xtm-browser-extension/eslint.config.js at main · FiligranHQ/xtm-browser-extension · GitHub

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import js from '@eslint/js';
import tseslint from 'typescript-eslint';
import react from 'eslint-plugin-react';
import reactHooks from 'eslint-plugin-react-hooks';
import globals from 'globals';

export default tseslint.config(
  // Ignore patterns
  {
    ignores: [
      'dist/**',
      'node_modules/**',
      '*.config.js',
      '*.config.ts',
      'scripts/**',
    ],
  },

  // Base JavaScript rules
  js.configs.recommended,

  // TypeScript rules
  ...tseslint.configs.recommended,

  // Main configuration for source files
  {
    files: ['src/**/*.{ts,tsx}'],
    plugins: {
      react,
      'react-hooks': reactHooks,
    },
    languageOptions: {
      parser: tseslint.parser,
      parserOptions: {
        ecmaFeatures: {
          jsx: true,
        },
        ecmaVersion: 'latest',
        sourceType: 'module',
      },
      globals: {
        ...globals.browser,
        ...globals.es2021,
        chrome: 'readonly',
      },
    },
    settings: {
      react: {
        version: 'detect',
      },
    },
    rules: {
      // ============================================
      // TypeScript Rules
      // ============================================
      '@typescript-eslint/no-unused-vars': ['error', {
        argsIgnorePattern: '^_',
        varsIgnorePattern: '^_',
        caughtErrorsIgnorePattern: '^_|^error$|^e$',
      }],
      '@typescript-eslint/no-explicit-any': 'off', // Allow any for API responses and dynamic data
      '@typescript-eslint/explicit-function-return-type': 'off',
      '@typescript-eslint/explicit-module-boundary-types': 'off',
      '@typescript-eslint/no-non-null-assertion': 'off', // Allow non-null assertions for known values
      '@typescript-eslint/no-empty-function': 'off',
      '@typescript-eslint/ban-ts-comment': ['warn', {
        'ts-expect-error': 'allow-with-description',
        'ts-ignore': false,
        'ts-nocheck': false,
      }],
      '@typescript-eslint/no-empty-interface': 'off',

      // ============================================
      // React Rules
      // ============================================
      'react/react-in-jsx-scope': 'off',
      'react/prop-types': 'off',
      'react/jsx-uses-react': 'off',
      'react/jsx-uses-vars': 'error',
      'react/jsx-key': 'error',
      'react/jsx-no-duplicate-props': 'error',
      'react/jsx-no-undef': 'error',
      'react/no-children-prop': 'error',
      'react/no-danger-with-children': 'error',
      'react/no-deprecated': 'warn',
      'react/no-direct-mutation-state': 'error',
      'react/no-unescaped-entities': 'off', // Too many false positives
      'react/self-closing-comp': 'warn',

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

      // ============================================
      // General JavaScript/Best Practices
      // ============================================
      'no-console': 'off', // Extension uses console for logging
      'no-debugger': 'error',
      'no-unused-vars': 'off',
      'prefer-const': 'error',
      'no-var': 'error',
      'eqeqeq': ['error', 'always', { null: 'ignore' }],
      'curly': ['error', 'multi-line'],
      'no-duplicate-imports': 'error',
      'no-case-declarations': 'off',
      'no-useless-escape': 'warn',
      'no-empty': ['error', { allowEmptyCatch: true }],
      'no-constant-condition': ['error', { checkLoops: false }],
      'no-template-curly-in-string': 'warn',
      'no-unreachable': 'error',
      'no-unsafe-finally': 'error',
      'no-eval': 'error',
      'no-implied-eval': 'error',
      'no-new-func': 'error',
      'no-return-await': 'warn',
      'no-throw-literal': 'error',
      'prefer-promise-reject-errors': 'error',
      'no-async-promise-executor': 'error',
    },
  },

  // Test files configuration - more relaxed
  {
    files: ['tests/**/*.{ts,tsx}'],
    languageOptions: {
      globals: {
        ...globals.node,
        describe: 'readonly',
        it: 'readonly',
        expect: 'readonly',
        beforeAll: 'readonly',
        afterAll: 'readonly',
        beforeEach: 'readonly',
        afterEach: 'readonly',
        vi: 'readonly',
      },
    },
    rules: {
      '@typescript-eslint/no-explicit-any': 'off',
      '@typescript-eslint/no-non-null-assertion': 'off',
      'no-console': 'off',
    },
  }
);