protected POSOrderItem(string productUniqueCode, int quantity, POSOrderItem item)
{
ProductUniqueCode = productUniqueCode;
CustomerValue = item.CustomerValue;
CostPrice = item.CostPrice;
POSOrderId = item.POSOrderId;
Quantity = quantity;
}
public virtual POSOrderItem Sum(POSOrderItem rhs)
{
if (this.ProductUniqueCode != rhs.ProductUniqueCode)
{
return(rhs);
}
var item = new POSOrderItem(this.ProductUniqueCode, this.Quantity + rhs.Quantity, this);
return(item);
}
public virtual void AddItem(int productId, int quantity, IRepository <Product> repository)
{
var item = POSOrderItem.Create(productId, quantity, this, repository);
if (!item.Success)
{
return;
}
AddItem(item.Value);
}
public static BaseResult <POSOrderItem> Create(int productId, int quantity, POSOrder posOrder, IRepository <Product> productRepository)
{
var product = productRepository.GetBy(productId);
if (product.QuantityInStock == 0)
{
return(BaseResult <POSOrderItem> .Failed(new [] { $"can't create item.Product of id {product.Id} is out of stock" }, null));
}
if ((product.QuantityInStock - quantity) < 0)
{
return(BaseResult <POSOrderItem> .Succeed("Order Item is defined", new POSOrderItem(product, posOrder, product.QuantityInStock)));
}
var item = new POSOrderItem(product, posOrder, quantity);
return(BaseResult <POSOrderItem> .Succeed("Order Item is defined", item));
}
public virtual void AddItem(POSOrderItem item)
{
if (this.State == OrderState.Cancelled)
{
return;
}
var existingItem = Items.Where(i => i.Id == item.Id).FirstOrDefault();
if (existingItem is null)
{
Items.Add(item);
this.RemainingValueToPay += item.Quantity * item.CustomerValue;
return;
}
var newItem = existingItem.Sum(item);
this.Items.Remove(existingItem);
this.Items.Add(newItem);
this.RemainingValueToPay += item.Quantity * item.CustomerValue;
}