lib/data.dart


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import 'dart:async';

import 'package:flutter/foundation.dart';

const String brokerHostname = 'sia.xengineering.eu';
const int brokerPort = 1883;
const String topicPrefix = 'sia';

class AppState with ChangeNotifier {
  Map<String, bool> contacts = <String, bool>{
    'Living Room Window': false,
    'Front Door': true,
    'Back Door': false,
    'Garage Window': true,
  };

  Timer? _timer;

  AppState() {
    _timer = Timer.periodic(const Duration(seconds: 1), (_) {
      toggleFirstContact();
    });
  }

  void toggleFirstContact() {
    if (contacts.isEmpty) {
      return;
    }

    const String choosen = 'Living Room Window';
    bool? state = contacts[choosen];
    if (state != null) {
      contacts[choosen] = !state;
      notifyListeners();
    }
  }

  @override
  void dispose() {
    _timer?.cancel();
    super.dispose();
  }
}