<?php
/**
 * @author Morris Jobke <hey@morrisjobke.de>
 * @author Robin Appelman <icewind@owncloud.com>
 * @author Thomas Müller <thomas.mueller@tmit.eu>
 *
 * @copyright Copyright (c) 2018, ownCloud GmbH
 * @license AGPL-3.0
 *
 * This code is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License, version 3,
 * as published by the Free Software Foundation.
 *
 * 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, version 3,
 * along with this program.  If not, see <http://www.gnu.org/licenses/>
 *
 */

namespace OC\BackgroundJob;

use OCP\BackgroundJob\IJob;
use OCP\ILogger;

abstract class Job implements IJob {
	/**
	 * @var int $id
	 */
	protected $id;

	/**
	 * @var int $lastRun
	 */
	protected $lastRun;

	/**
	 * @var mixed $argument
	 */
	protected $argument;

	/**
	 * @param JobList $jobList
	 * @param ILogger $logger
	 */
	public function execute($jobList, ILogger $logger = null) {
		$jobList->setLastRun($this);
		try {
			//storing job start time
			$jobStartTime = time();

			\OCP\Util::writeLog('cron', 'Started background job of class : ' . get_class($this) . ' with arguments : ' . print_r($this->argument, true), \OCP\Util::DEBUG);

			$this->run($this->argument);

			//storing job end time
			$jobEndTime = time();
			$timeTaken = $jobEndTime - $jobStartTime;

			\OCP\Util::writeLog('cron', "Finished background job, the job took : $timeTaken seconds, " . 
				"this job is an instance of class : " . get_class($this) . ' with arguments : ' . print_r($this->argument, true), \OCP\Util::DEBUG);

			$jobList->setExecutionTime($this, $timeTaken);
		} catch (\Exception $e) {
			if ($logger) {
				$logger->logException($e, [
					'app' => 'core',
					'message' => 'Error while running background job (class: ' . get_class($this) . ', arguments: ' . print_r($this->argument, true) . ')'
				]);
			}
		}
	}

	abstract protected function run($argument);

	public function setId($id) {
		$this->id = $id;
	}

	public function setLastRun($lastRun) {
		$this->lastRun = $lastRun;
	}

	public function setArgument($argument) {
		$this->argument = $argument;
	}

	public function getId() {
		return $this->id;
	}

	public function getLastRun() {
		return $this->lastRun;
	}

	public function getArgument() {
		return $this->argument;
	}
}
