Niek Otten
edffbb4575
Add an interrupting message boundary event (RegistratieIngetrokken) on the Beoordelen task that ends the process; the Workflow Client delivers the message to the task's execution, and the withdraw handler triggers it best-effort after the domain transition (ADR-0014). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
45 lines
2.2 KiB
C#
45 lines
2.2 KiB
C#
using Big.Domain;
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namespace Big.Application;
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/// <summary>A zorgprofessional's request to withdraw their own registration ("trek aanvraag in").</summary>
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public sealed record WithdrawRegistrationCommand(RegistrationId RegistrationId);
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/// <summary>
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/// The withdrawal use case (S-11): a zorgprofessional pulls a still-open registration back. It
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/// advances the aggregate to INGETROKKEN, persists it, then cancels the running registratie process
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/// by delivering the withdrawal message to its open <c>Beoordelen</c> task (ADR-0014), so the case
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/// leaves the behandelaar's werkbak. Idempotent — a repeated or redelivered withdrawal of an
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/// already-withdrawn registration is a no-op (not persisted or cancelled again). Cancelling is
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/// best-effort: if no <c>Beoordelen</c> task is open (the process has not parked there yet, or has
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/// already ended) the withdrawal still stands — mirroring <see cref="BeoordeelRegistratie"/>.
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/// </summary>
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public sealed class WithdrawRegistration(IRegistrationStore store, IUserTaskClient tasks)
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{
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public async Task HandleAsync(WithdrawRegistrationCommand command, CancellationToken ct = default)
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{
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ArgumentNullException.ThrowIfNull(command);
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var registration = await store.GetAsync(command.RegistrationId, ct)
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?? throw new InvalidOperationException($"No registration {command.RegistrationId} to withdraw.");
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// A repeated withdrawal is a no-op: don't persist or cancel the already-withdrawn one again.
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if (registration.Status == RegistrationStatus.Ingetrokken)
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return;
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registration.Withdraw();
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await store.SaveAsync(registration, ct);
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await CancelWorkflowTaskAsync(command.RegistrationId, ct);
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}
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// Cancel the workflow: deliver the withdrawal message to the open Beoordelen task's execution so
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// the process's boundary event ends it. If none is open the withdrawal still stands.
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private async Task CancelWorkflowTaskAsync(RegistrationId registrationId, CancellationToken ct)
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{
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var open = await tasks.GetOpenBeoordelingenAsync(ct);
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var task = open.FirstOrDefault(t => t.RegistrationId == registrationId);
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if (task is not null)
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await tasks.WithdrawBeoordelingAsync(task.ExecutionId, ct);
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}
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}
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