text: <?php
  /**
   * @copyright Copyright (c) 2016, ownCloud GmbH.
   *
   * @author Christoph Wurst <christoph@winzerhof-wurst.at>
   * @author Joas Schilling <coding@schilljs.com>
   * @author Jörn Friedrich Dreyer <jfd@butonic.de>
   * @author Roeland Jago Douma <roeland@famdouma.nl>
   * @author Thomas Müller <thomas.mueller@tmit.eu>
   *
   * @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 OCA\Files_Trashbin\Command;
  
  use OCA\Files_Trashbin\Expiration;
  use OCA\Files_Trashbin\Helper;
  use OCA\Files_Trashbin\Trashbin;
  use OCP\IUser;
  use OCP\IUserManager;
  use Symfony\Component\Console\Command\Command;
  use Symfony\Component\Console\Helper\ProgressBar;
  use Symfony\Component\Console\Input\InputArgument;
  use Symfony\Component\Console\Input\InputInterface;
  use Symfony\Component\Console\Output\OutputInterface;
  
  class ExpireTrash extends Command {
  
  	/**
  	 * @var Expiration
  	 */
  	private $expiration;
  
  	/**
  	 * @var IUserManager
  	 */
  	private $userManager;
  
  	/**
  	 * @param IUserManager|null $userManager
  	 * @param Expiration|null $expiration
  	 */
  	public function __construct(IUserManager $userManager = null,
  								Expiration $expiration = null) {
  		parent::__construct();
  
  		$this->userManager = $userManager;
  		$this->expiration = $expiration;
  	}
  
  	protected function configure() {
  		$this
  			->setName('trashbin:expire')
  			->setDescription('Expires the users trashbin')
  			->addArgument(
  				'user_id',
  				InputArgument::OPTIONAL | InputArgument::IS_ARRAY,
  				'expires the trashbin of the given user(s), if no user is given the trash for all users will be expired'
  			);
  	}
  
  	protected function execute(InputInterface $input, OutputInterface $output): int {
  		$maxAge = $this->expiration->getMaxAgeAsTimestamp();
  		if (!$maxAge) {
  			$output->writeln("No expiry configured.");
  			return 1;
  		}
  
  		$users = $input->getArgument('user_id');
  		if (!empty($users)) {
  			foreach ($users as $user) {
  				if ($this->userManager->userExists($user)) {
  					$output->writeln("Remove deleted files of   <info>$user</info>");
  					$userObject = $this->userManager->get($user);
  					$this->expireTrashForUser($userObject);
  				} else {
  					$output->writeln("<error>Unknown user $user</error>");
  					return 1;
  				}
  			}
  		} else {
  			$p = new ProgressBar($output);
  			$p->start();
  			$this->userManager->callForSeenUsers(function (IUser $user) use ($p) {
  				$p->advance();
  				$this->expireTrashForUser($user);
  			});
  			$p->finish();
  			$output->writeln('');
  		}
  		return 0;
  	}
  
  	public function expireTrashForUser(IUser $user) {
  		$uid = $user->getUID();
  		if (!$this->setupFS($uid)) {
  			return;
  		}
  		$dirContent = Helper::getTrashFiles('/', $uid, 'mtime');
  		Trashbin::deleteExpiredFiles($dirContent, $uid);
  	}
  
  	/**
  	 * Act on behalf on trash item owner
  	 * @param string $user
  	 * @return boolean
  	 */
  	protected function setupFS($user) {
  		\OC_Util::tearDownFS();
  		\OC_Util::setupFS($user);
  
  		// Check if this user has a trashbin directory
  		$view = new \OC\Files\View('/' . $user);
  		if (!$view->is_dir('/files_trashbin/files')) {
  			return false;
  		}
  
  		return true;
  	}
  }
  