public static decimal GetPrice(Flight flight, Tax tax)
        {
            if (tax.Price != 0)
                return tax.Price;

            return flight.BasePrice*(tax.Percentage/100);
        }
        public static Tax ToTripTax(RouteTax routeTax, Flight flight)
        {
            var tax = new Tax();

            tax.ID = routeTax.IdNumber;
            tax.ChangeType = routeTax.Tax.ChargeType.Name;
            tax.Code = routeTax.Tax.Code;
            tax.Country = routeTax.Route.DepartureAirport.City.Country.ISOCode;
            tax.SalePrice = PriceHelper.CreatePrice(TaxHelper.GetPrice(flight, routeTax.Tax));

            return tax;
        }
 public InDirectFlight(Flight flight)
 {
     Flights = new List<Flight> {flight};
 }
 public IEnumerable<RouteTax> GetRouteTaxes(Flight flight)
 {
     return flight.Route.RouteTaxes;
 }