public async Task <IIdentifierResult> HandleAsync(ICreateSale command, ICorrelationContext context)
{
await Task.WhenAll(
_agVerifier.AssertExists(command.AccountingGroupId),
_userVerifier.AssertExists(command.UserId),
_posVerifier.AssertExists(command.PointOfSaleId),
_amVerifier.AssertExists(command.AuthenticationMeansId),
_productVerifier.AssertExists(command.ProductId),
_offerVerifier.AssertExists(command.OfferId)
);
var sale = new Domain.Sale(command.Id, command.Cost, command.Quantity, command.AccountingGroupId, command.UserId, command.AuthenticationMeansId, command.PointOfSaleId, command.ProductId, command.OfferId);
var initialSaleStateChange = new Domain.SaleStateChange(Guid.NewGuid(), "Created", default(SaleState), command.PointOfSaleId, null);
sale.AddStateChange(initialSaleStateChange);
await _salesRepository.AddAsync(sale);
try
{
await _salesRepository.SaveChanges();
}
catch (EntityAlreadyExistsException)
{
throw new BaristaException("sale_already_exists", $"A sale with the ID '{command.Id}' already exists.");
}
await _busPublisher.Publish(new SaleCreated(sale));
await _busPublisher.Publish(new SaleStateChangeCreated(initialSaleStateChange.Id, sale.Id,
initialSaleStateChange.Created, initialSaleStateChange.Reason, initialSaleStateChange.State.ToString(),
initialSaleStateChange.CausedByPointOfSaleId, initialSaleStateChange.CausedByUserId));
return(new IdentifierResult(sale.Id));
}
public async Task <IOperationResult> HandleAsync(IUpdateOffer command, ICorrelationContext context)
{
if (command == null)
{
throw new ArgumentNullException(nameof(command));
}
var offer = await _repository.GetAsync(command.Id);
if (offer is null)
{
throw new BaristaException("offer_not_found", $"Could not find offer with ID '{command.Id}'");
}
await Task.WhenAll(
_posVerifier.AssertExists(command.PointOfSaleId),
_productVerifier.AssertExists(command.ProductId),
command.StockItemId != null?_stockItemVerifier.AssertExists(command.StockItemId.Value) : Task.CompletedTask
);
offer.SetPointOfSaleId(command.PointOfSaleId);
offer.SetProductId(command.ProductId);
offer.SetRecommendedPrice(command.RecommendedPrice);
offer.SetStockItemId(command.StockItemId);
offer.SetValidity(command.ValidSince, command.ValidUntil);
await _repository.UpdateAsync(offer);
await _repository.SaveChanges();
await _busPublisher.Publish(new OfferUpdated(offer.Id, offer.PointOfSaleId, offer.ProductId,
offer.RecommendedPrice, offer.StockItemId, offer.ValidSince, offer.ValidUntil));
return(OperationResult.Ok());
}
public async Task <IIdentifierResult> HandleAsync(ICreateOffer command, ICorrelationContext context)
{
if (command == null)
{
throw new ArgumentNullException(nameof(command));
}
await Task.WhenAll(
_posVerifier.AssertExists(command.PointOfSaleId),
_productVerifier.AssertExists(command.ProductId),
command.StockItemId != null?_stockItemVerifier.AssertExists(command.StockItemId.Value) : Task.CompletedTask
);
var offer = new Domain.Offer(command.Id, command.PointOfSaleId, command.ProductId, command.RecommendedPrice, command.StockItemId, command.ValidSince, command.ValidUntil);
await _repository.AddAsync(offer);
try
{
await _repository.SaveChanges();
}
catch (EntityAlreadyExistsException)
{
throw new BaristaException("offer_already_exists", $"An offer with the ID '{command.Id}' already exists.");
}
await _busPublisher.Publish(new OfferCreated(offer.Id, offer.PointOfSaleId, offer.ProductId,
offer.RecommendedPrice, offer.StockItemId, offer.ValidSince, offer.ValidUntil));
return(new IdentifierResult(offer.Id));
}
public async Task <IOperationResult> HandleAsync(IUpdateSale command, ICorrelationContext context)
{
var sale = await _salesRepository.GetAsync(command.Id);
if (sale is null)
{
throw new BaristaException("sale_not_found", $"Sale with ID '{command.Id}' was not found");
}
await Task.WhenAll(
_agVerifier.AssertExists(command.AccountingGroupId),
_userVerifier.AssertExists(command.UserId),
_posVerifier.AssertExists(command.PointOfSaleId),
_amVerifier.AssertExists(command.AuthenticationMeansId),
_productVerifier.AssertExists(command.ProductId),
_offerVerifier.AssertExists(command.OfferId)
);
sale.SetAuthenticationMeansId(command.AuthenticationMeansId);
sale.SetAccountingGroupId(command.AccountingGroupId);
sale.SetCost(command.Cost);
sale.SetPointOfSaleId(command.PointOfSaleId);
sale.SetQuantity(command.Quantity);
sale.SetUserId(command.UserId);
sale.SetProductId(command.ProductId);
sale.SetOfferId(command.OfferId);
await _salesRepository.UpdateAsync(sale);
await _salesRepository.SaveChanges();
await _busPublisher.Publish(new SaleUpdated(sale));
return(OperationResult.Ok());
}