eslint.config.cjs

/* eslint-disable @typescript-eslint/no-var-requires */

const eslint = require('@eslint/js');
const tseslint = require('typescript-eslint');
const prettierConfig = require('eslint-config-prettier');
const importPlugin = require('eslint-plugin-import');
const unicorn = require('eslint-plugin-unicorn');
const unusedImports = require('eslint-plugin-unused-imports');

module.exports = tseslint.config(
  {
    ignores: ['**/.vitepress/', '**/dist/', '**/esm/', '**/.next/', '**/.next-local/', '.pnp.*', '.yarn/'],
  },
  eslint.configs.recommended,
  prettierConfig,
  {
    plugins: { unicorn },
    rules: {
      'unicorn/filename-case': [
        'error',
        {
          case: 'kebabCase',
        },
      ],
    },
  },
  {
    rules: {
      'no-implicit-coercion': 'error',
      'no-warning-comments': [
        'warn',
        {
          terms: ['TODO', 'FIXME', 'XXX', 'BUG'],
          location: 'anywhere',
        },
      ],
      curly: ['error', 'all'],
      eqeqeq: ['error', 'always', { null: 'ignore' }],
      // TypeScript에서 이미 잡고 있는 문제이기 때문에 + location, document 등의 global variable도 잡아서
      'no-undef': 'off',
    },
  },
  {
    plugins: {
      'unused-imports': unusedImports,
    },
    rules: {
      'unused-imports/no-unused-imports': 'error',
      'unused-imports/no-unused-vars': [
        'error',
        {
          vars: 'all',
          varsIgnorePattern: '^_',
          args: 'after-used',
          argsIgnorePattern: '^_',
        },
      ],
    },
  },
  {
    plugins: {
      '@typescript-eslint': tseslint.plugin,
    },
    extends: [...tseslint.configs.recommended],
    languageOptions: {
      parser: tseslint.parser,
      parserOptions: {
        ecmaFeatures: { jsx: true },
      },
    },
    rules: {
      '@typescript-eslint/consistent-type-imports': [
        'error',
        {
          fixStyle: 'inline-type-imports',
        },
      ],
      '@typescript-eslint/explicit-function-return-type': 'off',
      '@typescript-eslint/no-var-requires': 'warn',
      '@typescript-eslint/no-non-null-asserted-optional-chain': 'warn',
      '@typescript-eslint/no-inferrable-types': 'warn',
      '@typescript-eslint/no-empty-function': 'off',
      '@typescript-eslint/naming-convention': [
        'error',
        { format: ['camelCase', 'UPPER_CASE', 'PascalCase'], selector: 'variable', leadingUnderscore: 'allow' },
        { format: ['camelCase', 'PascalCase'], selector: 'function' },
        { format: ['PascalCase'], selector: 'interface' },
        { format: ['PascalCase'], selector: 'typeAlias' },
      ],
      '@typescript-eslint/explicit-module-boundary-types': 'off',
      '@typescript-eslint/no-unused-vars': ['error', { ignoreRestSiblings: true }],
      '@typescript-eslint/member-ordering': [
        'error',
        {
          default: [
            'public-static-field',
            'private-static-field',
            'public-instance-field',
            'private-instance-field',
            'public-constructor',
            'private-constructor',
            'public-instance-method',
            'private-instance-method',
          ],
        },
      ],
    },
  },
  {
    plugins: {
      import: importPlugin,
    },
    rules: {
      'import/no-duplicates': ['error', { 'prefer-inline': true }],
      'import/order': [
        2,
        {
          groups: ['builtin', 'external', ['parent', 'sibling'], 'index'],
          alphabetize: {
            order: 'asc',
            caseInsensitive: false,
          },
        },
      ],
    },
  }
);