){kind=link}
/// <summary>
/// Calculates and applies taxes for the given basket.
/// </summary>
/// <param name="basket">The basket to calculate taxes on.</param>
/// <returns>The total amount of tax applied.</returns>
/// <remarks>Any pre-existing tax line items will be removed from the basket before the calculation.</remarks>
public static LSDecimal Calculate(Basket basket)
{
//CLEAR ANY EXISTING TAXES
ClearExistingTaxes(basket);
//DO NOT PROCESS TAXES IF USER BELONGS TO A TEXT EXEMPT GROUP
User user = basket.User;
if (user != null)
{
foreach (UserGroup userGroup in user.UserGroups)
{
if (userGroup.Group != null && userGroup.Group.IsTaxExempt)
{
return(0);
}
}
}
//INITIALIZE TAXES
LSDecimal totalTax = 0;
//FINALIZE ANY TAXES FROM INTEGRATED PROVIDERS
TaxGatewayCollection taxGateways = Token.Instance.Store.TaxGateways;
foreach (TaxGateway taxGateway in taxGateways)
{
ITaxProvider provider = taxGateway.GetProviderInstance();
if (provider != null)
{
try
{
totalTax += provider.Calculate(basket);
}
catch (Exception ex)
{
Logger.Error("Could not calculate with the configured tax provider: " + taxGateway.ClassId, ex);
}
}
else
{
Logger.Error("Could not load the configured tax provider: " + taxGateway.ClassId);
}
}
return(totalTax);
}
