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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace LambdaTwelve\OneRecord\Server\Spi; |
| 6 | |
| 7 | use LambdaTwelve\OneRecord\Api\ActionRequest; |
| 8 | use LambdaTwelve\OneRecord\Api\ActionRequestType; |
| 9 | use LambdaTwelve\OneRecord\Api\RequestStatus; |
| 10 | use LambdaTwelve\OneRecord\Rdf\Iri; |
| 11 | |
| 12 | /** |
| 13 | * Action requests of every type. They are never deleted: revoked and |
| 14 | * rejected ones stay readable and stay in the audit trail, as the spec requires. |
| 15 | */ |
| 16 | interface ActionRequestStore |
| 17 | { |
| 18 | /** |
| 19 | * Stores a new request. The server calls this exactly once per request and |
| 20 | * moves it on with transition() from then on. A later save() under the same |
| 21 | * IRI may replace what transition() changes (status, status history, |
| 22 | * errors); the type, payload, the objects and topic the request concerns, |
| 23 | * the requester and the request time are fixed by the first save, the SDK |
| 24 | * never changes them afterwards, and a store may rely on that for the |
| 25 | * query columns it keeps next to the document. |
| 26 | */ |
| 27 | public function save(ActionRequest $request): void; |
| 28 | |
| 29 | /** |
| 30 | * Replaces the stored request only if its current status is $expectedCurrent: |
| 31 | * compare-and-set, so two workers deciding the same request cannot both win |
| 32 | * and a stale snapshot cannot overwrite a terminal state. |
| 33 | * |
| 34 | * @throws StoreException with kind STATUS_CONFLICT when the stored status differs, NOT_FOUND when absent |
| 35 | */ |
| 36 | public function transition(ActionRequest $request, RequestStatus $expectedCurrent): void; |
| 37 | |
| 38 | public function get(Iri $iri): ?ActionRequest; |
| 39 | |
| 40 | /** |
| 41 | * Change and verification requests about one object, oldest first: its audit trail. |
| 42 | * |
| 43 | * @return list<ActionRequest> |
| 44 | */ |
| 45 | public function auditTrail(Iri $logisticsObject, AuditTrailQuery $query): array; |
| 46 | |
| 47 | /** |
| 48 | * Pending change requests about one object, for rejecting the others |
| 49 | * once one is accepted. |
| 50 | * |
| 51 | * @return list<ActionRequest> |
| 52 | */ |
| 53 | public function pendingChanges(Iri $logisticsObject): array; |
| 54 | |
| 55 | /** |
| 56 | * Every request of a type in the accepted state: the active subscriptions |
| 57 | * and delegations. A SubscriptionStore built over this store derives its |
| 58 | * subscribers from here, whatever either store is implemented with. |
| 59 | * |
| 60 | * @return list<ActionRequest> |
| 61 | */ |
| 62 | public function accepted(ActionRequestType $type): array; |
| 63 | } |