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register-referentie/services/domain/Big.Application/SubmitRegistration.cs
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feat(workflow): diploma-eligibility DMN routes foreign diplomas via CBGV-advies (S-13, closes #14) (#101)
## What & why

S-13: a diploma's origin decides its route. A **DMN** (`diploma-eligibility`) is evaluated inline by
the registratie process as a **`businessRuleTask`**; an exclusive gateway routes a **foreign**
(Buitenlands) diploma through a new **CBGVAdvies** user task before `Beoordelen`, a **domestic** one
straight there (PRD flow 4). The domain's only new job is carrying the diploma origin and passing it
as a process start variable.

Chose **Option B (DMN in the BPMN)** over the issue's literal "evaluated by the Domain Service via
Workflow Client" wording — keeps the decision a first-class workflow artefact and §8.2 clean.
Rationale in **ADR-0016** (proposal #100); noted on this issue.

Closes #14

## Definition of Done

- [x] Linked Gitea issue (above).
- [x] Failing test committed before the implementation.
- [x] Implementation makes the test pass.
- [x] Conventional Commits referencing the issue (`refs #14`).
- [ ] CI green — all Gitea Actions jobs.
- [x] `docker compose up` from a fresh clone reaches green health checks within 3 minutes (additive; DMN deployed by flowable-init).
- [x] Docs updated (ADR-0016, demo note).
- [x] ADR added (`docs/architecture/adr-0016-diploma-eligibility-dmn.md`).
- [x] Demo note in `docs/demo-script.md`.

## How it was built (TDD)

- **Domain**: `DiplomaOrigin` on the aggregate + submit command; threaded through the process-start port so the Workflow Client emits a `diplomaOrigin` start variable. Red → green.
- **DMN + BPMN**: `workflows/diploma-eligibility.dmn` (origin → route); `businessRuleTask` + exclusive gateway + `CBGVAdvies` user task in `registratie.bpmn`; DMN deployed to Flowable's DMN engine by `flowable-init`.
- **Both paths**: `Een diploma op herkomst routeren` acceptance scenarios (origin carried into the process) + unit tests; verify-domain drives a foreign registration through CBGVAdvies→Beoordelen and the domestic one straight to Beoordelen — exercising both DMN branches live.

## Notes for reviewers

- Deviation from the issue's Option-A wording is deliberate and recorded (ADR-0016); the outcome is unchanged.
- The self-service eIDAS→foreign wiring is out of scope here (this slice is area:domain + area:workflow); the domain submit accepts an optional `diplomaOrigin` so the foreign path is drivable.
- Local green: domain unit 109, acceptance 15, `dotnet format`, Release build (0 errors), **domain mutation 95.39%** (break 90). The DMN/`businessRuleTask` REST wiring is CI-verified on verify-stack (no local full-stack run here).

Reviewed-on: #101
2026-07-20 07:26:52 +00:00

37 lines
1.8 KiB
C#

using Big.Domain;
namespace Big.Application;
/// <summary>A zorgprofessional's request to register, in domain language. No ZGW concepts. The
/// diploma origin defaults to domestic (the DigiD path); a foreign (eIDAS) submission sets it to
/// <see cref="DiplomaOrigin.Buitenlands"/> so the workflow's DMN routes it through CBGV-advies (S-13).</summary>
public sealed record SubmitRegistrationCommand(string Bsn, DiplomaOrigin DiplomaOrigin = DiplomaOrigin.Binnenlands);
/// <summary>
/// The submit use case: create the <see cref="Registration"/> aggregate (INGEDIEND), persist it,
/// then start the registratie workflow process and record its instance id. It returns as soon as
/// the process is started — opening the zaak happens later, off the request path, in the external-task
/// worker (ADR-0009). Persisting <em>before</em> starting the process closes the race where the worker
/// acquires the OpenZaakAanmaken job before the aggregate it correlates to exists.
/// </summary>
public sealed class SubmitRegistration(IRegistrationStore store, IWorkflowClient workflow)
{
public async Task<RegistrationId> HandleAsync(SubmitRegistrationCommand command, CancellationToken ct = default)
{
ArgumentNullException.ThrowIfNull(command);
var registration = Registration.Submit(command.Bsn, command.DiplomaOrigin);
// Persist before starting the process so the worker can correlate the OpenZaakAanmaken
// job back to an aggregate that already exists (ADR-0009).
await store.SaveAsync(registration, ct);
var processInstanceId = await workflow.StartRegistrationProcessAsync(
registration.Id, registration.DiplomaOrigin, ct);
registration.RecordProcessStarted(processInstanceId);
await store.SaveAsync(registration, ct);
return registration.Id;
}
}