public DisplayProduct(DisplayProductNumber productNumber, Product product)
{
ProductNumber = productNumber ?? throw new InvalidOperationException(nameof(ProductNumber) + " is required.");;
Product = product;
DisplayPrice = product.Price;
SalableStock = ProductStockQuantity.EmptyQuantity();
}
public DisplayProduct FindWithValidation(DisplayProductNumber displayProductNumber)
{
var displayProduct = Find(displayProductNumber);
if (displayProduct == null)
{
throw new InvalidOperationException("DisplayProduct is not exists.");
}
return(displayProduct);
}
public SalesStatus GetSalesStatus(DisplayProductNumber displayProductNumber)
{
var displayProduct = _displayProducts.FindWithValidation(displayProductNumber);
if (displayProduct.SoldOut)
{
return(SalesStatus.SoldOut);
}
if (_deposit.CanPurches(displayProduct.DisplayPrice))
{
return(SalesStatus.Salable);
}
return(SalesStatus.Unsalable);
}
public Product Purchase(DisplayProductNumber displayProductNumber)
{
var displayProduct = _displayProducts.FindWithValidation(displayProductNumber);
if (displayProduct.SoldOut)
{
return(null);
}
if (!_deposit.CanPurches(displayProduct.DisplayPrice))
{
return(null);
}
_deposit.StorePurchesdAmount(displayProduct.DisplayPrice);
return(displayProduct.Purchase());
}
public void RestockProduct(DisplayProductNumber displayProductNumber, ProductStockQuantity salableStock)
{
var displayProduct = _displayProducts.FindWithValidation(displayProductNumber);
displayProduct.Restock(salableStock);
}
public DisplayProduct Find(DisplayProductNumber displayProductNumber)
{
_displayProducts.TryGetValue(displayProductNumber, out var displayProduct);
return(displayProduct);
}
public void RestockProduct(DisplayProductNumber displayProductNumber, ProductStockQuantity salableStock)
{
_displayProducts.Restock(displayProductNumber, salableStock);
}
public DisplayProduct(DisplayProductNumber productNumber, Price displayPrice, Product product)
: this(productNumber, product)
{
DisplayPrice = displayPrice;
}