eslint.config.mjs

import { FlatCompat } from '@eslint/eslintrc';
import js from '@eslint/js';
import { dirname } from 'path';
import tseslint from 'typescript-eslint';
import { fileURLToPath } from 'url';

const __filename = fileURLToPath(import.meta.url);
const __dirname = dirname(__filename);

const compat = new FlatCompat({
  baseDirectory: __dirname,
});

const eslintConfig = [
  {
    // Ignore generated, build, and dependency directories
    ignores: ['.next/**', '**/*.d.ts', 'node_modules/**'],
  },
  js.configs.recommended,
  ...tseslint.configs.recommended,
  ...compat.extends('next/core-web-vitals', 'plugin:prettier/recommended'),
  {
    files: ['**/*.{ts,tsx}'],
    languageOptions: {
      parser: tseslint.parser,
      parserOptions: {
        project: './tsconfig.json',
      },
    },
    rules: {
      'no-implicit-coercion': 'error',
      'no-console': 'off',
      '@typescript-eslint/no-unused-vars': [
        'warn',
        { argsIgnorePattern: '^_', varsIgnorePattern: '^_' },
      ],
      'no-unused-vars': 'off',
      'no-warning-comments': [
        'warn',
        {
          terms: ['TODO', 'FIXME', 'XXX', 'BUG'],
          location: 'anywhere',
        },
      ],
      '@typescript-eslint/no-explicit-any': 'warn',
      '@typescript-eslint/no-use-before-define': 'off',
      '@typescript-eslint/no-empty-interface': 'off',
      '@typescript-eslint/explicit-function-return-type': 'off',
      '@typescript-eslint/no-inferrable-types': 'warn',
      '@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' },
      ],
      'prefer-object-has-own': 'error',
    },
  },
];

export default eslintConfig;