eslint.config.js

import js from '@eslint/js';
import tsParser from '@typescript-eslint/parser';
import tsPlugin from '@typescript-eslint/eslint-plugin';
import prettierConfig from 'eslint-config-prettier';
import prettierPlugin from 'eslint-plugin-prettier';

export default [
  js.configs.recommended,
  {
    ignores: [
      '**/dist/**',
      '**/coverage/**',
      '**/node_modules/**',
      '**/.next/**'
    ]
  },
  {
    files: ['**/*.ts', '**/*.tsx'],
    languageOptions: {
      parser: tsParser,
      parserOptions: {
        ecmaVersion: 'latest',
        sourceType: 'module'
      },
      globals: {
        fetch: 'readonly',
        Response: 'readonly',
        setTimeout: 'readonly',
        clearTimeout: 'readonly',
        AbortController: 'readonly',
        AbortSignal: 'readonly',
        global: 'readonly',
        console: 'readonly'
      }
    },
    plugins: {
      '@typescript-eslint': tsPlugin,
      prettier: prettierPlugin
    },
    rules: {
      ...tsPlugin.configs.recommended.rules,

      // TypeScript-specific rules
      '@typescript-eslint/no-unused-vars': [
        'error',
        { argsIgnorePattern: '^_' }
      ],
      '@typescript-eslint/no-explicit-any': 'warn',
      '@typescript-eslint/explicit-function-return-type': 'off',
      '@typescript-eslint/explicit-module-boundary-types': 'off',
      '@typescript-eslint/no-non-null-assertion': 'error',

      // General code quality rules
      'no-console': 'warn',
      'prefer-const': 'error',
      'no-var': 'error',
      eqeqeq: ['error', 'always'],
      curly: ['error', 'all'],
      'no-throw-literal': 'error',
      'prefer-template': 'error',
      'no-duplicate-imports': 'error',
      'no-return-await': 'error',
      'no-unreachable': 'error',
      'no-unreachable-loop': 'error',

      // Prettier integration
      'prettier/prettier': 'error'
    }
  },
  {
    files: ['**/*.test.ts', '**/*.spec.ts'],
    rules: {
      '@typescript-eslint/no-explicit-any': 'off',
      'no-console': 'off'
    }
  },
  {
    files: ['*.config.js', '*.config.ts', '**/vitest.config.ts'],
    rules: {
      '@typescript-eslint/no-unsafe-assignment': 'off',
      '@typescript-eslint/no-unsafe-member-access': 'off',
      'no-console': 'off'
    }
  },
  // Prettier config must be last to override any conflicting rules
  prettierConfig
];