comunicmobile/lib/main.dart

import 'package:comunic/helpers/account_helper.dart';
import 'package:comunic/helpers/database/database_helper.dart';
import 'package:comunic/helpers/preferences_helper.dart';
import 'package:comunic/ui/routes/home_route.dart';
import 'package:comunic/ui/routes/login_route.dart';
import 'package:comunic/utils/intl_utils.dart';
import 'package:comunic/utils/ui_utils.dart';
import 'package:flutter/material.dart';

/// Main file of the application
///
/// @author Pierre HUBERT

void subMain() async {

  WidgetsFlutterBinding.ensureInitialized();

  // Connect to database
  await DatabaseHelper.open();

  // Get current system language
  await initTranslations();

  runApp(ComunicApplication(
    darkMode: (await PreferencesHelper.getInstance())
        .getBool(PreferencesKeyList.ENABLE_DARK_THEME),
  ));
}

class ComunicApplication extends StatelessWidget {
  final bool darkMode;

  const ComunicApplication({Key key, @required this.darkMode})
      : assert(darkMode != null),
        super(key: key);

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: ComunicApplicationHome(),
      theme: darkMode ? ThemeData.dark() : ThemeData.light(),
    );
  }
}

class ComunicApplicationHome extends StatefulWidget {
  @override
  State<StatefulWidget> createState() => _ComunicApplicationHomeState();
}

class _ComunicApplicationHomeState extends State<ComunicApplicationHome> {
  bool _signedIn;

  @override
  void initState() {
    super.initState();

    AccountHelper().signedIn().then((v) {
      setState(() {
        _signedIn = v;
      });
    });
  }

  @override
  Widget build(BuildContext context) {
    if (_signedIn == null) return buildLoadingPage();

    if (_signedIn)
      return HomeRoute();
    else
      return LoginRoute();
  }
}