private async Task TryAddProduct(Pharmacy pharmacy, TransactionProductDTO dto, Transaction transaction)
{
var productInPharmacy = pharmacy.Products.FirstOrDefault(pb => pb.Id == dto.ProductBalanceId);
if (productInPharmacy == null)
{
throw new ResourceNotFoundException("productBalance");
}
if (productInPharmacy.Amount < dto.Amount)
{
throw new ArgumentException("amount");
}
productInPharmacy.Amount -= dto.Amount;
var requiredAmount = pharmacy.RequiredMedicamentAmounts
.FirstOrDefault(rma => rma.MedicamentId == productInPharmacy.MedicamentId);
if (IsRestockRequired(requiredAmount, productInPharmacy))
{
await Restock(pharmacy, requiredAmount, productInPharmacy);
}
transaction.AddProduct(productInPharmacy, dto.Amount);
}
private async Task <ProductBalance> CreateProductBalance(TransactionProductDTO product)
{
var productBalance = await _context.ProductBalances
.Where(pb => pb.Id == product.ProductBalanceId)
.Include(pb => pb.Medicament)
.FirstOrDefaultAsync();
if (productBalance == null)
{
throw new NullReferenceException();
}
return(new ProductBalance(productBalance, product.Amount));
}
private async Task <CreateOrderDTO> CreateOrderDTO(RequiredMedicamentAmount requiredAmount,
ProductBalance productInPharmacy)
{
var warehouse = await Context.Warehouses
.Where(w => w.Id == 1)
.Include(w => w.Products)
.FirstOrDefaultAsync();
var productsToOrder = new TransactionProductDTO
{
Amount = requiredAmount.Amount - productInPharmacy.Amount,
ProductBalanceId = warehouse.GetProductId(productInPharmacy.MedicamentId)
};
var orderDto = new CreateOrderDTO
{
WarehouseId = warehouse.Id,
Products = new List <TransactionProductDTO> {
productsToOrder
}
};
return(orderDto);
}
