<?php
   /**
   * ownCloud
   *
   * @author Thomas Müller
   * @copyright 2014 Thomas Müller deepdiver@owncloud.com
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
   * License as published by the Free Software Foundation; either
   * version 3 of the License, or any later version.
   *
   * This library 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 library.  If not, see <http://www.gnu.org/licenses/>.
   *
   */
  
  namespace OCA\Files_Encryption;
  
  
  class Migration {
  
  	public function __construct($tableName = 'encryption') {
  		$this->tableName = $tableName;
  	}
  
  	// migrate settings from oc_encryption to oc_preferences
  	public function dropTableEncryption() {
  		$tableName = $this->tableName;
  		if (!\OC_DB::tableExists($tableName)) {
  			return;
  		}
  		$sql = "select `uid`, max(`recovery_enabled`) as `recovery_enabled`, min(`migration_status`) as `migration_status` from `*PREFIX*$tableName` group by `uid`";
  		$query = \OCP\DB::prepare($sql);
  		$result = $query->execute(array())->fetchAll();
  
  		foreach ($result as $row) {
  			\OC_Preferences::setValue($row['uid'], 'files_encryption', 'recovery_enabled', $row['recovery_enabled']);
  			\OC_Preferences::setValue($row['uid'], 'files_encryption', 'migration_status', $row['migration_status']);
  		}
  
  		\OC_DB::dropTable($tableName);
  	}
  
  }