public KeyValuePair <bool, string> CancelReservation(int driveId, int userId)
{
Require.ThatIntIsPositive(driveId);
Require.ThatIntIsPositive(userId);
Drive drive = this.drives.GetByIdQueryable(driveId)
.Include(d => d.DrivesPassengers)
.FirstOrDefault();
if (drive == null)
{
return(new KeyValuePair <bool, string>(false, "This drive does not exist."));
}
if (!this.usersService.CheckIfUserExists(userId))
{
return(new KeyValuePair <bool, string>(false, "This user does not exist."));
}
if (!drive.DrivesPassengers.Any(d => d.PassengerId == userId))
{
return(new KeyValuePair <bool, string>(false, "You don't have a reservation for that drive."));
}
DrivesPassengers itemToRemove = drive.DrivesPassengers
.FirstOrDefault(x => x.DriveId == driveId && x.PassengerId == userId);
drive.DrivesPassengers.Remove(itemToRemove);
this.drives.UpdateAsync(drive);
return(new KeyValuePair <bool, string>(true, "Your registration has been canceled."));
}
public KeyValuePair <bool, string> ReserveSeat(int driveId, int userId)
{
Require.ThatIntIsPositive(driveId);
Require.ThatIntIsPositive(userId);
Drive drive = this.drives.GetByIdQueryable(driveId)
.Include(d => d.DrivesPassengers)
.FirstOrDefault();
if (drive == null)
{
return(new KeyValuePair <bool, string>(false, "This drive does not exist."));
}
if (!this.usersService.CheckIfUserExists(userId))
{
return(new KeyValuePair <bool, string>(false, "This user does not exist."));
}
if (drive.DrivesPassengers.Any(x => x.PassengerId == userId))
{
return(new KeyValuePair <bool, string>(false, "You already have a reservation for the drive."));
}
if (drive.DrivesPassengers.Count == drive.DeclaredSeats)
{
return(new KeyValuePair <bool, string>(false, "All seats for the drive are taken."));
}
DrivesPassengers pair = new DrivesPassengers()
{
DriveId = driveId,
PassengerId = userId
};
drive.DrivesPassengers.Add(pair);
this.drives.UpdateAsync(drive);
return(new KeyValuePair <bool, string>(true, "You made a reservation! Have a safe drive."));
}