public static SingletonFileHandler Instance(Booking booking, Customer cust, List <Guest> guests, Extras extra)
{
if (_instance == null)
{
_instance = new SingletonFileHandler(booking, cust, guests, extra);
}
return(_instance);
}
private void btnSubmit_Click(object sender, RoutedEventArgs e)
{
//On click of addall to booking
//Unit test is carried out to show functionality of classes
//Tests are outputted to the Console.
UnitTest test = new UnitTest();
bool flag = false;
booking = new Booking(); //flush booking/cust to remove any old data
cust = new Customer();
try
{
booking.ArrivalDate = txtArrivalDate.Text;
booking.DepartureDate = txtDepDate.Text;
cust.Name = txtCustName.Text;
cust.Address = txtCustAdd.Text;
booking.ReferenceNumber = int.Parse(File.ReadLines(@"D:\refno.txt").Last()) + 1; //get refno and ++
if (!isGuestSet())
{
throw new ArgumentException("Please Add at least one Guest", "Guest");
}
if (Convert.ToDateTime(booking.DepartureDate) < Convert.ToDateTime(booking.ArrivalDate))
{
throw new ArgumentException("Departure Date must be after arrival date", "Date");
}
flag = true;
}
catch (Exception excep)
{
//catch errors thrown by class properties
MessageBox.Show(excep.Message, "Error");
}
if (flag)
{
//If no errors in data
double price = CalculateCost();
lblCost.Content = "Cost: " + price;
Guest[] guestlist = { Window1.guestOne, Window1.guestTwo, Window1.guestThree, Window1.guestFour };
List <Guest> SetGuests = new List <Guest>();
foreach (Guest x in guestlist)
{
if (!String.IsNullOrEmpty(x.Name))
{
SetGuests.Add(x);
}
}
SingletonFileHandler.RESET(); //reset singleton so new data can be added
SingletonFileHandler fh = SingletonFileHandler.Instance(booking, cust, SetGuests, extrasWind);
}
}
public static void RESET()
{
//if booking already created, flush class
_instance = null;
}