//takes the required values and add route related information to database
public static string AddRoute(string From, string To, int Cost)
{
try
{
var b = from L in d.Route_Table
where L.From.ToUpper() == From.ToUpper() && L.To.ToUpper() == To.ToUpper()
select L;
if (b.Count() > 0)
{
return("route already exists");
}
int rid = (from r in d.Route_Table
select r).Count() + 1;
Route_Table Rt = new Route_Table();
Rt.Route_ID = "R" + string.Format("{0:000}", rid);
Rt.From = From;
Rt.To = To;
Rt.Cost = Cost;
d.Route_Table.Add(Rt);
d.SaveChanges();
return("Route details from " + Rt.From + " to " + Rt.To + " added . Route ID is" + Rt.Route_ID);
}
catch (DbUpdateException E)
{
SqlException ex = E.GetBaseException() as SqlException;
if (ex.Message.Contains("PK_Route_Table"))
{
return("Route id already exists");
}
}
return(null);
}
//takes ticket id as input and cancels the booking by removing required column in booking table
//increments the available tickets
//returns confirmation as a string with calculated refund item with respect to hours left to booking
public static string CancelTicket(string bookid)
{
try
{
double amountRefund;
var r = from L in d.Booking_Table
where L.Ticket_ID == bookid
select L;
Booking_Table B = r.FirstOrDefault();
string sid = B.SID;
int not = B.NoOfTickets;
var s = from L1 in d.Schedule_Table
where L1.SID == sid
select L1;
Schedule_Table S = s.FirstOrDefault();
string rid = S.Route_ID;
DateTime dateOT = S.DateOfJourney;
int timeOT = int.Parse(S.StartTime.Hours.ToString());
DateTime todaydate = DateTime.Now;
int age = (int)(dateOT.Subtract(todaydate).TotalHours);
int hoursLeft = age + timeOT;
var rt = from L2 in d.Route_Table
where L2.Route_ID == rid
select L2;
Route_Table R = rt.FirstOrDefault();
int cost = R.Cost;
int TicketCost = cost * not;
if (hoursLeft >= 48)
{
amountRefund = TicketCost - (0.1 * TicketCost);
}
else if (hoursLeft < 48 && hoursLeft >= 24)
{
amountRefund = TicketCost - (0.25 * TicketCost);
}
else if (hoursLeft < 24 && hoursLeft >= 12)
{
amountRefund = TicketCost - (0.5 * TicketCost);
}
else
{
amountRefund = TicketCost - (1 * TicketCost);
}
S.AvailableSeats = S.AvailableSeats + not;
d.SaveChanges();
d.Booking_Table.Remove(B);
d.SaveChanges();
return("Tickets Cancelled Successfully. Refund of Amount Rs:" + amountRefund + " inititated to Customer");
}
catch (DbUpdateException E)
{
SqlException ex = E.GetBaseException() as SqlException;
}
return(null);
}
