/// <summary>
/// Gets tax rate
/// </summary>
/// <param name="product">Product</param>
/// <param name="taxCategoryId">Tax category identifier</param>
/// <param name="customer">Customer</param>
/// <param name="price">Price (taxable value)</param>
/// <param name="taxRate">Calculated tax rate</param>
/// <param name="isTaxable">A value indicating whether a request is taxable</param>
protected virtual void GetTaxRate(Product product, string taxCategoryId,
Customer customer, decimal price, out decimal taxRate, out bool isTaxable)
{
taxRate = decimal.Zero;
isTaxable = true;
//active tax provider
ITaxProvider activeTaxProvider = null;// LoadActiveTaxProvider(); //2017_05_29 deeper problem with plugin engine
if (activeTaxProvider == null)
{
return;
}
//tax request
var calculateTaxRequest = CreateCalculateTaxRequest(product, taxCategoryId, customer, price);
//tax exempt
if (IsTaxExempt(product, calculateTaxRequest.Customer))
{
isTaxable = false;
}
//make EU VAT exempt validation (the European Union Value Added Tax)
if (isTaxable &&
_taxSettings.EuVatEnabled &&
IsVatExempt(calculateTaxRequest.Address, calculateTaxRequest.Customer))
{
//VAT is not chargeable
isTaxable = false;
}
//get tax rate
var calculateTaxResult = activeTaxProvider.GetTaxRate(calculateTaxRequest);
if (calculateTaxResult.Success)
{
//ensure that tax is equal or greater than zero
if (calculateTaxResult.TaxRate < decimal.Zero)
{
calculateTaxResult.TaxRate = decimal.Zero;
}
taxRate = calculateTaxResult.TaxRate;
}
else
{
foreach (var error in calculateTaxResult.Errors)
{
_logger.Error(string.Format("{0} - {1}", activeTaxProvider.PluginDescriptor.FriendlyName, error), null, customer);
}
}
}
/// <summary>
/// Gets tax rate
/// </summary>
/// <param name="productVariant">Product variant</param>
/// <param name="TaxClassID">Tax class identifier</param>
/// <param name="customer">Customer</param>
/// <param name="Error">Error</param>
/// <returns>Tax rate</returns>
public static decimal GetTaxRate(ProductVariant productVariant, int TaxClassID, Customer customer, ref string Error)
{
bool isFreeTax = IsFreeTax(productVariant, customer);
if (isFreeTax)
{
return(decimal.Zero);
}
CalculateTaxRequest calculateTaxRequest = CreateCalculateTaxRequest(productVariant, TaxClassID, customer);
TaxProvider activeTaxProvider = TaxManager.ActiveTaxProvider;
if (activeTaxProvider == null)
{
throw new NopException("Tax provider could not be loaded");
}
ITaxProvider iTaxProvider = Activator.CreateInstance(Type.GetType(activeTaxProvider.ClassName)) as ITaxProvider;
decimal taxRate = iTaxProvider.GetTaxRate(calculateTaxRequest, ref Error);
return(taxRate);
}
/// <summary>
/// Gets tax rate
/// </summary>
/// <param name="calculateTaxRequest">Tax calculation request</param>
/// <returns>Tax</returns>
public CalculateTaxResult GetTaxRate(CalculateTaxRequest calculateTaxRequest)
{
return(_taxProvider.GetTaxRate(calculateTaxRequest));
}
