/// <summary>
/// Gets the shopping cart unit price (one item)
/// </summary>
/// <param name="product">Product</param>
/// <param name="customer">Customer</param>
/// <param name="shoppingCartType">Shopping cart type</param>
/// <param name="quantity">Quantity</param>
/// <param name="attributesXml">Product atrributes (XML format)</param>
/// <param name="customerEnteredPrice">Customer entered price (if specified)</param>
/// <param name="rentalStartDate">Rental start date (null for not rental products)</param>
/// <param name="rentalEndDate">Rental end date (null for not rental products)</param>
/// <param name="includeDiscounts">A value indicating whether include discounts or not for price computation</param>
/// <param name="discountAmount">Applied discount amount</param>
/// <param name="appliedDiscount">Applied discount</param>
/// <returns>Shopping cart unit price (one item)</returns>
public virtual decimal GetUnitPrice(Product product,
Customer customer,
ShoppingCartType shoppingCartType,
int quantity,
string attributesXml,
decimal customerEnteredPrice,
DateTime?rentalStartDate, DateTime?rentalEndDate,
bool includeDiscounts,
out decimal discountAmount,
out List <AppliedDiscount> appliedDiscounts)
{
if (product == null)
{
throw new ArgumentNullException("product");
}
if (customer == null)
{
throw new ArgumentNullException("customer");
}
discountAmount = decimal.Zero;
appliedDiscounts = new List <AppliedDiscount>();
decimal?finalPrice = null;
if (shoppingCartType == ShoppingCartType.Auctions && product.ProductType == ProductType.Auction)
{
finalPrice = customerEnteredPrice;
}
if (!finalPrice.HasValue)
{
var combination = _productAttributeParser.FindProductAttributeCombination(product, attributesXml);
if (combination != null)
{
if (combination.OverriddenPrice.HasValue)
{
finalPrice = combination.OverriddenPrice.Value;
}
if (combination.TierPrices.Any())
{
var storeId = _storeContext.CurrentStore.Id;
var actualTierPrices = combination.TierPrices.Where(x => string.IsNullOrEmpty(x.StoreId) || x.StoreId == storeId)
.Where(x => string.IsNullOrEmpty(x.CustomerRoleId) ||
customer.CustomerRoles.Where(role => role.Active).Select(role => role.Id).Contains(x.CustomerRoleId)).ToList();
var tierPrice = actualTierPrices.LastOrDefault(price => quantity >= price.Quantity);
if (tierPrice != null)
{
finalPrice = tierPrice.Price;
}
}
}
}
if (!finalPrice.HasValue)
{
//summarize price of all attributes
decimal attributesTotalPrice = decimal.Zero;
var attributeValues = _productAttributeParser.ParseProductAttributeValues(product, attributesXml);
if (attributeValues != null)
{
foreach (var attributeValue in attributeValues)
{
attributesTotalPrice += GetProductAttributeValuePriceAdjustment(attributeValue);
}
}
//get price of a product (with previously calculated price of all attributes)
if (product.CustomerEntersPrice)
{
finalPrice = customerEnteredPrice;
}
else
{
int qty;
if (_shoppingCartSettings.GroupTierPricesForDistinctShoppingCartItems)
{
//the same products with distinct product attributes could be stored as distinct "ShoppingCartItem" records
//so let's find how many of the current products are in the cart
qty = customer.ShoppingCartItems
.Where(x => x.ProductId == product.Id)
.Where(x => x.ShoppingCartType == shoppingCartType)
.Sum(x => x.Quantity);
if (qty == 0)
{
qty = quantity;
}
}
else
{
qty = quantity;
}
finalPrice = GetFinalPrice(product,
customer,
attributesTotalPrice,
includeDiscounts,
qty,
product.ProductType == ProductType.Reservation ? rentalStartDate : null,
product.ProductType == ProductType.Reservation ? rentalEndDate : null,
out discountAmount, out appliedDiscounts);
}
}
if (!finalPrice.HasValue)
{
finalPrice = 0;
}
//rounding
if (_shoppingCartSettings.RoundPricesDuringCalculation)
{
var primaryCurrency = _currencyService.GetCurrencyById(_currencySettings.PrimaryExchangeRateCurrencyId);
finalPrice = RoundingHelper.RoundPrice(finalPrice.Value, primaryCurrency);
}
return(finalPrice.Value);
}
/// <summary>
/// Gets the shopping cart unit price (one item)
/// </summary>
/// <param name="product">Product</param>
/// <param name="customer">Customer</param>
/// <param name="shoppingCartType">Shopping cart type</param>
/// <param name="quantity">Quantity</param>
/// <param name="attributesXml">Product atrributes (XML format)</param>
/// <param name="customerEnteredPrice">Customer entered price (if specified)</param>
/// <param name="rentalStartDate">Rental start date (null for not rental products)</param>
/// <param name="rentalEndDate">Rental end date (null for not rental products)</param>
/// <param name="includeDiscounts">A value indicating whether include discounts or not for price computation</param>
/// <param name="discountAmount">Applied discount amount</param>
/// <param name="appliedDiscount">Applied discount</param>
/// <returns>Shopping cart unit price (one item)</returns>
public virtual decimal GetUnitPrice(Product product,
Customer customer,
ShoppingCartType shoppingCartType,
int quantity,
string attributesXml,
decimal customerEnteredPrice,
DateTime?rentalStartDate, DateTime?rentalEndDate,
bool includeDiscounts,
out decimal discountAmount,
out List <Discount> appliedDiscounts)
{
if (product == null)
{
throw new ArgumentNullException("product");
}
if (customer == null)
{
throw new ArgumentNullException("customer");
}
discountAmount = decimal.Zero;
appliedDiscounts = new List <Discount>();
decimal finalPrice;
var combination = _productAttributeParser.FindProductAttributeCombination(product, attributesXml);
if (combination != null && combination.OverriddenPrice.HasValue)
{
finalPrice = combination.OverriddenPrice.Value;
}
else
{
//summarize price of all attributes
decimal attributesTotalPrice = decimal.Zero;
var attributeValues = _productAttributeParser.ParseProductAttributeValues(product, attributesXml);
if (attributeValues != null)
{
foreach (var attributeValue in attributeValues)
{
attributesTotalPrice += GetProductAttributeValuePriceAdjustment(attributeValue);
}
}
//get price of a product (with previously calculated price of all attributes)
if (product.CustomerEntersPrice)
{
finalPrice = customerEnteredPrice;
}
else
{
int qty;
if (_shoppingCartSettings.GroupTierPricesForDistinctShoppingCartItems)
{
//the same products with distinct product attributes could be stored as distinct "ShoppingCartItem" records
//so let's find how many of the current products are in the cart
qty = customer.ShoppingCartItems
.Where(x => x.ProductId == product.Id)
.Where(x => x.ShoppingCartType == shoppingCartType)
.Sum(x => x.Quantity);
if (qty == 0)
{
qty = quantity;
}
}
else
{
qty = quantity;
}
finalPrice = GetFinalPrice(product,
customer,
attributesTotalPrice,
includeDiscounts,
qty,
product.IsRental ? rentalStartDate : null,
product.IsRental ? rentalEndDate : null,
out discountAmount, out appliedDiscounts);
}
}
//rounding
if (_shoppingCartSettings.RoundPricesDuringCalculation)
{
finalPrice = RoundingHelper.RoundPrice(finalPrice);
}
return(finalPrice);
}
/// <summary>
/// Gets the final price
/// </summary>
/// <param name="product">Product</param>
/// <param name="customer">The customer</param>
/// <param name="additionalCharge">Additional charge</param>
/// <param name="includeDiscounts">A value indicating whether include discounts or not for final price computation</param>
/// <param name="quantity">Shopping cart item quantity</param>
/// <param name="rentalStartDate">Rental period start date (for rental products)</param>
/// <param name="rentalEndDate">Rental period end date (for rental products)</param>
/// <param name="discountAmount">Applied discount amount</param>
/// <param name="appliedDiscount">Applied discount</param>
/// <returns>Final price</returns>
public virtual decimal GetFinalPrice(Product product,
Customer customer,
decimal additionalCharge,
bool includeDiscounts,
int quantity,
DateTime?rentalStartDate,
DateTime?rentalEndDate,
out decimal discountAmount,
out List <AppliedDiscount> appliedDiscounts)
{
if (product == null)
{
throw new ArgumentNullException("product");
}
discountAmount = decimal.Zero;
appliedDiscounts = new List <AppliedDiscount>();
var cacheKey = string.Format(PriceCacheEventConsumer.PRODUCT_PRICE_MODEL_KEY,
product.Id,
additionalCharge.ToString(CultureInfo.InvariantCulture),
includeDiscounts,
quantity,
string.Join(",", customer.GetCustomerRoleIds()),
_storeContext.CurrentStore.Id);
var cacheTime = _catalogSettings.CacheProductPrices ? 60 : 0;
//we do not cache price for reservation products
//otherwise, it can cause memory leaks (to store all possible date period combinations)
if (product.ProductType == ProductType.Reservation)
{
cacheTime = 0;
}
ProductPriceForCaching PrepareModel()
{
var result = new ProductPriceForCaching();
//initial price
decimal price = product.Price;
//customer product price
var customerPrice = _customerService.GetPriceByCustomerProduct(customer.Id, product.Id);
if (customerPrice.HasValue && customerPrice.Value < price)
{
price = customerPrice.Value;
}
//tier prices
var tierPrice = product.GetPreferredTierPrice(customer, _storeContext.CurrentStore.Id, quantity);
if (tierPrice != null)
{
price = tierPrice.Price;
}
//additional charge
price = price + additionalCharge;
//reservations
if (product.ProductType == ProductType.Reservation)
{
if (rentalStartDate.HasValue && rentalEndDate.HasValue)
{
decimal d = 0;
if (product.IncBothDate)
{
decimal.TryParse(((rentalEndDate - rentalStartDate).Value.TotalDays + 1).ToString(), out d);
}
else
{
decimal.TryParse((rentalEndDate - rentalStartDate).Value.TotalDays.ToString(), out d);
}
price = price * d;
}
}
if (includeDiscounts)
{
//discount
List <AppliedDiscount> tmpAppliedDiscounts;
decimal tmpDiscountAmount = GetDiscountAmount(product, customer, price, out tmpAppliedDiscounts);
price = price - tmpDiscountAmount;
if (tmpAppliedDiscounts != null)
{
result.AppliedDiscountIds = tmpAppliedDiscounts.Select(x => x.DiscountId).ToList();
result.AppliedDiscountAmount = tmpDiscountAmount;
}
}
if (price < decimal.Zero)
{
price = decimal.Zero;
}
//rounding
if (_shoppingCartSettings.RoundPricesDuringCalculation)
{
var primaryCurrency = _currencyService.GetCurrencyById(_currencySettings.PrimaryExchangeRateCurrencyId);
result.Price = RoundingHelper.RoundPrice(price, primaryCurrency);
}
else
{
result.Price = price;
}
return(result);
}
var cachedPrice = cacheTime > 0 ? _cacheManager.Get(cacheKey, cacheTime, () => { return(PrepareModel()); }) : PrepareModel();
if (includeDiscounts)
{
foreach (var appliedDiscountId in cachedPrice.AppliedDiscountIds)
{
var appliedDiscount = _discountService.GetDiscountById(appliedDiscountId);
if (appliedDiscount != null)
{
appliedDiscounts.Add(new AppliedDiscount()
{
DiscountId = appliedDiscount.Id, IsCumulative = appliedDiscount.IsCumulative
});
}
}
if (appliedDiscounts.Any())
{
discountAmount = cachedPrice.AppliedDiscountAmount;
}
}
return(cachedPrice.Price);
}
/// <summary>
/// Gets the final price
/// </summary>
/// <param name="product">Product</param>
/// <param name="customer">The customer</param>
/// <param name="additionalCharge">Additional charge</param>
/// <param name="includeDiscounts">A value indicating whether include discounts or not for final price computation</param>
/// <param name="quantity">Shopping cart item quantity</param>
/// <param name="rentalStartDate">Rental period start date (for rental products)</param>
/// <param name="rentalEndDate">Rental period end date (for rental products)</param>
/// <param name="discountAmount">Applied discount amount</param>
/// <param name="appliedDiscount">Applied discount</param>
/// <returns>Final price</returns>
public virtual async Task <(decimal finalPrice, decimal discountAmount, List <AppliedDiscount> appliedDiscounts, TierPrice preferredTierPrice)> GetFinalPrice(Product product,
Customer customer,
decimal additionalCharge,
bool includeDiscounts,
int quantity,
DateTime?rentalStartDate,
DateTime?rentalEndDate)
{
if (product == null)
{
throw new ArgumentNullException("product");
}
var discountAmount = decimal.Zero;
var appliedDiscounts = new List <AppliedDiscount>();
async Task <ProductPriceForCaching> PrepareModel()
{
var result = new ProductPriceForCaching();
//initial price
decimal price = product.Price;
//tier prices
var tierPrice = product.GetPreferredTierPrice(customer, _storeContext.CurrentStore.Id, quantity);
if (tierPrice != null)
{
price = tierPrice.Price;
result.PreferredTierPrice = tierPrice;
}
//customer product price
if (_catalogSettings.CustomerProductPrice)
{
var customerPrice = await _customerService.GetPriceByCustomerProduct(customer.Id, product.Id);
if (customerPrice.HasValue && customerPrice.Value < price)
{
price = customerPrice.Value;
}
}
//additional charge
price = price + additionalCharge;
//reservations
if (product.ProductType == ProductType.Reservation)
{
if (rentalStartDate.HasValue && rentalEndDate.HasValue)
{
decimal d = 0;
if (product.IncBothDate)
{
decimal.TryParse(((rentalEndDate - rentalStartDate).Value.TotalDays + 1).ToString(), out d);
}
else
{
decimal.TryParse((rentalEndDate - rentalStartDate).Value.TotalDays.ToString(), out d);
}
price = price * d;
}
}
if (includeDiscounts)
{
//discount
var discountamount = await GetDiscountAmount(product, customer, price);
decimal tmpDiscountAmount = discountamount.discountAmount;
List <AppliedDiscount> tmpAppliedDiscounts = discountamount.appliedDiscounts;
price = price - tmpDiscountAmount;
if (tmpAppliedDiscounts != null)
{
result.AppliedDiscounts = tmpAppliedDiscounts.ToList();
result.AppliedDiscountAmount = tmpDiscountAmount;
}
}
if (price < decimal.Zero)
{
price = decimal.Zero;
}
//rounding
if (_shoppingCartSettings.RoundPricesDuringCalculation)
{
var primaryCurrency = await _currencyService.GetPrimaryExchangeRateCurrency();
result.Price = RoundingHelper.RoundPrice(price, primaryCurrency);
}
else
{
result.Price = price;
}
return(result);
}
var modelprice = await PrepareModel();
if (includeDiscounts)
{
appliedDiscounts = modelprice.AppliedDiscounts.ToList();
if (appliedDiscounts.Any())
{
discountAmount = modelprice.AppliedDiscountAmount;
}
}
return(modelprice.Price, discountAmount, appliedDiscounts, modelprice.PreferredTierPrice);
}
