feat(nbstore): add blob sync storage (#10752)

packages/common/nbstore/src/impls/idb/blob-sync.ts

@@ -0,0 +1,36 @@
+import { share } from '../../connection';
+import { BlobSyncStorageBase } from '../../storage';
+import { IDBConnection, type IDBConnectionOptions } from './db';
+
+export class IndexedDBBlobSyncStorage extends BlobSyncStorageBase {
+  static readonly identifier = 'IndexedDBBlobSyncStorage';
+
+  readonly connection = share(new IDBConnection(this.options));
+
+  constructor(private readonly options: IDBConnectionOptions) {
+    super();
+  }
+
+  get db() {
+    return this.connection;
+  }
+
+  async setBlobUploadedAt(
+    peer: string,
+    blobId: string,
+    uploadedAt: Date | null
+  ): Promise<void> {
+    const trx = this.db.inner.db.transaction('blobSync', 'readwrite');
+    await trx.store.put({
+      peer,
+      key: blobId,
+      uploadedAt,
+    });
+  }
+
+  async getBlobUploadedAt(peer: string, blobId: string): Promise<Date | null> {
+    const trx = this.db.inner.db.transaction('blobSync', 'readonly');
+    const record = await trx.store.get([peer, blobId]);
+    return record?.uploadedAt ?? null;
+  }
+}

packages/common/nbstore/src/impls/idb/blob.ts

@@ -8,6 +8,7 @@ import { IDBConnection, type IDBConnectionOptions } from './db';
 
 export class IndexedDBBlobStorage extends BlobStorageBase {
   static readonly identifier = 'IndexedDBBlobStorage';
+  override readonly isReadonly = false;
 
   readonly connection = share(new IDBConnection(this.options));
 

packages/common/nbstore/src/impls/idb/index.ts

@@ -1,9 +1,11 @@
 import type { StorageConstructor } from '..';
 import { IndexedDBBlobStorage } from './blob';
+import { IndexedDBBlobSyncStorage } from './blob-sync';
 import { IndexedDBDocStorage } from './doc';
 import { IndexedDBDocSyncStorage } from './doc-sync';
 
 export * from './blob';
+export * from './blob-sync';
 export * from './doc';
 export * from './doc-sync';
 
@@ -11,4 +13,5 @@ export const idbStorages = [
   IndexedDBDocStorage,
   IndexedDBBlobStorage,
   IndexedDBDocSyncStorage,
+  IndexedDBBlobSyncStorage,
 ] satisfies StorageConstructor[];

packages/common/nbstore/src/impls/idb/schema.ts

@@ -36,6 +36,11 @@ Table(PeerClocks)
 | peer | docId |   clock   |  pushed   |
 |------|-------|-----------|-----------|
 | str  |  str  |   Date    |   Date    |
+
+Table(BlobSync)
+| peer | key | uploadedAt |
+|------|-----|------------|
+| str  | str |   Date     |
  */
 export interface DocStorageSchema extends DBSchema {
   snapshots: {
@@ -81,6 +86,17 @@ export interface DocStorageSchema extends DBSchema {
       deletedAt: Date | null;
     };
   };
+  blobSync: {
+    key: [string, string];
+    value: {
+      peer: string;
+      key: string;
+      uploadedAt: Date | null;
+    };
+    indexes: {
+      peer: string;
+    };
+  };
   blobData: {
     key: string;
     value: {
@@ -175,11 +191,19 @@ const init: Migrate = db => {
     autoIncrement: false,
   });
 };
+const initBlobSync: Migrate = db => {
+  const blobSync = db.createObjectStore('blobSync', {
+    keyPath: ['peer', 'key'],
+    autoIncrement: false,
+  });
+
+  blobSync.createIndex('peer', 'peer', { unique: false });
+};
 // END REGION
 
 // 1. all schema changed should be put in migrations
 // 2. order matters
-const migrations: Migrate[] = [init];
+const migrations: Migrate[] = [init, initBlobSync];
 
 export const migrator = {
   version: migrations.length,

packages/common/nbstore/src/impls/idb/v1/blob.ts

@@ -7,6 +7,7 @@ import { BlobIDBConnection, type BlobIDBConnectionOptions } from './db';
  */
 export class IndexedDBV1BlobStorage extends BlobStorageBase {
   static readonly identifier = 'IndexedDBV1BlobStorage';
+  override readonly isReadonly = true;
 
   constructor(private readonly options: BlobIDBConnectionOptions) {
     super();