public async Task <AppResponse> Handle(TCommand request, CancellationToken cancellationToken)
{
return(await Task.Factory.StartNew(() => {
Exception = new TransactionFailedException();
var fromErrorCode = From.DecreaseBalance(request.Amount, request.TransactionId);
CheckDecreaseBalanceResult(fromErrorCode, request);
var toErrorCode = To.IncreaseBalance(request.Amount, request.TransactionId);
CheckIncreaseBalanceResult(toErrorCode, request);
return AppResponse.Success(null);
}));
}
private void StartTransaction()
{
double fromAmount = Amount, toAmount = Amount;
if (From.Currency != Currency || To.Currency != Currency)
{
if (From.Currency != Currency)
{
fromAmount = CurrencyTools.Convert(Amount, From.Currency, Currency);
}
if (To.Currency != Currency)
{
toAmount = CurrencyTools.Convert(Amount, To.Currency, Currency);
}
}
From.DecreaseBalance(fromAmount);
To.IncreaseBalance(toAmount);
}