private function notifyOnClose(User $user, UserCollection $clients)
{
$response = new MessageResponse();
if ($user->isAsyncDetach()) {
$response->setMsg(MsgToken::create('LeavesUs', $user->getProperties()->getName()));
}
$response->setTime(null)->setGuests($clients->getUsersByChatId($user->getChannelId()))->setChannelId($user->getChannelId());
$clients->setResponse($response)->notify();
ChannelNotifier::updateChannelInfo($clients, ChannelsCollection::get());
}
