<?php declare(strict_types = 0);
/*
** Zabbix
** Copyright (C) 2001-2023 Zabbix SIA
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
**/


use Zabbix\Widgets\Fields\CWidgetFieldTimeZone;

class CWidgetFieldTimeZoneView extends CWidgetFieldSelectView {

	public function __construct(CWidgetFieldTimeZone $field) {
		parent::__construct($field);
	}

	public function getJavaScript(): string {
		return '
			var timezone_select = document.getElementById("'.$this->field->getName().'");
			var timezone_from_list = timezone_select.getOptionByValue(Intl.DateTimeFormat().resolvedOptions().timeZone);
			var local_list_item = timezone_select.getOptionByValue("'.TIMEZONE_DEFAULT_LOCAL.'");

			if (timezone_from_list && local_list_item) {
				const title = `${local_list_item.label}: ${timezone_from_list.label}`;
				local_list_item.label = title;
				local_list_item._node.innerText = title;

				if (timezone_select.selectedIndex === local_list_item._index) {
					timezone_select._preselect(timezone_select.selectedIndex);
				}
			}
		';
	}
}