<?php
namespace wcf\page;
use \wcf\data\chat;
use \wcf\system\cache\CacheHandler;
use \wcf\system\package\PackageDependencyHandler;
use \wcf\system\user\storage\UserStorageHandler;
use \wcf\system\WCF;

/**
 * Shows the chat-interface
 *
 * @author 	Tim Düsterhus
 * @copyright	2010-2011 Tim Düsterhus
 * @license	Creative Commons Attribution-NonCommercial-ShareAlike <http://creativecommons.org/licenses/by-nc-sa/3.0/legalcode>
 * @package	timwolla.wcf.chat
 * @subpackage	page
 */
class ChatRefreshRoomListPage extends AbstractPage {
	public $neededModules = array('CHAT_ACTIVE');
	//public $neededPermissions = array('user.chat.canEnter');
	public $room = null;
	public $roomID = 0;
	public $rooms = array();
	public $useTemplate = false;
	
	/**
	 * Reads room data.
	 */
	public function readData() {
		parent::readData();
		$this->readUserData();
		$this->rooms = chat\room\ChatRoom::getCache();
		
		$this->room = $this->rooms->search($this->roomID);
		if (!$this->room) throw new \wcf\system\exception\IllegalLinkException();
	}
	
	/**
	 * Reads user data.
	 */
	public function readUserData() {
		// TODO: Move this into ChatUtil
		$ush = UserStorageHandler::getInstance();
		$packageID = PackageDependencyHandler::getPackageID('timwolla.wcf.chat');
		
		// load storage
		$ush->loadStorage(array(WCF::getUser()->userID), $packageID);
		$data = $ush->getStorage(array(WCF::getUser()->userID), 'roomID', $packageID);
		
		if ($data[WCF::getUser()->userID] === null) {
			throw new \wcf\system\exception\IllegalLinkException();
		}
		
		$this->roomID = $data[WCF::getUser()->userID];
	}
	
	/**
	 * @see	\wcf\page\IPage::show()
	 */
	public function show() {
		// guests are not supported
		if (!WCF::getUser()->userID) {
			throw new \wcf\system\exception\PermissionDeniedException();
		}
		
		parent::show();
		
		@header('Content-type: application/json');
		$json = array();
		foreach ($this->rooms as $room) {
			$json[] = array(
				'title' => WCF::getLanguage()->get($room->title),
				'link' => \wcf\system\request\LinkHandler::getInstance()->getLink('Chat', array(
					'object' => $room
				)),
				'active' => $room->roomID == $this->room->roomID
			);
		}
		echo \wcf\util\JSON::encode($json);
		exit;
	}
}