Linux Datetime

This service exposes the org.freedesktop.timedate1 dbus interface as a reusable, stream-conglomerate. This is useful when you want to modify the datetime and timezone of your linux system and want to listen to these changes at the same time.

class DateTimeModel extends SafeChangeNotifier {
  final LinuxDateTime _dateTimeService;
  StreamSubscription<String?>? _timezoneSub;
  StreamSubscription<bool?>? _ntpSyncSub;
  Timer? _fetchDateTimeTimer;
  DateTime? _dateTime;

  DateTimeModel({
    required LinuxDateTime dateTimeService,
  });

  Future<void> init() {
    return _dateTimeService.init().then((_) async {
      _timezoneSub = _dateTimeService.timezoneChanged.listen((_) {
        notifyListeners();
      });
      _ntpSyncSub = _dateTimeService.ntpChanged.listen((_) {
        notifyListeners();
      });
      _dateTime = await _dateTimeService.getDateTime();
      notifyListeners();

      _fetchDateTimeTimer = Timer.periodic(
        const Duration(seconds: 1),
        (timer) async {
          _dateTime = await _dateTimeService.getDateTime();
          notifyListeners();
        },
      );
    });
  }
}