// ignore_for_file: scoped_providers_should_specify_dependencies
import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:shared_preferences/shared_preferences.dart';

import 'package:household_keeper/core/router/router.dart';
import 'package:household_keeper/features/rooms/presentation/room_providers.dart';
import 'package:household_keeper/l10n/app_localizations.dart';

void main() {
  group('AppShell Navigation', () {
    setUp(() {
      SharedPreferences.setMockInitialValues({});
    });

    /// Helper to build the app with room provider overridden to empty list.
    Widget buildApp() {
      return ProviderScope(
        overrides: [
          // Override the stream provider to return an empty list immediately
          // so that the rooms screen shows the empty state without needing a DB.
          // ignore: scoped_providers_should_specify_dependencies
          roomWithStatsListProvider.overrideWith(
            (ref) => Stream.value([]),
          ),
        ],
        child: MaterialApp.router(
          routerConfig: router,
          localizationsDelegates: AppLocalizations.localizationsDelegates,
          supportedLocales: const [Locale('de')],
          locale: const Locale('de'),
        ),
      );
    }

    testWidgets('renders 3 navigation destinations with correct German labels',
        (tester) async {
      await tester.pumpWidget(buildApp());
      await tester.pumpAndSettle();

      // Verify 3 NavigationDestination widgets are rendered
      expect(find.byType(NavigationDestination), findsNWidgets(3));

      // Verify correct German labels from ARB (with umlauts)
      expect(find.text('\u00dcbersicht'), findsOneWidget);
      expect(find.text('R\u00e4ume'), findsOneWidget);
      expect(find.text('Einstellungen'), findsOneWidget);
    });

    testWidgets('tapping a destination changes the selected tab',
        (tester) async {
      await tester.pumpWidget(buildApp());
      await tester.pumpAndSettle();

      // Initially on Home tab (index 0) -- verify home empty state is shown
      expect(find.text('Noch nichts zu tun!'), findsOneWidget);

      // Tap the Rooms tab (second destination)
      await tester.tap(find.text('R\u00e4ume'));
      await tester.pumpAndSettle();

      // Verify we see Rooms content now (empty state)
      expect(find.text('Hier ist noch alles leer!'), findsOneWidget);

      // Tap the Settings tab (third destination)
      await tester.tap(find.text('Einstellungen'));
      await tester.pumpAndSettle();

      // Verify we see Settings content now
      expect(find.text('Darstellung'), findsOneWidget);
    });
  });
}