public void DeleteChatRoom(DeleteFriendRequest room)
{
ChatRoom c = _chatRoomRepository.GetById(room.RoomId);
UserChatRoom cr1 = _userChatRoomRepository.GetUserChatRoomByFK(room.UserId, room.RoomId);
_userChatRoomRepository.Delete(cr1);
c.NumOfMember--;
if (c.NumOfMember == 0)
{
_chatRoomRepository.Delete(c);
}
else
{
_chatRoomRepository.Update(c);
}
}