public async Task <TicketDTO> Handle(CreateTicketCommand message, CancellationToken cancellationToken)
{
var seat = _seatingRepository.GetAsync(message.SeatId);
if (seat == null)
{
throw new ArgumentNullException(nameof(seat));
}
if (seat.Result.IsOccupied)
{
throw new TicketingDomainException("Seat is already occupied");
}
var customer = _customerRepository.GetAsync(message.SeatId);
if (seat == null)
{
throw new ArgumentNullException(nameof(seat));
}
var ticket = new Ticket(message.SeatId, message.CustomerId);
Log.Information($"Creating Ticket: {ticket}");
_ticketRepository.Add(ticket);
await _ticketRepository.UnitOfWork.SaveEntitiesAsync(cancellationToken);
var result = new TicketDTO()
{
TicketId = ticket.Id,
CreatedOn = Timestamp.FromDateTime(ticket.CreatedOn)
};
return(await Task.FromResult(result));
}
public async Task Handle(TicketCreatedDomainEvent ticketCreatedEvent, CancellationToken cancellationToken)
{
Log.Information($"TicketCreatedDomainEvent happened...");
var seatToUpdate = await _seatingRepository.GetAsync(ticketCreatedEvent.SeatId);
if (seatToUpdate == null)
{
Log.Error($"Error updating seat {ticketCreatedEvent.SeatId}; seat does not exist");
}
seatToUpdate?.SetIsOccupied(true);
await _seatingRepository.UnitOfWork.SaveEntitiesAsync(cancellationToken);
}