feat(nbstore): add awareness storage&sync&frontend (#9016)

2026-08-03 02:20:19 +08:00 · 2024-12-17 04:37:15 +00:00
parent 36ac79351f
commit ffa0231cf5
21 changed files with 572 additions and 26 deletions
@@ -0,0 +1,30 @@
+import type {
+  AwarenessRecord,
+  AwarenessStorage,
+} from '../../storage/awareness';
+
+export class AwarenessSync {
+  constructor(
+    readonly local: AwarenessStorage,
+    readonly remotes: AwarenessStorage[]
+  ) {}
+
+  async update(record: AwarenessRecord, origin?: string) {
+    await Promise.all(
+      [this.local, ...this.remotes].map(peer => peer.update(record, origin))
+    );
+  }
+
+  subscribeUpdate(
+    id: string,
+    onUpdate: (update: AwarenessRecord, origin?: string) => void,
+    onCollect: () => AwarenessRecord
+  ): () => void {
+    const unsubscribes = [this.local, ...this.remotes].map(peer =>
+      peer.subscribeUpdate(id, onUpdate, onCollect)
+    );
+    return () => {
+      unsubscribes.forEach(unsubscribe => unsubscribe());
+    };
+  }
+}