eslint.config.mjs

import { defineConfig, globalIgnores } from 'eslint/config';
import typescriptEslint from '@typescript-eslint/eslint-plugin';
import globals from 'globals';
import tsParser from '@typescript-eslint/parser';
import path from 'node:path';
import { fileURLToPath } from 'node:url';
import js from '@eslint/js';
import { FlatCompat } from '@eslint/eslintrc';

const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);
const compat = new FlatCompat({
  baseDirectory: __dirname,
  recommendedConfig: js.configs.recommended,
  allConfig: js.configs.all,
});

export default defineConfig([
  globalIgnores(['node_modules/*', 'dist/*']),
  {
    extends: compat.extends(
      'eslint:recommended',
      'plugin:@typescript-eslint/recommended',
      'plugin:prettier/recommended'
    ),

    plugins: {
      '@typescript-eslint': typescriptEslint,
    },

    languageOptions: {
      globals: {
        ...globals.node,
      },

      parser: tsParser,
      ecmaVersion: 'latest',
      sourceType: 'module',
    },

    rules: {
      '@typescript-eslint/explicit-function-return-type': [
        'error',
        {
          allowExpressions: true,
          allowTypedFunctionExpressions: true,
        },
      ],

      '@typescript-eslint/no-explicit-any': 'warn',

      '@typescript-eslint/no-unused-vars': [
        'error',
        {
          argsIgnorePattern: '^_',
          varsIgnorePattern: '^_',
        },
      ],

      'no-console': [
        'warn',
        {
          allow: ['warn', 'error', 'info', 'log'],
        },
      ],
    },
  },
]);