class App extends StatefulWidget {
  final WeatherRepository weatherRepository;

  App({Key key, @required this.weatherRepository})
      : assert(weatherRepository != null),
        super(key: key);

  @override
  State<App> createState() => _AppState();
}

class _AppState extends State<App> {
  ThemeBloc _themeBloc = ThemeBloc();
  SettingsBloc _settingsBloc = SettingsBloc();

  @override
  Widget build(BuildContext context) {
    return BlocProvider(
      bloc: _themeBloc,
      child: BlocProvider(
        bloc: _settingsBloc,
        child: BlocBuilder(
          bloc: _themeBloc,
          builder: (_, ThemeState themeState) {
            return MaterialApp(
              title: 'Flutter Demo',
              theme: themeState.theme,
              home: Weather(
                weatherRepository: widget.weatherRepository,
              ),
            );
          },
        ),
      ),
    );
  }

  @override
  void dispose() {
    _themeBloc.dispose();
    _settingsBloc.dispose();
    super.dispose();
  }
}