/*!
 * 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 { Dom } from '../modules/Dom';
import { $$, css } from '../modules/helpers/';
import { ToolbarIcon } from '../modules/toolbar/icon';
import { IControlType } from '../types/toolbar';
import { IJodit } from '../types';

Config.prototype.controls.align = {
	name: 'left',
	tooltip: 'Align',
	getLabel: (editor: IJodit, btn, button): boolean => {
		const current: Node | false = editor.selection.current();

		if (current) {
			const currentBox: HTMLElement =
				(Dom.closest(
					current,
					node => Dom.isBlock(node, editor.editorWindow),
					editor.editor
				) as HTMLElement) || editor.editor;

			let currentValue: string = css(currentBox, 'text-align').toString();

			if (
				btn.defaultValue &&
				btn.defaultValue.indexOf(currentValue) !== -1
			) {
				currentValue = 'left';
			}

			if (
				button &&
				btn.data &&
				btn.data.currentValue !== currentValue &&
				btn.list &&
				(btn.list as string[]).indexOf(currentValue) !== -1
			) {
				button.textBox.innerHTML = !editor.options.textIcons
					? ToolbarIcon.getIcon(currentValue, '')
					: `<span>${currentValue}</span>`;
				(button.textBox.firstChild as HTMLElement).classList.add(
					'jodit_icon'
				);
				btn.data.currentValue = currentValue;
			}
		}

		return false;
	},
	isActive: (editor: IJodit, btn): boolean => {
		const current: Node | false = editor.selection.current();

		if (current && btn.defaultValue) {
			const currentBox: HTMLElement =
				(Dom.closest(
					current,
					node => Dom.isBlock(node, editor.editorWindow),
					editor.editor
				) as HTMLElement) || editor.editor;
			return (
				btn.defaultValue.indexOf(
					css(currentBox, 'text-align').toString()
				) === -1
			);
		}

		return false;
	},
	defaultValue: ['left', 'start', 'inherit'],
	data: {
		currentValue: 'left'
	},
	list: ['center', 'left', 'right', 'justify']
} as IControlType;

Config.prototype.controls.center = {
	command: 'justifyCenter',
	css: {
		'text-align': 'center'
	},
	tooltip: 'Align Center'
};
Config.prototype.controls.justify = {
	command: 'justifyFull',
	css: {
		'text-align': 'justify'
	},
	tooltip: 'Align Justify'
};
Config.prototype.controls.left = {
	command: 'justifyLeft',
	css: {
		'text-align': 'left'
	},
	tooltip: 'Align Left'
};
Config.prototype.controls.right = {
	command: 'justifyRight',
	css: {
		'text-align': 'right'
	},
	tooltip: 'Align Right'
};

/**
 * Process commands: `justifyfull`, `justifyleft`, `justifyright`, `justifycenter`
 *
 * @param {Jodit} editor
 */
export function justify(editor: IJodit) {
	const callback = (command: string): false | void => {
		const justifyElm = (box: HTMLElement) => {
			if (box instanceof (editor.editorWindow as any).HTMLElement) {
				switch (command.toLowerCase()) {
					case 'justifyfull':
						box.style.textAlign = 'justify';
						break;
					case 'justifyright':
						box.style.textAlign = 'right';
						break;
					case 'justifyleft':
						box.style.textAlign = 'left';
						break;
					case 'justifycenter':
						box.style.textAlign = 'center';
						break;
				}
			}
		};

		editor.selection.focus();

		editor.selection.eachSelection(
			(current: Node): false | void => {
				if (!current) {
					if (editor.editor.querySelector('.jodit_selected_cell')) {
						$$('.jodit_selected_cell', editor.editor).forEach(
							justifyElm
						);
						return false;
					}
				}

				if (!(current instanceof (editor.editorWindow as any).Node)) {
					return;
				}

				let currentBox: HTMLElement | false | null = current
					? (Dom.up(
							current,
							node => Dom.isBlock(node, editor.editorWindow),
							editor.editor
					  ) as HTMLElement)
					: false;

				if (!currentBox && current) {
					currentBox = Dom.wrapInline(
						current,
						editor.options.enterBlock,
						editor
					);
				}

				justifyElm(currentBox as HTMLElement);
			}
		);

		return false;
	};

	editor.registerCommand('justifyfull', callback);
	editor.registerCommand('justifyright', callback);
	editor.registerCommand('justifyleft', callback);
	editor.registerCommand('justifycenter', callback);
}