/// <summary>
/// this is a method to show details for specific vehicle
/// </summary>
/// <returns></returns>
public string printDetails()
{
List <Service> vehicleServices = CarList.services != null && CarList.services.Count > 0 ? CarList.services.FindAll(s => s.vehicleID == this.Id) : new List <Service>();
Service latestService = vehicleServices != null && vehicleServices.Count > 0 ? Service.getLatestService(vehicleServices) : null;
//double kmSinceLastService = latestService != null ? (this.VehicleOdometer - latestService.ServiceOdometer) : 0;
double kmSinceLastService = vehicleServices != null ? this.VehicleOdometer - vehicleServices.Last(v => v.vehicleID == Id).ServiceOdometer : 0;
Journey relatedJourneys = CarList.journeys.Find(j => j.vehicleID == Id);
bool requiresService = vehicleServices != null && vehicleServices.Count > 0 ? Service.requiresService(vehicleServices) : false;
string requiresServiceText = requiresService ? "Yes" : "No";
StringBuilder sb = new StringBuilder();
sb.AppendLine($"Vehicle: {this.CarManufacture} {this.CarModel} {this.CarYear}");
sb.AppendLine($"Registration No: {this.RegistrationID}");
double distanceTravelled = this.getTotalDistanceTravelled();
if (distanceTravelled > 0)
{
sb.AppendLine($"Distance Travelled: {distanceTravelled} km");
}
else
{
sb.AppendLine($"This vehicle never used before for journeys");
}
int serviceCount = this.serviceCount;
if (serviceCount > 0)
{
sb.AppendLine($"Total Services: {this.serviceCount}");
}
else
{
sb.AppendLine($"Total Services: no record");
}
sb.AppendLine($"Car Revenue: {this.TotalRentalCost.ToString("C")}");
sb.AppendLine($"KM Since last service: {kmSinceLastService} km");
double fuelEconomy = FuelPurchase.getFuelEconomy(this.Id);
if (fuelEconomy > 0)
{
sb.AppendLine($"Fuel Economy: {fuelEconomy} km/L");
}
else
{
sb.AppendLine($"Fuel Economy: not available yet");
}
sb.AppendLine($"Requires service: {requiresServiceText}");
return(sb.ToString());
}
/// <summary>
/// this is a method to get the fuel economy by
/// seacrhing totalKmtravelled divided by total fuel
/// </summary>
/// <param name="VId"></param>
/// <returns></returns>
public static double getFuelEconomy(Guid VId)
{
Vehicle relatedVehicle = CarList.vehicles.Find(v => v.Id == VId);
Journey relatedJourneys = CarList.journeys.Find(j => j.vehicleID == VId);
List <FuelPurchase> fuelPurchases = CarList.fuelPurchases.Where(fp => fp.VId == relatedJourneys.vehicleID).ToList();
List <Journey> allJourneysRelatedWithFps = CarList.journeys.Where(j => j.vehicleID == relatedVehicle.Id).ToList();
double totalKmTravelled = 0.0;
double totalFuelUsed = 0.0;
if (fuelPurchases != null)
{
totalFuelUsed = fuelPurchases.Sum(fps => fps.FuelQuantity);
totalKmTravelled = allJourneysRelatedWithFps.Max(max => max.EndOdometer) - allJourneysRelatedWithFps.Min(min => min.StartOdometer);
}
return(totalKmTravelled / totalFuelUsed);
}
/// <summary>
/// this is a click event to delete journey
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void ButtonDeleteJourney_Clicked(object sender, RoutedEventArgs e)
{
Button deleteJourneyButton = sender as Button;
Journey j = deleteJourneyButton.CommandParameter as Journey;
deleteJourney(j);
Vehicle vehicle = CarList.vehicles.Find(v => v.Id == j.vehicleID);
Booking booking = CarList.bookings.Find(b => b.id == BookingID);
List <Journey> journeys = CarList.journeys.FindAll(journey => journey.BookingID == BookingID);
JourneysListView.ItemsSource = journeys;
journeysListChanged = true;
booking.updateRentPrice(journeys);
vehicle.updateTotalRentCost(CarList.bookings.FindAll(b => b.Vehicleid == vehicle.Id));
j.SaveJourney(CarList.journeys);
vehicle.SaveVehicles(CarList.vehicles);
vehicleListView.ItemsSource = CarList.vehicles;
vehicleListView.Items.Refresh();
}
/// <summary>
/// this is a click event to delete selected row of booking
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void ButtonDeleteBooking_Clicked(object sender, RoutedEventArgs e)
{
Button deleteBookingButton = sender as Button;
Booking detailsForBooking = deleteBookingButton.DataContext as Booking;
deleteBooking(detailsForBooking);
CollectionViewSource.GetDefaultView(BookingsListView.ItemsSource).Refresh();
bookingListChanged = true;
detailsForBooking.SaveBookings(bookings);
Vehicle relatedVehicle = CarList.vehicles.Find(v => v.Id == detailsForBooking.Vehicleid);
List <Booking> allBookingsWithRelatedVehicle = CarList.bookings != null && CarList.bookings.Count > 0 ? CarList.bookings.FindAll(b => b.Vehicleid == relatedVehicle.Id): null;
Journey allJourneysRelatedWithBooking = CarList.journeys != null && CarList.journeys.Count > 0 ?CarList.journeys.Find(j => j.BookingID == detailsForBooking.id): null;
if (allJourneysRelatedWithBooking != null)
{
CarList.journeys.Remove(allJourneysRelatedWithBooking);
allJourneysRelatedWithBooking.SaveJourney(CarList.journeys);
}
relatedVehicle.updateTotalRentCost(allBookingsWithRelatedVehicle);
relatedVehicle.SaveVehicles(CarList.vehicles);
vehicleListView.ItemsSource = CarList.vehicles;
vehicleListView.Items.Refresh();
}
/// <summary>
/// this is a method to update odometer
/// </summary>
public void updateOdometer()
{
if (CarList.vehicles.Count > 0)
{
vehicles.ForEach(v =>
{
List <Journey> associatedJourneys = CarList.journeys.FindAll(j => j.vehicleID == v.Id).ToList <Journey>();
List <Journey> journeysUpToToday = associatedJourneys
.Where(j => DateTime.Compare(j.JourneyEndedAt, DateTime.Now) <= 0)
.ToList <Journey>();
DateTime latestJourneyDate;
if (journeysUpToToday.Count > 0)
{
latestJourneyDate = journeysUpToToday.Max(j => j.JourneyEndedAt).Date;
Journey latestJourney = associatedJourneys.Find(j => (j.JourneyEndedAt - latestJourneyDate).TotalDays == 0);
v.VehicleOdometer = latestJourney.EndOdometer;
}
});
}
VehicleListView.Items.Refresh();
}
/// <summary>
/// this is a bool to test the delete method
/// </summary>
/// <param name="j"></param>
/// <returns></returns>
public static bool deleteJourney(Journey j)
{
return(CarList.journeys.Remove(j));
}
