import 'package:flutter_test/flutter_test.dart';
import 'package:lanebow/models/subscription_model.dart';

void main() {
  group('Subscription 모델 테스트', () {
    test('fromJson 메서드가 JSON 데이터를 올바르게 변환해야 함', () {
      // given
      final json = {
        'id': 'sub_123',
        'userId': 'user_123',
        'clubId': 'club_123',
        'planType': 'premium',
        'status': 'active',
        'startDate': '2023-01-01T00:00:00.000Z',
        'endDate': '2024-01-01T00:00:00.000Z',
        'price': 19900,
        'currency': 'KRW',
        'autoRenew': true,
        'features': {'feature1': true, 'feature2': false},
        'paymentMethod': 'card',
        'transactionId': 'tx_123',
        'createdAt': '2023-01-01T00:00:00.000Z',
        'updatedAt': '2023-01-01T00:00:00.000Z',
      };

      // when
      final subscription = Subscription.fromJson(json);

      // then
      expect(subscription.id, 'sub_123');
      expect(subscription.userId, 'user_123');
      expect(subscription.clubId, 'club_123');
      expect(subscription.planType, SubscriptionPlanType.premium);
      expect(subscription.status, SubscriptionStatus.active);
      expect(subscription.startDate, DateTime.parse('2023-01-01T00:00:00.000Z'));
      expect(subscription.endDate, DateTime.parse('2024-01-01T00:00:00.000Z'));
      expect(subscription.price, 19900);
      expect(subscription.currency, 'KRW');
      expect(subscription.autoRenew, true);
      expect(subscription.features, {'feature1': true, 'feature2': false});
      expect(subscription.paymentMethod, 'card');
      expect(subscription.transactionId, 'tx_123');
      expect(subscription.createdAt, DateTime.parse('2023-01-01T00:00:00.000Z'));
      expect(subscription.updatedAt, DateTime.parse('2023-01-01T00:00:00.000Z'));
    });

    test('fromJson 메서드가 알 수 없는 planType과 status를 기본값으로 처리해야 함', () {
      // given
      final json = {
        'id': 'sub_123',
        'userId': 'user_123',
        'planType': 'unknown_plan',
        'status': 'unknown_status',
        'startDate': '2023-01-01T00:00:00.000Z',
        'endDate': '2024-01-01T00:00:00.000Z',
        'price': 19900,
        'currency': 'KRW',
        'autoRenew': true,
        'createdAt': '2023-01-01T00:00:00.000Z',
        'updatedAt': '2023-01-01T00:00:00.000Z',
      };

      // when
      final subscription = Subscription.fromJson(json);

      // then
      expect(subscription.planType, SubscriptionPlanType.free); // 기본값
      expect(subscription.status, SubscriptionStatus.expired); // 기본값
    });

    test('toJson 메서드가 Subscription 객체를 JSON으로 올바르게 변환해야 함', () {
      // given
      final subscription = Subscription(
        id: 'sub_123',
        userId: 'user_123',
        clubId: 'club_123',
        planType: SubscriptionPlanType.premium,
        status: SubscriptionStatus.active,
        startDate: DateTime.parse('2023-01-01T00:00:00.000Z'),
        endDate: DateTime.parse('2024-01-01T00:00:00.000Z'),
        price: 19900,
        currency: 'KRW',
        autoRenew: true,
        features: {'feature1': true, 'feature2': false},
        paymentMethod: 'card',
        transactionId: 'tx_123',
        createdAt: DateTime.parse('2023-01-01T00:00:00.000Z'),
        updatedAt: DateTime.parse('2023-01-01T00:00:00.000Z'),
      );

      // when
      final json = subscription.toJson();

      // then
      expect(json['id'], 'sub_123');
      expect(json['userId'], 'user_123');
      expect(json['clubId'], 'club_123');
      expect(json['planType'], 'premium');
      expect(json['status'], 'active');
      expect(json['startDate'], '2023-01-01T00:00:00.000Z');
      expect(json['endDate'], '2024-01-01T00:00:00.000Z');
      expect(json['price'], 19900);
      expect(json['currency'], 'KRW');
      expect(json['autoRenew'], true);
      expect(json['features'], {'feature1': true, 'feature2': false});
      expect(json['paymentMethod'], 'card');
      expect(json['transactionId'], 'tx_123');
      expect(json['createdAt'], '2023-01-01T00:00:00.000Z');
      expect(json['updatedAt'], '2023-01-01T00:00:00.000Z');
    });

    test('isActive getter가 올바르게 동작해야 함', () {
      // given
      final activeSubscription = Subscription(
        id: 'sub_123',
        userId: 'user_123',
        planType: SubscriptionPlanType.premium,
        status: SubscriptionStatus.active,
        startDate: DateTime.now().subtract(const Duration(days: 10)),
        endDate: DateTime.now().add(const Duration(days: 10)),
        price: 19900,
        currency: 'KRW',
        autoRenew: true,
        createdAt: DateTime.now(),
        updatedAt: DateTime.now(),
      );

      final canceledSubscription = Subscription(
        id: 'sub_123',
        userId: 'user_123',
        planType: SubscriptionPlanType.premium,
        status: SubscriptionStatus.canceled,
        startDate: DateTime.now().subtract(const Duration(days: 10)),
        endDate: DateTime.now().add(const Duration(days: 10)),
        price: 19900,
        currency: 'KRW',
        autoRenew: false,
        createdAt: DateTime.now(),
        updatedAt: DateTime.now(),
      );

      // then
      expect(activeSubscription.isActive, true);
      expect(canceledSubscription.isActive, false);
    });

    test('isExpired getter가 올바르게 동작해야 함', () {
      // given
      final expiredByStatus = Subscription(
        id: 'sub_123',
        userId: 'user_123',
        planType: SubscriptionPlanType.premium,
        status: SubscriptionStatus.expired,
        startDate: DateTime.now().subtract(const Duration(days: 20)),
        endDate: DateTime.now().add(const Duration(days: 10)), // 아직 만료일이 지나지 않았지만 상태가 expired
        price: 19900,
        currency: 'KRW',
        autoRenew: false,
        createdAt: DateTime.now(),
        updatedAt: DateTime.now(),
      );

      final expiredByDate = Subscription(
        id: 'sub_123',
        userId: 'user_123',
        planType: SubscriptionPlanType.premium,
        status: SubscriptionStatus.active,
        startDate: DateTime.now().subtract(const Duration(days: 20)),
        endDate: DateTime.now().subtract(const Duration(days: 1)), // 만료일이 지남
        price: 19900,
        currency: 'KRW',
        autoRenew: true,
        createdAt: DateTime.now(),
        updatedAt: DateTime.now(),
      );

      final activeSubscription = Subscription(
        id: 'sub_123',
        userId: 'user_123',
        planType: SubscriptionPlanType.premium,
        status: SubscriptionStatus.active,
        startDate: DateTime.now().subtract(const Duration(days: 10)),
        endDate: DateTime.now().add(const Duration(days: 10)),
        price: 19900,
        currency: 'KRW',
        autoRenew: true,
        createdAt: DateTime.now(),
        updatedAt: DateTime.now(),
      );

      // then
      expect(expiredByStatus.isExpired, true);
      expect(expiredByDate.isExpired, true);
      expect(activeSubscription.isExpired, false);
    });

    test('daysLeft getter가 올바르게 동작해야 함', () {
      // given
      final expiredSubscription = Subscription(
        id: 'sub_123',
        userId: 'user_123',
        planType: SubscriptionPlanType.premium,
        status: SubscriptionStatus.expired,
        startDate: DateTime.now().subtract(const Duration(days: 20)),
        endDate: DateTime.now().add(const Duration(days: 10)),
        price: 19900,
        currency: 'KRW',
        autoRenew: false,
        createdAt: DateTime.now(),
        updatedAt: DateTime.now(),
      );

      final activeSubscription = Subscription(
        id: 'sub_123',
        userId: 'user_123',
        planType: SubscriptionPlanType.premium,
        status: SubscriptionStatus.active,
        startDate: DateTime.now().subtract(const Duration(days: 10)),
        endDate: DateTime.now().add(const Duration(days: 10)),
        price: 19900,
        currency: 'KRW',
        autoRenew: true,
        createdAt: DateTime.now(),
        updatedAt: DateTime.now(),
      );

      // then
      expect(expiredSubscription.daysLeft, 0); // 만료된 구독은 항상 0일 반환
      expect(activeSubscription.daysLeft >= 9 && activeSubscription.daysLeft <= 10, true); // 테스트 실행 시점에 따라 9일 또는 10일이 될 수 있음
    });

    test('planName getter가 올바르게 동작해야 함', () {
      // given
      final freeSubscription = Subscription(
        id: 'sub_123',
        userId: 'user_123',
        planType: SubscriptionPlanType.free,
        status: SubscriptionStatus.active,
        startDate: DateTime.now(),
        endDate: DateTime.now().add(const Duration(days: 30)),
        price: 0,
        currency: 'KRW',
        autoRenew: true,
        createdAt: DateTime.now(),
        updatedAt: DateTime.now(),
      );

      final basicSubscription = Subscription(
        id: 'sub_123',
        userId: 'user_123',
        planType: SubscriptionPlanType.basic,
        status: SubscriptionStatus.active,
        startDate: DateTime.now(),
        endDate: DateTime.now().add(const Duration(days: 30)),
        price: 9900,
        currency: 'KRW',
        autoRenew: true,
        createdAt: DateTime.now(),
        updatedAt: DateTime.now(),
      );

      final premiumSubscription = Subscription(
        id: 'sub_123',
        userId: 'user_123',
        planType: SubscriptionPlanType.premium,
        status: SubscriptionStatus.active,
        startDate: DateTime.now(),
        endDate: DateTime.now().add(const Duration(days: 30)),
        price: 19900,
        currency: 'KRW',
        autoRenew: true,
        createdAt: DateTime.now(),
        updatedAt: DateTime.now(),
      );

      final enterpriseSubscription = Subscription(
        id: 'sub_123',
        userId: 'user_123',
        planType: SubscriptionPlanType.enterprise,
        status: SubscriptionStatus.active,
        startDate: DateTime.now(),
        endDate: DateTime.now().add(const Duration(days: 30)),
        price: 49900,
        currency: 'KRW',
        autoRenew: true,
        createdAt: DateTime.now(),
        updatedAt: DateTime.now(),
      );

      // then
      expect(freeSubscription.planName, '무료');
      expect(basicSubscription.planName, '기본');
      expect(premiumSubscription.planName, '프리미엄');
      expect(enterpriseSubscription.planName, '기업용');
    });
  });

  group('SubscriptionPlan 모델 테스트', () {
    test('fromJson 메서드가 JSON 데이터를 올바르게 변환해야 함', () {
      // given
      final json = {
        'type': 'premium',
        'name': '프리미엄',
        'description': '대규모 클럽을 위한 고급 기능',
        'monthlyPrice': 19900,
        'yearlyPrice': 199000,
        'currency': 'KRW',
        'features': ['무제한 회원 관리', '고급 통계 및 분석'],
        'maxMembers': 100,
        'maxEvents': 100,
        'hasAdvancedStats': true,
        'hasCustomization': true,
        'hasPriority': true,
      };

      // when
      final plan = SubscriptionPlan.fromJson(json);

      // then
      expect(plan.type, SubscriptionPlanType.premium);
      expect(plan.name, '프리미엄');
      expect(plan.description, '대규모 클럽을 위한 고급 기능');
      expect(plan.monthlyPrice, 19900);
      expect(plan.yearlyPrice, 199000);
      expect(plan.currency, 'KRW');
      expect(plan.features, ['무제한 회원 관리', '고급 통계 및 분석']);
      expect(plan.maxMembers, 100);
      expect(plan.maxEvents, 100);
      expect(plan.hasAdvancedStats, true);
      expect(plan.hasCustomization, true);
      expect(plan.hasPriority, true);
    });

    test('fromJson 메서드가 알 수 없는 type을 기본값으로 처리해야 함', () {
      // given
      final json = {
        'type': 'unknown_type',
        'name': '알 수 없는 플랜',
        'description': '설명',
        'monthlyPrice': 0,
        'yearlyPrice': 0,
        'currency': 'KRW',
        'features': [],
        'maxMembers': 0,
        'maxEvents': 0,
        'hasAdvancedStats': false,
        'hasCustomization': false,
        'hasPriority': false,
      };

      // when
      final plan = SubscriptionPlan.fromJson(json);

      // then
      expect(plan.type, SubscriptionPlanType.free); // 기본값
    });

    test('fromJson 메서드가 부울 필드에 대한 기본값을 설정해야 함', () {
      // given
      final json = {
        'type': 'basic',
        'name': '기본',
        'description': '설명',
        'monthlyPrice': 9900,
        'yearlyPrice': 99000,
        'currency': 'KRW',
        'features': ['기능1', '기능2'],
        'maxMembers': 30,
        'maxEvents': 20,
        // 부울 필드 생략
      };

      // when
      final plan = SubscriptionPlan.fromJson(json);

      // then
      expect(plan.hasAdvancedStats, false); // 기본값
      expect(plan.hasCustomization, false); // 기본값
      expect(plan.hasPriority, false); // 기본값
    });

    test('toJson 메서드가 SubscriptionPlan 객체를 JSON으로 올바르게 변환해야 함', () {
      // given
      final plan = SubscriptionPlan(
        type: SubscriptionPlanType.premium,
        name: '프리미엄',
        description: '대규모 클럽을 위한 고급 기능',
        monthlyPrice: 19900,
        yearlyPrice: 199000,
        currency: 'KRW',
        features: ['무제한 회원 관리', '고급 통계 및 분석'],
        maxMembers: 100,
        maxEvents: 100,
        hasAdvancedStats: true,
        hasCustomization: true,
        hasPriority: true,
      );

      // when
      final json = plan.toJson();

      // then
      expect(json['type'], 'premium');
      expect(json['name'], '프리미엄');
      expect(json['description'], '대규모 클럽을 위한 고급 기능');
      expect(json['monthlyPrice'], 19900);
      expect(json['yearlyPrice'], 199000);
      expect(json['currency'], 'KRW');
      expect(json['features'], ['무제한 회원 관리', '고급 통계 및 분석']);
      expect(json['maxMembers'], 100);
      expect(json['maxEvents'], 100);
      expect(json['hasAdvancedStats'], true);
      expect(json['hasCustomization'], true);
      expect(json['hasPriority'], true);
    });

    test('getDefaultPlans 메서드가 기본 플랜 목록을 반환해야 함', () {
      // when
      final plans = SubscriptionPlan.getDefaultPlans();

      // then
      expect(plans.length, 4); // 무료, 기본, 프리미엄, 기업용 4가지 플랜
      
      // 무료 플랜 확인
      final freePlan = plans.firstWhere((p) => p.type == SubscriptionPlanType.free);
      expect(freePlan.name, '무료');
      expect(freePlan.monthlyPrice, 0);
      expect(freePlan.maxMembers, 10);
      
      // 기본 플랜 확인
      final basicPlan = plans.firstWhere((p) => p.type == SubscriptionPlanType.basic);
      expect(basicPlan.name, '기본');
      expect(basicPlan.monthlyPrice, 9900);
      expect(basicPlan.maxMembers, 30);
      
      // 프리미엄 플랜 확인
      final premiumPlan = plans.firstWhere((p) => p.type == SubscriptionPlanType.premium);
      expect(premiumPlan.name, '프리미엄');
      expect(premiumPlan.monthlyPrice, 19900);
      expect(premiumPlan.maxMembers, 100);
      
      // 기업용 플랜 확인
      final enterprisePlan = plans.firstWhere((p) => p.type == SubscriptionPlanType.enterprise);
      expect(enterprisePlan.name, '기업용');
      expect(enterprisePlan.monthlyPrice, 49900);
      expect(enterprisePlan.maxMembers, 1000);
    });
  });
}