public void ApplyDiscountCode(Order order, string code)
{
var discountCode = _discountCodeQueryService.FindByCode(code);
var applier = new DiscountCodeApplier(discountCode);
AddAdjustment(order, applier.DiscountAdjustment(order.Total));
OrderCalculator.Calculate(order);
_orderRepository.Update(order);
}
public DiscountCodeValidationResult Validate(string code, int[] variantIds)
{
var discountCode = _discountCodeQueryService.FindByCode(code);
if (discountCode == null)
{
return(Invalid("Invalid discount code."));
}
if (discountCode.IsGlobal)
{
return(Valid());
}
if (variantIds == null)
{
return(Invalid("Sorry, this discount code is not available or is expired."));
}
if (discountCode.ProductVariants != null && discountCode.ProductVariants.Any())
{
return(discountCode.ProductVariants.Select(v => v.Id).Intersect(variantIds).Any()
? Valid()
: NotApplicable());
}
var orderVariants =
variantIds.Select(id => _productVariantRepo.Find(id)).Where(v => v != null);
if (discountCode.Products != null && discountCode.Products.Any())
{
var productIds = orderVariants.Select(v => v.ProductId);
return(discountCode.Products.Select(p => p.Id).Intersect(productIds).Any()
? Valid()
: NotApplicable());
}
if (discountCode.Tours != null && discountCode.Tours.Any())
{
var tourIds = orderVariants.Select(v => v.Product.Departure.TourId);
return(discountCode.Tours.Select(t => t.Id).Intersect(tourIds).Any()
? Valid()
: NotApplicable());
}
return(Invalid("Invalid discount code."));
}