// integration_test/app_flow_test.dart
//
// Integration Tests (E2E) untuk WalkGuide App — 3 alur utama:
//   Flow 1: Login → Dashboard → Logout
//   Flow 2: Login → WalkGuide → Start → Stop → SOS
//   Flow 3: Login → Notifikasi → Tandai Semua Dibaca → Kembali
//
// Jalankan di device fisik:
//   flutter test integration_test/app_flow_test.dart
//   atau:
//   flutter drive --driver=test_driver/integration_test.dart \
//                 --target=integration_test/app_flow_test.dart
//
// CATATAN:
//   Integration test ini menggunakan stub backend lokal untuk simulasi
//   HTTP response sehingga bisa dijalankan tanpa koneksi ke server kampus.
//   Untuk E2E full terhadap server live, lihat bagian LIVE TEST di bawah.
//
// Dev dependencies (pubspec.yaml):
//   integration_test:
//     sdk: flutter
//   flutter_test:
//     sdk: flutter
//   mockito: ^5.4.4

// ignore_for_file: avoid_print

import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:integration_test/integration_test.dart';

// ---------------------------------------------------------------------------
// Minimal App stub untuk integration test tanpa full DI stack
// ---------------------------------------------------------------------------
//
// PENTING: Dalam project nyata, ganti _IntegrationTestApp dengan:
//   import 'package:walkguide_app/main.dart' as app;
//   void main() { app.main(); }
//
// Kemudian mock service layer (ApiClient, SecureStorage) dengan Mockito
// agar test tidak perlu koneksi internet.
//
// Untuk saat ini kita pakai stub app yang self-contained supaya test
// bisa langsung run tanpa setup penuh.

// ---------------------------------------------------------------------------
// ─── Shared Models ─────────────────────────────────────────────────────────
// ---------------------------------------------------------------------------

class FakeUser {
  final String email;
  final String password;
  final String role;
  final String token;

  const FakeUser({
    required this.email,
    required this.password,
    required this.role,
    required this.token,
  });
}

const _fakeUserAccount = FakeUser(
  email: 'user@walkguide.test',
  password: 'Password123!',
  role: 'ROLE_USER',
  token: 'fake-jwt-token-user-xxx',
);

const _fakeGuardianAccount = FakeUser(
  email: 'guardian@walkguide.test',
  password: 'Password123!',
  role: 'ROLE_GUARDIAN',
  token: 'fake-jwt-token-guardian-xxx',
);

// ---------------------------------------------------------------------------
// ─── Stub App ───────────────────────────────────────────────────────────────
// ---------------------------------------------------------------------------

/// State global sederhana (pengganti DI Container di test)
class _AppState extends ChangeNotifier {
  FakeUser? _currentUser;
  bool _walkGuideActive = false;
  bool _sosSent = false;
  List<_NotifItem> _notifications = [
    _NotifItem(id: 1, content: 'Hati-hati di persimpangan', isRead: false),
    _NotifItem(id: 2, content: 'Cuaca memburuk hari ini', isRead: false),
    _NotifItem(id: 3, content: 'Pesan lama sudah dibaca', isRead: true),
  ];

  FakeUser? get currentUser => _currentUser;
  bool get walkGuideActive => _walkGuideActive;
  bool get sosSent => _sosSent;
  List<_NotifItem> get notifications => _notifications;
  int get unreadCount => _notifications.where((n) => !n.isRead).length;

  /// Simulasi login: return true jika credentials cocok
  Future<bool> login(String email, String password) async {
    await Future.delayed(const Duration(milliseconds: 300));
    if (email == _fakeUserAccount.email &&
        password == _fakeUserAccount.password) {
      _currentUser = _fakeUserAccount;
      notifyListeners();
      return true;
    }
    if (email == _fakeGuardianAccount.email &&
        password == _fakeGuardianAccount.password) {
      _currentUser = _fakeGuardianAccount;
      notifyListeners();
      return true;
    }
    return false;
  }

  void logout() {
    _currentUser = null;
    _walkGuideActive = false;
    _sosSent = false;
    notifyListeners();
  }

  void toggleWalkGuide() {
    _walkGuideActive = !_walkGuideActive;
    notifyListeners();
  }

  Future<void> sendSos() async {
    await Future.delayed(const Duration(milliseconds: 200));
    _sosSent = true;
    notifyListeners();
  }

  void markAllRead() {
    _notifications = _notifications
        .map((n) => _NotifItem(id: n.id, content: n.content, isRead: true))
        .toList();
    notifyListeners();
  }
}

class _NotifItem {
  final int id;
  final String content;
  final bool isRead;
  const _NotifItem(
      {required this.id, required this.content, required this.isRead});
}

// ── Screens ────────────────────────────────────────────────────────────────

class _LoginScreen extends StatefulWidget {
  const _LoginScreen();

  @override
  State<_LoginScreen> createState() => _LoginScreenState();
}

class _LoginScreenState extends State<_LoginScreen> {
  final _emailCtrl = TextEditingController();
  final _passCtrl = TextEditingController();
  bool _loading = false;
  String? _error;

  @override
  void dispose() {
    _emailCtrl.dispose();
    _passCtrl.dispose();
    super.dispose();
  }

  Future<void> _submit() async {
    final state = _AppStateProvider.of(context);
    setState(() {
      _loading = true;
      _error = null;
    });
    final ok = await state.login(_emailCtrl.text.trim(), _passCtrl.text);
    if (!mounted) return;
    setState(() => _loading = false);
    if (ok) {
      Navigator.of(context).pushReplacementNamed('/dashboard');
    } else {
      setState(() => _error = 'Email atau password salah');
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: const Text('Login')),
      body: Padding(
        padding: const EdgeInsets.all(20),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.stretch,
          children: [
            const Text('WalkGuide',
                style: TextStyle(fontSize: 28, fontWeight: FontWeight.bold)),
            const SizedBox(height: 24),
            if (_error != null)
              Container(
                key: const Key('login_error'),
                padding: const EdgeInsets.all(12),
                color: Colors.red.shade50,
                child: Text(_error!, style: const TextStyle(color: Colors.red)),
              ),
            TextField(
              key: const Key('email_field'),
              controller: _emailCtrl,
              keyboardType: TextInputType.emailAddress,
              decoration: const InputDecoration(labelText: 'Email'),
            ),
            const SizedBox(height: 16),
            TextField(
              key: const Key('password_field'),
              controller: _passCtrl,
              obscureText: true,
              decoration: const InputDecoration(labelText: 'Password'),
            ),
            const SizedBox(height: 24),
            _loading
                ? const Center(
                    child: CircularProgressIndicator(key: Key('login_loading')))
                : ElevatedButton(
                    key: const Key('login_button'),
                    onPressed: _submit,
                    child: const Text('Masuk'),
                  ),
          ],
        ),
      ),
    );
  }
}

class _DashboardScreen extends StatelessWidget {
  const _DashboardScreen();

  @override
  Widget build(BuildContext context) {
    final state = _AppStateProvider.of(context);
    return ListenableBuilder(
      listenable: state,
      builder: (context, _) {
        final user = state.currentUser;
        return Scaffold(
          appBar: AppBar(
            title: const Text('Dashboard'),
            actions: [
              TextButton(
                key: const Key('logout_button'),
                onPressed: () {
                  state.logout();
                  Navigator.of(context).pushReplacementNamed('/login');
                },
                child: const Text('Keluar'),
              ),
            ],
          ),
          body: Padding(
            padding: const EdgeInsets.all(20),
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.stretch,
              children: [
                Card(
                  key: const Key('user_card'),
                  child: Padding(
                    padding: const EdgeInsets.all(16),
                    child: Column(
                      crossAxisAlignment: CrossAxisAlignment.start,
                      children: [
                        Text(
                          key: const Key('user_role_text'),
                          'Role: ${user?.role ?? '-'}',
                          style: const TextStyle(fontWeight: FontWeight.bold),
                        ),
                        Text(
                          key: const Key('user_email_text'),
                          'Email: ${user?.email ?? '-'}',
                        ),
                      ],
                    ),
                  ),
                ),
                const SizedBox(height: 16),
                ElevatedButton.icon(
                  key: const Key('go_walkguide_button'),
                  onPressed: () =>
                      Navigator.of(context).pushNamed('/walkguide'),
                  icon: const Icon(Icons.directions_walk),
                  label: const Text('WalkGuide'),
                ),
                const SizedBox(height: 8),
                ElevatedButton.icon(
                  key: const Key('go_notifications_button'),
                  onPressed: () =>
                      Navigator.of(context).pushNamed('/notifications'),
                  icon: const Icon(Icons.notifications),
                  label: Stack(
                    children: [
                      const Text('Notifikasi'),
                      if (state.unreadCount > 0)
                        Positioned(
                          right: -4,
                          top: -4,
                          child: Container(
                            key: const Key('dashboard_unread_badge'),
                            padding: const EdgeInsets.all(4),
                            decoration: const BoxDecoration(
                              color: Colors.red,
                              shape: BoxShape.circle,
                            ),
                            child: Text(
                              '${state.unreadCount}',
                              style: const TextStyle(
                                  color: Colors.white, fontSize: 10),
                            ),
                          ),
                        ),
                    ],
                  ),
                ),
                const SizedBox(height: 8),
                ElevatedButton.icon(
                  key: const Key('go_sos_button'),
                  onPressed: () => Navigator.of(context).pushNamed('/sos'),
                  icon: const Icon(Icons.sos, color: Colors.red),
                  label: const Text('SOS'),
                ),
              ],
            ),
          ),
        );
      },
    );
  }
}

class _WalkGuideScreen extends StatelessWidget {
  const _WalkGuideScreen();

  @override
  Widget build(BuildContext context) {
    final state = _AppStateProvider.of(context);
    return ListenableBuilder(
      listenable: state,
      builder: (context, _) {
        return Scaffold(
          appBar: AppBar(title: const Text('WalkGuide')),
          body: Center(
            child: Column(
              mainAxisAlignment: MainAxisAlignment.center,
              children: [
                Container(
                  key: const Key('wg_status_bar'),
                  padding:
                      const EdgeInsets.symmetric(horizontal: 24, vertical: 12),
                  decoration: BoxDecoration(
                    color: state.walkGuideActive ? Colors.green : Colors.grey,
                    borderRadius: BorderRadius.circular(24),
                  ),
                  child: Text(
                    key: const Key('wg_status_text'),
                    state.walkGuideActive ? 'AKTIF' : 'TIDAK AKTIF',
                    style: const TextStyle(
                        color: Colors.white,
                        fontWeight: FontWeight.bold,
                        fontSize: 18),
                  ),
                ),
                const SizedBox(height: 32),
                ElevatedButton.icon(
                  key: const Key('wg_toggle_button'),
                  onPressed: state.toggleWalkGuide,
                  icon: Icon(
                      state.walkGuideActive ? Icons.stop : Icons.play_arrow),
                  label: Text(state.walkGuideActive
                      ? 'Stop WalkGuide'
                      : 'Start WalkGuide'),
                  style: ElevatedButton.styleFrom(
                    backgroundColor:
                        state.walkGuideActive ? Colors.red : Colors.blue,
                    foregroundColor: Colors.white,
                    minimumSize: const Size(200, 52),
                  ),
                ),
                const SizedBox(height: 16),
                OutlinedButton.icon(
                  key: const Key('wg_sos_button'),
                  onPressed: () => Navigator.of(context).pushNamed('/sos'),
                  icon: const Icon(Icons.sos, color: Colors.red),
                  label: const Text('SOS', style: TextStyle(color: Colors.red)),
                ),
              ],
            ),
          ),
        );
      },
    );
  }
}

class _SosScreen extends StatelessWidget {
  const _SosScreen();

  @override
  Widget build(BuildContext context) {
    final state = _AppStateProvider.of(context);
    return ListenableBuilder(
      listenable: state,
      builder: (context, _) {
        return Scaffold(
          appBar: AppBar(title: const Text('SOS')),
          body: Center(
            child: Column(
              mainAxisAlignment: MainAxisAlignment.center,
              children: [
                if (state.sosSent)
                  Container(
                    key: const Key('sos_sent_banner'),
                    margin: const EdgeInsets.all(16),
                    padding: const EdgeInsets.all(16),
                    decoration: BoxDecoration(
                      color: Colors.green.shade50,
                      borderRadius: BorderRadius.circular(8),
                      border: Border.all(color: Colors.green),
                    ),
                    child: const Row(
                      mainAxisAlignment: MainAxisAlignment.center,
                      children: [
                        Icon(Icons.check_circle, color: Colors.green),
                        SizedBox(width: 8),
                        Text(
                          key: Key('sos_sent_text'),
                          'SOS berhasil dikirim!',
                          style: TextStyle(
                              color: Colors.green, fontWeight: FontWeight.bold),
                        ),
                      ],
                    ),
                  ),
                GestureDetector(
                  onTap: state.sendSos,
                  child: Container(
                    key: const Key('sos_main_button'),
                    width: 160,
                    height: 160,
                    decoration: BoxDecoration(
                      color: state.sosSent ? Colors.grey : Colors.red,
                      shape: BoxShape.circle,
                    ),
                    child: Column(
                      mainAxisAlignment: MainAxisAlignment.center,
                      children: [
                        const Icon(Icons.sos, color: Colors.white, size: 52),
                        Text(
                          state.sosSent ? 'TERKIRIM' : 'SOS',
                          style: const TextStyle(
                              color: Colors.white,
                              fontSize: 20,
                              fontWeight: FontWeight.bold),
                        ),
                      ],
                    ),
                  ),
                ),
              ],
            ),
          ),
        );
      },
    );
  }
}

class _NotificationScreen extends StatelessWidget {
  const _NotificationScreen();

  @override
  Widget build(BuildContext context) {
    final state = _AppStateProvider.of(context);
    return ListenableBuilder(
      listenable: state,
      builder: (context, _) {
        final notifs = state.notifications;
        final hasUnread = notifs.any((n) => !n.isRead);
        return Scaffold(
          appBar: AppBar(
            title: const Text('Notifikasi'),
            actions: [
              if (hasUnread)
                TextButton(
                  key: const Key('mark_all_read_button'),
                  onPressed: state.markAllRead,
                  child: const Text('Tandai Semua'),
                ),
            ],
          ),
          body: ListView.separated(
            key: const Key('notif_list'),
            itemCount: notifs.length,
            separatorBuilder: (_, __) => const Divider(height: 1),
            itemBuilder: (context, i) {
              final n = notifs[i];
              return ListTile(
                key: Key('notif_item_${n.id}'),
                title: Text(n.content),
                trailing: n.isRead
                    ? null
                    : Container(
                        key: Key('notif_unread_${n.id}'),
                        width: 10,
                        height: 10,
                        decoration: const BoxDecoration(
                          color: Colors.blue,
                          shape: BoxShape.circle,
                        ),
                      ),
              );
            },
          ),
        );
      },
    );
  }
}

// ── InheritedWidget untuk state ────────────────────────────────────────────

class _AppStateProvider extends InheritedNotifier<_AppState> {
  const _AppStateProvider({required super.notifier, required super.child});

  static _AppState of(BuildContext context) {
    final provider =
        context.dependOnInheritedWidgetOfExactType<_AppStateProvider>();
    assert(provider != null, '_AppStateProvider not found in widget tree');
    return provider!.notifier!;
  }
}

// ── Root App ───────────────────────────────────────────────────────────────

class _IntegrationTestApp extends StatelessWidget {
  final _AppState _state = _AppState();

  _IntegrationTestApp();

  @override
  Widget build(BuildContext context) {
    return _AppStateProvider(
      notifier: _state,
      child: MaterialApp(
        initialRoute: '/login',
        routes: {
          '/login': (_) => const _LoginScreen(),
          '/dashboard': (_) => const _DashboardScreen(),
          '/walkguide': (_) => const _WalkGuideScreen(),
          '/sos': (_) => const _SosScreen(),
          '/notifications': (_) => const _NotificationScreen(),
        },
      ),
    );
  }
}

// ---------------------------------------------------------------------------
// ─── Integration Tests ─────────────────────────────────────────────────────
// ---------------------------------------------------------------------------

void main() {
  IntegrationTestWidgetsFlutterBinding.ensureInitialized();

  // ══════════════════════════════════════════════════════════════════════════
  // FLOW 1: Login → Dashboard → Logout
  // ══════════════════════════════════════════════════════════════════════════
  group('Flow 1: Login → Dashboard → Logout', () {
    testWidgets('1.1 - halaman login tampil pertama kali', (tester) async {
      await tester.pumpWidget(_IntegrationTestApp());
      await tester.pumpAndSettle();

      expect(find.text('Login'), findsAtLeastNWidgets(1));
      expect(find.byKey(const Key('email_field')), findsOneWidget);
      expect(find.byKey(const Key('password_field')), findsOneWidget);
      expect(find.byKey(const Key('login_button')), findsOneWidget);
    });

    testWidgets('1.2 - login dengan credentials salah menampilkan error',
        (tester) async {
      await tester.pumpWidget(_IntegrationTestApp());
      await tester.pumpAndSettle();

      await tester.enterText(
          find.byKey(const Key('email_field')), 'wrong@email.com');
      await tester.enterText(
          find.byKey(const Key('password_field')), 'wrongpass');
      await tester.tap(find.byKey(const Key('login_button')));
      await tester.pumpAndSettle();

      expect(find.byKey(const Key('login_error')), findsOneWidget);
      expect(find.text('Email atau password salah'), findsOneWidget);
    });

    testWidgets('1.3 - login berhasil redirect ke Dashboard', (tester) async {
      await tester.pumpWidget(_IntegrationTestApp());
      await tester.pumpAndSettle();

      await tester.enterText(
          find.byKey(const Key('email_field')), _fakeUserAccount.email);
      await tester.enterText(
          find.byKey(const Key('password_field')), _fakeUserAccount.password);
      await tester.tap(find.byKey(const Key('login_button')));
      await tester.pumpAndSettle();

      expect(find.text('Dashboard'), findsOneWidget);
      expect(find.byKey(const Key('user_card')), findsOneWidget);
    });

    testWidgets('1.4 - dashboard menampilkan role user yang benar',
        (tester) async {
      await tester.pumpWidget(_IntegrationTestApp());
      await tester.pumpAndSettle();

      await tester.enterText(
          find.byKey(const Key('email_field')), _fakeUserAccount.email);
      await tester.enterText(
          find.byKey(const Key('password_field')), _fakeUserAccount.password);
      await tester.tap(find.byKey(const Key('login_button')));
      await tester.pumpAndSettle();

      expect(find.textContaining('ROLE_USER'), findsOneWidget);
    });

    testWidgets('1.5 - dashboard menampilkan email user yang login',
        (tester) async {
      await tester.pumpWidget(_IntegrationTestApp());
      await tester.pumpAndSettle();

      await tester.enterText(
          find.byKey(const Key('email_field')), _fakeUserAccount.email);
      await tester.enterText(
          find.byKey(const Key('password_field')), _fakeUserAccount.password);
      await tester.tap(find.byKey(const Key('login_button')));
      await tester.pumpAndSettle();

      expect(find.textContaining(_fakeUserAccount.email), findsOneWidget);
    });

    testWidgets('1.6 - logout kembali ke halaman login', (tester) async {
      await tester.pumpWidget(_IntegrationTestApp());
      await tester.pumpAndSettle();

      // Login
      await tester.enterText(
          find.byKey(const Key('email_field')), _fakeUserAccount.email);
      await tester.enterText(
          find.byKey(const Key('password_field')), _fakeUserAccount.password);
      await tester.tap(find.byKey(const Key('login_button')));
      await tester.pumpAndSettle();

      expect(find.text('Dashboard'), findsOneWidget);

      // Logout
      await tester.tap(find.byKey(const Key('logout_button')));
      await tester.pumpAndSettle();

      expect(find.byKey(const Key('login_button')), findsOneWidget);
      expect(find.text('Dashboard'), findsNothing);
    });

    testWidgets('1.7 - guardian login juga masuk ke dashboard', (tester) async {
      await tester.pumpWidget(_IntegrationTestApp());
      await tester.pumpAndSettle();

      await tester.enterText(
          find.byKey(const Key('email_field')), _fakeGuardianAccount.email);
      await tester.enterText(find.byKey(const Key('password_field')),
          _fakeGuardianAccount.password);
      await tester.tap(find.byKey(const Key('login_button')));
      await tester.pumpAndSettle();

      expect(find.text('Dashboard'), findsOneWidget);
      expect(find.textContaining('ROLE_GUARDIAN'), findsOneWidget);
    });

    testWidgets('1.8 - dashboard menampilkan tombol navigasi ke fitur utama',
        (tester) async {
      await tester.pumpWidget(_IntegrationTestApp());
      await tester.pumpAndSettle();

      await tester.enterText(
          find.byKey(const Key('email_field')), _fakeUserAccount.email);
      await tester.enterText(
          find.byKey(const Key('password_field')), _fakeUserAccount.password);
      await tester.tap(find.byKey(const Key('login_button')));
      await tester.pumpAndSettle();

      expect(find.byKey(const Key('go_walkguide_button')), findsOneWidget);
      expect(find.byKey(const Key('go_notifications_button')), findsOneWidget);
      expect(find.byKey(const Key('go_sos_button')), findsOneWidget);
    });
  });

  // ══════════════════════════════════════════════════════════════════════════
  // FLOW 2: Login → WalkGuide → Start → Stop → SOS
  // ══════════════════════════════════════════════════════════════════════════
  group('Flow 2: Login → WalkGuide → Start → Stop → SOS', () {
    /// Helper: Login dan navigasi ke WalkGuide
    Future<void> _loginAndGoToWalkGuide(WidgetTester tester) async {
      await tester.pumpWidget(_IntegrationTestApp());
      await tester.pumpAndSettle();

      await tester.enterText(
          find.byKey(const Key('email_field')), _fakeUserAccount.email);
      await tester.enterText(
          find.byKey(const Key('password_field')), _fakeUserAccount.password);
      await tester.tap(find.byKey(const Key('login_button')));
      await tester.pumpAndSettle();

      await tester.tap(find.byKey(const Key('go_walkguide_button')));
      await tester.pumpAndSettle();
    }

    testWidgets('2.1 - navigasi dari Dashboard ke WalkGuide berhasil',
        (tester) async {
      await _loginAndGoToWalkGuide(tester);

      expect(find.text('WalkGuide'), findsAtLeastNWidgets(1));
      expect(find.byKey(const Key('wg_toggle_button')), findsOneWidget);
    });

    testWidgets('2.2 - status awal WalkGuide adalah TIDAK AKTIF',
        (tester) async {
      await _loginAndGoToWalkGuide(tester);

      expect(find.text('TIDAK AKTIF'), findsOneWidget);
      expect(find.text('Start WalkGuide'), findsOneWidget);
    });

    testWidgets('2.3 - tap Start mengubah status menjadi AKTIF',
        (tester) async {
      await _loginAndGoToWalkGuide(tester);

      await tester.tap(find.byKey(const Key('wg_toggle_button')));
      await tester.pumpAndSettle();

      expect(find.text('AKTIF'), findsOneWidget);
      expect(find.text('Stop WalkGuide'), findsOneWidget);
    });

    testWidgets('2.4 - status bar berwarna hijau saat WalkGuide aktif',
        (tester) async {
      await _loginAndGoToWalkGuide(tester);

      await tester.tap(find.byKey(const Key('wg_toggle_button')));
      await tester.pumpAndSettle();

      final statusBar =
          tester.widget<Container>(find.byKey(const Key('wg_status_bar')));
      final decoration = statusBar.decoration as BoxDecoration;
      expect(decoration.color, Colors.green);
    });

    testWidgets('2.5 - tap Stop mengembalikan status ke TIDAK AKTIF',
        (tester) async {
      await _loginAndGoToWalkGuide(tester);

      // Start
      await tester.tap(find.byKey(const Key('wg_toggle_button')));
      await tester.pumpAndSettle();
      expect(find.text('AKTIF'), findsOneWidget);

      // Stop
      await tester.tap(find.byKey(const Key('wg_toggle_button')));
      await tester.pumpAndSettle();
      expect(find.text('TIDAK AKTIF'), findsOneWidget);
    });

    testWidgets('2.6 - tombol Start/Stop dapat di-toggle berulang kali',
        (tester) async {
      await _loginAndGoToWalkGuide(tester);

      for (int i = 0; i < 3; i++) {
        await tester.tap(find.byKey(const Key('wg_toggle_button')));
        await tester.pumpAndSettle();
      }

      // Setelah 3 kali tap: aktif → tidak aktif → aktif
      expect(find.text('AKTIF'), findsOneWidget);
    });

    testWidgets('2.7 - tombol SOS tersedia di layar WalkGuide', (tester) async {
      await _loginAndGoToWalkGuide(tester);

      expect(find.byKey(const Key('wg_sos_button')), findsOneWidget);
    });

    testWidgets('2.8 - tap tombol SOS dari WalkGuide navigasi ke SOS screen',
        (tester) async {
      await _loginAndGoToWalkGuide(tester);

      await tester.tap(find.byKey(const Key('wg_sos_button')));
      await tester.pumpAndSettle();

      expect(find.byKey(const Key('sos_main_button')), findsOneWidget);
    });

    testWidgets('2.9 - tap tombol SOS di SOS screen mengirim SOS',
        (tester) async {
      await _loginAndGoToWalkGuide(tester);

      await tester.tap(find.byKey(const Key('wg_sos_button')));
      await tester.pumpAndSettle();

      await tester.tap(find.byKey(const Key('sos_main_button')));
      await tester.pumpAndSettle();

      expect(find.byKey(const Key('sos_sent_banner')), findsOneWidget);
      expect(find.text('SOS berhasil dikirim!'), findsOneWidget);
    });

    testWidgets(
        '2.10 - setelah SOS terkirim, tombol SOS berubah label TERKIRIM',
        (tester) async {
      await _loginAndGoToWalkGuide(tester);

      await tester.tap(find.byKey(const Key('wg_sos_button')));
      await tester.pumpAndSettle();

      await tester.tap(find.byKey(const Key('sos_main_button')));
      await tester.pumpAndSettle();

      expect(find.text('TERKIRIM'), findsOneWidget);
    });
  });

  // ══════════════════════════════════════════════════════════════════════════
  // FLOW 3: Login → Notifikasi → Tandai Semua → Kembali ke Dashboard
  // ══════════════════════════════════════════════════════════════════════════
  group('Flow 3: Login → Notifikasi → Mark All Read → Kembali', () {
    /// Helper: Login dan navigasi ke Notifikasi
    Future<void> _loginAndGoToNotifications(WidgetTester tester) async {
      await tester.pumpWidget(_IntegrationTestApp());
      await tester.pumpAndSettle();

      await tester.enterText(
          find.byKey(const Key('email_field')), _fakeUserAccount.email);
      await tester.enterText(
          find.byKey(const Key('password_field')), _fakeUserAccount.password);
      await tester.tap(find.byKey(const Key('login_button')));
      await tester.pumpAndSettle();

      await tester.tap(find.byKey(const Key('go_notifications_button')));
      await tester.pumpAndSettle();
    }

    testWidgets('3.1 - navigasi ke Notifikasi dari Dashboard berhasil',
        (tester) async {
      await _loginAndGoToNotifications(tester);

      expect(find.text('Notifikasi'), findsAtLeastNWidgets(1));
      expect(find.byKey(const Key('notif_list')), findsOneWidget);
    });

    testWidgets('3.2 - notifikasi yang ada ditampilkan dalam list',
        (tester) async {
      await _loginAndGoToNotifications(tester);

      expect(find.byKey(const Key('notif_item_1')), findsOneWidget);
      expect(find.byKey(const Key('notif_item_2')), findsOneWidget);
      expect(find.byKey(const Key('notif_item_3')), findsOneWidget);
    });

    testWidgets('3.3 - notifikasi belum dibaca menampilkan dot biru',
        (tester) async {
      await _loginAndGoToNotifications(tester);

      expect(find.byKey(const Key('notif_unread_1')), findsOneWidget);
      expect(find.byKey(const Key('notif_unread_2')), findsOneWidget);
    });

    testWidgets('3.4 - notifikasi sudah dibaca tidak menampilkan dot',
        (tester) async {
      await _loginAndGoToNotifications(tester);

      expect(find.byKey(const Key('notif_unread_3')), findsNothing);
    });

    testWidgets('3.5 - tombol Tandai Semua tersedia saat ada unread',
        (tester) async {
      await _loginAndGoToNotifications(tester);

      expect(find.byKey(const Key('mark_all_read_button')), findsOneWidget);
    });

    testWidgets('3.6 - dashboard menampilkan unread badge sebelum mark all',
        (tester) async {
      await tester.pumpWidget(_IntegrationTestApp());
      await tester.pumpAndSettle();

      await tester.enterText(
          find.byKey(const Key('email_field')), _fakeUserAccount.email);
      await tester.enterText(
          find.byKey(const Key('password_field')), _fakeUserAccount.password);
      await tester.tap(find.byKey(const Key('login_button')));
      await tester.pumpAndSettle();

      expect(find.byKey(const Key('dashboard_unread_badge')), findsOneWidget);
    });

    testWidgets('3.7 - tap Tandai Semua menghapus semua dot unread',
        (tester) async {
      await _loginAndGoToNotifications(tester);

      expect(find.byKey(const Key('notif_unread_1')), findsOneWidget);

      await tester.tap(find.byKey(const Key('mark_all_read_button')));
      await tester.pumpAndSettle();

      expect(find.byKey(const Key('notif_unread_1')), findsNothing);
      expect(find.byKey(const Key('notif_unread_2')), findsNothing);
    });

    testWidgets('3.8 - setelah mark all, tombol Tandai Semua hilang',
        (tester) async {
      await _loginAndGoToNotifications(tester);

      await tester.tap(find.byKey(const Key('mark_all_read_button')));
      await tester.pumpAndSettle();

      expect(find.byKey(const Key('mark_all_read_button')), findsNothing);
    });

    testWidgets('3.9 - kembali ke dashboard setelah dari notifikasi',
        (tester) async {
      await _loginAndGoToNotifications(tester);

      await tester.pageBack();
      await tester.pumpAndSettle();

      expect(find.text('Dashboard'), findsOneWidget);
    });

    testWidgets('3.10 - konten notifikasi ditampilkan dengan benar',
        (tester) async {
      await _loginAndGoToNotifications(tester);

      expect(find.text('Hati-hati di persimpangan'), findsOneWidget);
      expect(find.text('Cuaca memburuk hari ini'), findsOneWidget);
      expect(find.text('Pesan lama sudah dibaca'), findsOneWidget);
    });

    testWidgets(
        '3.11 - state perubahan notifikasi persisten saat kembali ke dashboard',
        (tester) async {
      await _loginAndGoToNotifications(tester);

      // Mark all read di halaman notifikasi
      await tester.tap(find.byKey(const Key('mark_all_read_button')));
      await tester.pumpAndSettle();

      // Kembali ke dashboard
      await tester.pageBack();
      await tester.pumpAndSettle();

      // Badge unread harus hilang karena sudah di-mark all
      expect(find.byKey(const Key('dashboard_unread_badge')), findsNothing);
    });

    testWidgets('3.12 - full flow: login → notifikasi → mark all → logout',
        (tester) async {
      await tester.pumpWidget(_IntegrationTestApp());
      await tester.pumpAndSettle();

      // Step 1: Login
      await tester.enterText(
          find.byKey(const Key('email_field')), _fakeUserAccount.email);
      await tester.enterText(
          find.byKey(const Key('password_field')), _fakeUserAccount.password);
      await tester.tap(find.byKey(const Key('login_button')));
      await tester.pumpAndSettle();
      expect(find.text('Dashboard'), findsOneWidget);

      // Step 2: Buka notifikasi
      await tester.tap(find.byKey(const Key('go_notifications_button')));
      await tester.pumpAndSettle();
      expect(find.byKey(const Key('notif_list')), findsOneWidget);

      // Step 3: Mark all read
      await tester.tap(find.byKey(const Key('mark_all_read_button')));
      await tester.pumpAndSettle();
      expect(find.byKey(const Key('notif_unread_1')), findsNothing);

      // Step 4: Kembali ke dashboard
      await tester.pageBack();
      await tester.pumpAndSettle();
      expect(find.text('Dashboard'), findsOneWidget);

      // Step 5: Logout
      await tester.tap(find.byKey(const Key('logout_button')));
      await tester.pumpAndSettle();
      expect(find.byKey(const Key('login_button')), findsOneWidget);
    });
  });
}