.eslintrc.js

module.exports = {
  env: {
    browser: true,
    es2021: true,
    node: true,
  },
  extends: [
    'airbnb',
    'plugin:@typescript-eslint/recommended',
    'prettier',
    'next',
  ],
  plugins: ['@typescript-eslint', 'tailwindcss'],
  ignorePatterns: ['.next', '.cache', '__generated__', '**/*.graphql.d.ts'],
  parser: '@typescript-eslint/parser',
  parserOptions: {
    ecmaFeatures: {
      jsx: true,
    },
  },
  rules: {
    '@typescript-eslint/explicit-module-boundary-types': 'off',

    // camelcase: [
    //   'error',
    //   {
    //     allow: ['Prisma__UserClient', 'Prisma__PackClient', 'name_authorId'],
    //   },
    // ],

    // doesn't work with ts - use @typescript-eslint version
    'no-shadow': 'off',
    'no-use-before-define': 'off',
    '@typescript-eslint/no-shadow': 'error',
    '@typescript-eslint/no-use-before-define': 'error',

    // override airbnb
    'import/extensions': [
      'error',
      'ignorePackages',
      {
        ts: 'never',
        tsx: 'never',
      },
    ],

    'no-param-reassign': [
      'error',
      // for Array.reduce
      { ignorePropertyModificationsFor: ['accu'] },
    ],

    // completely unnecessary and annoying
    'import/prefer-default-export': 'off',

    // easier to scan
    'import/order': [
      'error',
      {
        groups: [
          'builtin',
          'external',
          'internal',
          'parent',
          'sibling',
          'index',
          'object',
          'type',
        ],
      },
    ],

    // not compatible with Next.js <Link /> components
    'jsx-a11y/anchor-is-valid': 'off',

    'react/jsx-filename-extension': ['warn', { extensions: ['.tsx'] }],

    // using jsx transform
    'react/react-in-jsx-scope': 'off',

    'react/jsx-props-no-spreading': 'off',

    'import/no-extraneous-dependencies': [
      'error',
      {
        devDependencies: ['*.config.{js,ts}', '**/*.test.ts', '**/*.preval.ts'],
      },
    ],

    'tailwindcss/classnames-order': 'warn',
    'tailwindcss/no-contradicting-classname': 'error',
  },

  settings: {
    'import/resolver': {
      typescript: {
        alwaysTryTypes: true,
      },
    },
  },

  overrides: [
    {
      files: ['*.config.{js,ts}'],
      rules: {
        'global-require': 'off',
        '@typescript-eslint/no-var-requires': 'off',
      },
    },
  ],
}