Backup.php

<?php

declare(strict_types=1);


/**
 * Nextcloud - Backup now. Restore later.
 *
 * This file is licensed under the Affero General Public License version 3 or
 * later. See the COPYING file.
 *
 * @author Maxence Lange <maxence@artificial-owl.com>
 * @copyright 2021, Maxence Lange <maxence@artificial-owl.com>
 * @license GNU AGPL version 3 or any later version
 *
 * 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, either version 3 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 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 <http://www.gnu.org/licenses/>.
 *
 */


namespace OCA\Backup\Cron;

use OCP\AppFramework\Utility\ITimeFactory;
use OCP\BackgroundJob\TimedJob;
use OCA\Backup\Exceptions\JobsTimeSlotException;
use OCA\Backup\Service\ConfigService;
use OCA\Backup\Service\CronService;
use OCA\Backup\Service\PointService;
use OCA\Backup\Tools\Traits\TNCLogger;
use Psr\Log\LoggerInterface;
use Throwable;

/**
 * Class Backup
 *
 * @package OCA\Backup\Cron
 */
class Backup extends TimedJob {
	use TNCLogger;

	/**
	 * Backup constructor.
	 *
	 * @param ITimeFactory $time
	 * @param PointService $pointService
	 * @param CronService $cronService
	 * @param ConfigService $configService
	 * @param LoggerInterface $loggerInterface
	 */
	public function __construct(
		ITimeFactory $time,
		private PointService $pointService,
		private CronService $cronService,
		private ConfigService $configService,
		private LoggerInterface $loggerInterface
	) {
		parent::__construct($time);
		$this->setInterval(900);
	}


	/**
	 * @param $argument
	 */
	protected function run($argument): void {
		if (!$this->cronService->isRunnable()) {
			return;
		}

		try {
			$this->cronService->lockCron(false);
			$this->manage();
			$this->cronService->unlockCron();
		} catch (JobsTimeSlotException $e) {
			return;
		}
	}


	/**
	 *
	 */
	private function manage(): void {
		$time = time();
		if ($this->configService->getAppValueInt(ConfigService::MOCKUP_DATE) > 0) {
			$time = $this->configService->getAppValueInt(ConfigService::MOCKUP_DATE);
			$this->configService->setAppValueInt(ConfigService::MOCKUP_DATE, 0);
		}

		$this->runBackup($time);
	}


	/**
	 * @param int $time
	 */
	private function runBackup(int $time): void {
		if ($this->cronService->verifyFullBackup($time)) {
			$this->runFullBackup();
		} elseif ($this->cronService->verifyDifferentialBackup($time)) {
			$this->runDifferentialBackup();
		}
	}


	private function runFullBackup(): void {
		try {
			$generateLogs = $this->configService->getAppValueBool(ConfigService::GENERATE_LOGS);
			$this->pointService->create(
				true,
				'',
				($generateLogs) ? 'Backup Background Job (complete)' : ''
			);
		} catch (Throwable $e) {
			$this->loggerInterface->debug(
				'error while running full backup - ' . json_encode(debug_backtrace())
			);
		}
	}


	/**
	 *
	 */
	private function runDifferentialBackup(): void {
		try {
			$generateLogs = $this->configService->getAppValueBool(ConfigService::GENERATE_LOGS);
			$this->pointService->create(
				false,
				'',
				($generateLogs) ? 'Backup Background Job (partial)' : ''
			);
		} catch (Throwable $e) {
			$this->loggerInterface->error(
				'error while running differential backup - ' . json_encode(debug_backtrace())
			);
		}
	}
}