import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:motorcycle_dash/features/entitlements/widgets/pro_lock_badge.dart';
import 'package:motorcycle_dash/services/billing/product_catalog.dart';
import 'package:motorcycle_dash/services/entitlements/entitlement_providers.dart';
import 'package:motorcycle_dash/services/entitlements/entitlement_state.dart';
import 'package:motorcycle_dash/services/entitlements/feature_access_service.dart';

void main() {
  TestWidgetsFlutterBinding.ensureInitialized();

  group('FeatureAccessService Matrix Tests', () {
    test(
      'Free tier allows basic cloud backup but denies all Pro-only features',
      () {
        final freeState = EntitlementState.free();
        final service = FeatureAccessService(freeState);

        // Cloud backup is permitted for free users
        expect(service.canAccess(MotorSignalFeature.cloudBackup), isTrue);

        final proOnlyFeatures = MotorSignalFeature.values.where(
          (f) => f != MotorSignalFeature.cloudBackup,
        );
        for (final feature in proOnlyFeatures) {
          expect(
            service.canAccess(feature),
            isFalse,
            reason: 'Free tier must not access ${feature.name}',
          );
        }
      },
    );

    test('Active Pro Monthly grants all features', () {
      final proActiveState = EntitlementState.proMonthlyActive(
        productId: ProductCatalog.proMonthly,
        expiresAt: DateTime.now().add(const Duration(days: 30)),
      );
      final service = FeatureAccessService(proActiveState);

      for (final feature in MotorSignalFeature.values) {
        expect(
          service.canAccess(feature),
          isTrue,
          reason: 'Active Pro Monthly must access ${feature.name}',
        );
      }
    });

    test(
      'Pro Monthly in Grace Period grants all features for rider continuity',
      () {
        final graceState = EntitlementState.normalized(
          plan: MotorSignalPlan.proMonthly,
          status: MotorSignalEntitlementStatus.proMonthlyGrace,
          verificationStatus: EntitlementVerificationStatus.verified,
          source: PurchaseSource.googlePlay,
          productId: ProductCatalog.proMonthly,
          expiresAt: DateTime.now().add(const Duration(days: 2)),
        );
        final service = FeatureAccessService(graceState);

        for (final feature in MotorSignalFeature.values) {
          expect(
            service.canAccess(feature),
            isTrue,
            reason: 'Grace period must access ${feature.name}',
          );
        }
      },
    );

    test('Pro Monthly on Account Hold denies all Pro-only features', () {
      final holdState = EntitlementState.normalized(
        plan: MotorSignalPlan.proMonthly,
        status: MotorSignalEntitlementStatus.proMonthlyAccountHold,
        verificationStatus: EntitlementVerificationStatus.verified,
        source: PurchaseSource.googlePlay,
        productId: ProductCatalog.proMonthly,
      );
      final service = FeatureAccessService(holdState);

      final proOnlyFeatures = MotorSignalFeature.values.where(
        (f) => f != MotorSignalFeature.cloudBackup,
      );
      for (final feature in proOnlyFeatures) {
        expect(
          service.canAccess(feature),
          isFalse,
          reason: 'Account hold must deny ${feature.name}',
        );
      }
    });

    test('Pro Monthly Paused denies all Pro-only features', () {
      final pausedState = EntitlementState.normalized(
        plan: MotorSignalPlan.proMonthly,
        status: MotorSignalEntitlementStatus.proMonthlyPaused,
        verificationStatus: EntitlementVerificationStatus.verified,
        source: PurchaseSource.googlePlay,
        productId: ProductCatalog.proMonthly,
      );
      final service = FeatureAccessService(pausedState);

      final proOnlyFeatures = MotorSignalFeature.values.where(
        (f) => f != MotorSignalFeature.cloudBackup,
      );
      for (final feature in proOnlyFeatures) {
        expect(
          service.canAccess(feature),
          isFalse,
          reason: 'Paused subscription must deny ${feature.name}',
        );
      }
    });

    test('Pro Monthly Expired denies all Pro-only features', () {
      final expiredState = EntitlementState.normalized(
        plan: MotorSignalPlan.proMonthly,
        status: MotorSignalEntitlementStatus.proMonthlyExpired,
        verificationStatus: EntitlementVerificationStatus.expired,
        source: PurchaseSource.googlePlay,
        productId: ProductCatalog.proMonthly,
      );
      final service = FeatureAccessService(expiredState);

      final proOnlyFeatures = MotorSignalFeature.values.where(
        (f) => f != MotorSignalFeature.cloudBackup,
      );
      for (final feature in proOnlyFeatures) {
        expect(
          service.canAccess(feature),
          isFalse,
          reason: 'Expired subscription must deny ${feature.name}',
        );
      }
    });

    test('Pro Lifetime grants all features permanently', () {
      final lifetimeState = EntitlementState.proLifetime(
        productId: ProductCatalog.proLifetime,
      );
      final service = FeatureAccessService(lifetimeState);

      for (final feature in MotorSignalFeature.values) {
        expect(
          service.canAccess(feature),
          isTrue,
          reason: 'Pro Lifetime must access ${feature.name}',
        );
      }
    });
  });

  group('UI Lock & Badge Widgets Tests', () {
    testWidgets('ProBadge renders with PRO label and styling', (tester) async {
      await tester.pumpWidget(
        const MaterialApp(home: Scaffold(body: ProBadge())),
      );

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

    testWidgets(
      'ProLockedRow renders when user is Free and hides when user is Pro',
      (tester) async {
        // 1. When user is Free, row is visible
        await tester.pumpWidget(
          ProviderScope(
            overrides: [
              entitlementProvider.overrideWithValue(
                const EntitlementState.free(),
              ),
            ],
            child: const MaterialApp(
              home: Scaffold(
                body: ProLockedRow(
                  feature: MotorSignalFeature.csvExport,
                  title: Text('CSV Export'),
                  subtitle: Text('Export telemetry data as spreadsheet'),
                ),
              ),
            ),
          ),
        );

        expect(find.text('CSV Export'), findsOneWidget);
        expect(
          find.text('Export telemetry data as spreadsheet'),
          findsOneWidget,
        );
        expect(find.text('PRO'), findsOneWidget);
        expect(find.byIcon(Icons.lock_outline), findsOneWidget);

        // 2. When user is Pro, row hides (SizedBox.shrink)
        final proState = EntitlementState.proLifetime(
          productId: ProductCatalog.proLifetime,
        );
        await tester.pumpWidget(
          ProviderScope(
            overrides: [entitlementProvider.overrideWithValue(proState)],
            child: const MaterialApp(
              home: Scaffold(
                body: ProLockedRow(
                  feature: MotorSignalFeature.csvExport,
                  title: Text('CSV Export'),
                  subtitle: Text('Export telemetry data as spreadsheet'),
                ),
              ),
            ),
          ),
        );

        expect(find.text('CSV Export'), findsNothing);
        expect(find.text('PRO'), findsNothing);
      },
    );

    test(
      'FeatureBenefitInfo provides title and description for all features',
      () {
        for (final feature in MotorSignalFeature.values) {
          final info = FeatureBenefitInfo.forFeature(feature);
          expect(info.title, isNotEmpty);
          expect(info.description, isNotEmpty);
          expect(info.icon, isNotNull);
        }
      },
    );
  });
}