Added ads

lib/services/settings_controller.dart

@@ -1,25 +1,71 @@
 import 'package:flutter/material.dart';
 import 'package:shared_preferences/shared_preferences.dart';
+import 'package:local_auth/local_auth.dart';
 
 class SettingsController extends ChangeNotifier {
   bool _vibrationEnabled = true;
   bool get vibrationEnabled => _vibrationEnabled;
 
+  bool _biometricEnabled = false;
+  bool get biometricEnabled => _biometricEnabled;
+
+  bool _adsEnabled = true;
+  bool get adsEnabled => _adsEnabled;
+
+  final LocalAuthentication auth = LocalAuthentication();
+
+  late Future<void> initializationFuture;
+
   SettingsController() {
-    _loadSettings();
+    initializationFuture = _loadSettings();
   }
 
   Future<void> _loadSettings() async {
     final prefs = await SharedPreferences.getInstance();
     _vibrationEnabled = prefs.getBool('vibration_enabled') ?? true;
+    _biometricEnabled = prefs.getBool('biometric_enabled') ?? false;
+    _adsEnabled = prefs.getBool('ads_enabled') ?? true;
     notifyListeners();
   }
 
   Future<void> toggleVibration(bool value) async {
-    print("Toggling vibration to: $value");
     _vibrationEnabled = value;
     final prefs = await SharedPreferences.getInstance();
     await prefs.setBool('vibration_enabled', value);
     notifyListeners();
   }
+
+  Future<void> toggleBiometric(bool value) async {
+    _biometricEnabled = value;
+    final prefs = await SharedPreferences.getInstance();
+    await prefs.setBool('biometric_enabled', value);
+    notifyListeners();
+  }
+
+  Future<void> toggleAds(bool value) async {
+    _adsEnabled = value;
+    final prefs = await SharedPreferences.getInstance();
+    await prefs.setBool('ads_enabled', value);
+    notifyListeners();
+  }
+
+  Future<bool> checkSecurity() async {
+    await initializationFuture;
+
+    if (!_biometricEnabled) return true;
+
+    bool canCheck = await auth.canCheckBiometrics;
+    bool isSupported = await auth.isDeviceSupported();
+
+    if (!canCheck && !isSupported) return true;
+
+    try {
+      return await auth.authenticate(
+        localizedReason: 'Unlock QuickSSH',
+        biometricOnly: false,
+      );
+    } catch (e) {
+      return false;
+    }
+  }
 }