import 'package:flutter/material.dart';
import 'package:shared_preferences/shared_preferences.dart';

class FFAppState extends ChangeNotifier {
  static FFAppState _instance = FFAppState._internal();

  factory FFAppState() {
    return _instance;
  }

  FFAppState._internal();

  static void reset() {
    _instance = FFAppState._internal();
  }

  Future initializePersistedState() async {
    prefs = await SharedPreferences.getInstance();
    _safeInit(() {
      _cliUUID = prefs.getString('ff_cliUUID') ?? _cliUUID;
    });
    _safeInit(() {
      _ownerUUID = prefs.getString('ff_ownerUUID') ?? _ownerUUID;
    });
    _safeInit(() {
      _userUUID = prefs.getString('ff_userUUID') ?? _userUUID;
    });
    _safeInit(() {
      _devUUID = prefs.getString('ff_devUUID') ?? _devUUID;
    });
    _safeInit(() {
      _email = prefs.getString('ff_email') ?? _email;
    });
    _safeInit(() {
      _passwd = prefs.getString('ff_passwd') ?? _passwd;
    });
    _safeInit(() {
      _device = prefs.getString('ff_device') ?? _device;
    });
    _safeInit(() {
      _isLogged = prefs.getBool('ff_isLogged') ?? _isLogged;
    });
    _safeInit(() {
      _local = prefs.getString('ff_local') ?? _local;
    });
  }

  void update(VoidCallback callback) {
    callback();
    notifyListeners();
  }

  late SharedPreferences prefs;

  String _cliUUID = '';
  String get cliUUID => _cliUUID;
  set cliUUID(String value) {
    _cliUUID = value;
    prefs.setString('ff_cliUUID', value);
  }

  String _ownerUUID = '';
  String get ownerUUID => _ownerUUID;
  set ownerUUID(String value) {
    _ownerUUID = value;
    prefs.setString('ff_ownerUUID', value);
  }

  String _userUUID = '';
  String get userUUID => _userUUID;
  set userUUID(String value) {
    _userUUID = value;
    prefs.setString('ff_userUUID', value);
  }

  String _devUUID = '';
  String get devUUID => _devUUID;
  set devUUID(String value) {
    _devUUID = value;
    prefs.setString('ff_devUUID', value);
  }

  String _email = '';
  String get email => _email;
  set email(String value) {
    _email = value;
    prefs.setString('ff_email', value);
  }

  String _passwd = '';
  String get passwd => _passwd;
  set passwd(String value) {
    _passwd = value;
    prefs.setString('ff_passwd', value);
  }

  String _device = '';
  String get device => _device;
  set device(String value) {
    _device = value;
    prefs.setString('ff_device', value);
  }

  bool _isLogged = false;
  bool get isLogged => _isLogged;
  set isLogged(bool value) {
    _isLogged = value;
    prefs.setBool('ff_isLogged', value);
  }

  String _local = '';
  String get local => _local;
  set local(String value) {
    _local = value;
    prefs.setString('ff_local', value);
  }
}

void _safeInit(Function() initializeField) {
  try {
    initializeField();
  } catch (_) {}
}

Future _safeInitAsync(Function() initializeField) async {
  try {
    await initializeField();
  } catch (_) {}
}