public abstract ITaxStructured DoCalc(
TaxSession session,
IAddress fromAddress,
IAddress toAddress,
Amount amount,
Amount shipping);
public ITaxCalculation Calc(
TaxSession session,
IAddress wholesellerAddress,
string[] wholesellerNexusStates,
IAddress retailerAddress,
string[] retailerNexusStates,
string[] retailerCertificateStates,
IAddress shippingAddress,
Amount wholesalePrice,
Amount retailPrice,
Amount shipping)
{
if (!wholesalePrice.CurrencyISO.EqualsOrdIgnoreCase(retailPrice.CurrencyISO) ||
!wholesalePrice.CurrencyISO.EqualsOrdIgnoreCase(shipping.CurrencyISO) ||
!retailPrice.CurrencyISO.EqualsOrdIgnoreCase(shipping.CurrencyISO))
{
throw new TaxException(GetType().FullName + StringConsts.TAX_CALC_DIFFERENT_CURRENCIES_ERROR +
".Calc(wholesalePrice='{0}', retailPrice='{1}', shipping='{2}')".Args(wholesalePrice, retailPrice, shipping));
}
var currencyISO = retailPrice.CurrencyISO;
var wholesellerHasNexus = wholesellerNexusStates.Any(s => s.EqualsOrdIgnoreCase(shippingAddress.Region));
var retailerHasNexus = retailerNexusStates.Any(s => s.EqualsOrdIgnoreCase(shippingAddress.Region));
var retailerHasCertificate = retailerCertificateStates.Any(cs => cs.EqualsOrdIgnoreCase(shippingAddress.Region));
if (wholesellerHasNexus)
{
if (retailerHasNexus)
{
if (retailerHasCertificate)
{
var retailerTax = DoCalc(session, retailerAddress, shippingAddress, retailPrice, shipping);
return(new TaxCalculation()
{
CurrencyISO = currencyISO, Recipient = shippingAddress.Region, RetailerTax = retailerTax
});
}
else
{
var wholesellerTax = DoCalc(session, wholesellerAddress, shippingAddress, wholesalePrice, shipping);
var retailerTax = DoCalc(session, retailerAddress, shippingAddress, retailPrice, shipping);
return(new TaxCalculation()
{
CurrencyISO = currencyISO, Recipient = shippingAddress.Region, WholesellerTax = wholesellerTax, RetailerTax = retailerTax
});
}
}
else
{
if (retailerHasCertificate)
{
return(TaxCalculation.NoneInstance);
}
else
{
var wholesellerTax = DoCalc(session, wholesellerAddress, shippingAddress, wholesalePrice, shipping);
return(new TaxCalculation()
{
CurrencyISO = currencyISO, Recipient = shippingAddress.Region, WholesellerTax = wholesellerTax
});
}
}
}
else
{
if (retailerHasNexus)
{
var retailerTax = DoCalc(session, retailerAddress, shippingAddress, retailPrice, shipping);
return(new TaxCalculation()
{
CurrencyISO = currencyISO, Recipient = shippingAddress.Region, RetailerTax = retailerTax
});
}
else
{
return(TaxCalculation.NoneInstance);
}
}
}