public void ProcessInvice(CarRental carRental)
{
TimeSpan duration = carRental.Finish.Subtract(carRental.Start);
double basicPayment = 0.0;
if (duration.TotalHours <= 12.0)
{
basicPayment = PricePerHour * Math.Ceiling(duration.TotalHours);
}
else
{
basicPayment = PricePerDay * Math.Ceiling(duration.TotalDays);
}
double tax = _taxServices.Tax(basicPayment);
carRental.Invoice = new Invoice(basicPayment, tax);
}
