feat(P2): 粉丝/关注数 + 用户主页统计 (getProfile/getCounts)

backend/internal/account/entity.go

@@ -65,3 +65,15 @@ type UpdateProfileRequest struct {
 type RefreshRequest struct {
 	RefreshToken string `json:"refresh_token"`
 }
+
+type GetProfileRequest struct {
+	AccountID uint `json:"account_id"`
+}
+
+type GetProfileResponse struct {
+	Account      FindByIDResponse `json:"account"`
+	VideoCount   int64            `json:"video_count"`
+	TotalLikes   int64            `json:"total_likes"`
+	FollowerCount int64           `json:"follower_count"`
+	VloggerCount int64            `json:"vlogger_count"`
+}

backend/internal/http/router.go

@@ -126,7 +126,35 @@ func SetRouter(db *gorm.DB, cache *rediscache.Client, rmq *rabbitmq.RabbitMQ) *g
 		protectedSocialGroup.POST("/unfollow", socialLimiter, socialHandler.Unfollow)
 		protectedSocialGroup.POST("/getAllFollowers", socialHandler.GetAllFollowers)
 		protectedSocialGroup.POST("/getAllVloggers", socialHandler.GetAllVloggers)
+		protectedSocialGroup.POST("/getCounts", socialHandler.GetCounts)
 	}
+
+	accountGroup.POST("/getProfile", func(c *gin.Context) {
+		var req account.GetProfileRequest
+		if err := c.ShouldBindJSON(&req); err != nil {
+			c.JSON(400, gin.H{"error": err.Error()})
+			return
+		}
+		if req.AccountID == 0 {
+			c.JSON(400, gin.H{"error": "account_id is required"})
+			return
+		}
+		acc, err := accountService.FindByID(c.Request.Context(), req.AccountID)
+		if err != nil {
+			c.JSON(500, gin.H{"error": err.Error()})
+			return
+		}
+		videoCount, _ := videoRepository.CountByAuthor(c.Request.Context(), req.AccountID)
+		totalLikes, _ := videoRepository.TotalLikesByAuthor(c.Request.Context(), req.AccountID)
+		followerCount, _ := socialRepository.CountFollowers(c.Request.Context(), req.AccountID)
+		vloggerCount, _ := socialRepository.CountVloggers(c.Request.Context(), req.AccountID)
+
+		c.JSON(200, account.GetProfileResponse{
+			Account: account.FindByIDResponse{ID: acc.ID, Username: acc.Username, AvatarURL: acc.AvatarURL, Bio: acc.Bio},
+			VideoCount: videoCount, TotalLikes: totalLikes,
+			FollowerCount: followerCount, VloggerCount: vloggerCount,
+		})
+	})
 	// feed
 	feedRepository := feed.NewFeedRepository(db)
 	feedService := feed.NewFeedService(feedRepository, likeRepository, cache)

backend/internal/social/entity.go

@@ -22,12 +22,19 @@ type GetAllFollowersRequest struct {
 
 type GetAllFollowersResponse struct {
 	Followers     []*account.Account `json:"followers"`
+	FollowerCount int64              `json:"follower_count"`
+}
+
+type GetAllVloggersResponse struct {
+	Vloggers     []*account.Account `json:"vloggers"`
+	VloggerCount int64              `json:"vlogger_count"`
+}
+
+type SocialCounts struct {
+	FollowerCount int64 `json:"follower_count"`
+	VloggerCount  int64 `json:"vlogger_count"`
 }
 
 type GetAllVloggersRequest struct {
 	FollowerID uint `json:"follower_id"`
 }
-
-type GetAllVloggersResponse struct {
-	Vloggers []*account.Account `json:"vloggers"`
-}

backend/internal/social/handler.go

@@ -94,7 +94,8 @@ func (h *SocialHandler) GetAllFollowers(c *gin.Context) {
 	if followers == nil {
 		followers = []*account.Account{}
 	}
-	c.JSON(http.StatusOK, GetAllFollowersResponse{Followers: followers})
+	followerCount, _ := h.service.CountFollowers(c.Request.Context(), vloggerID)
+	c.JSON(http.StatusOK, GetAllFollowersResponse{Followers: followers, FollowerCount: followerCount})
 }
 
 func (h *SocialHandler) GetAllVloggers(c *gin.Context) {
@@ -122,5 +123,17 @@ func (h *SocialHandler) GetAllVloggers(c *gin.Context) {
 	if vloggers == nil {
 		vloggers = []*account.Account{}
 	}
-	c.JSON(http.StatusOK, GetAllVloggersResponse{Vloggers: vloggers})
+	vloggerCount, _ := h.service.CountVloggers(c.Request.Context(), followerID)
+	c.JSON(http.StatusOK, GetAllVloggersResponse{Vloggers: vloggers, VloggerCount: vloggerCount})
+}
+
+func (h *SocialHandler) GetCounts(c *gin.Context) {
+	accountID, err := jwt.GetAccountID(c)
+	if err != nil {
+		c.JSON(http.StatusUnauthorized, gin.H{"error": err.Error()})
+		return
+	}
+	followerCount, _ := h.service.CountFollowers(c.Request.Context(), accountID)
+	vloggerCount, _ := h.service.CountVloggers(c.Request.Context(), accountID)
+	c.JSON(http.StatusOK, SocialCounts{FollowerCount: followerCount, VloggerCount: vloggerCount})
 }

backend/internal/social/repo.go

@@ -91,3 +91,19 @@ func (r *SocialRepository) IsFollowed(ctx context.Context, social *Social) (bool
 	}
 	return count > 0, nil
 }
+
+func (r *SocialRepository) CountFollowers(ctx context.Context, vloggerID uint) (int64, error) {
+	var count int64
+	if err := r.db.WithContext(ctx).Model(&Social{}).Where("vlogger_id = ?", vloggerID).Count(&count).Error; err != nil {
+		return 0, err
+	}
+	return count, nil
+}
+
+func (r *SocialRepository) CountVloggers(ctx context.Context, followerID uint) (int64, error) {
+	var count int64
+	if err := r.db.WithContext(ctx).Model(&Social{}).Where("follower_id = ?", followerID).Count(&count).Error; err != nil {
+		return 0, err
+	}
+	return count, nil
+}

backend/internal/social/service.go

@@ -80,6 +80,14 @@ func (s *SocialService) GetAllVloggers(ctx context.Context, FollowerID uint) ([]
 	return s.repo.GetAllVloggers(ctx, FollowerID)
 }
 
+func (s *SocialService) CountFollowers(ctx context.Context, vloggerID uint) (int64, error) {
+	return s.repo.CountFollowers(ctx, vloggerID)
+}
+
+func (s *SocialService) CountVloggers(ctx context.Context, followerID uint) (int64, error) {
+	return s.repo.CountVloggers(ctx, followerID)
+}
+
 func (s *SocialService) IsFollowed(ctx context.Context, social *Social) (bool, error) {
 	_, err := s.accountrepo.FindByID(ctx, social.FollowerID)
 	if err != nil {

backend/internal/video/video_repo.go

@@ -102,3 +102,19 @@ func (vr *VideoRepository) ChangePopularity(ctx context.Context, id uint, change
 	}
 	return nil
 }
+
+func (vr *VideoRepository) CountByAuthor(ctx context.Context, authorID uint) (int64, error) {
+	var count int64
+	if err := vr.db.WithContext(ctx).Model(&Video{}).Where("author_id = ?", authorID).Count(&count).Error; err != nil {
+		return 0, err
+	}
+	return count, nil
+}
+
+func (vr *VideoRepository) TotalLikesByAuthor(ctx context.Context, authorID uint) (int64, error) {
+	var total int64
+	if err := vr.db.WithContext(ctx).Model(&Video{}).Where("author_id = ?", authorID).Select("COALESCE(SUM(likes_count), 0)").Scan(&total).Error; err != nil {
+		return 0, err
+	}
+	return total, nil
+}