/*!
 * Jodit Editor (https://xdsoft.net/jodit/)
 * Licensed under GNU General Public License version 2 or later or a commercial license or MIT;
 * For GPL see LICENSE-GPL.txt in the project root for license information.
 * For MIT see LICENSE-MIT.txt in the project root for license information.
 * For commercial licenses see https://xdsoft.net/jodit/commercial/
 * Copyright (c) 2013-2019 Valeriy Chupurnov. All rights reserved. https://xdsoft.net
 */

import { Config } from '../Config';
import * as consts from '../constants';
import { debounce } from '../modules/helpers/async';
import { $$ } from '../modules/helpers/selector';
import { IJodit } from '../types';

declare module '../Config' {
	interface Config {
		mediaInFakeBlock: boolean;
		mediaFakeTag: string;
		mediaBlocks: string[];
	}
}

/**
 * @property {string} mediaFakeTag='jodit-media' Decorate media element with tag
 */
Config.prototype.mediaFakeTag = 'jodit-media';

/**
 * @property {boolean} mediaInFakeBlock=true Decorate media elements
 */
Config.prototype.mediaInFakeBlock = true;

/**
 * @property {string[]} mediaBlocks=['video', 'audio'] Media tags
 */
Config.prototype.mediaBlocks = ['video', 'audio'];

export function media(editor: IJodit) {
	const keyFake: string = 'jodit_fake_wrapper';

	const { mediaFakeTag, mediaBlocks, mediaInFakeBlock } = editor.options;

	const wrap = (element: HTMLElement) => {
		if (
			element.parentNode &&
			(element.parentNode as HTMLElement).getAttribute(
				'data-jodit_iframe_wrapper'
			)
		) {
			element = element.parentNode as HTMLElement;
		} else {
			let wrapper: HTMLElement;

			wrapper = editor.create.inside.fromHTML(
				'<' +
					mediaFakeTag +
					' data-jodit-temp="1" ' +
					'contenteditable="false" ' +
					'draggable="true" ' +
					'data-' +
					keyFake +
					'="1">' +
					'</' +
					mediaFakeTag +
					'>'
			);

			wrapper.style.display =
				element.style.display === 'inline-block'
					? 'inline-block'
					: 'block';
			wrapper.style.width = element.offsetWidth + 'px';
			wrapper.style.height = element.offsetHeight + 'px';

			if (element.parentNode) {
				element.parentNode.insertBefore(wrapper, element);
			}

			wrapper.appendChild(element);

			element = wrapper;
		}

		editor.events
			.off(element, 'mousedown.select touchstart.select')
			.on(element, 'mousedown.select touchstart.select', () => {
				editor.selection.setCursorAfter(element);
			});
	};

	if (mediaInFakeBlock) {
		editor.events
			.on('afterGetValueFromEditor', (data: { value: string }) => {
				const rxp = new RegExp(
					`<${mediaFakeTag}[^>]+data-${keyFake}[^>]+>(.+?)</${mediaFakeTag}>`,
					'ig'
				);

				if (rxp.test(data.value)) {
					data.value = data.value.replace(rxp, '$1');
				}
			})
			.on(
				'change afterInit afterSetMode',
				debounce(() => {
					if (
						!editor.isDestructed &&
						editor.getMode() !== consts.MODE_SOURCE
					) {
						$$(mediaBlocks.join(','), editor.editor).forEach(
							(elm: HTMLElement) => {
								if (!(elm as any)['__' + keyFake]) {
									(elm as any)['__' + keyFake] = true;
									wrap(elm);
								}
							}
						);
					}
				}, editor.defaultTimeout)
			);
	}
}