<?php
  /**
  * ownCloud
  *
  * @author Michael Gapczynski
  * @copyright 2012 Michael Gapczynski mtgap@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\Contacts\Share;
  use OCA\Contacts;
  
  class Contact implements \OCP\Share_Backend {
  
  	const FORMAT_CONTACT = 0;
  
  	private static $contact;
  
  	public function __construct() {
  		// Currently only share
  		$this->backend = new Backend\Database();
  	}
  
  	public function isValidSource($itemSource, $uidOwner) {
  		self::$contact = VCard::find($itemSource);
  		if (self::$contact) {
  			return true;
  		}
  		return false;
  	}
  
  	public function generateTarget($itemSource, $shareWith, $exclude = null) {
  		// TODO Get default addressbook and check for conflicts
  		return self::$contact['fullname'];
  	}
  
  	public function formatItems($items, $format, $parameters = null) {
  		$contacts = array();
  		if ($format == self::FORMAT_CONTACT) {
  			foreach ($items as $item) {
  				$contact = VCard::find($item['item_source']);
  				$contact['fullname'] = $item['item_target'];
  				$contacts[] = $contact;
  			}
  		}
  		return $contacts;
  	}
  
  }