module.exports = {
  env: {
    browser: false,
    commonjs: true,
    es6: true,
    node: true,
    jest: true,
  },
  extends: [
    'eslint:recommended',
    'plugin:node/recommended',
    'plugin:jest/recommended',
  ],
  plugins: ['node', 'jest'],
  parserOptions: {
    ecmaVersion: 2022,
    sourceType: 'module',
  },
  rules: {
    // Code Quality
    'no-console': process.env.NODE_ENV === 'production' ? 'error' : 'warn',
    'no-debugger': process.env.NODE_ENV === 'production' ? 'error' : 'warn',
    'no-unused-vars': ['error', { argsIgnorePattern: '^_' }],
    'no-var': 'error',
    'prefer-const': 'error',
    'prefer-arrow-callback': 'error',
    'arrow-spacing': 'error',
    
    // Style
    'indent': ['error', 2],
    'linebreak-style': ['error', 'unix'],
    'quotes': ['error', 'single'],
    'semi': ['error', 'always'],
    'comma-dangle': ['error', 'always-multiline'],
    'object-curly-spacing': ['error', 'always'],
    'array-bracket-spacing': ['error', 'never'],
    'space-before-blocks': 'error',
    'keyword-spacing': 'error',
    'space-infix-ops': 'error',
    'eol-last': 'error',
    'no-trailing-spaces': 'error',
    'max-len': ['warn', { code: 120, ignoreComments: true }],
    
    // Functions
    'func-names': 'off',
    'space-before-function-paren': ['error', {
      anonymous: 'always',
      named: 'never',
      asyncArrow: 'always',
    }],
    
    // Objects
    'object-shorthand': 'error',
    'quote-props': ['error', 'as-needed'],
    
    // Arrays
    'array-callback-return': 'error',
    
    // Error Handling
    'handle-callback-err': 'error',
    'no-throw-literal': 'error',
    
    // Security
    'no-eval': 'error',
    'no-implied-eval': 'error',
    'no-new-func': 'error',
    
    // Node.js specific
    'node/no-unpublished-require': 'error',
    'node/no-missing-require': 'error',
    'node/no-deprecated-api': 'error',
    'node/prefer-global/buffer': ['error', 'always'],
    'node/prefer-global/console': ['error', 'always'],
    'node/prefer-global/process': ['error', 'always'],
    'node/prefer-promises/dns': 'error',
    'node/prefer-promises/fs': 'error',
    
    // Jest specific
    'jest/no-disabled-tests': 'warn',
    'jest/no-focused-tests': 'error',
    'jest/no-identical-title': 'error',
    'jest/prefer-to-have-length': 'warn',
    'jest/valid-expect': 'error',
  },
  overrides: [
    {
      files: ['**/*.test.js', '**/*.spec.js'],
      env: {
        jest: true,
      },
      rules: {
        'no-console': 'off',
      },
    },
    {
      files: ['src/database/migrations/**/*.js', 'src/database/seeds/**/*.js'],
      rules: {
        'node/no-unpublished-require': 'off',
      },
    },
  ],
};