const js = require('@eslint/js');
const stylistic = require('@stylistic/eslint-plugin');
const globals = require('globals');

module.exports = [
  js.configs.recommended,
  {
    plugins: {
      '@stylistic': stylistic
    },
    languageOptions: {
      ecmaVersion: 2020,
      sourceType: 'commonjs',
      globals: {
        ...globals.node,
        ...globals.commonjs,
        ...globals.es2020,
        Atomics: 'readonly',
        SharedArrayBuffer: 'readonly'
      }
    },
    rules: {
      // Stylistic rules (migrated from airbnb-base)
      '@stylistic/comma-dangle': ['error', 'never'],
      '@stylistic/indent': ['error', 2, { SwitchCase: 1 }],
      '@stylistic/semi': ['error', 'always'],
      '@stylistic/quotes': ['error', 'single', { avoidEscape: true }],
      '@stylistic/arrow-parens': ['error', 'always'],
      '@stylistic/brace-style': ['error', '1tbs', { allowSingleLine: true }],
      '@stylistic/comma-spacing': ['error', { before: false, after: true }],
      '@stylistic/key-spacing': ['error', { beforeColon: false, afterColon: true }],
      '@stylistic/keyword-spacing': ['error', { before: true, after: true }],
      '@stylistic/eol-last': ['error', 'always'],
      '@stylistic/no-trailing-spaces': 'error',
      '@stylistic/space-before-blocks': 'error',
      '@stylistic/space-infix-ops': 'error',
      '@stylistic/arrow-spacing': ['error', { before: true, after: true }],

      // JS rules (migrated from airbnb-base)
      'no-console': 'off',
      'no-var': 'error',
      'prefer-const': 'error',
      'prefer-arrow-callback': 'error',
      'prefer-template': 'error',
      'object-shorthand': ['error', 'always'],
      'no-shadow': 'error',
      'no-use-before-define': ['error', { functions: true, classes: true, variables: true }],
      'camelcase': ['error', { properties: 'never' }],
      'no-unused-vars': ['error', { vars: 'all', args: 'after-used', ignoreRestSiblings: true }]
    }
  }
];