.eslintrc.cjs

module.exports = {
  root: true,
  env: {
    browser: true,
    node: true,
    es2022: true,
  },
  parser: '@typescript-eslint/parser',
  parserOptions: {
    ecmaVersion: 'latest',
    sourceType: 'module',
    ecmaFeatures: {
      jsx: true,
    },
    project: ['./tsconfig.json', './tsconfig.server.json'],
  },
  plugins: ['@typescript-eslint', 'react', 'react-hooks'],
  extends: [
    'eslint:recommended',
    'plugin:@typescript-eslint/recommended',
    'plugin:react/recommended',
    'plugin:react/jsx-runtime',
    'plugin:react-hooks/recommended',
  ],
  settings: {
    react: {
      version: 'detect',
    },
  },
  rules: {
    // TypeScript
    '@typescript-eslint/no-unused-vars': [
      'error',
      {
        argsIgnorePattern: '^_',
        varsIgnorePattern: '^_',
        caughtErrorsIgnorePattern: '^_',
      },
    ],
    '@typescript-eslint/no-explicit-any': 'warn',
    '@typescript-eslint/consistent-type-imports': [
      'error',
      { prefer: 'type-imports' },
    ],
    '@typescript-eslint/no-non-null-assertion': 'warn',

    // React
    'react/prop-types': 'off', // TypeScript handles this
    'react/jsx-no-target-blank': 'error',
    'react/jsx-curly-brace-presence': ['error', { props: 'never', children: 'never' }],

    // React Hooks
    'react-hooks/rules-of-hooks': 'error',
    'react-hooks/exhaustive-deps': 'warn',

    // General best practices
    'no-console': ['warn', { allow: ['warn', 'error'] }],
    'no-debugger': 'error',
    'no-duplicate-imports': 'error',
    'no-unused-expressions': 'error',
    'prefer-const': 'error',
    'no-var': 'error',
    eqeqeq: ['error', 'always', { null: 'ignore' }],
    curly: ['error', 'all'],

    // Code style (minimal - let Prettier handle formatting if used later)
    'no-multiple-empty-lines': ['error', { max: 1, maxEOF: 0 }],
    'no-trailing-spaces': 'error',
    'eol-last': ['error', 'always'],
  },
  overrides: [
    // Server-specific rules
    {
      files: ['src/server/**/*.ts'],
      rules: {
        'no-console': 'off', // Console is fine for server logging
      },
    },
    // Config files
    {
      files: ['*.config.js', '*.config.ts', '.eslintrc.cjs'],
      rules: {
        '@typescript-eslint/no-var-requires': 'off',
      },
    },
  ],
  ignorePatterns: ['dist', 'node_modules', '*.min.js'],
};