eslint.config.mjs

import { FlatCompat } from '@eslint/eslintrc';
import js from '@eslint/js';
import typescriptEslint from '@typescript-eslint/eslint-plugin';
import tsParser from '@typescript-eslint/parser';
import lit from 'eslint-plugin-lit';
import { configs } from 'eslint-plugin-wc';
import globals from 'globals';
import path from 'node:path';
import { fileURLToPath } from 'node:url';

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 [
  {
    ignores: ['**/node_modules', '**/dist', '**/coverage', '**/*.d.ts'],
  },
  ...compat.extends('eslint:recommended', 'plugin:@typescript-eslint/recommended', 'plugin:lit/recommended'),
  {
    ...configs.recommended,
    plugins: {
      '@typescript-eslint': typescriptEslint,
      lit,
    },

    languageOptions: {
      globals: {
        ...globals.browser,
      },

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

    rules: {
      'no-async-promise-executor': 'off',
      '@typescript-eslint/no-unused-vars': 'off',
      '@typescript-eslint/no-explicit-any': 'off',
      '@typescript-eslint/explicit-function-return-type': 'off',
      '@typescript-eslint/no-inferrable-types': 'off',
      '@typescript-eslint/explicit-module-boundary-types': 'off',
      'no-new': 'warn',
      quotes: [
        'error',
        'single',
        {
          avoidEscape: true,
        },
      ],
      'no-var': 'error',
      curly: 'error',
      'no-floating-decimal': 'error',
      'arrow-body-style': [
        'error',
        'as-needed',
        {
          requireReturnForObjectLiteral: false,
        },
      ],
    },
  },
];