Basic Userdata storage

lib/backend/storage.dart

@@ -0,0 +1,38 @@
+import 'package:localstore/localstore.dart';
+import './resolve_url.dart';
+
+class LoginDetails {
+  const LoginDetails(
+    {required this.username, required this.password, required this.server});
+
+  final String username;
+  final String password;
+  final OutbagServer server;
+
+  void toDisk() async {
+    final db = Localstore.instance;
+    await db
+    .collection('meta')
+    .doc('auth')
+    .set({'username': username, 'password': password});
+    server.toDisk();
+  }
+
+  static Future<LoginDetails> fromDisk() async {
+    final db = Localstore.instance;
+    final data = await db.collection('meta').doc('auth').get();
+    final server = await OutbagServer.fromDisk();
+
+    return LoginDetails(
+      username: data?['username'],
+      password: data?['password'],
+      server: server,
+    );
+  }
+}
+
+// obtain room list
+Future<Map<String, dynamic>?> getRooms() async {
+  final db = Localstore.instance;
+  return await db.collection('rooms').get();
+}