public static RentalChargeService GetInstance()
{
if (_singleton == null)
{
_singleton = new RentalChargeService();
}
return(_singleton);
}
public Rental RentABikePerWeek(Bike bike, Person person, int weeks)
{
var rental = new Rental(bike, person, weeks * 168);
rental.Charge = RentalChargeService.GetInstance().CalculateCharge(rental);
Rentals.Add(rental);
return(rental);
}
public Rental RentABikePerDay(Bike bike, Person person, int days)
{
if (days > 23)
{
throw new Exception("Cannot rent a bike per day for more than 6 days");
}
var rental = new Rental(bike, person, days * 24);
rental.Charge = RentalChargeService.GetInstance().CalculateCharge(rental);
Rentals.Add(rental);
return(rental);
}
public Rental RentABikePerHour(Bike bike, Person person, int hours)
{
if (hours > 23)
{
throw new Exception("Cannot rent a bike per hour for more than 23 hours");
}
var rental = new Rental(bike, person, hours);
rental.Charge = RentalChargeService.GetInstance().CalculateCharge(rental);
Rentals.Add(rental);
return(rental);
}
