public async Task <SelectAnswerResult> Handle(SelectAnswer request, CancellationToken cancellationToken)
{
using (var transaction = repositoryTransactionsFactory.CreateTransaction())
{
var validationResult = await requestValidator.Validate(request);
if (!validationResult.IsSuccessful)
{
return(new SelectAnswerResult(validationResult.Error));
}
var answerSelected = await playerAnswersRepository.MarkAnswerAsSelected(request.PlayerAnswerId);
if (!answerSelected)
{
return(new SelectAnswerResult(GameErrors.SelectAnswerFailed));
}
var pointsAddedResult = await playerAnswersRepository.AddPointForAnswer(request.PlayerAnswerId, request.GameRoundId);
if (!pointsAddedResult.IsSuccessful)
{
return(new SelectAnswerResult(GameErrors.CouldNotAddPointToPlayer));
}
var updateWinnerResult = await gameRoundsRepository.SelectRoundWinner(request.GameRoundId, pointsAddedResult.PlayerPoints.PlayerId);
if (!updateWinnerResult)
{
return(new SelectAnswerResult(GameErrors.RoundWinnerSelectionFailed));
}
var game = await gamesRepository.GetGameById(request.GameId);
if (pointsAddedResult.PlayerPoints.Points < game.PointsLimit)
{
var createNewRoundResult = await gameRoundCreator
.CreateRound(request.GameId, request.GameRoundId);
if (!createNewRoundResult.IsSuccessful)
{
return(new SelectAnswerResult(createNewRoundResult.Error));
}
var createCardsResult = await playerCardsCreator.CreateCards(request.GameId);
if (!createCardsResult.IsSuccessful)
{
return(new SelectAnswerResult(createCardsResult.Error));
}
}
else
{
var endGameResult = await gamesRepository
.EndGame(request.GameId, pointsAddedResult.PlayerPoints.UserId);
if (!endGameResult)
{
return(new SelectAnswerResult(GameErrors.GameCouldNotBeEnded));
}
}
var checkpoint = await gameCheckpointUpdater.Update(request.GameId, nameof(SelectAnswer));
transaction.CommitTransaction();
return(new SelectAnswerResult());
}
}
