eslint.config.mjs

import typescriptEslint from '@typescript-eslint/eslint-plugin';
import pluginHeader from 'eslint-plugin-header';
import mocha from 'eslint-plugin-mocha';
import tsdoc from 'eslint-plugin-tsdoc';
import simpleImportSort from 'eslint-plugin-simple-import-sort';
import _import from 'eslint-plugin-import';
import { fixupPluginRules } from '@eslint/compat';
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';

pluginHeader.rules.header.meta.schema = false;

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',
			'test/loader.js',
			'**/build',
			'**/types',
			'examples/assets/prism.js',
			'examples/build/',
			'!test-results/'
		]
	},
	...compat.extends(
		'eslint:recommended',
		'plugin:prettier/recommended',
		'plugin:@typescript-eslint/eslint-recommended',
		'plugin:@typescript-eslint/recommended'
	),
	{
		plugins: {
			'@typescript-eslint': typescriptEslint,
			pluginHeader,
			mocha,
			tsdoc,
			'simple-import-sort': simpleImportSort,
			import: fixupPluginRules(_import)
		},

		languageOptions: {
			globals: {
				...globals.browser,
				...globals.node,
				Set: true,
				setCursorToChar: true,
				createPoint: true,
				afterEach: true,
				SynchronousPromise: true,
				mocha: true,
				chai: true,
				Promise: true,
				defaultPermissions: true,
				getOpenedPopup: true,
				getOpenedDialog: true,
				getBox: true,
				offset: true,
				i18nkeys: true,
				appendTestDiv: true,
				getButton: true,
				clickTrigger: true,
				clickButton: true,
				sortAttributes: true,
				onLoadImage: true,
				sortStyles: true,
				simulateEvent: true,
				simulatePaste: true,
				beforeEach: true,
				describe: true,
				it: true,
				getJodit: true,
				Jodit: true,
				expect: true,
				unmockPromise: true,
				appendTestArea: true,
				mockPromise: true,
				fillBoxBr: true,
				selectCells: true,
				before: true,
				after: true,
				FileImage: true,
				FileXLS: true
			},

			parser: tsParser
		},

		rules: {
			complexity: ['warn', 20],
			'no-octal-escape': 0,
			'@typescript-eslint/no-unsafe-declaration-merging': 'off',
			'mocha/no-skipped-tests': 'error',
			'mocha/no-exclusive-tests': 'error',
			'tsdoc/syntax': 'warn',
			strict: ['error', 'never'],

			'import/no-cycle': [
				'error',
				{
					maxDepth: 3
				}
			],

			'no-with': 'error',
			'no-caller': 'error',
			'no-delete-var': 'error',
			'no-proto': 'off',
			'valid-typeof': 'error',
			'no-undef': 'off',

			eqeqeq: [
				'error',
				'always',
				{
					null: 'never'
				}
			],

			'no-new': 'error',
			'no-new-func': 'error',
			'no-new-object': 'error',
			'no-new-symbol': 'error',
			'no-new-wrappers': 'error',
			'no-array-constructor': 'error',
			'new-parens': 'error',
			'max-classes-per-file': ['error', 1],
			'no-extend-native': 'off',
			'no-global-assign': 'error',
			'no-implicit-globals': 'error',
			'no-implicit-coercion': 'error',
			camelcase: 'off',

			quotes: [
				'error',
				'single',
				{
					avoidEscape: true
				}
			],

			'quote-props': [
				'error',
				'as-needed',
				{
					keywords: false,
					numbers: false
				}
			],

			'jsx-quotes': 'error',
			// TODO https://github.com/Stuk/eslint-plugin-header/issues/57
			// 'header/header': [2, 'src/header.js'],
			'no-mixed-spaces-and-tabs': 'off',
			'no-empty': 'off',
			'@typescript-eslint/no-unsafe-function-type': 'off',
			'@typescript-eslint/no-unused-expressions': 'off',
			'@typescript-eslint/no-empty-interface': 'off',
			'@typescript-eslint/ban-types': 'off',
			'@typescript-eslint/ban-ts-comment': 'off',
			'@typescript-eslint/no-empty-function': 'off',
			'@typescript-eslint/no-this-alias': 'off',
			'@typescript-eslint/no-inferrable-types': 'off',
			'@typescript-eslint/no-explicit-any': 'off',
			'@typescript-eslint/no-var-requires': 'off',
			'@typescript-eslint/no-unused-vars': 'off',
			'@typescript-eslint/explicit-function-return-type': 'off',
			'@typescript-eslint/explicit-module-boundary-types': 'error',
			'no-fallthrough': 'off',

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

			'simple-import-sort/exports': 'error',
			'import/first': 'error',
			'import/newline-after-import': 'error',
			'import/no-duplicates': 'error',

			'simple-import-sort/imports': [
				'error',
				{
					groups: [
						[
							'jodit/types.*\\u0000$',
							'jodit/types',
							'jodit/.*\\u0000$',
							'jodit/core',
							'jodit/config',
							'jodit/modules'
						],
						['^\\u0000'],
						[
							'^\\.\\.(?!/?$)\u0000',
							'^\\.\\./?.*\\u0000$',
							'^\\.\\.(?!/?$)',
							'^\\.\\./?$'
						],
						[
							'^\\./?.*\\u0000$',
							'^\\./(?=.*/)(?!/?$)',
							'^\\.(?!/?$)',
							'^\\./?$'
						],
						['^.+\\.s?(css|less)$']
					]
				}
			]
		}
	},
	{
		files: ['**/*.ts', '**/*.tsx'],

		rules: {
			'@typescript-eslint/explicit-function-return-type': ['error']
		}
	}
];