import 'package:flutter/material.dart';

import '../services/app_preferences.dart';
import '../theme/app_theme.dart';
import 'onboarding/onboarding_screen.dart';
import 'shell/main_shell_screen.dart';

/// Zeigt einmalig das Onboarding, danach die Haupt-App.
class AppLoggedInGate extends StatefulWidget {
  const AppLoggedInGate({super.key, required this.onLoggedOut});

  final VoidCallback onLoggedOut;

  @override
  State<AppLoggedInGate> createState() => _AppLoggedInGateState();
}

class _AppLoggedInGateState extends State<AppLoggedInGate> {
  bool _prefsReady = false;
  bool _onboardingDone = false;

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

  Future<void> _loadPrefs() async {
    final done = await AppPreferences.isOnboardingDone();
    if (!mounted) return;
    setState(() {
      _onboardingDone = done;
      _prefsReady = true;
    });
  }

  @override
  Widget build(BuildContext context) {
    if (!_prefsReady) {
      return const Scaffold(
        backgroundColor: AppTheme.background,
        body: Center(child: CircularProgressIndicator()),
      );
    }
    if (!_onboardingDone) {
      return OnboardingScreen(
        onComplete: () async {
          await AppPreferences.setOnboardingDone();
          if (mounted) setState(() => _onboardingDone = true);
        },
      );
    }
    return MainShellScreen(onLoggedOut: widget.onLoggedOut);
  }
}