Refresh cached training catalog safely

mobile/lib/screens/training_screens.dart

@@ -16,28 +16,47 @@ class TrainingLibraryScreen extends StatefulWidget {
 }
 
 class _TrainingLibraryScreenState extends State<TrainingLibraryScreen> {
-  late Future<TrainingCatalogResult> _plans;
+  final TrainingPlanService _service = Get.find<TrainingPlanService>();
+  TrainingCatalogResult? _result;
+  bool _loading = true;
 
   @override
   void initState() {
     super.initState();
-    _plans = Get.find<TrainingPlanService>().fetchPlans();
+    _load();
   }
 
-  void _reload() => setState(() {
+  Future<void> _load() async {
-        _plans = Get.find<TrainingPlanService>().fetchPlans(refresh: true);
+    final cached = await _service.readCachedPlans();
+    if (!mounted) return;
+    if (cached.isNotEmpty) {
+      setState(() {
+        _result = TrainingCatalogResult(plans: cached, fromCache: true);
+        _loading = false;
       });
+    }
+    final result = await _service.fetchPlans(refresh: true);
+    if (mounted) {
+      setState(() {
+        _result = result;
+        _loading = false;
+      });
+    }
+  }
+
+  void _reload() {
+    setState(() => _loading = true);
+    _load();
+  }
 
   @override
   Widget build(BuildContext context) => Scaffold(
         appBar: AppBar(title: const Text('خطط التمرين')),
-        body: FutureBuilder<TrainingCatalogResult>(
+        body: Builder(builder: (context) {
-          future: _plans,
+          final result = _result;
-          builder: (context, snapshot) {
+          if (_loading && result == null) {
-            if (snapshot.connectionState == ConnectionState.waiting) {
             return const Center(child: CircularProgressIndicator());
           }
-            final result = snapshot.data;
           if (result == null) {
             return _CatalogMessage(
               message: 'تعذر تحميل مكتبة التمارين.',
@@ -55,8 +74,7 @@ class _TrainingLibraryScreenState extends State<TrainingLibraryScreen> {
             padding: const EdgeInsets.all(18),
             children: [
               if (result.fromCache)
-                  const _CacheNotice(
+                const _CacheNotice(message: 'نعرض نسخة محفوظة على هذا الجهاز.'),
-                      message: 'نعرض نسخة محفوظة على هذا الجهاز.'),
               if (result.message != null)
                 Padding(
                   padding: const EdgeInsets.only(bottom: 12),
@@ -71,8 +89,7 @@ class _TrainingLibraryScreenState extends State<TrainingLibraryScreen> {
                 ),
             ],
           );
-          },
+        }),
-        ),
       );
 }
 
@@ -89,7 +106,7 @@ class _TrainingPlanSpotlightState extends State<TrainingPlanSpotlight> {
   @override
   void initState() {
     super.initState();
-    _plans = Get.find<TrainingPlanService>().fetchPlans();
+    _plans = Get.find<TrainingPlanService>().fetchPlans(refresh: true);
   }
 
   @override
@@ -503,17 +520,17 @@ String _levelLabel(String level) => switch (level) {
     };
 
 String _goalLabel(String goal) => switch (goal) {
-      'weight_loss' => 'خفض الوزن',
+      'weight_management' => 'إدارة الوزن',
       'general_fitness' => 'لياقة عامة',
-      'strength' => 'قوة',
       'mobility' => 'مرونة وحركة',
+      'endurance' => 'التحمل',
       _ => goal,
     };
 
 String _intensityLabel(String intensity) => switch (intensity) {
       'easy' => 'خفيفة',
       'moderate' => 'متوسطة',
-      'hard' => 'عالية',
+      'vigorous' => 'عالية',
       _ => intensity,
     };
 

mobile/lib/services/training_plan_service.dart

@@ -15,12 +15,14 @@ class TrainingPlanService {
   final AuthService _auth;
   final http.Client _client;
 
+  Future<List<TrainingPlan>> readCachedPlans() async {
+    final prefs = await SharedPreferences.getInstance();
+    return _decodeCache(prefs.getString(_cacheKey));
+  }
+
   Future<TrainingCatalogResult> fetchPlans({bool refresh = false}) async {
     final prefs = await SharedPreferences.getInstance();
     final cached = _decodeCache(prefs.getString(_cacheKey));
-    if (!refresh && cached.isNotEmpty) {
-      return TrainingCatalogResult(plans: cached, fromCache: true);
-    }
     if (!_auth.isApiConfigured) {
       return TrainingCatalogResult(
         plans: cached,
@@ -46,6 +48,15 @@ class TrainingPlanService {
           .map(TrainingPlan.fromJson)
           .where((plan) => plan.uuid.isNotEmpty)
           .toList(growable: false);
+      // An empty catalog can be an unpublished/temporarily incomplete response.
+      // Keep the last known good catalog rather than erasing offline content.
+      if (plans.isEmpty && cached.isNotEmpty) {
+        return TrainingCatalogResult(
+          plans: cached,
+          fromCache: true,
+          message: 'لا توجد خطط منشورة حاليًا؛ نعرض آخر نسخة محفوظة.',
+        );
+      }
       await prefs.setString(
         _cacheKey,
         jsonEncode(plans.map(_toCacheJson).toList(growable: false)),