirmAction === 'clearPlate' && (
        <ConfirmModal
          title={t('printers.bulk.confirm.clearPlateTitle', { count: selectedPrinterIds.size })}
          message={t('printers.bulk.confirm.clearPlateMessage', { count: selectedPrinterIds.size })}
          confirmText={t('printers.bulk.confirm.clearPlateButton')}
          isLoading={bulkActionPending}
          onConfirm={() => executeBulkAction('clearPlate')}
          onCancel={() => setBulkConfirmAction(null)}
        />
      )}

      {/* Embedded Camera Viewers - multiple viewers can be open simultaneously */}
      {Array.from(embeddedCameraPrinters.values()).map((camera, index) => (
        <EmbeddedCameraViewer
          key={camera.id}
          printerId={camera.id}
          printerName={camera.name}
          viewerIndex={index}
          onClose={() => setEmbeddedCameraPrinters(prev => {
            const next = new Map(prev);
            next.delete(camera.id);
            return next;
          })}
        />
      ))}
    </div>
  );
}