public QueuedTickets AddFrom(
TicketId ticketId,
int ticketNumber,
DateTime ticketPrintingTimestamp) => new QueuedTickets(new List <Ticket>(Tickets)
{
new Ticket(ticketId, ticketNumber, ticketPrintingTimestamp)
});
public Result <CustomerQueue> AddTicket(
TicketId ticketId,
int ticketNumber) =>
QueuedTickets.CanAddFrom(ticketId, ticketNumber)
.OnSuccess(() => ApplyChange(new TicketAdded(Id, ticketId, ticketNumber)))
.OnSuccess(_ => AvailableCounters.MapFirstFree(counter => ApplyChange(new CustomerTaken(Id, counter.Id, ticketId))))
.ToTypedResult(this);
public Ticket GetWithId(TicketId ticketId) => Tickets.First(t => t.Id == ticketId);
public QueuedTickets RemoveWithId(TicketId ticketId)
{
return(new QueuedTickets(new List <Ticket>(Tickets
.Where(t => t.Id != ticketId))));
}
private Result Validate(TicketId ticketId) => Tickets.ContainsEntityWith(ticketId).OnBoth(
() => Fail <Ticket>($"{nameof(Ticket)} with Id {ticketId} already exist."),
Ok);
public Result CanAddFrom(TicketId ticketId, int ticketNumber) => Validate(ticketId) .OnSuccess(() => Validate(ticketNumber));