public async Task <Unit> Handle(AddBill request, CancellationToken cancellationToken)
{
if (request.Purchases.Count() == 0)
{
throw new InvalidOperationException();
}
var store = storeRepository
.Queryable()
.FirstOrDefault(s => s.Id.Equals(new StoreId(request.StoreId)));
var bill = new Bill(request.Date, store);
var productsIds = request.Purchases
.Where(p => p.Product.Id != Guid.Empty)
.Select(pu => new ProductId(pu.Product.Id))
.ToList();
var x = productRepository
.Queryable()
.Where(p => productsIds.Contains(p.Id))
.ToList();
var existingProducts = request.Purchases
.Where(p => p.Product.Id != Guid.Empty)
.Select(
p => new
{
Product = x.FirstOrDefault(pr => pr.Id == new ProductId(p.Product.Id)),
p.Amount,
p.Price
}
)
.ToList();
foreach (var product in existingProducts)
{
bill.AddPurchaseBasedOnExistingProduct(product.Product, product.Amount, product.Price);
}
var categories = categoryRepository.Queryable().ToList();
var newProducts = request.Purchases
.Where(p => p.Product.Id == Guid.Empty)
.Select(
p => new
{
p.Product,
Category = categories.FirstOrDefault(c => c.Id.Value == p.Product.CategoryId),
p.Amount,
p.Price
})
.ToList();
foreach (var product in newProducts)
{
var prod = product.Product;
var newPurchase = bill.AddPurchaseBasedOnNewProduct(
prod.Name,
prod.Barcode,
product.Category,
product.Amount,
product.Price
);
var category = categories.FirstOrDefault(cat => cat.Id.Value == prod.CategoryId);
productRepository.Insert(newPurchase.Product);
}
repository.InsertAggregate(bill);
return(Unit.Value);
}
