/// <summary>
/// Generates a car. Logs to a console in case user specifies car make not correctly and 'Null' car is chosen.
/// </summary>
/// <param name="parameters">Parameters for requested car.</param>
/// <returns>A Car. Can be a 'Null' Car.</returns>
public Car ProvideCar(CarParameters parameters)
{
Car car = null;
switch (parameters.CarMake)
{
case "opel":
car = new OpelCar();
break;
case "stanley":
car = new StanleyCar();
break;
case "volvo":
car = new VolvoCar();
break;
default:
car = new NullCar();
Console.WriteLine("Logging: Possible problem, a null car is created");
break;
}
if (!(car is NullCar))
{
switch (parameters.EngineRequested)
{
case "diesel":
car.Engine = new DieselEngine();
break;
case "electric":
car.Engine = new ElectricEngine();
break;
case "gasoline":
car.Engine = new GasolineEngine();
break;
case "steam":
car.Engine = new SteamEngine();
break;
default:
car.Engine = new NoneEngine();
break;
}
switch (parameters.PurposeRequested)
{
case "groceries":
car.Purpose = new GroceriesPurpose();
break;
case "racing":
car.Purpose = new RacingPurpose();
break;
default:
car.Purpose = new NoPurpose();
break;
}
}
return(car);
}
public static ICar GetCarById(int Id) => Id >= 0 && Id < data.Count ? data[Id] : NullCar.Create();
