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() {
    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 {
    _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;
    }
  }
}