/// <summary>
        /// creates a new <see cref="VideoPokerGame"/>
        /// </summary>
        /// <param name="userid">is of user</param>
        /// <param name="bet">bet for game</param>
        /// <returns></returns>
        public VideoPokerGame CreateGame(long userid, int bet)
        {
            context.GetModule <PlayerModule>().UpdateGold(userid, -bet);
            VideoPokerGame game = games[userid] = new VideoPokerGame {
                Bet  = bet,
                Deck = CardStack.Fresh(),
                Hand = new Board()
            };

            return(game);
        }
        public override void ExecuteCommand(IChatChannel channel, StreamCommand command) {
            VideoPokerGame game = pokermodule.GetGame(command.Service, command.User);
            long userid = playermodule.GetPlayer(command.Service, command.User).UserID;
            HandEvaluation evaluation;

            if (game == null) {
                if(command.Arguments.Length == 0) {
                    SendMessage(channel, command.User, "You have to specify a bet amount");
                    return;
                }

                int bet;
                int.TryParse(command.Arguments[0], out bet);
                if(bet <= 0) {
                    SendMessage(channel, command.User, $"{command.Arguments[0]} is no valid bet");
                    return;
                }

                if (bet > playermodule.GetPlayerGold(userid)) {
                    SendMessage(channel, command.User, "You can't bet more than you have.");
                    return;
                }

                int maxbet = playermodule.GetLevel(userid) * 10;
                if (bet > maxbet) {
                    SendMessage(channel, command.User, $"On your level you're only allowed to bet up to {maxbet} gold.");
                    return;
                }

                game = pokermodule.CreateGame(command.Service, command.User, bet);
                game.IsMaxBet = bet == maxbet;
                game.Deck.Shuffle();
                for(int i = 0; i < 5; ++i)
                    game.Hand += game.Deck.Pop();

                RPGMessageBuilder message = messagemodule.Create();
                message.User(userid).Text(" has ");
                foreach(Card card in game.Hand)
                    message.Image(imagemodule.GetCardUrl(card), $"{card} ");

                evaluation = HandEvaluator.Evaluate(game.Hand);
                message.Text($"({evaluation})").Send();
            }
            else {
                RPGMessageBuilder message = messagemodule.Create();

                if(command.Arguments.Length > 0) {
                    int redraw = 0;
                    foreach(string argument in command.Arguments) {
                        if(argument.All(c => char.IsDigit(c))) {
                            int index = int.Parse(argument);
                            if(index < 1 || index > 5) {
                                SendMessage(channel, command.User, $"{index} is not a valid slot to redraw");
                                return;
                            }
                            redraw |= 1 << (index - 1);
                        }
                        else if(argument.ToLower() == "all") {
                            redraw |= 31;
                        }
                        else {
                            int index = game.Hand.IndexOf(c => c.ToString().ToLower() == argument.ToLower());
                            if(index == -1) {
                                SendMessage(channel, command.User, $"{argument} points not to a card in your hand");
                                return;
                            }
                            redraw |= 1 << index;
                        }
                    }

                    int cards = 0;
                    for(int i = 0; i < 5; ++i) {
                        if((redraw & (1 << i)) != 0) {
                            game.Hand = game.Hand.ChangeCard(i, game.Deck.Pop());
                            ++cards;
                        }
                    }
                    message.User(userid).Text($" is redrawing {cards} cards. ");
                    foreach (Card card in game.Hand)
                        message.Image(imagemodule.GetCardUrl(card), $"{card} ");

                    evaluation = HandEvaluator.Evaluate(game.Hand);
                    message.Text($"({evaluation}).");
                }
                else {
                    evaluation = HandEvaluator.Evaluate(game.Hand);
                    message.User(userid).Text(" is satisfied with the hand.");
                }

                int multiplicator = GetMultiplicator(evaluation, game.IsMaxBet);
                if(multiplicator == 0)
                    message.Text(" ").ShopKeeper().Text(" laughs about that shitty hand.");
                else {
                    int payout = game.Bet * multiplicator;
                    playermodule.UpdateGold(userid, payout);
                    message.Text(" Payout is ").Gold(payout);
                }

                message.Send();
                pokermodule.RemoveGame(command.Service, command.User);
            }
        }