bambuddy/frontend/eslint.config.js

import js from '@eslint/js'
import globals from 'globals'
import reactHooks from 'eslint-plugin-react-hooks'
import reactRefresh from 'eslint-plugin-react-refresh'
import tseslint from 'typescript-eslint'
import { defineConfig, globalIgnores } from 'eslint/config'

export default defineConfig([
  // src/lib/vendor holds third-party build output copied in verbatim. Linting
  // it produces findings we must not act on -- editing vendored code makes it
  // impossible to re-copy on the next upstream release.
  globalIgnores(['dist', 'coverage', 'src/lib/vendor']),
  {
    files: ['**/*.{ts,tsx}'],
    extends: [
      js.configs.recommended,
      tseslint.configs.recommended,
      reactHooks.configs.flat.recommended,
      reactRefresh.configs.vite,
    ],
    languageOptions: {
      ecmaVersion: 2020,
      globals: globals.browser,
    },
    rules: {
      // Keep core React Hooks rules
      'react-hooks/rules-of-hooks': 'error',
      'react-hooks/exhaustive-deps': 'warn',
      // Disable React Compiler rules (too strict for non-compiler codebases)
      'react-hooks/static-components': 'off',
      'react-hooks/set-state-in-effect': 'off',
      'react-hooks/purity': 'off',
      'react-hooks/immutability': 'off',
      'react-hooks/preserve-manual-memoization': 'off',
      'react-hooks/refs': 'off',
    },
  },
  // Relaxed rules for test files
  {
    files: ['**/__tests__/**/*.{ts,tsx}', '**/*.test.{ts,tsx}', '**/*.spec.{ts,tsx}'],
    rules: {
      '@typescript-eslint/no-explicit-any': 'off',
      '@typescript-eslint/no-unused-vars': ['error', { argsIgnorePattern: '^_', varsIgnorePattern: '^_' }],
      'react-refresh/only-export-components': 'off',
    },
  },
  // Files that legitimately export non-components (contexts, hooks, utilities)
  {
    files: [
      '**/contexts/**/*.{ts,tsx}',
      '**/hooks/**/*.{ts,tsx}',
      '**/components/IconPicker.tsx',
      '**/components/Layout.tsx',
      '**/components/HMSErrorModal.tsx',
    ],
    rules: {
      'react-refresh/only-export-components': 'off',
    },
  },
])