public async Task <Reservation> ReserveAsync(TrainId trainId, SeatsRequested seatsRequested)
{
// get the train
var train = await _trainDataService.GetTrain(trainId);
if (train.MustNotExceedTrainCapacity(seatsRequested))
{
var reservationAttenpt = train.BuildReservationAttempt(seatsRequested);
if (reservationAttenpt.IsFulFilled())
{
var bookingRef = await _bookingReference.GetBookingReference();
reservationAttenpt.AssignBookingReference(bookingRef);
await _trainDataService.ReserveAsync(reservationAttenpt);
return(reservationAttenpt.Confirm());
}
}
return(new ReservationFailure(train.TrainId));
}
public async Task <string> Reserve(string trainId, int seatsRequestedCount)
{
List <Seat> availableSeats = new List <Seat>();
int count = 0;
// get the train
var jsonTrain = await _trainDataService.GetTrain(trainId);
var trainInst = new Train(jsonTrain);
if (trainInst.ReservedSeats + seatsRequestedCount <= Math.Floor(ThreasholdManager.GetMaxRes() * trainInst.GetMaxSeat()))
{
var numberOfReserv = 0;
// find seats to reserve
for (int index = 0, i = 0; index < trainInst.Seats.Count; index++)
{
var each = trainInst.Seats[index];
if (each.BookingRef == "")
{
i++;
if (i <= seatsRequestedCount)
{
availableSeats.Add(each);
}
}
}
foreach (var unused in availableSeats)
{
count++;
}
var reservedSets = 0;
string bookingRef;
if (count != seatsRequestedCount)
{
return($"{{\"train_id\": \"{trainId}\", \"booking_reference\": \"\", \"seats\": []}}");
}
else
{
bookingRef = await _bookingReferenceService.GetBookingReference();
foreach (var availableSeat in availableSeats)
{
availableSeat.BookingRef = bookingRef;
numberOfReserv++;
reservedSets++;
}
}
if (numberOfReserv == seatsRequestedCount)
{
await _trainCaching.Save(trainId, trainInst, bookingRef);
await _trainDataService.BookSeats(trainId, bookingRef, availableSeats);
return
($"{{\"train_id\": \"{trainId}\", \"booking_reference\": \"{bookingRef}\", \"seats\": {dumpSeats(availableSeats)}}}");
}
}
return($"{{\"train_id\": \"{trainId}\", \"booking_reference\": \"\", \"seats\": []}}");
}
