wip on loading rooms in session

src/session.js

@@ -14,12 +14,21 @@ export default class Session {
 	}
 
 	async load() {
-		const txn = this._storage.readTxn([this._storage.storeNames.session]);
+		const txn = this._storage.readTxn([
+			this._storage.storeNames.session,
+			this._storage.storeNames.roomSummary,
+		]);
+		// restore session object
 		this._session = await txn.session.get();
 		if (!this._session) {
 			throw new Error("session store is empty");
 		}
 		// load rooms
+		const rooms = await txn.roomSummary.getAll();
+		await Promise.all(rooms.map(roomSummary => {
+			const room = this.createRoom(room.roomId);
+			return room.load(roomSummary);
+		}));
 	}
 
 	getRoom(roomId) {

src/storage/idb/query-target.js

@@ -29,7 +29,7 @@ export default class QueryTarget {
 		return this._selectWhile(range, predicate, "prev");
 	}
 
-	selectAll(range) {
+	selectAll(range, direction) {
 		const cursor = this._target.openCursor(range, direction);
 		const results = [];
 		return iterateCursor(cursor, (value) => {

src/storage/idb/stores/summary.js

@@ -0,0 +1,20 @@
+/**
+store contains:
+	roomId
+	name
+	lastMessage
+	unreadCount
+	mentionCount
+	isEncrypted
+	isDirectMessage
+	membership
+*/
+export default class RoomSummaryStore {
+	constructor(summaryStore) {
+		this._summaryStore = summaryStore;
+	}
+
+	getAll() {
+		return this._summaryStore.selectAll();
+	}
+}