public double CalculateTax(Person person, RateStructure structure)
{
if (structure == null)
{
throw new ArgumentNullException();
}
//var provider = new RateProvider();
//var rate = provider.GetRate();
//var rate = 0.3;
var tax = person.Income * structure.Rate;
if (tax <= 0)
{
tax = 0;
}
tax = getSurcharge(structure, tax);
if (tax > 0)
{
_logger.Log(tax.ToString());
}
return(tax);
}
private static double getSurcharge(RateStructure structure, double tax)
{
if (tax > structure.SurchargeLimit)
{
tax = tax + structure.Surcharge;
}
return(tax);
}
