/// <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="appliedDiscount">Applied discount</param>
/// <param name="error">Error</param>
/// <returns>Shipping total</returns>
public static decimal?GetShoppingCartShippingTotal(ShoppingCart cart,
Customer customer, bool includingTax, out Discount appliedDiscount, ref string error)
{
decimal?shippingTotalWithoutDiscount = null;
decimal?shippingTotalWithDiscount = null;
decimal?shippingTotalWithDiscountTaxed = null;
appliedDiscount = null;
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
shippingTotalWithDiscount = lastShippingOption.Rate;
appliedDiscount = DiscountManager.GetDiscountById(lastShippingOption.AppliedDiscountId);
}
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,
ref error);
shippingTotalWithDiscountTaxed = Math.Round(shippingTotalWithDiscountTaxed.Value, 2);
}
return(shippingTotalWithDiscountTaxed);
}
/// <summary>
/// Gets available shipping options
/// </summary>
/// <param name="cart">Shopping cart</param>
/// <param name="customer">Customer</param>
/// <param name="shippingAddress">Shipping address</param>
/// <param name="allowedShippingRateComputationMethodId">Allowed shipping rate computation method identifier; null to load shipping options of all methods</param>
/// <param name="error">Error</param>
/// <returns>Shipping options</returns>
public static ShippingOptionCollection GetShippingOptions(ShoppingCart cart,
Customer customer, Address shippingAddress,
int?allowedShippingRateComputationMethodId, ref string error)
{
if (cart == null)
{
throw new ArgumentNullException("cart");
}
var shippingOptions = new ShippingOptionCollection();
bool isFreeShipping = IsFreeShipping(cart, customer);
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");
}
foreach (var srcm in shippingRateComputationMethods)
{
if (allowedShippingRateComputationMethodId.HasValue &&
allowedShippingRateComputationMethodId.Value > 0 &&
allowedShippingRateComputationMethodId.Value != srcm.ShippingRateComputationMethodId)
{
continue;
}
var iShippingRateComputationMethod = Activator.CreateInstance(Type.GetType(srcm.ClassName)) as IShippingRateComputationMethod;
var shippingOptions2 = iShippingRateComputationMethod.GetShippingOptions(ShipmentPackage, ref error);
if (shippingOptions2 != null)
{
foreach (var so2 in shippingOptions2)
{
so2.ShippingRateComputationMethodId = srcm.ShippingRateComputationMethodId;
shippingOptions.Add(so2);
}
}
}
if (shippingOptions.Count == 0)
{
error = "Shipping options could not be loaded";
}
//additional shipping charges
decimal additionalShippingCharge = GetShoppingCartAdditionalShippingCharge(cart, customer);
shippingOptions.ForEach(so => so.Rate += additionalShippingCharge);
//discounts
foreach (var so in shippingOptions)
{
decimal rateWithoutDiscount = Math.Round(so.Rate, 2);
decimal rateWithDiscount = decimal.Zero;
Discount rateDiscount = null;
decimal rateDiscountAmount = GetShippingDiscount(customer, rateWithoutDiscount, out rateDiscount);
rateWithDiscount = rateWithoutDiscount - rateDiscountAmount;
if (rateWithDiscount < decimal.Zero)
{
rateWithDiscount = decimal.Zero;
}
rateWithDiscount = Math.Round(rateWithDiscount, 2);
so.Rate = rateWithDiscount;
if (rateDiscount != null)
{
so.AppliedDiscountId = rateDiscount.DiscountId;
}
}
//free shipping
if (isFreeShipping)
{
shippingOptions.ForEach(so => so.Rate = decimal.Zero);
}
return(shippingOptions);
}
/// <summary>
/// Gets available shipping options
/// </summary>
/// <param name="cart">Shopping cart</param>
/// <param name="customer">Customer</param>
/// <param name="shippingAddress">Shipping address</param>
/// <param name="allowedShippingRateComputationMethodId">Filter by shipping rate computation method identifier; null to load shipping options of all shipping rate computation methods</param>
/// <param name="error">Error</param>
/// <returns>Shipping options</returns>
public static List <ShippingOption> GetShippingOptions(ShoppingCart cart,
Customer customer, Address shippingAddress,
int?allowedShippingRateComputationMethodId, ref string error)
{
if (cart == null)
{
throw new ArgumentNullException("cart");
}
var shippingOptions = new List <ShippingOption>();
bool isFreeShipping = IsFreeShipping(cart, customer);
//create a package
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");
}
//get shipping options
foreach (var srcm in shippingRateComputationMethods)
{
if (allowedShippingRateComputationMethodId.HasValue &&
allowedShippingRateComputationMethodId.Value > 0 &&
allowedShippingRateComputationMethodId.Value != srcm.ShippingRateComputationMethodId)
{
continue;
}
var iShippingRateComputationMethod = Activator.CreateInstance(Type.GetType(srcm.ClassName)) as IShippingRateComputationMethod;
var shippingOptions2 = iShippingRateComputationMethod.GetShippingOptions(shipmentPackage, ref error);
if (shippingOptions2 != null)
{
foreach (var so2 in shippingOptions2)
{
so2.ShippingRateComputationMethodId = srcm.ShippingRateComputationMethodId;
shippingOptions.Add(so2);
}
}
}
//no shipping options loaded
if (shippingOptions.Count == 0 && String.IsNullOrEmpty(error))
{
error = "Shipping options could not be loaded";
}
//additional shipping charges
decimal additionalShippingCharge = GetShoppingCartAdditionalShippingCharge(cart, customer);
shippingOptions.ForEach(so => so.Rate += additionalShippingCharge);
//free shipping
if (isFreeShipping)
{
shippingOptions.ForEach(so => so.Rate = decimal.Zero);
}
return(shippingOptions);
}
