public async void NewReservation(Movie movie, OrderReservation order)
{
var reservation = await order
.ValidateReservation()
.NewSeatReservation();
this.OnNewReservation(movie, reservation);
}
public static OrderReservation ValidateReservation(this OrderReservation order)
{
if (order.Movie.Reservations.Any(x => x.SeatNumber == order.SeatNumber))
{
throw new InvalidOperationException("reservation is not possible");
}
return(order.AsValidated());
}
public async static Task <Reservation> NewSeatReservation(this OrderReservation order)
{
if (!order.IsReservationValidated)
{
throw new InvalidOperationException("order is not validated");
}
await Task.Run(() => {
Console.WriteLine("Das ist ein ganz langer Task...");
});
return(new Reservation
{
SeatNumber = order.SeatNumber,
Name = order.Customer.Name
});
}