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<?php
/**
 * purge_cache.php - Purges the file cache.
 * 
 * @author André Noack <noack@data-quest.de>, Suchi & Berg GmbH <info@data-quest.de>
 * @author Jan-Hendrik Willms <tleilax+studip@gmail.com>
 * @access public
 * @since  2.4
 */

// +---------------------------------------------------------------------------+
// This file is part of Stud.IP
// purge_cache.php
// 
// Copyright (C) 2013 Jan-Hendrik Willms <tleilax+studip@gmail.com>
// +---------------------------------------------------------------------------+
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or 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 General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
// +---------------------------------------------------------------------------+

require_once 'lib/classes/CronJob.php';

class PurgeCacheJob extends CronJob
{
    /**
     * Returns the name of the cronjob.
     */
    public static function getName()
    {
        return _('Dateicache leeren');
    }

    /**
     * Returns the description of the cronjob.
     */
    public static function getDescription()
    {
        return _('Leert den dateibasierten Cache');
    }

    /**
     * Return the paremeters for this cronjob.
     *
     * @return Array Parameters.
     */
    public static function getParameters()
    {
        return [
            'verbose' => [
                'type'        => 'boolean',
                'default'     => false,
                'status'      => 'optional',
                'description' => _('Sollen Ausgaben erzeugt werden (sind später im Log des Cronjobs sichtbar)'),
            ],
        ];
    }

    /**
     * Setup method. Loads the neccessary classes.
     */
    public function setUp()
    {
        require_once 'lib/classes/cache/FileCache.php';
    }

    /**
     * Execute the cronjob.
     *
     * @param mixed $last_result What the last execution of this cronjob
     *                           returned.
     * @param Array $parameters Parameters for this cronjob instance which
     *                          were defined during scheduling.
     *                          Only valid parameter at the moment is
     *                          "verbose" which toggles verbose output while
     *                          purging the cache.
     */
    public function execute($last_result, $parameters = [])
    {
        $cache = new \Studip\Cache\FileCache();
        $cache->purge(empty($parameters['verbose']));
    }
}