import { dirname } from 'path';
import { fileURLToPath } from 'url';
import { FlatCompat } from '@eslint/eslintrc';
import unusedImports from 'eslint-plugin-unused-imports';

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

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

const eslintConfig = [
  ...compat.extends('next/core-web-vitals', 'next/typescript'),
  {
    ignores: [
      'node_modules/**',
      '.next/**',
      'out/**',
      'build/**',
      'next-env.d.ts',
    ],
  },
  {
    plugins: {
      'unused-imports': unusedImports,
    },
    rules: {
      // Prefer unused-imports so unused imports can be auto-removed with --fix.
      '@typescript-eslint/no-unused-vars': 'off',
      'unused-imports/no-unused-imports': 'error',
      'unused-imports/no-unused-vars': [
        'warn',
        {
          vars: 'all',
          varsIgnorePattern: '^_',
          args: 'after-used',
          argsIgnorePattern: '^_',
        },
      ],
    },
  },
];

export default eslintConfig;