public async Task <PaymentDetails> GetPaymentDetails(GatewayPaymentId paymentGatewayId)
{
//Simulate IO
await Task.Delay(1);
return(_storage[paymentGatewayId]);
}
public void RememberMapping(AcquiringBankPaymentId acquiringBankPaymentId, GatewayPaymentId gatewayPaymentId)
{
if (!_map.TryAdd(acquiringBankPaymentId, gatewayPaymentId))
{
//Can happen only when Acquiring bank sent duplicated unique identifier for a payment
throw new BankDuplicatedPaymentIdException($"Bank paymentId {acquiringBankPaymentId} already maps to Gateway Payment Id {_map[acquiringBankPaymentId]}");
}
}
public async Task Update(GatewayPaymentId gatewayPaymentId, PaymentStatus paymentStatus)
{
//Simulate IO
await Task.Delay(1);
var paymentDetails = _storage[gatewayPaymentId];
paymentDetails.Update(paymentStatus);
}
public async Task Create(GatewayPaymentId gatewayPaymentId, PaymentGateway.Domain.Card card)
{
//Simulate IO
await Task.Delay(1);
if (!_storage.TryAdd(gatewayPaymentId, new PaymentDetails(new Domain.Card(Mask(card.Number), card.Expiry, card.Cvv))))
{
// Can happen only if the read projected receive twice the same `PaymentRequested`
// For a real distributed message bus, it can never deliver once and only once for a message
// We should ensure the operation on duplicated message is idempotent, just log in this case
_logger.LogInformation($"{nameof(PaymentRequested)} of gateway id {gatewayPaymentId} has already been handled. We received duplicated message from message bus");
}
}
