eslint.config.js

import { includeIgnoreFile } from "@eslint/compat";
import path from "node:path";
import { fileURLToPath } from "node:url";
// import simpleImportSort from "eslint-plugin-simple-import-sort";
import eslint from '@eslint/js';
import tseslint from 'typescript-eslint';

const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);
const gitignorePath = path.resolve(__dirname, ".gitignore");

export default tseslint.config(
  eslint.configs.recommended,
  // ...tseslint.configs.strictTypeChecked,
  ...tseslint.configs.recommendedTypeChecked,
  ...tseslint.configs.stylisticTypeChecked,
  {
    languageOptions: {
      parserOptions: {
        project: ['./tsconfig.eslint.json', './packages/*/tsconfig.json'],
        tsconfigRootDir: __dirname,
      },
    },
  },
  includeIgnoreFile(gitignorePath),
  {
    ignores: [
      '.prettierrc.cjs',
      '**/*.mjs', // scripts
      '**/codegen.ts',
    ]
  },
  {
    rules: {
      '@typescript-eslint/no-unsafe-assignment': 'warn',
      '@typescript-eslint/no-unsafe-member-access': 'warn',
      '@typescript-eslint/consistent-type-definitions': 'warn',
      //     '@typescript-eslint/explicit-function-return-type': 'off',

  //     // Doesn't work for FC: https://github.com/yannickcr/eslint-plugin-react/issues/2353
  //     'react/prop-types': 'off',

  //     // Prefer non-default exports
  //     'import/no-default-export': 'off',
  //     'import/prefer-default-export': 'off',

      // Unary operators are ok
      'no-plusplus': 'off',

  //     // Using a type system makes it safe enough to spread props
  //     'react/jsx-props-no-spreading': 'off',

  //     // We want to be able to use functions before definition
  //     '@typescript-eslint/no-use-before-define': 'off',

      '@typescript-eslint/ban-ts-comment': [
        'error',
        { 
          'ts-expect-error': 'allow-with-description',
          minimumDescriptionLength: 5,
        },
      ],
      'no-bitwise': 'off',
    },
  },
  // {
  //   files: ['**/pages/**/*.{ts,tsx}'],
  //   rules: {
  //     'react/react-in-jsx-scope': 'off', // react is a global in this folder
  //     'import/no-default-export': 'off', // pages have to have a default export
  //     'import/prefer-default-export': 'off',
  //     '@typescript-eslint/explicit-module-boundary-types': [
  //       // So we can infer prop types
  //       'warn',
  //       { allowedNames: ['getStaticProps'] },
  //     ],
  //   },
  // },
  // {
  //   files: ['**/*.stories.*'],
  //   rules: {
  //     // Storybook requires default exports for stories
  //     'import/no-default-export': 'off',
  //     '@typescript-eslint/explicit-module-boundary-types': 'off',
  //   },
  // },
)


// export default [
//   {
//     root: true,
//     extends: [
//       // doesn't support EWSLint v9: https://github.com/airbnb/javascript/issues/2961
//       // 'airbnb-base',
//       // 'airbnb-typescript/base',
//       // 'airbnb/hooks',
//       'plugin:@typescript-eslint/eslint-recommended',
//       'plugin:@typescript-eslint/recommended',
//       'plugin:jest/recommended',
//       'prettier',
//     ],
//     parserOptions: {
//       project: 'tsconfig.json',
//       tsconfigRootDir: __dirname,
//       ecmaVersion: 6,
//     },
//     ignorePatterns: [
//       '**/codegen.ts',
//       '**/next.config.mjs',
//       '**/vite.config.ts',
//       '**/jest.config.js',
//     ],
//     plugins: { 'simple-import-sort': simpleImportSort },
//     settings: {
//       'import/resolver': { typescript: {} },
//     },
//     rules: {
//       '@typescript-eslint/explicit-function-return-type': 'off',

//       // Doesn't work for FC: https://github.com/yannickcr/eslint-plugin-react/issues/2353
//       'react/prop-types': 'off',

//       // Prefer non-default exports
//       'import/no-default-export': 'off',
//       'import/prefer-default-export': 'off',

//       // Auto-sort imports
//       'sort-imports': 'off',
//       'import/order': 'off',
//       'simple-import-sort/imports': 'error',
//       'simple-import-sort/exports': 'error',

//       // unary operators are ok
//       'no-plusplus': 'off',

//       // Using a type system makes it safe enough to spread props
//       'react/jsx-props-no-spreading': 'off',

//       // we want to be able to use functions before definition
//       '@typescript-eslint/no-use-before-define': 'off',

//       '@typescript-eslint/ban-ts-comment': [
//         'error',
//         {
//           'ts-expect-error': 'allow-with-description',
//           minimumDescriptionLength: 5,
//         },
//       ],
//       'no-bitwise': 'off',
//     },
//     overrides: [
//       {
//         // assuming Next.js application
//         files: '**/pages/**/*.{ts,tsx}',
//         rules: {
//           'react/react-in-jsx-scope': 'off', // react is a global in this folder
//           'import/no-default-export': 'off', // pages have to have a default export
//           'import/prefer-default-export': 'off',
//           '@typescript-eslint/explicit-module-boundary-types': [
//             // So we can infer prop types
//             'warn',
//             { allowedNames: ['getStaticProps'] },
//           ],
//         },
//       },
//       {
//         files: ['**/*.stories.*'],
//         rules: {
//           // Storybook requires default exports for stories
//           'import/no-default-export': 'off',
//           '@typescript-eslint/explicit-module-boundary-types': 'off',
//         },
//       },
//     ],
//     parser: '@typescript-eslint/parser',
//   }
// ]