public bool ShouldTowCar(ParkingOffense offense, string tag, int zipCode)
{
List <ParkingTicketDto> ParkingTickets = new List <ParkingTicketDto>();
//Gather Tickets from all states
List <IStateParkingAuthority> parkingAuthorities = new List <IStateParkingAuthority>
{
_MY, _IL, _IN, _PA
};
//Note: Imagine if we did all 50 states, and each called a web service.
//Todo: We can eventually move this to async calls
//Todo: Let's see if we can reduce the number of calls
// by changing how we add to the parking tickets object.
// Once we hit one state that trips flags for being towed,
// no need to keep calling.
foreach (IStateParkingAuthority parkingAuthority in parkingAuthorities)
{
try
{
ParkingTickets.AddRange(parkingAuthority.GetTicketsFromTag(tag));
}
catch (Exception e)
{
_logger.LogException(e);
}
}
bool shouldTow = _EnforcementRules.ShouldTowCar(ParkingTickets, offense, zipCode);
return(shouldTow);
}
//Todo: I feel like we should now figure out how to test this.
// Previously, I wasn't sure because it was just a
// collection, but now that there's two different ones,
// I think it is time.
public bool ShouldTowCar(List <ParkingTicketDto> existingTickets,
ParkingOffense offense, int zipCode)
{
//Note: We're doing it this way to not invalidate the open/close principle.
// There's no business logic here to test though, since it is just a list,
// and the business logic is inside the rules.
List <TowRule> towRules = new List <TowRule>();
towRules.Add(new TowIfInHandicappedSpot(offense));
towRules.Add(new TowIfTotalFinesEquateMoreThanMaximumAmount(existingTickets.Sum(x => x.Fine)));
towRules.Add(new TowIfVehicleHasThreeOrMoreTickets(existingTickets.Count));
towRules.Add(new TowIfSnowOnGround(zipCode));
bool shouldTow = towRules.Any(x => x.ShouldTowCar());
return(shouldTow);
}
public bool ShouldTowCar(List <ParkingTicketDto> existingTickets, ParkingOffense offense, int zipCode)
{
//Note: In the spring, we really don't care about the zip code.
// It felt silly thought to create an overload to just point
// to another method.
//Note: We're doing it this way to not invalidate the open/close principle.
// There's no business logic here to test though, since it is just a list,
// and the business logic is inside the rules.
List <TowRule> towRules = new List <TowRule>();
towRules.Add(new TowIfInHandicappedSpot(offense));
towRules.Add(new TowIfTotalFinesEquateMoreThanMaximumAmount(existingTickets.Sum(x => x.Fine)));
towRules.Add(new TowIfVehicleHasThreeOrMoreTickets(existingTickets.Count));
bool shouldTow = towRules.Any(x => x.ShouldTowCar());
return(shouldTow);
}
public bool DetermineTicket(ParkingOffense scanOffense, string scanTag)
{
//Note: We should probably move this into an engine like we have for tows.
// It could also determine how much the ticket is for, and handle
// warning tickets maybe.
bool isTicketableOffense = true;
if (scanOffense == ParkingOffense.ExpiredParkingMeter)
{
//Is It a holiday?
var holidays = _holidayService.GetHolidays();
bool isHoliday = holidays.Any(
x => x.Date.Month == SystemTime.Now().Month &&
x.Date.Day == SystemTime.Now().Day);
//It is a holiday, we don't charge meters on holiday!
isTicketableOffense = !isHoliday;
}
//We don't want to give a ticket to the same tag, on the same day, for the same thing
List <ParkingTicketDto> myStateParkingTickets = _myStateParkingAuthority.GetTicketsFromTag(scanTag);
if (myStateParkingTickets.Any(x =>
x.Offense == scanOffense.ToString() &&
x.DateOfOffense.Month == SystemTime.Now().Month &&
x.DateOfOffense.Day == SystemTime.Now().Day &&
x.DateOfOffense.Year == SystemTime.Now().Year
))
{
isTicketableOffense = false;
}
//We Determined they need a parking ticket.
if (isTicketableOffense)
{
_myStateParkingAuthority.IssueParkingTicketDto(scanOffense.ToString(), 30);
}
return(isTicketableOffense);
}
static void Main(string[] args)
{
ParkingTicketCalculator ptc = new ParkingTicketCalculator();
ParkingOffense myOffense = ParkingOffense.UnknownParkingOffense;
//Todo: We have to validate user Input. We could pass ham as an argument
// and it shouldn't throw an exception. Maybe consider moving
// the parsing to business logic so that we don't have to do this
// for the front end.
if (Enum.IsDefined(typeof(ParkingOffense), Convert.ToInt32(args[1])))
{
myOffense = (ParkingOffense)Convert.ToInt32(args[1]);
}
string tag = args[0];
//Todo: Probably should have verification on this so that we fail safely
// when someone enters ham as a zip.
int zip = Convert.ToInt32(args[2]);
Console.WriteLine("Parking Offense: " + myOffense.ToString());
Console.WriteLine("Tag: " + tag);
Console.WriteLine("Zip Code: " + zip);
Console.WriteLine("Scan Started at: " + DateTime.Now.ToString());
string result = ptc.ScanForOffense(new ScanInformation {
Offense = myOffense, Tag = tag, zipCode = zip
});
Console.WriteLine(Environment.NewLine);
Console.WriteLine(result);
Console.WriteLine(Environment.NewLine);
Console.WriteLine("Scan Done at: " + DateTime.Now.ToString());
Console.WriteLine("Press any key to close.");
Console.ReadKey();
}
public TowIfInHandicappedSpot(ParkingOffense offense)
{
_offense = offense;
}
