<?php
/**
 * @copyright Copyright (c) 2016, ownCloud, Inc.
 *
 * @author Christoph Wurst <christoph@winzerhof-wurst.at>
 * @author Daniel Kesselberg <mail@danielkesselberg.de>
 * @author Joas Schilling <coding@schilljs.com>
 * @author Lukas Reschke <lukas@statuscode.ch>
 * @author Morris Jobke <hey@morrisjobke.de>
 * @author Robin Appelman <robin@icewind.nl>
 *
 * @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 OCP\BackgroundJob;

use OCP\ILogger;

/**
 * This interface represend a backgroud job run with cron
 *
 * To implement a background job, you must extend either \OCP\BackgroundJob\Job,
 * \OCP\BackgroundJob\TimedJob or \OCP\BackgroundJob\QueuedJob
 *
 * @since 7.0.0
 */
interface IJob {
	/**
	 * @since 24.0.0
	 */
	public const TIME_INSENSITIVE = 0;
	/**
	 * @since 24.0.0
	 */
	public const TIME_SENSITIVE = 1;

	/**
	 * Run the background job with the registered argument
	 *
	 * @param IJobList $jobList The job list that manages the state of this job
	 * @param ILogger|null $logger
	 * @since 7.0.0
	 * @deprecated since 25.0.0 Use start() instead. This method will be removed
	 * with the ILogger interface
	 */
	public function execute(IJobList $jobList, ?ILogger $logger = null);

	/**
	 * Start the background job with the registered argument
	 *
	 * This methods will take care of running the background job, of initializing
	 * the state and cleaning up the job list after running the job.
	 *
	 * For common background job scenario, you will want to use TimedJob or QueuedJob
	 * instead of overwritting this method.
	 *
	 * @param IJobList $jobList The job list that manages the state of this job
	 * @since 25.0.0
	 */
	public function start(IJobList $jobList): void;

	/**
	 * @since 7.0.0
	 */
	public function setId(int $id);

	/**
	 * @since 7.0.0
	 */
	public function setLastRun(int $lastRun);

	/**
	 * @param mixed $argument
	 * @since 7.0.0
	 */
	public function setArgument($argument);

	/**
	 * Get the id of the background job
	 * This id is determined by the job list when a job is added to the list
	 *
	 * @return int
	 * @since 7.0.0
	 */
	public function getId();

	/**
	 * Get the last time this job was run as unix timestamp
	 *
	 * @return int
	 * @since 7.0.0
	 */
	public function getLastRun();

	/**
	 * Get the argument associated with the background job
	 * This is the argument that will be passed to the background job
	 *
	 * @return mixed
	 * @since 7.0.0
	 */
	public function getArgument();
}