private static Result<Quantity, Error<QuantityError>> GetError(
ParseSettings parseSettings,
QuantityError quantityError,
Lexemes lexemes)
{
var error = Error.From(quantityError, lexemes.Current);
if (parseSettings.ThrowOnError)
{
throw new QuantityParseException(error);
}
return Result.Error(error);
}
private static Result <Quantity, Error <QuantityError> > GetError(
ParseSettings parseSettings,
QuantityError quantityError,
Lexemes lexemes)
{
var error = Error.From(quantityError, lexemes.Current);
if (parseSettings.ThrowOnError)
{
throw new QuantityParseException(error);
}
return(Result.Error(error));
}
public CartLineItemValidator(ShoppingCart cart)
{
RuleSet("strict", () =>
{
RuleFor(x => x).Custom((lineItem, context) =>
{
lineItem.ValidationErrors.Clear();
if (lineItem.Product == null || !lineItem.Product.IsActive || !lineItem.Product.IsBuyable)
{
var unavailableError = new UnavailableError();
lineItem.ValidationErrors.Add(unavailableError);
context.AddFailure(new ValidationFailure(nameof(lineItem.Product), "The product is not longer available for purchase"));
}
else if (lineItem.Product.Price == null || lineItem.Product.Price.GetTierPrice(lineItem.Quantity).Price == 0)
{
var unavailableError = new UnavailableError();
lineItem.ValidationErrors.Add(unavailableError);
}
else
{
var isProductAvailable = new ProductIsAvailableSpecification(lineItem.Product).IsSatisfiedBy(lineItem.Quantity);
if (!isProductAvailable)
{
var availableQuantity = lineItem.Product.AvailableQuantity;
var qtyError = new QuantityError(availableQuantity);
lineItem.ValidationErrors.Add(qtyError);
context.AddFailure(new ValidationFailure(nameof(lineItem.Product.AvailableQuantity), "The product available qty is changed"));
}
var tierPrice = lineItem.Product.Price.GetTierPrice(lineItem.Quantity);
if (tierPrice.Price != lineItem.SalePrice)
{
var priceError = new PriceError(lineItem.SalePrice, lineItem.SalePriceWithTax, tierPrice.Price, tierPrice.PriceWithTax);
lineItem.ValidationErrors.Add(priceError);
context.AddFailure(new ValidationFailure(nameof(lineItem.SalePrice), "The product price is changed"));
}
}
});
});
}
