/**
* Display p2p chat by user ID.
*
* @param int $userId User ID
* @param int $size Response size
* @return Response
*/
public function getChatByUser($userId, $size = 20)
{
if ((int) $userId > 0 && !is_null($user = User::find((int) $userId))) {
if (!is_null($chat = $user->getChatWithUser(Auth::user()->id))) {
$size = (int) $size > 0 ? (int) $size : 20;
$unread = array('messages' => array(), 'chats' => array());
MessageUnread::whereRaw('chat_id = ? and user_id = ?', array($chat->id, Auth::user()->id))->get()->each(function ($message) use(&$unread) {
$unread['messages'][] = $message->message_id;
$unread['chats'][] = $message->chat_id;
});
$cleared = ChatCleared::whereRaw('chat_id = ? and user_id = ?', array($chat->id, Auth::user()->id))->get()->first();
$query = 'select a.* from messages a where a.chat_id = ' . $chat->id;
if (count($unread['messages']) > 0) {
$query .= ' and a.id not in (' . implode(',', $unread['messages']) . ')';
}
if ($cleared) {
$query .= ' and a.id > ' . $cleared->message_id;
}
$query .= ' and id not in (select b.message_id from messages_removed b where b.chat_id = chat_id)' . ' order by a.timestamp desc limit ' . $size;
$messages = DB::select($query);
if (count($unread['messages']) > 0) {
$unreadMessages = DB::table('messages')->whereRaw('chat_id = ? and id in (' . implode(',', $unread['messages']) . ')' . ' and id not in (select b.message_id from messages_removed b where b.chat_id = chat_id)', array($chat->id))->orderBy('timestamp', 'desc');
$messages = array_merge($messages, $unreadMessages->get());
}
$result = array();
if (count($messages) > 0) {
$result = array('chat_id' => $chat->id, 'topic' => $chat->topic, 'timestamp' => $chat->getTimestamp(), 'users' => $chat->getUsersArray(), 'messages' => array());
foreach ($messages as $message) {
$data = (new Message((array) $message))->getAsArray();
if (in_array($message->chat_id, $unread['chats'])) {
$data['unread'] = true;
}
$result['messages'][] = $data;
}
}
return $this->respond($result);
} else {
return $this->respondWithCustomStatusCode('Chat doesnt exist', 404, 1100);
}
} else {
return $this->respondWithError('User doesn\'t exist');
}
}
/**
* Clear the chat.
*
* @param $chatId Chat ID
* @return Response
*/
public function clearChatHistory($chatId)
{
if (($chat = Chat::find($chatId)) && $chat->hasMember(Auth::user()->id)) {
$lastMessage = Message::where('chat_id', $chat->id)->orderBy('id', 'desc')->take(1)->get()->first();
ChatCleared::whereRaw('chat_id = ? and user_id = ?', array($chat->id, Auth::user()->id))->delete();
$cleared = new ChatCleared();
$cleared->chat_id = $chat->id;
$cleared->user_id = Auth::user()->id;
$cleared->message_id = $lastMessage->id;
$cleared->save();
return $this->respondNoContent();
} else {
return $this->respondWithError('Chat isn\'t found');
}
}