<?php
/*
 * Copyright (c) 2010-2018 Tim Düsterhus.
 *
 * Use of this software is governed by the Business Source License
 * included in the LICENSE file.
 *
 * Change Date: 2022-08-16
 *
 * On the date above, in accordance with the Business Source
 * License, use of this software will be governed by version 2
 * or later of the General Public License.
 */

namespace chat\system\command;

use \chat\data\message\MessageAction;
use \chat\data\room\Room;
use \wcf\data\user\User;
use \wcf\data\user\UserProfile;

/**
 * The where command shows the distribution of users among
 * the different chat rooms.
 */
class WhereCommand extends AbstractCommand implements ICommand {
	/**
	 * @inheritDoc
	 */
	public function getJavaScriptModuleName() {
		return 'Bastelstu.be/Chat/Command/Where';
	}

	/**
	 * @inheritDoc
	 */
	public function validate($parameters, Room $room, UserProfile $user = null) {
		if ($user === null) $user = new UserProfile(\wcf\system\WCF::getUser());
	}

	/**
	 * @inheritDoc
	 */
	public function execute($parameters, Room $room, UserProfile $user = null) {
		if ($user === null) $user = new UserProfile(\wcf\system\WCF::getUser());

		$objectTypeID = $this->getMessageObjectTypeID('be.bastelstu.chat.messageType.where');
		$roomList = new \chat\data\room\RoomList();
		$roomList->readObjects();
		$rooms = array_map(function (Room $room) {
			$users = array_map(function (\chat\data\user\User $user) {
				return $user->jsonSerialize();
			}, $room->getUsers());

			return [ 'roomID' => $room->roomID
			       , 'users' => array_values($users)
			       ];
		}, array_filter($roomList->getObjects(), function (Room $room) {
			return $room->canSee();
		}));

		(new MessageAction([ ], 'create', [ 'data' => [ 'roomID'       => $room->roomID
		                                              , 'userID'       => $user->userID
		                                              , 'username'     => $user->username
		                                              , 'time'         => TIME_NOW
		                                              , 'objectTypeID' => $objectTypeID
		                                              , 'payload'      => serialize($rooms)
		                                              ]
		                                  , 'updateTimestamp' => true
		                                  ]
		                  )
		)->executeAction();
	}
}