feat: adds auto sync feature and fixes UI a bit up

lib/providers/simple_sync_provider.dart

@@ -1,7 +1,8 @@
 import 'package:flutter/foundation.dart';
-import 'package:flutter/material.dart';
 
 import '../services/database_sync_service.dart';
+import '../services/auto_sync_service.dart';
+import 'settings_provider.dart';
 
 class SimpleSyncProvider with ChangeNotifier {
   final DatabaseSyncService _syncService = DatabaseSyncService();
@@ -9,6 +10,12 @@ class SimpleSyncProvider with ChangeNotifier {
   // Callback for UI refresh after sync
   VoidCallback? _onSyncCompleteCallback;
   
+  // Auto-sync service
+  AutoSyncService? _autoSyncService;
+  
+  // Track if current sync is auto-triggered
+  bool _isAutoSync = false;
+  
   // Getters
   SyncStatus get status => _syncService.status;
   String? get lastError => _syncService.lastError;
@@ -17,6 +24,14 @@ class SimpleSyncProvider with ChangeNotifier {
   bool get isSyncing => status == SyncStatus.downloading || 
                         status == SyncStatus.merging || 
                         status == SyncStatus.uploading;
+  bool get isAutoSync => _isAutoSync;
+  AutoSyncService? get autoSyncService => _autoSyncService;
+  
+  // Auto-sync error handling getters
+  bool get isAutoSyncDisabledDueToErrors => _autoSyncService?.isAutoDisabledDueToErrors ?? false;
+  int get autoSyncConsecutiveFailures => _autoSyncService?.consecutiveFailures ?? 0;
+  String? get autoSyncLastError => _autoSyncService?.lastErrorMessage;
+  bool get hasAutoSyncScheduledRetry => _autoSyncService?.hasScheduledRetry ?? false;
   
   // Configuration getters
   String? get serverUrl => _syncService.serverUrl;
@@ -43,6 +58,23 @@ class SimpleSyncProvider with ChangeNotifier {
     _onSyncCompleteCallback = callback;
   }
 
+  /// Initialize auto-sync service with settings provider
+  void initializeAutoSync(SettingsProvider settingsProvider) {
+    _autoSyncService = AutoSyncService(
+      syncProvider: this,
+      settingsProvider: settingsProvider,
+    );
+    
+    if (kDebugMode) {
+      print('SimpleSyncProvider: Auto-sync service initialized');
+    }
+  }
+
+  /// Triggers auto-sync if enabled and configured
+  void triggerAutoSyncIfEnabled() {
+    _autoSyncService?.triggerAutoSync();
+  }
+
   Future<void> _loadConfiguration() async {
     await _syncService.loadSavedConfiguration();
     notifyListeners(); // Notify UI that configuration might be available
@@ -67,11 +99,14 @@ class SimpleSyncProvider with ChangeNotifier {
     return await _syncService.testConnection();
   }
 
-  Future<void> syncDatabase() async {
+  Future<void> syncDatabase({bool isAutoSync = false}) async {
     if (!isConfigured) {
       throw Exception('Sync not configured');
     }
     
+    _isAutoSync = isAutoSync;
+    notifyListeners();
+    
     try {
       await _syncService.syncDatabase();
     } catch (e) {
@@ -79,6 +114,9 @@ class SimpleSyncProvider with ChangeNotifier {
         print('SupplementsLog: Sync failed in provider: $e');
       }
       rethrow;
+    } finally {
+      _isAutoSync = false;
+      notifyListeners();
     }
   }
 
@@ -87,20 +125,46 @@ class SimpleSyncProvider with ChangeNotifier {
     notifyListeners();
   }
 
+  /// Resets auto-sync error state and re-enables auto-sync if it was disabled
+  void resetAutoSyncErrors() {
+    _autoSyncService?.resetErrorState();
+    notifyListeners();
+  }
+
   String getStatusText() {
+    final syncType = _isAutoSync ? 'Auto-sync' : 'Sync';
+    
+    // Check for auto-sync specific errors first
+    if (isAutoSyncDisabledDueToErrors) {
+      return 'Auto-sync disabled due to repeated failures. ${autoSyncLastError ?? 'Check sync settings.'}';
+    }
+    
     switch (status) {
       case SyncStatus.idle:
+        if (hasAutoSyncScheduledRetry) {
+          return 'Auto-sync will retry shortly...';
+        }
         return 'Ready to sync';
       case SyncStatus.downloading:
-        return 'Downloading remote database...';
+        return '$syncType: Downloading remote database...';
       case SyncStatus.merging:
-        return 'Merging databases...';
+        return '$syncType: Merging databases...';
       case SyncStatus.uploading:
-        return 'Uploading database...';
+        return '$syncType: Uploading database...';
       case SyncStatus.completed:
-        return 'Sync completed successfully';
+        return '$syncType completed successfully';
       case SyncStatus.error:
-        return 'Sync failed: ${lastError ?? 'Unknown error'}';
+        // For auto-sync errors, show more specific messages
+        if (_isAutoSync && autoSyncLastError != null) {
+          return 'Auto-sync failed: $autoSyncLastError';
+        }
+        return '$syncType failed: ${lastError ?? 'Unknown error'}';
     }
   }
+
+  @override
+  void dispose() {
+    _autoSyncService?.dispose();
+    super.dispose();
+  }
 }