public List <string> GetRegistrationNumbersByCarColor(string color)
{
if (ColorToRegistrationsMapping.ContainsKey(color.ToLower()) == false)
{
return(new List <string>());
}
var registrations = ColorToRegistrationsMapping[color.ToLower()];
return(registrations);
}
public void ParkCar(Car car, int slot)
{
RegistrationToParkingLotMapping.Add(car.RegistrationNumber, slot);
Cars.Add(car.RegistrationNumber, car);
if (ColorToRegistrationsMapping.ContainsKey(car.Color.ToLower()))
{
ColorToRegistrationsMapping[car.Color.ToLower()].Add(car.RegistrationNumber);
}
else
{
ColorToRegistrationsMapping.Add(car.Color.ToLower(), new List <string> {
car.RegistrationNumber
});
}
}
public List <int> GetSlotNumbersOfCarByColor(string color)
{
var list = new List <int>();
if (ColorToRegistrationsMapping.ContainsKey(color.ToLower()))
{
var registrations = ColorToRegistrationsMapping[color.ToLower()];
foreach (var registration in registrations)
{
if (RegistrationToParkingLotMapping.ContainsKey(registration))
{
list.Add(RegistrationToParkingLotMapping[registration]);
}
}
}
return(list);
}