from datetime import datetime

from pydantic import BaseModel, Field


class PrinterBase(BaseModel):
    name: str = Field(..., min_length=1, max_length=100)
    serial_number: str = Field(..., min_length=1, max_length=50)
    ip_address: str = Field(..., pattern=r"^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$")
    access_code: str = Field(..., min_length=1, max_length=20)
    model: str | None = None
    location: str | None = None  # Group/location name
    auto_archive: bool = True


class PrinterCreate(PrinterBase):
    pass


class PrinterUpdate(BaseModel):
    name: str | None = None
    ip_address: str | None = None
    access_code: str | None = None
    model: str | None = None
    location: str | None = None
    is_active: bool | None = None
    auto_archive: bool | None = None
    print_hours_offset: float | None = None


class PrinterResponse(PrinterBase):
    id: int
    is_active: bool
    nozzle_count: int = 1  # 1 or 2, auto-detected from MQTT
    print_hours_offset: float = 0.0
    created_at: datetime
    updated_at: datetime

    class Config:
        from_attributes = True


class HMSErrorResponse(BaseModel):
    code: str
    attr: int = 0  # Attribute value for constructing wiki URL
    module: int
    severity: int  # 1=fatal, 2=serious, 3=common, 4=info


class AMSTray(BaseModel):
    id: int
    tray_color: str | None = None
    tray_type: str | None = None
    tray_sub_brands: str | None = None  # Full name like "PLA Basic", "PETG HF"
    tray_id_name: str | None = None  # Bambu filament ID like "A00-Y2" (can decode to color)
    tray_info_idx: str | None = None  # Filament preset ID like "GFA00"
    remain: int = 0
    k: float | None = None  # Pressure advance value (from tray or K-profile lookup)
    cali_idx: int | None = None  # Calibration index for K-profile lookup
    tag_uid: str | None = None  # RFID tag UID (any tag)
    tray_uuid: str | None = None  # Bambu Lab spool UUID (32-char hex)
    nozzle_temp_min: int | None = None  # Min nozzle temperature
    nozzle_temp_max: int | None = None  # Max nozzle temperature


class AMSUnit(BaseModel):
    id: int
    humidity: int | None = None
    temp: float | None = None
    is_ams_ht: bool = False  # True for AMS-HT (single spool), False for regular AMS (4 spools)
    tray: list[AMSTray] = []


class NozzleInfoResponse(BaseModel):
    nozzle_type: str = ""  # "stainless_steel" or "hardened_steel"
    nozzle_diameter: str = ""  # e.g., "0.4"


class PrintOptionsResponse(BaseModel):
    """AI detection and print options from xcam data."""

    # Core AI detectors
    spaghetti_detector: bool = False
    print_halt: bool = False
    halt_print_sensitivity: str = "medium"  # Spaghetti sensitivity
    first_layer_inspector: bool = False
    printing_monitor: bool = False
    buildplate_marker_detector: bool = False
    allow_skip_parts: bool = False
    # Additional AI detectors (decoded from cfg bitmask)
    nozzle_clumping_detector: bool = True
    nozzle_clumping_sensitivity: str = "medium"
    pileup_detector: bool = True
    pileup_sensitivity: str = "medium"
    airprint_detector: bool = True
    airprint_sensitivity: str = "medium"
    auto_recovery_step_loss: bool = True
    filament_tangle_detect: bool = False


class PrinterStatus(BaseModel):
    id: int
    name: str
    connected: bool
    state: str | None = None
    current_print: str | None = None
    subtask_name: str | None = None
    gcode_file: str | None = None
    progress: float | None = None
    remaining_time: int | None = None
    layer_num: int | None = None
    total_layers: int | None = None
    temperatures: dict | None = None
    cover_url: str | None = None
    hms_errors: list[HMSErrorResponse] = []
    ams: list[AMSUnit] = []
    ams_exists: bool = False
    vt_tray: AMSTray | None = None  # Virtual tray / external spool
    sdcard: bool = False  # SD card inserted
    store_to_sdcard: bool = False  # Store sent files on SD card
    timelapse: bool = False  # Timelapse recording active
    ipcam: bool = False  # Live view enabled
    wifi_signal: int | None = None  # WiFi signal strength in dBm
    nozzles: list[NozzleInfoResponse] = []  # Nozzle hardware info (index 0=left/primary, 1=right)
    print_options: PrintOptionsResponse | None = None  # AI detection and print options
    # Calibration stage tracking
    stg_cur: int = -1  # Current stage number (-1 = not calibrating)
    stg_cur_name: str | None = None  # Human-readable current stage name
    stg: list[int] = []  # List of stage numbers in calibration sequence
    # Air conditioning mode (0=cooling, 1=heating)
    airduct_mode: int = 0
    # Print speed level (1=silent, 2=standard, 3=sport, 4=ludicrous)
    speed_level: int = 2
    # Chamber light on/off
    chamber_light: bool = False
    # Active extruder for dual nozzle (0=right, 1=left)
    active_extruder: int = 0
    # AMS mapping for dual nozzle: which AMS is connected to which nozzle
    ams_mapping: list[int] = []
    # Per-AMS extruder map: {ams_id: extruder_id} where 0=right, 1=left
    ams_extruder_map: dict[str, int] = {}
    # Currently loaded tray (global ID): 254 = external spool, 255 = no filament
    tray_now: int = 255
    # AMS status for filament change tracking
    # Main status: 0=idle, 1=filament_change, 2=rfid_identifying, 3=assist, 4=calibration
    ams_status_main: int = 0
    # Sub status: specific step within filament change (when main=1)
    # Known values: 4=retraction, 6=load verification, 7=purge
    ams_status_sub: int = 0
    # mc_print_sub_stage - filament change step indicator used by OrcaSlicer/BambuStudio
    mc_print_sub_stage: int = 0
    # Timestamp of last AMS data update (for RFID refresh detection)
    last_ams_update: float = 0.0
    # Number of printable objects in current print (for skip objects feature)
    printable_objects_count: int = 0