18278715334@163.com

internal/application/product/subscription_application_service.go

@@ -20,6 +20,7 @@ type SubscriptionApplicationService interface {
 	// 我的订阅（用户专用）
 	ListMySubscriptions(ctx context.Context, userID string, query *queries.ListSubscriptionsQuery) (*responses.SubscriptionListResponse, error)
 	GetMySubscriptionStats(ctx context.Context, userID string) (*responses.SubscriptionStatsResponse, error)
+	CancelMySubscription(ctx context.Context, userID string, subscriptionID string) error
 
 	// 业务查询
 	GetUserSubscriptions(ctx context.Context, query *queries.GetUserSubscriptionsQuery) ([]*responses.SubscriptionInfoResponse, error)

internal/application/product/subscription_application_service_impl.go

@@ -304,6 +304,38 @@ func (s *SubscriptionApplicationServiceImpl) GetMySubscriptionStats(ctx context.
 	}, nil
 }
 
+// CancelMySubscription 取消我的订阅
+// 业务流程：1. 验证订阅是否属于当前用户 2. 取消订阅
+func (s *SubscriptionApplicationServiceImpl) CancelMySubscription(ctx context.Context, userID string, subscriptionID string) error {
+	// 1. 获取订阅信息
+	subscription, err := s.productSubscriptionService.GetSubscriptionByID(ctx, subscriptionID)
+	if err != nil {
+		s.logger.Error("获取订阅信息失败", zap.String("subscription_id", subscriptionID), zap.Error(err))
+		return fmt.Errorf("订阅不存在")
+	}
+
+	// 2. 验证订阅是否属于当前用户
+	if subscription.UserID != userID {
+		s.logger.Warn("用户尝试取消不属于自己的订阅",
+			zap.String("user_id", userID),
+			zap.String("subscription_id", subscriptionID),
+			zap.String("subscription_user_id", subscription.UserID))
+		return fmt.Errorf("无权取消此订阅")
+	}
+
+	// 3. 取消订阅（软删除）
+	if err := s.productSubscriptionService.CancelSubscription(ctx, subscriptionID); err != nil {
+		s.logger.Error("取消订阅失败", zap.String("subscription_id", subscriptionID), zap.Error(err))
+		return fmt.Errorf("取消订阅失败: %w", err)
+	}
+
+	s.logger.Info("用户取消订阅成功",
+		zap.String("user_id", userID),
+		zap.String("subscription_id", subscriptionID))
+
+	return nil
+}
+
 // convertToSubscriptionInfoResponse 转换为订阅信息响应
 func (s *SubscriptionApplicationServiceImpl) convertToSubscriptionInfoResponse(subscription *entities.Subscription) *responses.SubscriptionInfoResponse {
 	// 查询用户信息