import fp from 'eslint-plugin-fp';
import js from '@eslint/js';
import globals from 'globals';
import tseslint from 'typescript-eslint';
import { defineConfig } from 'eslint/config';
import eslintConfigPrettier from 'eslint-config-prettier/flat';

export default defineConfig([
  {
    files: ['**/*.{js,mjs,cjs,ts}'],
    plugins: { js, fp },
    extends: ['js/recommended'],
    rules: {
      'fp/no-mutation': 'error',
    },
  },
  {
    files: ['**/*.{js,mjs,cjs,ts}'],
    languageOptions: { globals: globals.browser },
  },
  tseslint.configs.recommended,
  eslintConfigPrettier,
]);