MO-Fuel-Tax-Back/lib/main.dart

92 lines
2.8 KiB
Dart

import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import 'screens/main_shell.dart';
import 'screens/user_agreement_screen.dart';
import 'services/app_state.dart';
import 'theme/app_theme.dart';
import 'widgets/ad_free_upsell_dialog.dart';
void main() {
runApp(const FuelTaxTrackerApp());
}
/// A stable handle on the navigator so [AppState.onAdWatched] can show the
/// "remove ads" dialog from wherever the app happens to be — it fires from
/// deep inside a background sync, not from a widget's own build method, so
/// there's no local [BuildContext] to reach for at that point.
final navigatorKey = GlobalKey<NavigatorState>();
class FuelTaxTrackerApp extends StatelessWidget {
const FuelTaxTrackerApp({super.key});
@override
Widget build(BuildContext context) {
return ChangeNotifierProvider(
create: (_) => AppState()..init(),
child: Consumer<AppState>(
builder: (context, appState, _) {
appState.onAdWatched ??= () {
final dialogContext = navigatorKey.currentContext;
if (dialogContext != null) showAdFreeUpsellDialog(dialogContext);
};
return MaterialApp(
navigatorKey: navigatorKey,
title: 'Fuel Tax Tracker',
theme: AppTheme.light,
darkTheme: AppTheme.dark,
themeMode: appState.themeMode,
home: const AppRoot(),
);
},
),
);
}
}
class AppRoot extends StatelessWidget {
const AppRoot({super.key});
@override
Widget build(BuildContext context) {
return Consumer<AppState>(
builder: (context, appState, _) {
if (appState.isLoading) {
return const Scaffold(
body: Center(child: CircularProgressIndicator()),
);
}
if (appState.initError != null) {
return Scaffold(
body: Center(
child: Padding(
padding: const EdgeInsets.all(24),
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
Icon(Icons.error_outline,
size: 48, color: Theme.of(context).colorScheme.error),
const SizedBox(height: 16),
Text(
'Could not start the app:\n${appState.initError}',
textAlign: TextAlign.center,
),
const SizedBox(height: 16),
FilledButton(
onPressed: () => appState.init(),
child: const Text('Retry'),
),
],
),
),
),
);
}
if (!appState.hasAcceptedUserAgreement) {
return const UserAgreementScreen();
}
return const MainShell();
},
);
}
}