// created the function as virtual to have an extension point without overriding the
// entire class implementation, only the location creation method.
public virtual IParkingRate CreateParkingRate(ParkingRateCode parkingRateCode)
{
IParkingRate parkingRate = RetriveExistingParkingRate(parkingRateCode);
if (parkingRate != null)
{
return(parkingRate);
}
parkingRate = GenerateParkingRateObject(parkingRateCode);
AddCreatedParkingRate(parkingRateCode, parkingRate);
return(parkingRate);
}
internal IParkingRate GetParkingRate(DateTime entryDateTime, DateTime exitDateTime)
{
IParkingRate appliedParkingRate = null;
foreach (var parkingRate in parkingRates)
{
if (appliedParkingRate == null)
{
if (parkingRate.DoesRateApply(entryDateTime, exitDateTime))
{
appliedParkingRate = parkingRate;
}
}
}
return(appliedParkingRate);
}
protected virtual IParkingRate GenerateParkingRateObject(ParkingRateCode parkingRateCode)
{
IParkingRate parkingRate = null;
switch (parkingRateCode)
{
case ParkingRateCode.EarlyBird:
{
parkingRate = CreateEarlyBirdRateObject();
break;
}
case ParkingRateCode.NightRate:
{
parkingRate = CreateNightRateObject();
break;
}
case ParkingRateCode.WeekendRate:
{
parkingRate = CreateWeekendRateObject();
break;
}
case ParkingRateCode.StandardHourRate:
case ParkingRateCode.StandardCalendarDayRate:
{
parkingRate = CreateStandardRateObject();
break;
}
default:
{
parkingRate = CreateStandardRateObject();
break;
}
}
return(parkingRate);
}
public virtual IParkingRate CreateParkingRate(RateName rateType)
{
IParkingRate parkingRate = null;
switch (rateType)
{
case RateName.Standard:
parkingRate = new StandardRate("Standard Rate");
break;
case RateName.Night:
parkingRate = new NightRate("Night Rate");
break;
case RateName.EarlyBird:
parkingRate = new EarlyBirdRate("Early Bird Rate");
break;
case RateName.Weekend:
parkingRate = new WeekendRate("Weekend Rate");
break;
}
return(parkingRate);
}
private void AddCreatedParkingRate(ParkingRateCode parkingRateCode, IParkingRate parkingRateObject)
{
_parkingRatesMap.Add(parkingRateCode, parkingRateObject); // add for next time
}
public ParkingTransaction(Patron patron, IParkingRate parkingRate)
{
_patron = patron;
_parkingRate = parkingRate;
}