import 'package:cyberhybridhub/models/app_user.dart';
import 'package:cyberhybridhub/repositories/question_source_config_repository.dart';
import 'package:cyberhybridhub/screens/home_screen.dart';
import 'package:cyberhybridhub/widgets/question_source_settings_sheet.dart';
import 'package:cyberhybridhub/services/questions_hub_service.dart';
import 'package:cyberhybridhub/theme/app_theme.dart';
import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';

void main() {
  setUp(() {
    QuestionSourceConfigRepository.instance.resetToDefaults();
  });

  testWidgets('gear icon opens question source settings dialog', (
    WidgetTester tester,
  ) async {
    final QuestionsHubService hub = QuestionsHubService.instance;
    hub.hasPendingQuestion.value = false;
    hub.pendingQuestionCount.value = 0;

    addTearDown(() {
      hub.hasPendingQuestion.value = false;
      hub.pendingQuestionCount.value = 0;
    });

    await tester.pumpWidget(
      MaterialApp(
        theme: buildAppTheme(),
        home: const HomeScreen(
          user: AppUser(uid: 'u1', displayName: 'Test User'),
        ),
      ),
    );

    expect(find.byKey(const Key('question-source-settings-button')), findsOneWidget);

    await tester.tap(find.byKey(const Key('question-source-settings-button')));
    await tester.pumpAndSettle();

    expect(find.byKey(const Key('question-source-settings-dialog')), findsOneWidget);
    expect(find.text('Question sources'), findsOneWidget);
    expect(find.text('Market question'), findsOneWidget);
    expect(find.text('Spelling'), findsOneWidget);
    expect(find.text('Coming soon'), findsNothing);
    expect(find.text('Geography'), findsNothing);
    expect(find.text('Weather'), findsNothing);
    expect(find.text('Trading'), findsNothing);
    expect(
      find.byKey(const Key('question-source-enabled-spelling')),
      findsOneWidget,
    );
    final Switch spellingSwitch = tester.widget<Switch>(
      find.byKey(const Key('question-source-enabled-spelling')),
    );
    expect(spellingSwitch.onChanged, isNotNull);
    expect(
      find.byKey(const Key('question-source-ratio-spelling')),
      findsOneWidget,
    );
    expect(
      find.byKey(const Key('question-source-edit-spelling')),
      findsOneWidget,
    );
    expect(
      find.byKey(const Key('question-source-reset-spelling')),
      findsOneWidget,
    );
  });

  testWidgets('spelling edit opens spelling word list screen', (
    WidgetTester tester,
  ) async {
    await tester.pumpWidget(
      MaterialApp(
        theme: buildAppTheme(),
        onGenerateRoute: (RouteSettings settings) {
          if (settings.name == '/spelling-words') {
            return MaterialPageRoute<void>(
              settings: settings,
              builder: (_) => const Scaffold(
                body: Center(child: Text('Spelling words page')),
              ),
            );
          }
          return null;
        },
        home: Builder(
          builder: (BuildContext context) {
            return Scaffold(
              body: Center(
                child: FilledButton(
                  onPressed: () => QuestionSourceSettingsSheet.show(context),
                  child: const Text('Open'),
                ),
              ),
            );
          },
        ),
      ),
    );

    await tester.tap(find.text('Open'));
    await tester.pumpAndSettle();
    await tester.tap(find.byKey(const Key('question-source-edit-spelling')));
    await tester.pumpAndSettle();

    expect(find.text('Spelling words page'), findsOneWidget);
  });

  testWidgets('saving question source settings updates repository', (
    WidgetTester tester,
  ) async {
    await tester.pumpWidget(
      MaterialApp(
        theme: buildAppTheme(),
        home: const HomeScreen(
          user: AppUser(uid: 'u1', displayName: 'Test User'),
        ),
      ),
    );

    await tester.tap(find.byKey(const Key('question-source-settings-button')));
    await tester.pumpAndSettle();

    await tester.drag(
      find.byKey(const Key('question-source-ratio-market_history')),
      const Offset(80, 0),
    );
    await tester.pumpAndSettle();

    await tester.tap(find.byKey(const Key('question-source-settings-save')));
    await tester.pumpAndSettle();

    expect(
      QuestionSourceConfigRepository.instance.current
          .firstWhere((source) => source.id == 'market_history')
          .ratio,
      isNot(50),
    );
    expect(find.byKey(const Key('question-source-settings-dialog')), findsNothing);
  });

  testWidgets('Question Source config top bar appears when panel is open and configures source preferences', (
    WidgetTester tester,
  ) async {
    final QuestionsHubService hub = QuestionsHubService.instance;
    hub.hasPendingQuestion.value = true;
    hub.pendingQuestionCount.value = 1;
    hub.questionPanelOpen.value = true;

    addTearDown(() {
      hub.hasPendingQuestion.value = false;
      hub.pendingQuestionCount.value = 0;
      hub.questionPanelOpen.value = false;
      QuestionSourceConfigRepository.instance.resetToDefaults();
    });

    await tester.pumpWidget(
      MaterialApp(
        theme: buildAppTheme(),
        home: const HomeScreen(
          user: AppUser(uid: 'u1', displayName: 'Test User'),
        ),
      ),
    );

    // Verify config top bar is displayed when panel is open.
    expect(find.byKey(const Key('question-source-config-top-bar')), findsOneWidget);
    expect(find.text('Question source configuration'), findsOneWidget);
    expect(find.text('Market question: 50%, Spelling: 50%'), findsOneWidget);

    // Click on the Configure button to open settings dialog.
    expect(find.byKey(const Key('question-source-config-top-bar-button')), findsOneWidget);
    await tester.tap(find.byKey(const Key('question-source-config-top-bar-button')));
    await tester.pumpAndSettle();

    // Verify settings dialog is open.
    expect(find.byKey(const Key('question-source-settings-dialog')), findsOneWidget);

    // Close settings dialog.
    await tester.tap(find.byKey(const Key('question-source-settings-close')));
    await tester.pumpAndSettle();
    expect(find.byKey(const Key('question-source-settings-dialog')), findsNothing);

    // Close panel and verify top bar is gone.
    hub.closeQuestionPanel();
    await tester.pumpAndSettle();
    expect(find.byKey(const Key('question-source-config-top-bar')), findsNothing);
  });
}