Sylvain Duchesne
7c233df5c0
Phase A du refactor des lectures. Surface la barrière de sync interne
(open-repo `getSyncState`) dans une API useQuery-shaped, en anticipation de la
mise à jour prévue de useShape par NextGraph — distingue nativement « sync en
cours » de « synchronisé mais vide ».
`watchShape<T>(shapeType, scope): { getSnapshot(): ShapeQuery<T>, subscribe(cb),
refetch() }` avec `ShapeQuery = { data, isPending, isSuccess, isError, error }`.
OBSERVABLE (pas de dépendance React — l'app câblera useSyncExternalStore en
phase B) ; getSnapshot rend une référence stable.
- Scope LOGIQUE (public/protected/private) résolu au wallet virtuel :
listMyEntityDocs(getCurrentUser, scope) + découverte foldée pour public.
- isPending tant que la barrière n'est pas atteinte / 1er readUnion non rendu ;
isSuccess après ; timed-out → isSuccess (best-effort, pas isError).
- Réactif SANS polling : subscribeDoc sur les docs + le doc d'index de scope
(+ index découverte) → re-read/re-résolution au push ; souscriptions idempotentes.
- Générique : aucune logique domaine Festipod dans le lib ; filtre par la shape
SHEX (rdf:type). Pas de double filtre cap.
gate : tsc 0 ; bun test 120 (+4 : pending→success, synced-vide, réactif, timed-out) ;
test:e2e 42 passed (+scénario broker réel : isPending au 1er snapshot → isSuccess
avec données, scope vide → isSuccess data:[]).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
@ng-eventually/client
Two entry points — the data-plane is SDK-identical, the polyfill bootstrap is separate:
| Import | Surface |
|---|---|
@ng-eventually/client |
The same signature as the SDK — ng, useShape, inbox (+ types). A drop-in for @ng-org/web / @ng-org/orm; as NextGraph matures it resolves to the real SDK (build alias removed) with no code change. |
@ng-eventually/client/polyfill |
The only non-SDK surface — configure, setCurrentUser, and capability helpers (getCaps, grantRead, canRead/canWrite). It falls away as NextGraph matures. |
// bootstrap (the only non-SDK call) — inject the real SDK
import { configure } from "@ng-eventually/client/polyfill";
configure({ ng: realNg, useShape: realUseShape, sharedWallet, currentUser });
// from here on, a pure SDK surface:
import { ng, useShape, inbox } from "@ng-eventually/client";
await ng.doc_create(/* … */);
const set = useShape(MyShape, scope); // filtered to what the identity may read
await inbox.post(targetInbox, ref); // deposit (anticipated SDK API)
Principle — the polyfill compensates, it never extends
The polyfill's ONLY reason to exist is to bridge a NextGraph implementation gap or a bug. Every non-SDK surface must map to a capability NextGraph will provide natively, and must fall away at that point. The polyfill MUST NOT add functionality of its own — no bespoke features, no observability/tooling, no convenience API that isn't strictly "NextGraph will do this natively later." The test for any proposed addition: does it compensate a real, exhibited NextGraph gap or bug? If not, it does not belong here — build it in the consumer application, not in the polyfill. Corollary: a compensation whose gap is not actually exhibited on the target broker is dead weight, not defensive code — it should be removed, not kept "just in case."
What the polyfill adds on top of the real SDK (each emulated for now, native as NextGraph matures):
- Shared-wallet identity (one wallet for everyone; the current identity id is relayed to the SDK).
- Capability enforcement — a read filter + write guard over emulated grants attached to documents; the app declares a document's read policy and issues directed read grants.
- Anticipated methods (inbox
post, capability ops) with their future-SDK shapes, emulated for now.
Generic: no application domain. The consumer application injects its shapes and performs the acts of granting access. The relationship concept ("who is connected to whom") is the consumer application's own — the client exposes only directed per-document read grants.