import 'package:eatvio_app/core/prefs.dart';
import 'package:eatvio_app/core/theme/theme_helper.dart';
import 'package:eatvio_app/features/registration/models/user_registration_model.dart';
import 'package:eatvio_app/features/registration/presentation/bloc/registration_cubit/registration_cubit.dart';
import 'package:eatvio_app/features/registration/presentation/pages/name_screen.dart';
import 'package:eatvio_app/features/registration/repositories/registration_repository.dart';
import 'package:eatvio_app/generated/l10n.dart';
import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:flutter_localizations/flutter_localizations.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:mockito/annotations.dart';

import 'name_screen_test.mocks.dart';

@GenerateMocks([RegistrationRepository, Prefs])
void main() {
  group('NameScreen', () {
    late MockRegistrationRepository mockRegistrationRepository;
    late RegistrationCubit registrationCubit;

    setUp(() {
      mockRegistrationRepository = MockRegistrationRepository();
      registrationCubit = RegistrationCubit(
        registrationRepository: mockRegistrationRepository,
        prefs: MockPrefs(),
      );
    });

    tearDown(() {
      registrationCubit.close();
    });

    Widget createTestWidget(UserRegistrationSheet sheet) {
      return MaterialApp(
        theme: ThemeHelper().themeData(),
        localizationsDelegates: const [
          S.delegate,
          GlobalMaterialLocalizations.delegate,
          GlobalWidgetsLocalizations.delegate,
          GlobalCupertinoLocalizations.delegate,
        ],
        supportedLocales: const [Locale('ru')],
        home: Scaffold(
          body: BlocProvider<RegistrationCubit>(
            create: (context) => registrationCubit,
            child: NameScreen(sheet: sheet),
          ),
        ),
      );
    }

    testWidgets('displays screen with initial first and last name from sheet', (WidgetTester tester) async {
      const sheet = UserRegistrationSheet(
        firstName: 'John',
        lastName: 'Doe',
        email: 'john@example.com',
        password: 'password123',
        passwordConfirmation: 'password123',
        birthdate: '1990-01-01',
        gender: 'male',
        location: 'Moscow',
        responseBody: '{}',
        lang: 'ru',
        weight: 75,
        height: 180,
        phone: '+1234567890',
        chestCircumference: 100,
        waistCircumference: 80,
        hipCircumference: 90,
        bloodPressureUp: 120,
        bloodPressureDown: 80,
        hasHypo: 0,
        hasHyper: 0,
        aboutAllergy: 'None',
        aboutTakingPils: 'None',
        aboutSportHobbies: 'Running',
        favoriteFoods: 'Pizza',
        unfavoriteFoods: 'Broccoli',
        additionalInfo: 'No additional info',
      );

      await tester.pumpWidget(createTestWidget(sheet));
      await tester.pumpAndSettle();

      expect(find.text('John'), findsOneWidget);
      expect(find.text('Doe'), findsOneWidget);
    });

    testWidgets('displays empty fields when names are empty', (WidgetTester tester) async {
      const sheet = UserRegistrationSheet(
        firstName: '',
        lastName: '',
        email: 'john@example.com',
        password: 'password123',
        passwordConfirmation: 'password123',
        birthdate: '1990-01-01',
        gender: 'male',
        location: 'Moscow',
        responseBody: '{}',
        lang: 'ru',
        weight: 75,
        height: 180,
        phone: '+1234567890',
        chestCircumference: 100,
        waistCircumference: 80,
        hipCircumference: 90,
        bloodPressureUp: 120,
        bloodPressureDown: 80,
        hasHypo: 0,
        hasHyper: 0,
        aboutAllergy: 'None',
        aboutTakingPils: 'None',
        aboutSportHobbies: 'Running',
        favoriteFoods: 'Pizza',
        unfavoriteFoods: 'Broccoli',
        additionalInfo: 'No additional info',
      );

      await tester.pumpWidget(createTestWidget(sheet));
      await tester.pumpAndSettle();

      final textFields = find.byType(TextField);
      expect(textFields, findsNWidgets(2));
    });

    testWidgets('displays hint texts', (WidgetTester tester) async {
      const sheet = UserRegistrationSheet(
        firstName: '',
        lastName: '',
        email: 'john@example.com',
        password: 'password123',
        passwordConfirmation: 'password123',
        birthdate: '1990-01-01',
        gender: 'male',
        location: 'Moscow',
        responseBody: '{}',
        lang: 'ru',
        weight: 75,
        height: 180,
        phone: '+1234567890',
        chestCircumference: 100,
        waistCircumference: 80,
        hipCircumference: 90,
        bloodPressureUp: 120,
        bloodPressureDown: 80,
        hasHypo: 0,
        hasHyper: 0,
        aboutAllergy: 'None',
        aboutTakingPils: 'None',
        aboutSportHobbies: 'Running',
        favoriteFoods: 'Pizza',
        unfavoriteFoods: 'Broccoli',
        additionalInfo: 'No additional info',
      );

      await tester.pumpWidget(createTestWidget(sheet));
      await tester.pumpAndSettle();

      expect(find.text('Введите имя'), findsOneWidget);
      expect(find.text('Введите фамилию'), findsOneWidget);
    });

    testWidgets('updates registration cubit when first name changes', (WidgetTester tester) async {
      const sheet = UserRegistrationSheet(
        firstName: 'John',
        lastName: 'Doe',
        email: 'john@example.com',
        password: 'password123',
        passwordConfirmation: 'password123',
        birthdate: '1990-01-01',
        gender: 'male',
        location: 'Moscow',
        responseBody: '{}',
        lang: 'ru',
        weight: 75,
        height: 180,
        phone: '+1234567890',
        chestCircumference: 100,
        waistCircumference: 80,
        hipCircumference: 90,
        bloodPressureUp: 120,
        bloodPressureDown: 80,
        hasHypo: 0,
        hasHyper: 0,
        aboutAllergy: 'None',
        aboutTakingPils: 'None',
        aboutSportHobbies: 'Running',
        favoriteFoods: 'Pizza',
        unfavoriteFoods: 'Broccoli',
        additionalInfo: 'No additional info',
      );

      await tester.pumpWidget(createTestWidget(sheet));
      await tester.pumpAndSettle();

      final textFields = find.byType(TextField);
      expect(textFields, findsNWidgets(2));

      // Enter new first name
      await tester.enterText(textFields.first, 'Jane');
      await tester.pump();

      // Verify that the cubit state was updated
      expect(registrationCubit.state.sheet.firstName, 'Jane');
    });

    testWidgets('updates registration cubit when last name changes', (WidgetTester tester) async {
      const sheet = UserRegistrationSheet(
        firstName: 'John',
        lastName: 'Doe',
        email: 'john@example.com',
        password: 'password123',
        passwordConfirmation: 'password123',
        birthdate: '1990-01-01',
        gender: 'male',
        location: 'Moscow',
        responseBody: '{}',
        lang: 'ru',
        weight: 75,
        height: 180,
        phone: '+1234567890',
        chestCircumference: 100,
        waistCircumference: 80,
        hipCircumference: 90,
        bloodPressureUp: 120,
        bloodPressureDown: 80,
        hasHypo: 0,
        hasHyper: 0,
        aboutAllergy: 'None',
        aboutTakingPils: 'None',
        aboutSportHobbies: 'Running',
        favoriteFoods: 'Pizza',
        unfavoriteFoods: 'Broccoli',
        additionalInfo: 'No additional info',
      );

      await tester.pumpWidget(createTestWidget(sheet));
      await tester.pumpAndSettle();

      final textFields = find.byType(TextField);
      expect(textFields, findsNWidgets(2));

      // Enter new last name
      await tester.enterText(textFields.last, 'Smith');
      await tester.pump();

      // Verify that the cubit state was updated
      expect(registrationCubit.state.sheet.lastName, 'Smith');
    });
  });
}