<?php
/*
** 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.
**/


class CLimitedSetValidator extends CValidator {

	/**
	 * Allowed values.
	 *
	 * @var array
	 */
	public $values = [];

	/**
	 * Error message if the value is invalid or is not of an acceptable type.
	 *
	 * @var string
	 */
	public $messageInvalid = null;

	/**
	 * Checks if the given value belongs to some set.
	 *
	 * @param $value
	 *
	 * @return bool
	 */
	public function validate($value) {
		if (!is_string($value) && !is_int($value)) {
			if ($this->messageInvalid !== null) {
				$this->error($this->messageInvalid, $this->stringify($value));
			}

			return false;
		}

		$values = array_flip($this->values);

		if (!isset($values[$value])) {
			if ($this->messageInvalid !== null) {
				$this->error($this->messageInvalid, $value);
			}

			return false;
		}

		return true;
	}

}