sf-app-platform/apps/mobile_app/lib/main.dart

import 'package:auth/auth.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_dotenv/flutter_dotenv.dart';
import 'package:flutter_localizations/flutter_localizations.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:design_system/design_system.dart';
import 'package:sca_treezor/sca_treezor_module.dart';
import 'package:sf_app_platform/config/env/questia_env_config.dart';
import 'package:sf_app_platform/navigation/app_router.dart';
import 'package:navigation/navigation.dart';
import 'package:sf_app_platform/providers/app_state_provider.dart';
import 'package:sf_app_platform/providers/permissions/permissions_provider.dart';
import 'package:sf_app_platform/providers/wallet_heartbeat_service.dart';
import 'package:sf_infrastructure/sf_infrastructure.dart';
import 'package:sf_shared/sf_shared.dart';
import 'package:sf_localizations/sf_localizations.dart';
import 'package:utils/utils.dart';
import 'package:fonts/fonts.dart';

Future<void> main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await SystemChrome.setPreferredOrientations([DeviceOrientation.portraitUp]);
  navigationModule();
  scaTreezorModule();
  configureAppRouter();
  themePackages();
  await dotenv.load(fileName: '.env');

  await configureDependencies(
    QuestiaEnvConfig(),
    log: kDebugMode,
    onTreezorTokenExpired: () => appRouter.go(AppRoutes.scaTreezor),
  );

  runApp(const ProviderScope(child: PlatformApp()));
}

class PlatformApp extends ConsumerStatefulWidget {
  const PlatformApp({super.key});

  @override
  PlatformAppState createState() => PlatformAppState();
}

class PlatformAppState extends ConsumerState<PlatformApp>
    with WidgetsBindingObserver {
  late final WalletHeartbeatService walletHeartbeat;

  @override
  void initState() {
    super.initState();
    WidgetsBinding.instance.addObserver(this);
    walletHeartbeat = WalletHeartbeatService(
      repository: ref.read(treezorRepositoryProvider),
      sessionLocal: SessionLocalDatasourceImpl(),
    );
    onBeforeSessionCleared = walletHeartbeat.stop;
    walletHeartbeat.start();
  }

  @override
  void dispose() {
    walletHeartbeat.stop();
    WidgetsBinding.instance.removeObserver(this);
    super.dispose();
  }

  @override
  void didChangeAppLifecycleState(AppLifecycleState state) {
    debugPrint('State: $state');
    ref.read(appLifecycleStateProvider.notifier).setState(state);
    if (state == AppLifecycleState.resumed) {
      walletHeartbeat.start();
      ref.read(permissionsProvider.notifier).checkPermissions();
    } else if (state == AppLifecycleState.paused) {
      walletHeartbeat.stop();
    }
    super.didChangeAppLifecycleState(state);
  }

  @override
  Widget build(BuildContext context) {
    SizeUtils.init(context: context);

    return MaterialApp.router(
      title: 'SaveFamily',
      theme: ThemeData(
        fontFamily: AppFonts.stolzl,
        colorScheme: ColorScheme.fromSeed(seedColor: const Color(0xFF329E95)),
      ),
      routerConfig: appRouter,
      debugShowCheckedModeBanner: false,
      localizationsDelegates: [
        // CountryLocalizations.delegate,
        SFLocalizations.delegate,
        GlobalMaterialLocalizations.delegate,
        GlobalCupertinoLocalizations.delegate,
        GlobalWidgetsLocalizations.delegate,
      ],

      supportedLocales: [for (final lang in supportedLanguages) Locale(lang)],
      localeResolutionCallback: (locale, supportedLocales) {
        if (locale == null) return supportedLocales.first;
        for (var supportedLocale in supportedLocales) {
          if (supportedLocale.languageCode == locale.languageCode) {
            return supportedLocale;
          }
        }
        return supportedLocales.first;
      },
    );
  }
}