<?php
/*
** Zabbix
** Copyright (C) 2001-2021 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.
**/


class CSeverityCheckBoxList extends CCheckBoxList {

	/**
	 * Number of columns.
	 */
	private const COLUMNS = 3;

	/**
	 * Create check box list with severities.
	 *
	 * @param string $name  Field name in form.
	 */
	public function __construct(string $name) {
		parent::__construct($name);

		$this
			->setOptions(self::getSeverities())
			->addClass(ZBX_STYLE_COLUMNS)
			->addClass(ZBX_STYLE_COLUMNS_3);
	}

	/**
	 * Generate array with data for severities options ordered for showing by rows.
	 *
	 * @return array
	 */
	private static function getSeverities(): array {
		$ordered = [];
		$severities = getSeverities();
		$severities_count = count($severities);
		$max_rows = (int) ceil($severities_count / self::COLUMNS);

		for ($row = 0; $row < $max_rows; $row++) {
			for ($i = 0; $i < $severities_count; $i += $max_rows) {
				if (array_key_exists($row + $i, $severities)) {
					$ordered[$row + $i] = $severities[$row + $i];
				}
			}
		}

		return $ordered;
	}
}
