/**
* Update the chat info
*
* @param int|null $chatId Chat ID
* @return Response
*/
public function update($chatId = null)
{
$user = Auth::user();
if ((int) $chatId > 0 && !is_null($chat = Chat::find((int) $chatId)) && $chat->hasMember(Auth::user()->id)) {
if ((bool) Input::get('mark_as_read')) {
$this->markAsRead($chat, $user);
}
if (strlen($newTopic = (string) Input::get('topic')) > 0) {
$chat->topic = $newTopic;
$chat->save();
foreach ($chat->getMembersTokens() as $token) {
$state = new StateSender($token);
$state->setChatAsUpdated((int) $chatId, (int) Auth::user()->id);
$state->send();
}
}
if (Input::has('typing')) {
foreach ($chat->getMembersTokens() as $token) {
$state = new StateSender($token);
$state->setChatAsTyping($chatId, Auth::user()->id, (bool) Input::get('typing'));
$state->send();
}
}
if (Input::has('delivered')) {
$this->delivered($chat);
}
return $this->respondNoContent();
} else {
return $this->respondWithError('Chat doesn\'t exist');
}
}