public async Task <Result <Guid> > Handle(CreateProductCommand request, CancellationToken token)
{
var reference = request.Reference;
if (!string.IsNullOrWhiteSpace(reference))
{
var existingEntity =
await _context.Products.AnyAsync(
p => p.Reference == reference && p.ProducerId == request.ProducerId, token);
if (existingEntity)
{
return(Failure <Guid>($"Un produit existe déjà avec la référence {reference}."));
}
}
else
{
var resultIdentifier =
await _identifierService.GetNextProductReferenceAsync(request.ProducerId, token);
if (!resultIdentifier.Succeeded)
{
return(Failure <Guid>(resultIdentifier));
}
reference = resultIdentifier.Data;
}
var producer = await _context.Producers.SingleAsync(e => e.Id == request.ProducerId, token);
using (var transaction = await _context.BeginTransactionAsync(token))
{
var entity = new Domain.Product(Guid.NewGuid(), reference, request.Name, request.Conditioning,
request.Unit, request.QuantityPerUnit, producer);
entity.SetVat(request.Vat);
entity.SetDescription(request.Description);
entity.SetAvailable(request.Available ?? true);
entity.SetWeight(request.Weight);
if (request.ReturnableId.HasValue)
{
var returnable =
await _context.Returnables.SingleAsync(e => e.Id == request.ReturnableId.Value, token);
entity.SetReturnable(returnable);
}
var tags = await _context.Tags.Where(t => request.Tags.Contains(t.Id)).ToListAsync(token);
entity.SetTags(tags);
if (request.Catalogs != null)
{
foreach (var catalogPrice in request.Catalogs)
{
var catalog = await _context.Catalogs.SingleAsync(e => e.Id == catalogPrice.CatalogId, token);
entity.AddOrUpdateCatalogPrice(catalog, catalogPrice.WholeSalePricePerUnit);
}
}
await _context.AddAsync(entity, token);
await _context.SaveChangesAsync(token);
if (request.Pictures != null && request.Pictures.Any())
{
var result = Success <string>();
foreach (var picture in request.Pictures.OrderBy(p => p.Position))
{
var id = Guid.NewGuid();
result = await _imageService.HandleProductPictureAsync(entity, id, picture.Data, token);
if (!result.Succeeded)
{
break;
}
if (!string.IsNullOrWhiteSpace(result.Data))
{
entity.AddPicture(new ProductPicture(id, result.Data, picture.Position));
}
}
if (!result.Succeeded)
{
return(Failure <Guid>(result));
}
}
else
{
var picture = _imageService.GetDefaultProductPicture(tags);
entity.AddPicture(new ProductPicture(Guid.NewGuid(), picture, 0));
}
producer.IncreaseProductsCount();
await _context.SaveChangesAsync(token);
await transaction.CommitAsync(token);
if (!request.SkipUpdateProducerTags)
{
_mediatr.Post(new UpdateProducerTagsCommand(request.RequestUser)
{
ProducerId = request.ProducerId
});
}
return(Success(entity.Id));
}
}
