actual/eslint.config.mjs

import oxlint from 'eslint-plugin-oxlint';
import pluginPerfectionist from 'eslint-plugin-perfectionist';
import pluginTypescriptPaths from 'eslint-plugin-typescript-paths';
import { defineConfig } from 'eslint/config';
import globals from 'globals';
import pluginTypescript from 'typescript-eslint';

import pluginActual from './packages/eslint-plugin-actual/lib/index.js';

export default defineConfig(
  {
    ignores: [
      'packages/api/app/bundle.api.js',
      'packages/api/app/stats.json',
      'packages/api/@types',
      'packages/api/migrations',
      'packages/crdt/src/proto/sync_pb.js',
      'packages/component-library/src/icons/**/*',
      'packages/desktop-client/bundle.browser.js',
      'packages/desktop-client/dev-dist/',
      'packages/desktop-client/service-worker/*',
      'packages/desktop-client/build-electron/',
      'packages/desktop-client/build-stats/',
      'packages/desktop-client/public/kcab/',
      'packages/desktop-client/public/data/',
      'packages/desktop-client/test-results/',
      'packages/desktop-client/playwright-report/',
      'packages/desktop-electron/client-build/',
      'packages/loot-core/**/lib-dist/*',
      'packages/loot-core/**/proto/*',
      'packages/sync-server/coverage/',
      'packages/sync-server/user-files/',
      'packages/sync-server/server-files/',
      '.yarn/*',
      '.github/*',
      '**/build/',
      '**/dist/',
      '**/node_modules/',
    ],
  },
  {
    linterOptions: {
      reportUnusedDisableDirectives: true,
    },
    languageOptions: {
      globals: {
        ...globals.browser,
        ...globals.commonjs,
        ...globals.node,
        ...globals.jest,
        globalThis: false,
        vi: true,

        RequestInfo: true,
        RequestInit: true,
        ParentNode: true,
        FS: true,
        IDBValidKey: true,
        NodeJS: true,
        Electron: true,

        // Worker globals
        FetchEvent: true,
        ExtendableEvent: true,
        ExtendableMessageEvent: true,
        ServiceWorkerGlobalScope: true,
      },
    },
    settings: {
      react: {
        version: 'detect',
      },
    },
  },
  pluginTypescript.configs.base,
  {
    plugins: {
      actual: pluginActual,
      perfectionist: pluginPerfectionist,
    },
    rules: {
      'actual/typography': 'warn',
      'actual/no-untranslated-strings': 'error',
      'actual/prefer-trans-over-t': 'error',
    },
  },
  {
    files: ['**/*.{js,ts,jsx,tsx,mjs,mts}'],
    rules: {
      // http://eslint.org/docs/rules/
      'no-dupe-args': 'warn',
      'no-new-object': 'warn',
      'no-new-symbol': 'warn',
      'no-octal': 'warn',
      'no-octal-escape': 'warn',
      strict: ['warn', 'never'],

      'no-restricted-properties': [
        'error',
        {
          object: 'require',
          property: 'ensure',
          message:
            'Please use import() instead. More info: https://facebook.github.io/create-react-app/docs/code-splitting',
        },
        {
          object: 'System',
          property: 'import',
          message:
            'Please use import() instead. More info: https://facebook.github.io/create-react-app/docs/code-splitting',
        },
      ],

      'perfectionist/sort-imports': [
        'warn',
        {
          groups: [
            'react',
            'builtin',
            'external',
            'loot-core',
            'parent',
            'sibling',
            'index',
            'desktop-client',
          ],
          customGroups: [
            {
              groupName: 'react',
              elementNamePattern: '^react(-.*)?$',
            },
            {
              groupName: 'loot-core',
              elementNamePattern: '^loot-core',
            },
            {
              groupName: 'desktop-client',
              elementNamePattern: '^@desktop-client',
            },
          ],
          newlinesBetween: 'always',
        },
      ],

      'actual/prefer-if-statement': 'warn',
      'actual/prefer-logger-over-console': 'error',

      'object-shorthand': ['warn', 'properties'],

      'no-restricted-syntax': [
        'warn',
        {
          // forbid React.* as they are legacy https://twitter.com/dan_abramov/status/1308739731551858689
          selector:
            ":matches(MemberExpression[object.name='React'], TSQualifiedName[left.name='React'])",
          message:
            'Using default React import is discouraged, please use named exports directly instead.',
        },
        {
          // forbid <a> in favor of <Link>
          selector: 'JSXOpeningElement[name.name="a"]',
          message: 'Using <a> is discouraged, please use <Link> instead.',
        },
      ],

      // Rules disabled during TS migration
      'prefer-const': 'warn',
    },
  },
  {
    files: ['packages/desktop-client/**/*.{js,ts,jsx,tsx}'],
    plugins: {
      'typescript-paths': pluginTypescriptPaths,
    },
    rules: {
      'typescript-paths/absolute-parent-import': [
        'error',
        { preferPathOverBaseUrl: true },
      ],
      'typescript-paths/absolute-import': ['error', { enableAlias: false }],
    },
  },
  {
    files: [
      'eslint.config.mjs',
      '**/*.test.js',
      '**/*.test.ts',
      '**/*.test.jsx',
      '**/*.test.tsx',
      '**/*.spec.js',
    ],

    rules: {
      'actual/no-untranslated-strings': 'off',
      'actual/prefer-logger-over-console': 'off',
    },
  },
  {
    files: ['packages/docs/**/*'],
    rules: {
      'actual/no-untranslated-strings': 'off',
      'no-restricted-syntax': 'off',
    },
  },
  // Disable ESLint rules that are already covered by oxlint
  // This must be at the end to override previous rule configurations
  ...oxlint.configs['flat/recommended'],
);