public List <Seat> GetAvailableSeats(SeatsRequested seatsRequested)
{
if (ExceedCapacity(seatsRequested))
{
return(new List <Seat>());
}
return(GetReserveSeats(seatsRequested).ToList());
}
public ReservationAttempt BuildReservationAttempt(SeatsRequested seatsRequested)
{
foreach (var coach in Coaches.Values)
{
var reservationAttenpt = new ReservationAttempt(TrainId, seatsRequested, coach.GetAvailableSeats(seatsRequested));
if (reservationAttenpt.IsFulFilled())
{
return(reservationAttenpt);
}
}
return(new ReservationAttempt(TrainId, seatsRequested, GetReservableSeats().Take(seatsRequested.Value).ToList()));
}
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 ReservationAttempt(TrainId trainId, SeatsRequested seatsRequested, List <Seat> seats)
{
TrainId = trainId;
SeatsRequested = seatsRequested;
Seats = seats;
}
private bool ExceedCapacity(SeatsRequested seatsRequested)
{
var numberOfReservedSeats = Seats.Count(x => !x.IsSeatNotReserved());
return(seatsRequested.Value + numberOfReservedSeats > Seats.Count() * 0.7);
}
private IEnumerable <Seat> GetReserveSeats(SeatsRequested seatsRequested)
{
return(Seats.Where(x => x.IsSeatNotReserved()).Take(seatsRequested.Value));
}
public bool MustNotExceedTrainCapacity(SeatsRequested seatsRequested)
{
return(ReservedSeats + seatsRequested.Value <= Math.Floor(ThreasholdManager.GetMaxRes() * GetMaxSeat()));
}
