eslint.config.mjs

/* eslint-disable no-redeclare */
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 [
  ...compat.extends(
    'plugin:prettier/recommended',
    'eslint:recommended',
    'plugin:@typescript-eslint/recommended'
  ),
  {
    plugins: {
      '@typescript-eslint': typescriptEslint,
    },

    languageOptions: {
      globals: {
        ...globals.node,
        ...globals.browser,
        ElvenJS: 'readonly',
      },

      parser: tsParser,
      ecmaVersion: 2020,
      sourceType: 'commonjs',
    },

    rules: {
      'no-var': 'error',
      'prefer-const': 'error',
      'no-use-before-define': 'error',
      'no-mixed-spaces-and-tabs': 'error',
      'no-nested-ternary': 'error',

      'prettier/prettier': [
        'error',
        {
          endOfLine: 'auto',
        },
      ],

      '@typescript-eslint/explicit-module-boundary-types': 'off',
      '@typescript-eslint/no-explicit-any': 'off',
      'no-unused-vars': 'off',

      '@typescript-eslint/no-unused-vars': [
        'error',
        {
          vars: 'all',
          args: 'after-used',
          ignoreRestSiblings: false,
        },
      ],
    },
  },
];