<?php declare(strict_types = 1);
/*
** Copyright (C) 2001-2026 Zabbix SIA
**
** This program is free software: you can redistribute it and/or modify it under the terms of
** the GNU Affero General Public License as published by the Free Software Foundation, version 3.
**
** 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 Affero General Public License for more details.
**
** You should have received a copy of the GNU Affero General Public License along with this program.
** If not, see <https://www.gnu.org/licenses/>.
**/

final class CItemTypeFactory {

	/**
	 * An array of created object instances.
	 *
	 * @param array
	 */
	private static $instances = [];

	/**
	 * @param int $type
	 *
	 * @return CItemType
	 *
	 * @throws APIException
	 */
	public static function getObject(int $type): CItemType {
		if (array_key_exists($type, self::$instances)) {
			return self::$instances[$type];
		}

		switch ($type) {
			case ITEM_TYPE_ZABBIX:
				return self::$instances[$type] = new CItemTypeZabbix();

			case ITEM_TYPE_TRAPPER:
				return self::$instances[$type] = new CItemTypeTrapper();

			case ITEM_TYPE_SIMPLE:
				return self::$instances[$type] = new CItemTypeSimple();

			case ITEM_TYPE_INTERNAL:
				return self::$instances[$type] = new CItemTypeInternal();

			case ITEM_TYPE_ZABBIX_ACTIVE:
				return self::$instances[$type] = new CItemTypeZabbixActive();

			case ITEM_TYPE_EXTERNAL:
				return self::$instances[$type] = new CItemTypeExternal();

			case ITEM_TYPE_DB_MONITOR:
				return self::$instances[$type] = new CItemTypeDbMonitor();

			case ITEM_TYPE_IPMI:
				return self::$instances[$type] = new CItemTypeIpmi();

			case ITEM_TYPE_SSH:
				return self::$instances[$type] = new CItemTypeSsh();

			case ITEM_TYPE_TELNET:
				return self::$instances[$type] = new CItemTypeTelnet();

			case ITEM_TYPE_CALCULATED:
				return self::$instances[$type] = new CItemTypeCalculated();

			case ITEM_TYPE_JMX:
				return self::$instances[$type] = new CItemTypeJmx();

			case ITEM_TYPE_SNMPTRAP:
				return self::$instances[$type] = new CItemTypeSnmpTrap();

			case ITEM_TYPE_DEPENDENT:
				return self::$instances[$type] = new CItemTypeDependent();

			case ITEM_TYPE_HTTPAGENT:
				return self::$instances[$type] = new CItemTypeHttpAgent();

			case ITEM_TYPE_SNMP:
				return self::$instances[$type] = new CItemTypeSnmp();

			case ITEM_TYPE_SCRIPT:
				return self::$instances[$type] = new CItemTypeScript();

			case ITEM_TYPE_BROWSER:
				return self::$instances[$type] = new CItemTypeBrowser();

			case ITEM_TYPE_NESTED:
				return self::$instances[$type] = new CItemTypeNested();
		}

		throw new APIException(ZBX_API_ERROR_INTERNAL, 'Incorrect item type.');
	}
}
