public IActionResult Callback([FromBody] Updates updates)
        {
            switch (updates.Type)
            {
            case "confirmation":
                return(Ok(_configuration["Config:Confirmation"]));

            case "message_new":
            {
                // Десериализация
                var msg    = Message.FromJson(new VkResponse(updates.Object));
                var peerId = msg.PeerId;

                if (msg.Text == "/log")
                {
                    LogMessage(updates, msg);
                    break;
                }

                if (JoinGroupTest(peerId, msg, updates.GroupId))
                {
                    break;
                }

                var user = _usersState.GetUser(peerId.Value);
                if (user == null || user != null && !user.RequestToJoinGroptSent)
                {
                    FirstTimeEnter(peerId, updates.GroupId);
                }
                else
                {
                    SendMessage(peerId, "Если хочешь вступить в эту супер илитную групку, то отвечай на вопросы! " +
                                "И используй кнопки! 😠");
                    SendMessage(peerId, user.LastQuestion, user.LastKeyboard);
                }

                break;
            }

            case "group_join":
            {
                var peerId = GroupJoin.FromJson(new VkResponse(updates.Object)).UserId;

                FirstTimeEnter(peerId, updates.GroupId);

                break;
            }
            }

            return(Ok("ok"));
        }
        /// <summary>
        /// Разобрать из json.
        /// </summary>
        /// <param name="response"> Ответ сервера. </param>
        /// <returns> </returns>
        public static GroupUpdate FromJson(VkResponse response)
        {
            var fromJson = JsonConvert.DeserializeObject <GroupUpdate>(response.ToString());

            var resObj = response["object"];

            switch (fromJson.Type)
            {
            case GroupLongPollUpdateType.MessageNew:
            case GroupLongPollUpdateType.MessageEdit:
            case GroupLongPollUpdateType.MessageReply:
                fromJson.Message = resObj;
                fromJson.UserId  = fromJson.Message.FromId;
                break;

            case GroupLongPollUpdateType.MessageAllow:
                fromJson.MessageAllow = MessageAllow.FromJson(resObj);
                fromJson.UserId       = fromJson.MessageAllow.UserId;
                break;

            case GroupLongPollUpdateType.MessageDeny:
                fromJson.MessageDeny = MessageDeny.FromJson(resObj);
                fromJson.UserId      = fromJson.MessageDeny.UserId;
                break;

            case GroupLongPollUpdateType.PhotoNew:
                fromJson.Photo = resObj;
                break;

            case GroupLongPollUpdateType.PhotoCommentNew:
            case GroupLongPollUpdateType.PhotoCommentEdit:
            case GroupLongPollUpdateType.PhotoCommentRestore:
                fromJson.PhotoComment = PhotoComment.FromJson(resObj);
                fromJson.UserId       = fromJson.PhotoComment.FromId;
                break;

            case GroupLongPollUpdateType.PhotoCommentDelete:
                fromJson.PhotoCommentDelete = PhotoCommentDelete.FromJson(resObj);
                fromJson.UserId             = fromJson.PhotoCommentDelete.DeleterId;
                break;

            case GroupLongPollUpdateType.AudioNew:
                fromJson.Audio = resObj;
                break;

            case GroupLongPollUpdateType.VideoNew:
                fromJson.Video = resObj;
                break;

            case GroupLongPollUpdateType.VideoCommentNew:
            case GroupLongPollUpdateType.VideoCommentEdit:
            case GroupLongPollUpdateType.VideoCommentRestore:
                fromJson.VideoComment = VideoComment.FromJson(resObj);
                fromJson.UserId       = fromJson.VideoComment.FromId;
                break;

            case GroupLongPollUpdateType.VideoCommentDelete:
                fromJson.VideoCommentDelete = VideoCommentDelete.FromJson(resObj);
                fromJson.UserId             = fromJson.VideoCommentDelete.DeleterId;
                break;

            case GroupLongPollUpdateType.WallPostNew:
            case GroupLongPollUpdateType.WallRepost:
                fromJson.WallPost = WallPost.FromJson(resObj);
                fromJson.UserId   = fromJson.WallPost.FromId > 0 ? fromJson.WallPost.FromId : null;
                break;

            case GroupLongPollUpdateType.WallReplyNew:
            case GroupLongPollUpdateType.WallReplyEdit:
            case GroupLongPollUpdateType.WallReplyRestore:
                fromJson.WallReply = WallReply.FromJson(resObj);
                fromJson.UserId    = fromJson.WallReply.FromId;
                break;

            case GroupLongPollUpdateType.WallReplyDelete:
                fromJson.WallReplyDelete = WallReplyDelete.FromJson(resObj);
                fromJson.UserId          = fromJson.WallReplyDelete.DeleterId;
                break;

            case GroupLongPollUpdateType.BoardPostNew:
            case GroupLongPollUpdateType.BoardPostEdit:
            case GroupLongPollUpdateType.BoardPostRestore:
                fromJson.BoardPost = BoardPost.FromJson(resObj);
                fromJson.UserId    = fromJson.BoardPost.FromId > 0 ? fromJson.BoardPost.FromId : (long?)null;
                break;

            case GroupLongPollUpdateType.BoardPostDelete:
                fromJson.BoardPostDelete = BoardPostDelete.FromJson(resObj);
                break;

            case GroupLongPollUpdateType.MarketCommentNew:
            case GroupLongPollUpdateType.MarketCommentEdit:
            case GroupLongPollUpdateType.MarketCommentRestore:
                fromJson.MarketComment = MarketComment.FromJson(resObj);
                fromJson.UserId        = fromJson.MarketComment.FromId;
                break;

            case GroupLongPollUpdateType.MarketCommentDelete:
                fromJson.MarketCommentDelete = MarketCommentDelete.FromJson(resObj);
                fromJson.UserId = fromJson.MarketCommentDelete.DeleterId;
                break;

            case GroupLongPollUpdateType.GroupLeave:
                fromJson.GroupLeave = GroupLeave.FromJson(resObj);
                fromJson.UserId     = fromJson.GroupLeave.IsSelf == true ? fromJson.GroupLeave.UserId : null;
                break;

            case GroupLongPollUpdateType.GroupJoin:
                fromJson.GroupJoin = GroupJoin.FromJson(resObj);
                fromJson.UserId    = fromJson.GroupJoin.UserId;
                break;

            case GroupLongPollUpdateType.UserBlock:
                fromJson.UserBlock = UserBlock.FromJson(resObj);
                fromJson.UserId    = fromJson.UserBlock.AdminId;
                break;

            case GroupLongPollUpdateType.UserUnblock:
                fromJson.UserUnblock = UserUnblock.FromJson(resObj);
                fromJson.UserId      = fromJson.UserUnblock.ByEndDate == true ? null : fromJson.UserUnblock.AdminId;
                break;

            case GroupLongPollUpdateType.PollVoteNew:
                fromJson.PollVoteNew = PollVoteNew.FromJson(resObj);
                fromJson.UserId      = fromJson.PollVoteNew.UserId;
                break;

            case GroupLongPollUpdateType.GroupChangePhoto:
                fromJson.GroupChangePhoto = GroupChangePhoto.FromJson(resObj);
                fromJson.UserId           = fromJson.GroupChangePhoto.UserId;
                break;

            case GroupLongPollUpdateType.GroupOfficersEdit:
                fromJson.GroupOfficersEdit = GroupOfficersEdit.FromJson(resObj);
                fromJson.UserId            = fromJson.GroupOfficersEdit.AdminId;
                break;
            }

            return(fromJson);
        }