From cfd38211a22c2e89acec4559f2e54533b84f4fbe Mon Sep 17 00:00:00 2001
From: Thatsaphorn Atchariyaphap <thatsaphorn@outlook.de>
Date: Mon, 22 Sep 2025 19:26:39 +0200
Subject: [PATCH] Convert `registerDefaultServices` to `async` and update
 service initialization

---
 finlog_app/app/lib/main.dart          | 2 +-
 finlog_app/fluttery/lib/fluttery.dart | 7 +++----
 2 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/finlog_app/app/lib/main.dart b/finlog_app/app/lib/main.dart
index 6ccb02f..9ee6bc6 100644
--- a/finlog_app/app/lib/main.dart
+++ b/finlog_app/app/lib/main.dart
@@ -8,7 +8,7 @@ Future<void> main() async {
   WidgetsFlutterBinding.ensureInitialized();
 
   // any services
-  App.registerDefaultServices();
+  await App.registerDefaultServices();
 
   final logger = App.service<Logger>();
   logger.debug("[MAIN] Registered all default services");
diff --git a/finlog_app/fluttery/lib/fluttery.dart b/finlog_app/fluttery/lib/fluttery.dart
index be6a583..cf38d0e 100644
--- a/finlog_app/fluttery/lib/fluttery.dart
+++ b/finlog_app/fluttery/lib/fluttery.dart
@@ -30,12 +30,11 @@ class App {
   }
 
   /// Registers the default services required by the application.
-  static void registerDefaultServices() {
+  static Future<void> registerDefaultServices() async {
     registerService<Logger>(() => LoggerImpl());
 
-    SharedPreferences.getInstance().then((instance) {
-      registerService<Preferences>(() => PreferencesImpl(instance: instance));
-    });
+    final prefs = await SharedPreferences.getInstance();
+    registerService<Preferences>(() => PreferencesImpl(instance: prefs));
 
     registerService<SecureStorage>(() => SecureStorageImpl());
   }