private static Discount DBMapping(DBDiscount dbItem)
{
if (dbItem == null)
return null;
Discount item = new Discount();
item.DiscountID = dbItem.DiscountID;
item.DiscountTypeID = dbItem.DiscountTypeID;
item.DiscountRequirementID = dbItem.DiscountRequirementID;
item.Name = dbItem.Name;
item.UsePercentage = dbItem.UsePercentage;
item.DiscountPercentage = dbItem.DiscountPercentage;
item.DiscountAmount = dbItem.DiscountAmount;
item.StartDate = dbItem.StartDate;
item.EndDate = dbItem.EndDate;
item.RequiresCouponCode = dbItem.RequiresCouponCode;
item.CouponCode = dbItem.CouponCode;
item.Deleted = dbItem.Deleted;
return item;
}
/// <summary>
/// Gets shopping cart subtotal
/// </summary>
/// <param name="cart">Cart</param>
/// <param name="customer">Customer</param>
/// <param name="includingTax">A value indicating whether calculated price should include tax</param>
/// <param name="discountAmount">Applied discount amount</param>
/// <param name="appliedDiscount">Applied discount</param>
/// <param name="subTotalWithoutDiscount">Sub total (without discount)</param>
/// <param name="subTotalWithDiscount">Sub total (with discount)</param>
/// <returns>Error</returns>
public string GetShoppingCartSubTotal(ShoppingCart cart,
Customer customer, bool includingTax,
out decimal discountAmount, out Discount appliedDiscount,
out decimal subTotalWithoutDiscount, out decimal subTotalWithDiscount)
{
SortedDictionary<decimal, decimal> taxRates = null;
return GetShoppingCartSubTotal(cart,
customer, includingTax, out discountAmount, out appliedDiscount,
out subTotalWithoutDiscount, out subTotalWithDiscount, out taxRates);
}
/// <summary>
/// Gets shopping cart subtotal
/// </summary>
/// <param name="cart">Cart</param>
/// <param name="customer">Customer</param>
/// <param name="includingTax">A value indicating whether calculated price should include tax</param>
/// <param name="discountAmount">Applied discount amount</param>
/// <param name="appliedDiscount">Applied discount</param>
/// <param name="subTotalWithoutDiscount">Sub total (without discount)</param>
/// <param name="subTotalWithDiscount">Sub total (with discount)</param>
/// <param name="taxRates">Tax rates (of order sub total)</param>
/// <returns>Error</returns>
public string GetShoppingCartSubTotal(ShoppingCart cart,
Customer customer, bool includingTax,
out decimal discountAmount, out Discount appliedDiscount,
out decimal subTotalWithoutDiscount, out decimal subTotalWithDiscount,
out SortedDictionary<decimal, decimal> taxRates)
{
discountAmount = decimal.Zero;
appliedDiscount = null;
subTotalWithoutDiscount = decimal.Zero;
subTotalWithDiscount = decimal.Zero;
taxRates = new SortedDictionary<decimal, decimal>();
string error = string.Empty;
//sub totals
decimal subTotalExclTaxWithoutDiscount = decimal.Zero;
decimal subTotalInclTaxWithoutDiscount = decimal.Zero;
foreach (var shoppingCartItem in cart)
{
decimal taxRate = decimal.Zero;
string error2 = string.Empty;
decimal sciSubTotal = PriceHelper.GetSubTotal(shoppingCartItem, customer, true);
decimal sciExclTax = IoC.Resolve<ITaxService>().GetPrice(shoppingCartItem.ProductVariant, sciSubTotal, false, customer, out taxRate, ref error2);
decimal sciInclTax = IoC.Resolve<ITaxService>().GetPrice(shoppingCartItem.ProductVariant, sciSubTotal, true, customer, out taxRate, ref error2);
subTotalExclTaxWithoutDiscount += sciExclTax;
subTotalInclTaxWithoutDiscount += sciInclTax;
if (!String.IsNullOrEmpty(error2))
{
error = error2;
}
//tax rates
decimal sciTax = sciInclTax - sciExclTax;
if (taxRate > decimal.Zero && sciTax > decimal.Zero)
{
if (!taxRates.ContainsKey(taxRate))
{
taxRates.Add(taxRate, sciTax);
}
else
{
taxRates[taxRate] = taxRates[taxRate] + sciTax;
}
}
}
//checkout attributes
if (customer != null)
{
var caValues = CheckoutAttributeHelper.ParseCheckoutAttributeValues(customer.CheckoutAttributes);
foreach (var caValue in caValues)
{
decimal taxRate = decimal.Zero;
string error2 = string.Empty;
decimal caExclTax= IoC.Resolve<ITaxService>().GetCheckoutAttributePrice(caValue, false, customer, out taxRate, ref error2);
decimal caInclTax = IoC.Resolve<ITaxService>().GetCheckoutAttributePrice(caValue, true, customer, out taxRate, ref error2);
subTotalExclTaxWithoutDiscount += caExclTax;
subTotalInclTaxWithoutDiscount += caInclTax;
if (!String.IsNullOrEmpty(error2))
{
error = error2;
}
//tax rates
decimal caTax = caInclTax - caExclTax;
if (taxRate > decimal.Zero && caTax > decimal.Zero)
{
if (!taxRates.ContainsKey(taxRate))
{
taxRates.Add(taxRate, caTax);
}
else
{
taxRates[taxRate] = taxRates[taxRate] + caTax;
}
}
}
}
//subtotal without discount
if (includingTax)
subTotalWithoutDiscount = subTotalInclTaxWithoutDiscount;
else
subTotalWithoutDiscount = subTotalExclTaxWithoutDiscount;
if (subTotalWithoutDiscount < decimal.Zero)
subTotalWithoutDiscount = decimal.Zero;
subTotalWithoutDiscount = Math.Round(subTotalWithoutDiscount, 2);
/*We calculate discount amount on order subtotal excl tax (discount first)*/
//calculate discount amount ('Applied to order subtotal' discount)
decimal discountAmountExclTax = GetOrderSubtotalDiscount(customer, subTotalExclTaxWithoutDiscount, out appliedDiscount);
if (subTotalExclTaxWithoutDiscount < discountAmountExclTax)
discountAmountExclTax = subTotalExclTaxWithoutDiscount;
decimal discountAmountInclTax = discountAmountExclTax;
//subtotal with discount (excl tax)
decimal subTotalExclTaxWithDiscount = subTotalExclTaxWithoutDiscount - discountAmountExclTax;
decimal subTotalInclTaxWithDiscount = subTotalExclTaxWithDiscount;
//add tax for shopping items & checkout attributes
Dictionary<decimal, decimal> tempTaxRates = new Dictionary<decimal, decimal>(taxRates);
foreach (KeyValuePair<decimal, decimal> kvp in tempTaxRates)
{
decimal taxRate = kvp.Key;
decimal taxValue = kvp.Value;
if (taxValue != decimal.Zero)
{
//discount the tax amount that applies to subtotal items
if (subTotalExclTaxWithoutDiscount > decimal.Zero)
{
decimal discountTax = taxRates[taxRate] * (discountAmountExclTax / subTotalExclTaxWithoutDiscount);
discountAmountInclTax += discountTax;
taxValue = taxRates[taxRate] - discountTax;
taxValue = Math.Round(taxValue, 2);
taxRates[taxRate] = taxValue;
}
//subtotal with discount (incl tax)
subTotalInclTaxWithDiscount += taxValue;
}
}
discountAmountInclTax = Math.Round(discountAmountInclTax, 2);
if (includingTax)
{
subTotalWithDiscount = subTotalInclTaxWithDiscount;
discountAmount = discountAmountInclTax;
}
else
{
subTotalWithDiscount = subTotalExclTaxWithDiscount;
discountAmount = discountAmountExclTax;
}
//round
if (subTotalWithDiscount < decimal.Zero)
subTotalWithDiscount = decimal.Zero;
subTotalWithDiscount = Math.Round(subTotalWithDiscount, 2);
return error;
}
/// <summary>
/// Gets an order discount (applied to order total)
/// </summary>
/// <param name="customer">Customer</param>
/// <param name="orderTotal">Order total</param>
/// <param name="appliedDiscount">Applied discount</param>
/// <returns>Order discount</returns>
public decimal GetOrderTotalDiscount(Customer customer,
decimal orderTotal, out Discount appliedDiscount)
{
decimal discountAmount = decimal.Zero;
string customerCouponCode = string.Empty;
if (customer != null)
customerCouponCode = customer.LastAppliedCouponCode;
var allDiscounts = IoC.Resolve<IDiscountService>().GetAllDiscounts(DiscountTypeEnum.AssignedToOrderTotal);
var allowedDiscounts = new List<Discount>();
foreach (var discount in allDiscounts)
{
if (discount.IsActive(customerCouponCode) &&
discount.DiscountType == DiscountTypeEnum.AssignedToOrderTotal &&
!allowedDiscounts.ContainsDiscount(discount.Name))
{
//discount requirements
if (discount.CheckDiscountRequirements(customer)
&& discount.CheckDiscountLimitations(customer))
{
allowedDiscounts.Add(discount);
}
}
}
appliedDiscount = IoC.Resolve<IDiscountService>().GetPreferredDiscount(allowedDiscounts, orderTotal);
if (appliedDiscount != null)
{
discountAmount = appliedDiscount.GetDiscountAmount(orderTotal);
}
if (discountAmount < decimal.Zero)
discountAmount = decimal.Zero;
discountAmount = Math.Round(discountAmount, 2);
return discountAmount;
}
/// <summary>
/// Gets shopping cart subtotal
/// </summary>
/// <param name="cart">Cart</param>
/// <param name="customer">Customer</param>
/// <param name="discountAmount">Applied discount amount</param>
/// <param name="appliedDiscount">Applied discount</param>
/// <param name="subTotalWithoutDiscount">Sub total (without discount)</param>
/// <param name="subTotalWithDiscount">Sub total (with discount)</param>
/// <returns>Error</returns>
public string GetShoppingCartSubTotal(ShoppingCart cart,
Customer customer, out decimal discountAmount, out Discount appliedDiscount,
out decimal subTotalWithoutDiscount, out decimal subTotalWithDiscount)
{
bool includingTax = false;
switch (NopContext.Current.TaxDisplayType)
{
case TaxDisplayTypeEnum.ExcludingTax:
includingTax = false;
break;
case TaxDisplayTypeEnum.IncludingTax:
includingTax = true;
break;
}
return GetShoppingCartSubTotal(cart, customer, includingTax,
out discountAmount, out appliedDiscount,
out subTotalWithoutDiscount, out subTotalWithDiscount);
}
public Discount SaveInfo()
{
//discou tn type
DiscountTypeEnum discountType = (DiscountTypeEnum)int.Parse(this.ddlDiscountType.SelectedItem.Value);
//requirements
DiscountRequirementEnum discountRequirement = (DiscountRequirementEnum)int.Parse(this.ddlDiscountRequirement.SelectedItem.Value);
int[] restrictedProductVariantIds = new int[0];
if (discountRequirement == DiscountRequirementEnum.HasAllOfTheseProductVariantsInTheCart ||
discountRequirement == DiscountRequirementEnum.HasOneOfTheseProductVariantsInTheCart||
discountRequirement == DiscountRequirementEnum.HadPurchasedAllOfTheseProductVariants ||
discountRequirement == DiscountRequirementEnum.HadPurchasedOneOfTheseProductVariants)
restrictedProductVariantIds = ParseListOfRestrictedProductVariants(txtRestrictedProductVariants.Text);
decimal requirementSpentAmount = txtRequirementSpentAmount.Value;
int requirementBillingCountryIs= int.Parse(this.ddlRequirementBillingCountryIs.SelectedItem.Value);
int requirementShippingCountryIs = int.Parse(this.ddlRequirementShippingCountryIs.SelectedItem.Value);
//limitation
DiscountLimitationEnum discountLimitation = (DiscountLimitationEnum)int.Parse(this.ddlDiscountLimitation.SelectedItem.Value);
int limitationTimes = txtLimitationTimes.Value;
string name = txtName.Text.Trim();
bool usePercentage= cbUsePercentage.Checked;
decimal discountPercentage = txtDiscountPercentage.Value;
decimal discountAmount = txtDiscountAmount.Value;
bool requiresCouponCode = cbRequiresCouponCode.Checked;
string couponCode = txtCouponCode.Text.Trim();
//dates
if(!ctrlStartDatePicker.SelectedDate.HasValue)
{
throw new NopException("Start date is not set");
}
DateTime discountStartDate = ctrlStartDatePicker.SelectedDate.Value;
if(!ctrlEndDatePicker.SelectedDate.HasValue)
{
throw new NopException("End date is not set");
}
DateTime discountEndDate = ctrlEndDatePicker.SelectedDate.Value;
discountStartDate = DateTime.SpecifyKind(discountStartDate, DateTimeKind.Utc);
discountEndDate = DateTime.SpecifyKind(discountEndDate, DateTimeKind.Utc);
if (discountStartDate.CompareTo(discountEndDate) >= 0)
throw new NopException("Start date should be less then expiration date");
if (requiresCouponCode && String.IsNullOrEmpty(couponCode))
{
throw new NopException("Discount requires coupon code. Coupon code could not be empty.");
}
Discount discount = this.DiscountService.GetDiscountById(this.DiscountId);
if (discount != null)
{
discount.DiscountTypeId = (int)discountType;
discount.DiscountRequirementId = (int)discountRequirement;
discount.RequirementSpentAmount = requirementSpentAmount;
discount.RequirementBillingCountryIs = requirementBillingCountryIs;
discount.RequirementShippingCountryIs = requirementShippingCountryIs;
discount.DiscountLimitationId = (int)discountLimitation;
discount.LimitationTimes = limitationTimes;
discount.Name = name;
discount.UsePercentage = usePercentage;
discount.DiscountPercentage = discountPercentage;
discount.DiscountAmount = discountAmount;
discount.StartDate = discountStartDate;
discount.EndDate = discountEndDate;
discount.RequiresCouponCode = requiresCouponCode;
discount.CouponCode = couponCode;
this.DiscountService.UpdateDiscount(discount);
//discount requirements
foreach (CustomerRole customerRole in discount.CustomerRoles)
this.CustomerService.RemoveDiscountFromCustomerRole(customerRole.CustomerRoleId, discount.DiscountId);
foreach (int customerRoleId in CustomerRoleMappingControl.SelectedCustomerRoleIds)
this.CustomerService.AddDiscountToCustomerRole(customerRoleId, discount.DiscountId);
foreach (ProductVariant pv in this.ProductService.GetProductVariantsRestrictedByDiscountId(discount.DiscountId))
this.DiscountService.RemoveDiscountRestriction(pv.ProductVariantId, discount.DiscountId);
foreach (int productVariantId in restrictedProductVariantIds)
this.DiscountService.AddDiscountRestriction(productVariantId, discount.DiscountId);
}
else
{
discount = new Discount()
{
DiscountTypeId = (int)discountType,
DiscountRequirementId = (int)discountRequirement,
RequirementSpentAmount = requirementSpentAmount,
RequirementBillingCountryIs = requirementBillingCountryIs,
RequirementShippingCountryIs = requirementShippingCountryIs,
DiscountLimitationId = (int)discountLimitation,
LimitationTimes = limitationTimes,
Name = name,
UsePercentage = usePercentage,
DiscountPercentage = discountPercentage,
DiscountAmount = discountAmount,
StartDate = discountStartDate,
EndDate = discountEndDate,
RequiresCouponCode = requiresCouponCode,
CouponCode = couponCode
};
this.DiscountService.InsertDiscount(discount);
//discount requirements
foreach (int customerRoleId in CustomerRoleMappingControl.SelectedCustomerRoleIds)
this.CustomerService.AddDiscountToCustomerRole(customerRoleId, discount.DiscountId);
foreach (int productVariantId in restrictedProductVariantIds)
this.DiscountService.AddDiscountRestriction(productVariantId, discount.DiscountId);
}
return discount;
}
/// <summary>
/// Gets shopping cart total
/// </summary>
/// <param name="cart">Cart</param>
/// <param name="paymentMethodId">Payment method identifier</param>
/// <param name="customer">Customer</param>
/// <param name="appliedGiftCards">Applied gift cards</param>
/// <param name="discountAmount">Applied discount amount</param>
/// <param name="appliedDiscount">Applied discount</param>
/// <param name="useRewardPoints">A value indicating whether to use reward points</param>
/// <param name="redeemedRewardPoints">Reward points to redeem</param>
/// <param name="redeemedRewardPointsAmount">Reward points amount in primary store currency to redeem</param>
/// <returns>Shopping cart total;Null if shopping cart total couldn't be calculated now</returns>
public decimal? GetShoppingCartTotal(ShoppingCart cart,
int paymentMethodId, Customer customer,
out decimal discountAmount, out Discount appliedDiscount,
out List<AppliedGiftCard> appliedGiftCards,
bool useRewardPoints, out int redeemedRewardPoints, out decimal redeemedRewardPointsAmount)
{
string subTotalError = string.Empty;
string shippingError = string.Empty;
string paymentMethodAdditionalFeeError = string.Empty;
string taxError = string.Empty;
redeemedRewardPoints = 0;
redeemedRewardPointsAmount = decimal.Zero;
//subtotal without tax
decimal subtotalBase = decimal.Zero;
decimal orderSubTotalDiscountAmount = decimal.Zero;
Discount orderSubTotalAppliedDiscount = null;
decimal subTotalWithoutDiscountBase = decimal.Zero;
decimal subTotalWithDiscountBase = decimal.Zero;
subTotalError = this.GetShoppingCartSubTotal(cart,
customer, false, out orderSubTotalDiscountAmount, out orderSubTotalAppliedDiscount,
out subTotalWithoutDiscountBase, out subTotalWithDiscountBase);
//subtotal with discount
subtotalBase = subTotalWithDiscountBase;
//shipping without tax
decimal? shoppingCartShipping = IoC.Resolve<IShippingService>().GetShoppingCartShippingTotal(cart, customer, false, ref shippingError);
//payment method additional fee without tax
decimal paymentMethodAdditionalFeeWithoutTax = decimal.Zero;
if (paymentMethodId > 0)
{
decimal paymentMethodAdditionalFee = IoC.Resolve<IPaymentService>().GetAdditionalHandlingFee(paymentMethodId);
paymentMethodAdditionalFeeWithoutTax = IoC.Resolve<ITaxService>().GetPaymentMethodAdditionalFee(paymentMethodAdditionalFee,
false, customer, ref paymentMethodAdditionalFeeError);
}
//tax
decimal shoppingCartTax = IoC.Resolve<ITaxService>().GetTaxTotal(cart, paymentMethodId, customer, ref taxError);
//order total
decimal resultTemp = decimal.Zero;
resultTemp += subtotalBase;
if (shoppingCartShipping.HasValue)
{
resultTemp += shoppingCartShipping.Value;
}
resultTemp += paymentMethodAdditionalFeeWithoutTax;
resultTemp += shoppingCartTax;
resultTemp = Math.Round(resultTemp, 2);
#region Discount
discountAmount = GetOrderTotalDiscount(customer, resultTemp, out appliedDiscount);
//sub totals with discount
if (resultTemp < discountAmount)
discountAmount = resultTemp;
//reduce subtotal
resultTemp -= discountAmount;
if (resultTemp < decimal.Zero)
resultTemp = decimal.Zero;
resultTemp = Math.Round(resultTemp, 2);
#endregion
#region Gift Cards
//let's apply gift cards now (gift cards that can be used)
appliedGiftCards = new List<AppliedGiftCard>();
if (!cart.IsRecurring)
{
//we don't apply gift cards for recurring products
var giftCards = GiftCardHelper.GetActiveGiftCards(customer);
foreach (var gc in giftCards)
{
if (resultTemp > decimal.Zero)
{
decimal remainingAmount = GiftCardHelper.GetGiftCardRemainingAmount(gc);
decimal amountCanBeUsed = decimal.Zero;
if (resultTemp > remainingAmount)
amountCanBeUsed = remainingAmount;
else
amountCanBeUsed = resultTemp;
//reduce subtotal
resultTemp -= amountCanBeUsed;
AppliedGiftCard appliedGiftCard = new AppliedGiftCard();
appliedGiftCard.GiftCardId = gc.GiftCardId;
appliedGiftCard.AmountCanBeUsed = amountCanBeUsed;
appliedGiftCards.Add(appliedGiftCard);
}
}
}
#endregion
if (resultTemp < decimal.Zero)
resultTemp = decimal.Zero;
resultTemp = Math.Round(resultTemp, 2);
decimal? orderTotal = null;
if (!String.IsNullOrEmpty(subTotalError) ||
!String.IsNullOrEmpty(shippingError) ||
!String.IsNullOrEmpty(paymentMethodAdditionalFeeError) ||
!String.IsNullOrEmpty(taxError))
{
//return null if we have errors
orderTotal = null;
return orderTotal;
}
else
{
//return result if we have no errors
orderTotal = resultTemp;
}
#region Reward points
if (IoC.Resolve<IOrderService>().RewardPointsEnabled && useRewardPoints && customer != null)
{
int rewardPointsBalance = customer.RewardPointsBalance;
decimal rewardPointsBalanceAmount = IoC.Resolve<IOrderService>().ConvertRewardPointsToAmount(rewardPointsBalance);
if (orderTotal.HasValue && orderTotal.Value > decimal.Zero)
{
if (orderTotal.Value > rewardPointsBalanceAmount)
{
redeemedRewardPoints = rewardPointsBalance;
redeemedRewardPointsAmount = rewardPointsBalanceAmount;
}
else
{
redeemedRewardPointsAmount = orderTotal.Value;
redeemedRewardPoints = IoC.Resolve<IOrderService>().ConvertAmountToRewardPoints(redeemedRewardPointsAmount);
}
}
}
#endregion
if (orderTotal.HasValue)
{
orderTotal = orderTotal.Value - redeemedRewardPointsAmount;
orderTotal = Math.Round(orderTotal.Value, 2);
return orderTotal;
}
else
return null;
}
/// <summary>
/// Gets a shipping discount
/// </summary>
/// <param name="customer">Customer</param>
/// <param name="shippingTotal">Shipping total</param>
/// <param name="appliedDiscount">Applied discount</param>
/// <returns>Shipping discount</returns>
public static decimal GetShippingDiscount(Customer customer,
decimal shippingTotal, out Discount appliedDiscount)
{
decimal shippingDiscountAmount = decimal.Zero;
string customerCouponCode = string.Empty;
if (customer != null)
customerCouponCode = customer.LastAppliedCouponCode;
var allDiscounts = DiscountManager.GetAllDiscounts(DiscountTypeEnum.AssignedToShipping);
var allowedDiscounts = new List<Discount>();
foreach (var _discount in allDiscounts)
{
if (_discount.IsActive(customerCouponCode) &&
_discount.DiscountType == DiscountTypeEnum.AssignedToShipping &&
!allowedDiscounts.ContainsDiscount(_discount.Name))
{
//discount requirements
if (_discount.CheckDiscountRequirements(customer)
&& _discount.CheckDiscountLimitations(customer))
{
allowedDiscounts.Add(_discount);
}
}
}
appliedDiscount = DiscountManager.GetPreferredDiscount(allowedDiscounts, shippingTotal);
if (appliedDiscount != null)
{
shippingDiscountAmount = appliedDiscount.GetDiscountAmount(shippingTotal);
}
if (shippingDiscountAmount < decimal.Zero)
shippingDiscountAmount = decimal.Zero;
shippingDiscountAmount = Math.Round(shippingDiscountAmount, 2);
return shippingDiscountAmount;
}
/// <summary>
/// Gets shopping cart shipping total
/// </summary>
/// <param name="cart">Cart</param>
/// <param name="customer">Customer</param>
/// <param name="includingTax">A value indicating whether calculated price should include tax</param>
/// <param name="taxRate">Applied tax rate</param>
/// <param name="appliedDiscount">Applied discount</param>
/// <param name="error">Error</param>
/// <returns>Shipping total</returns>
public static decimal? GetShoppingCartShippingTotal(ShoppingCart cart,
Customer customer, bool includingTax, out decimal taxRate,
out Discount appliedDiscount, ref string error)
{
decimal? shippingTotalWithoutDiscount = null;
decimal? shippingTotalWithDiscount = null;
decimal? shippingTotalWithDiscountTaxed = null;
appliedDiscount = null;
taxRate = decimal.Zero;
bool isFreeShipping = IsFreeShipping(cart, customer);
if (isFreeShipping)
return decimal.Zero;
ShippingOption lastShippingOption = null;
if (customer != null)
{
lastShippingOption = customer.LastShippingOption;
}
if (lastShippingOption != null)
{
//use last shipping option (get from cache)
//we have already discounted cache value
shippingTotalWithoutDiscount = lastShippingOption.Rate;
//discount
decimal discountAmount = GetShippingDiscount(customer,
shippingTotalWithoutDiscount.Value, out appliedDiscount);
shippingTotalWithDiscount = shippingTotalWithoutDiscount - discountAmount;
if (shippingTotalWithDiscount < decimal.Zero)
shippingTotalWithDiscount = decimal.Zero;
shippingTotalWithDiscount = Math.Round(shippingTotalWithDiscount.Value, 2);
}
else
{
//use fixed rate (if possible)
Address shippingAddress = null;
if (customer != null)
{
shippingAddress = customer.ShippingAddress;
}
var ShipmentPackage = CreateShipmentPackage(cart, customer, shippingAddress);
var shippingRateComputationMethods = ShippingRateComputationMethodManager.GetAllShippingRateComputationMethods(false);
if (shippingRateComputationMethods.Count == 0)
throw new NopException("Shipping rate computation method could not be loaded");
if (shippingRateComputationMethods.Count == 1)
{
var shippingRateComputationMethod = shippingRateComputationMethods[0];
var iShippingRateComputationMethod = Activator.CreateInstance(Type.GetType(shippingRateComputationMethod.ClassName)) as IShippingRateComputationMethod;
decimal? fixedRate = iShippingRateComputationMethod.GetFixedRate(ShipmentPackage);
if (fixedRate.HasValue)
{
decimal additionalShippingCharge = GetShoppingCartAdditionalShippingCharge(cart, customer);
shippingTotalWithoutDiscount = fixedRate.Value + additionalShippingCharge;
shippingTotalWithoutDiscount = Math.Round(shippingTotalWithoutDiscount.Value, 2);
decimal shippingTotalDiscount = GetShippingDiscount(customer, shippingTotalWithoutDiscount.Value, out appliedDiscount);
shippingTotalWithDiscount = shippingTotalWithoutDiscount.Value - shippingTotalDiscount;
if (shippingTotalWithDiscount.Value < decimal.Zero)
shippingTotalWithDiscount = decimal.Zero;
}
}
}
if (!shippingTotalWithDiscount.HasValue)
{
error = "Shipping total could not be calculated";
}
else
{
shippingTotalWithDiscountTaxed = TaxManager.GetShippingPrice(shippingTotalWithDiscount.Value,
includingTax,
customer,
out taxRate,
ref error);
shippingTotalWithDiscountTaxed = Math.Round(shippingTotalWithDiscountTaxed.Value, 2);
}
return shippingTotalWithDiscountTaxed;
}
/// <summary>
/// Gets discount amount
/// </summary>
/// <param name="shoppingCartItem">The shopping cart item</param>
/// <param name="customer">The customer</param>
/// <param name="appliedDiscount">Applied discount</param>
/// <returns>Discount amount</returns>
public static decimal GetDiscountAmount(ShoppingCartItem shoppingCartItem, Customer customer,
out Discount appliedDiscount)
{
appliedDiscount = null;
decimal discountAmount = decimal.Zero;
var productVariant = shoppingCartItem.ProductVariant;
if (productVariant != null)
{
decimal attributesTotalPrice = decimal.Zero;
var pvaValues = ProductAttributeHelper.ParseProductVariantAttributeValues(shoppingCartItem.AttributesXml);
foreach (var pvaValue in pvaValues)
{
attributesTotalPrice += pvaValue.PriceAdjustment;
}
decimal productVariantDiscountAmount = GetDiscountAmount(productVariant, customer, attributesTotalPrice, out appliedDiscount);
discountAmount = productVariantDiscountAmount * shoppingCartItem.Quantity;
}
discountAmount = Math.Round(discountAmount, 2);
return discountAmount;
}
/// <summary>
/// Gets discount amount
/// </summary>
/// <param name="productVariant">Product variant</param>
/// <param name="customer">The customer</param>
/// <param name="additionalCharge">Additional charge</param>
/// <param name="appliedDiscount">Applied discount</param>
/// <returns>Discount amount</returns>
public static decimal GetDiscountAmount(ProductVariant productVariant, Customer customer,
decimal additionalCharge, out Discount appliedDiscount)
{
decimal appliedDiscountAmount = decimal.Zero;
//we don't apply discounts to products with price entered by a customer
if (productVariant.CustomerEntersPrice)
{
appliedDiscount = null;
return appliedDiscountAmount;
}
appliedDiscount = GetPreferredDiscount(productVariant, customer, additionalCharge);
if (appliedDiscount != null)
{
decimal finalPriceWithoutDiscount = GetFinalPrice(productVariant, customer, additionalCharge, false);
appliedDiscountAmount = appliedDiscount.GetDiscountAmount(finalPriceWithoutDiscount);
}
return appliedDiscountAmount;
}
/// <summary>
/// Gets discount amount
/// </summary>
/// <param name="productVariant">Product variant</param>
/// <param name="customer">The customer</param>
/// <param name="additionalCharge">Additional charge</param>
/// <param name="appliedDiscount">Applied discount</param>
/// <returns>Discount amount</returns>
public static decimal GetDiscountAmount(ProductVariant productVariant, Customer customer,
decimal additionalCharge, out Discount appliedDiscount)
{
return GetDiscountAmount(productVariant, customer, additionalCharge, 1, out appliedDiscount);
}
