public static IEnumerable <object> Handle(ReservationState _, RequestTickets command)
{
var reservationId = Guid.NewGuid();
var requestedOn = DateTime.UtcNow;
yield return(new TicketsRequested(reservationId, command.TicketId, command.QuantityRequested, requestedOn));
}
public static ReservationState Apply(ReservationState state, IEnumerable <object> events)
{
foreach (var e in events)
{
Apply(state, e);
}
return(state);
}
private static void Apply(ReservationState state, object @event)
{
switch (@event)
{
case TicketsRequested e:
state.Id = e.ReservationId;
state.Status = ReservationStatus.Requested;
state.TicketId = e.TicketId;
state.QuantityRequested = e.QuantityRequested;
break;
case ReservationRejected _:
state.Status = ReservationStatus.Rejected;
break;
case ReservationConfirmed e:
state.Status = ReservationStatus.Confirmed;
state.QuantityReserved = e.QuantityReserved;
break;
}
}
public static IEnumerable <object> Handle(ReservationState state, RejectReservation _)
{
var rejectedOn = DateTime.UtcNow;
yield return(new ReservationRejected(state.Id, state.TicketId, state.QuantityRequested, rejectedOn));
}
public static IEnumerable <object> Handle(ReservationState state, ConfirmReservation _)
{
var confirmedOn = DateTime.UtcNow;
yield return(new ReservationConfirmed(state.Id, state.TicketId, state.QuantityReserved, confirmedOn));
}
