import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:tatlock_ui/features/front_hall/presentation/pages/front_hall_page.dart';
import 'package:tatlock_ui/shared/widgets/air_quality_widget.dart';
import 'package:tatlock_ui/shared/widgets/forecast_widget.dart';
import 'package:tatlock_ui/shared/widgets/sun_position_widget.dart';
import 'package:tatlock_ui/shared/widgets/weather_widget.dart';

import '../../harness/screen_sizes.dart';
import '../../harness/test_harness.dart';

void main() {
  final harness = TestHarness();

  setUp(() => harness.setUp());
  tearDown(() => harness.tearDown());

  // Set larger window size and suppress overflow errors
  Future<void> setLargeWindowSize(WidgetTester tester) async {
    tester.view.physicalSize = const Size(1400, 900);
    tester.view.devicePixelRatio = 1.0;
    addTearDown(() => tester.view.resetPhysicalSize());

    // Suppress overflow errors - not what we're testing
    final originalOnError = FlutterError.onError;
    FlutterError.onError = (details) {
      if (details.exceptionAsString().contains('overflowed')) {
        return;
      }
      originalOnError?.call(details);
    };
    addTearDown(() => FlutterError.onError = originalOnError);
  }

  group('Environment Widgets', () {
    testWidgets('displays Sun Position widget', (tester) async {
      await setLargeWindowSize(tester);
      harness.givenAuthenticatedUser();
      harness.givenQuickLinks();
      harness.givenSystemStats();
      harness.givenEnvironment();

      await tester.pumpWidget(harness.wrap(const FrontHallPage()));
      await tester.pumpAndSettle();

      expect(find.byType(SunPositionWidget), findsOneWidget);
      expect(find.text('Sun Position'), findsOneWidget);
    });

    testWidgets('displays Weather widget', (tester) async {
      await setLargeWindowSize(tester);
      harness.givenAuthenticatedUser();
      harness.givenQuickLinks();
      harness.givenSystemStats();
      harness.givenEnvironment();

      await tester.pumpWidget(harness.wrap(const FrontHallPage()));
      await tester.pumpAndSettle();

      expect(find.byType(WeatherWidget), findsOneWidget);
    });

    testWidgets('displays Forecast widget', (tester) async {
      await setLargeWindowSize(tester);
      harness.givenAuthenticatedUser();
      harness.givenQuickLinks();
      harness.givenSystemStats();
      harness.givenEnvironment();

      await tester.pumpWidget(harness.wrap(const FrontHallPage()));
      await tester.pumpAndSettle();

      expect(find.byType(ForecastWidget), findsOneWidget);
      expect(find.text('Forecast'), findsOneWidget);
    });

    testWidgets('displays Air Quality widget when data available',
        (tester) async {
      await setLargeWindowSize(tester);
      harness.givenAuthenticatedUser();
      harness.givenQuickLinks();
      harness.givenSystemStats();
      harness.givenEnvironment(); // Has air quality data

      await tester.pumpWidget(harness.wrap(const FrontHallPage()));
      await tester.pumpAndSettle();

      expect(find.byType(AirQualityWidget), findsOneWidget);
      expect(find.text('Air Quality'), findsOneWidget);
    });

    testWidgets('hides Air Quality widget when no data', (tester) async {
      await setLargeWindowSize(tester);
      harness.givenAuthenticatedUser();
      harness.givenQuickLinks();
      harness.givenSystemStats();
      harness.givenEnvironmentNoAirQuality(); // No air quality data

      await tester.pumpWidget(harness.wrap(const FrontHallPage()));
      await tester.pumpAndSettle();

      // Air Quality widget should not be present
      expect(find.byType(AirQualityWidget), findsNothing);
    });

    testWidgets('calls environment API on mount', (tester) async {
      await setLargeWindowSize(tester);
      harness.givenAuthenticatedUser();
      harness.givenQuickLinks();
      harness.givenSystemStats();
      harness.givenEnvironment();

      await tester.pumpWidget(harness.wrap(const FrontHallPage()));
      await tester.pumpAndSettle();

      harness.verifyApiCalled('GET', '/tools/environment');
    });

    testWidgets('displays error state when environment fails', (tester) async {
      await setLargeWindowSize(tester);
      harness.givenAuthenticatedUser();
      harness.givenQuickLinks();
      harness.givenSystemStats();
      harness.givenApiError(
        method: 'GET',
        path: '/tools/environment',
        statusCode: 500,
        message: 'Internal server error',
      );

      await tester.pumpWidget(harness.wrap(const FrontHallPage()));
      await tester.pumpAndSettle();

      // Should show environment error message or error indicator
      expect(
        find.text('Failed to load environment data').evaluate().isNotEmpty ||
            find.byIcon(Icons.error_outline).evaluate().isNotEmpty,
        isTrue,
        reason: 'Should display environment error',
      );
    });

    testWidgets('displays sunrise and sunset times', (tester) async {
      await setLargeWindowSize(tester);
      harness.givenAuthenticatedUser();
      harness.givenQuickLinks();
      harness.givenSystemStats();
      harness.givenEnvironment();

      await tester.pumpWidget(harness.wrap(const FrontHallPage()));
      await tester.pumpAndSettle();

      // Should display sunrise/sunset labels
      expect(find.text('Sunrise'), findsOneWidget);
      expect(find.text('Sunset'), findsOneWidget);
    });

    testWidgets('displays daylight duration', (tester) async {
      await setLargeWindowSize(tester);
      harness.givenAuthenticatedUser();
      harness.givenQuickLinks();
      harness.givenSystemStats();
      harness.givenEnvironment();

      await tester.pumpWidget(harness.wrap(const FrontHallPage()));
      await tester.pumpAndSettle();

      // Should display daylight label
      expect(find.text('Daylight'), findsOneWidget);
    });
  });

  group('Environment Widgets Responsive', () {
    testWidgets('renders environment widgets at desktop size', (tester) async {
      configureScreenSize(tester, ScreenSizes.desktopLarge);
      harness.givenAuthenticatedUser();
      harness.givenQuickLinks();
      harness.givenSystemStats();
      harness.givenEnvironment();

      await tester.pumpWidget(harness.wrap(const FrontHallPage()));
      await tester.pumpAndSettle();

      expect(find.byType(SunPositionWidget), findsOneWidget);
      expect(find.byType(WeatherWidget), findsOneWidget);
      expect(find.byType(ForecastWidget), findsOneWidget);
    });

    testWidgets('renders environment widgets at tablet size', (tester) async {
      configureScreenSize(tester, ScreenSizes.tabletLandscape);
      harness.givenAuthenticatedUser();
      harness.givenQuickLinks();
      harness.givenSystemStats();
      harness.givenEnvironment();

      await tester.pumpWidget(harness.wrap(const FrontHallPage()));
      await tester.pumpAndSettle();

      expect(find.byType(SunPositionWidget), findsOneWidget);
      expect(find.byType(WeatherWidget), findsOneWidget);
      expect(find.byType(ForecastWidget), findsOneWidget);
    });

    testWidgets('renders environment widgets at mobile size', (tester) async {
      configureScreenSize(tester, ScreenSizes.mobile);
      harness.givenAuthenticatedUser();
      harness.givenQuickLinks();
      harness.givenSystemStats();
      harness.givenEnvironment();

      await tester.pumpWidget(harness.wrap(const FrontHallPage()));
      await tester.pumpAndSettle();

      // Page should render without crashing at mobile size
      // Widgets may be below the fold due to scrolling
      expect(find.byType(FrontHallPage), findsOneWidget);
    });
  });
}