public decimal GetOriginalPrice(ShoppingCartQuantityProduct productQuantity)
{
return(ProductPriceService.GetPrice(
productQuantity.Product,
ShoppingCart?.Country,
ShoppingCart?.ZipCode));
}
public ShoppingCartQuantityProduct Apply(ShoppingCartQuantityProduct quantityProduct, IEnumerable <ShoppingCartQuantityProduct> cartProducts)
{
if (DiscountPart == null)
{
return(quantityProduct);
}
var comment = DiscountPart.Comment; // TODO: tokenize this
var percent = DiscountPart.DiscountPercent;
if (percent != null)
{
return(new ShoppingCartQuantityProduct(quantityProduct.Quantity, quantityProduct.Product)
{
Comment = comment,
Price = Math.Round(quantityProduct.Price * (1 - ((double)percent / 100)), 2)
});
}
var discount = DiscountPart.Discount;
if (discount != null)
{
return(new ShoppingCartQuantityProduct(quantityProduct.Quantity, quantityProduct.Product)
{
Comment = comment,
Price = Math.Round(Math.Max(0, quantityProduct.Price - (double)discount), 2)
});
}
return(quantityProduct);
}
public ShoppingCartQuantityProduct GetDiscount(ShoppingCartQuantityProduct productQuantity,
IEnumerable <ShoppingCartQuantityProduct> shoppingCartQuantities = null)
{
var modifiedPrices = _priceProviders
.SelectMany(pp => pp.GetModifiedPrices(productQuantity, shoppingCartQuantities))
.ToList();
if (!modifiedPrices.Any())
{
return(productQuantity);
}
var result = new ShoppingCartQuantityProduct(productQuantity.Quantity, productQuantity.Product, productQuantity.AttributeIdsToValues);
var minPrice = modifiedPrices.Min(mp => mp.Price);
result.Price = minPrice;
var lowestPrice = modifiedPrices.FirstOrDefault(mp => Math.Abs(mp.Price - minPrice) < Epsilon);
if (lowestPrice != null)
{
result.Comment = lowestPrice.Comment;
result.Promotion = lowestPrice.Promotion;
}
result.OriginalPrice = productQuantity.Price;
return(result);
}
public decimal GetLinePriceAdjustement(ShoppingCartQuantityProduct productQuantity)
{
return(ProductPriceService.GetPrice(
productQuantity.Product,
productQuantity.LinePriceAdjustment,
ShoppingCart?.Country,
ShoppingCart?.ZipCode));
}
public bool Applies(ShoppingCartQuantityProduct quantityProduct, IEnumerable <ShoppingCartQuantityProduct> cartProducts)
{
if (DiscountPart == null)
{
return(false);
}
var now = _clock.UtcNow;
if (DiscountPart.StartDate != null && DiscountPart.StartDate > now)
{
return(false);
}
if (DiscountPart.EndDate != null && DiscountPart.EndDate < now)
{
return(false);
}
if (DiscountPart.StartQuantity != null &&
DiscountPart.StartQuantity > quantityProduct.Quantity)
{
return(false);
}
if (DiscountPart.EndQuantity != null &&
DiscountPart.EndQuantity < quantityProduct.Quantity)
{
return(false);
}
if (!string.IsNullOrWhiteSpace(DiscountPart.Pattern))
{
string path;
if (DiscountPart.DisplayUrlResolver != null)
{
path = DiscountPart.DisplayUrlResolver(quantityProduct.Product);
}
else
{
var urlHelper = new UrlHelper(_wca.GetContext().HttpContext.Request.RequestContext);
path = urlHelper.ItemDisplayUrl(quantityProduct.Product);
}
if (!path.StartsWith(DiscountPart.Pattern, StringComparison.OrdinalIgnoreCase))
{
return(false);
}
}
if (DiscountPart.Roles.Any())
{
var user = _wca.GetContext().CurrentUser;
if (user.Has <UserRolesPart>())
{
var roles = user.As <UserRolesPart>().Roles;
if (!roles.Any(r => DiscountPart.Roles.Contains(r)))
{
return(false);
}
}
}
return(true);
}
public ShoppingCartQuantityProduct GetTieredPrice(ShoppingCartQuantityProduct quantityProduct)
{
var priceTiers = GetPriceTiers(quantityProduct.Product);
var priceTier = priceTiers != null?priceTiers
.Where(t => t.Quantity <= quantityProduct.Quantity)
.OrderByDescending(t => t.Quantity).Take(1).SingleOrDefault() : null;
if (priceTier != null)
{
quantityProduct.Price = (double)priceTier.Price;
}
return(quantityProduct);
}
public IEnumerable <ShoppingCartQuantityProduct> GetModifiedPrices(
ShoppingCartQuantityProduct quantityProduct,
IEnumerable <ShoppingCartQuantityProduct> cartProducts)
{
if (quantityProduct.Product.DiscountPrice >= 0 &&
Math.Abs(quantityProduct.Product.Price - quantityProduct.Product.DiscountPrice) > Epsilon)
{
yield return(new ShoppingCartQuantityProduct(
quantityProduct.Quantity,
quantityProduct.Product,
quantityProduct.AttributeIdsToValues)
{
Price = quantityProduct.Product.DiscountPrice
});
}
}
public IEnumerable <ShoppingCartQuantityProduct> GetModifiedPrices(
ShoppingCartQuantityProduct quantityProduct,
IEnumerable <ShoppingCartQuantityProduct> cartProducts)
{
var discounts = GetPromotions().Cast <Discount>();
var cartProductList = cartProducts == null ? null : cartProducts.ToList();
foreach (var discount in discounts)
{
discount.DiscountPart.DisplayUrlResolver = DisplayUrlResolver;
// Does the discount apply?
if (!discount.Applies(quantityProduct, cartProductList))
{
continue;
}
// Discount applies
yield return(discount.Apply(quantityProduct, cartProductList));
}
}
public ShoppingCartQuantityProduct GetDiscountedPrice(
ShoppingCartQuantityProduct productQuantity,
IEnumerable <ShoppingCartQuantityProduct> shoppingCartQuantities = null)
{
// If tiered pricing is enabled, get the tiered price before applying discount
if (_tieredPriceProvider != null)
{
productQuantity = _tieredPriceProvider.GetTieredPrice(productQuantity);
}
var discountedProductQuantity = GetDiscount(productQuantity, shoppingCartQuantities);
// Adjust price based on attributes selected
if (discountedProductQuantity.AttributeIdsToValues != null)
{
foreach (var attr in discountedProductQuantity.AttributeIdsToValues)
{
var value = _attributeService.GetAttributes(new [] { attr.Key }).Single()
.AttributeValues.FirstOrDefault(v => v.Text.Trim() == attr.Value.Value.Trim());
if (value == null)
{
// If the attribute doesn't exist, remove the product
return(new ShoppingCartQuantityProduct(0, productQuantity.Product, productQuantity.AttributeIdsToValues));
}
// If the adjustment is to the line, specify, otherwise adjust the per unit price
if (value.IsLineAdjustment)
{
discountedProductQuantity.LinePriceAdjustment += value.PriceAdjustment;
}
else
{
discountedProductQuantity.Price += value.PriceAdjustment;
}
}
}
return(discountedProductQuantity);
}
public bool Applies(ShoppingCartQuantityProduct quantityProduct, IEnumerable <ShoppingCartQuantityProduct> cartProducts)
{
if (DiscountPart == null)
{
return(false);
}
var now = _clock.UtcNow;
if (DiscountPart.StartDate != null && DiscountPart.StartDate > now)
{
return(false);
}
if (DiscountPart.EndDate != null && DiscountPart.EndDate < now)
{
return(false);
}
if (DiscountPart.StartQuantity != null &&
DiscountPart.StartQuantity > quantityProduct.Quantity)
{
return(false);
}
if (DiscountPart.EndQuantity != null &&
DiscountPart.EndQuantity < quantityProduct.Quantity)
{
return(false);
}
if (!string.IsNullOrWhiteSpace(DiscountPart.Pattern) || !string.IsNullOrWhiteSpace(DiscountPart.ExclusionPattern))
{
string path = null;
if (DiscountPart.DisplayUrlResolver != null)
{
path = DiscountPart.DisplayUrlResolver(quantityProduct.Product);
}
else if (_wca.GetContext().HttpContext != null)
{
var urlHelper = new UrlHelper(_wca.GetContext().HttpContext.Request.RequestContext);
path = urlHelper.ItemDisplayUrl(quantityProduct.Product);
}
else
{
var autoroutePart = quantityProduct.Product.As <AutoroutePart>();
if (autoroutePart != null)
{
path = "/" + autoroutePart.Path; // Discount patterns have leading slash
}
}
if (path == null)
{
return(false);
}
if (!string.IsNullOrWhiteSpace(DiscountPart.Pattern))
{
var patternExpression = new Regex(DiscountPart.Pattern, RegexOptions.Singleline | RegexOptions.IgnoreCase);
if (!patternExpression.IsMatch(path))
{
return(false);
}
}
if (!string.IsNullOrWhiteSpace(DiscountPart.ExclusionPattern))
{
var exclusionPatternExpression = new Regex(DiscountPart.ExclusionPattern,
RegexOptions.Singleline | RegexOptions.IgnoreCase);
if (exclusionPatternExpression.IsMatch(path))
{
return(false);
}
}
}
if (DiscountPart.Roles.Any())
{
var user = _wca.GetContext().CurrentUser;
if (!user.Has <IUserRoles>())
{
return(false);
}
var roles = user.As <IUserRoles>().Roles;
if (!roles.Any(r => DiscountPart.Roles.Contains(r)))
{
return(false);
}
}
return(true);
}
