Replace websocket flow with SSE support in backend.

Update handlers, services, router, and data conversion logic to support server-sent events and related message pipeline changes.

Made-with: Cursor

internal/service/comment_service.go

@@ -7,6 +7,7 @@ import (
 	"log"
 	"strings"
 
+	"carrot_bbs/internal/cache"
 	"carrot_bbs/internal/model"
 	"carrot_bbs/internal/pkg/gorse"
 	"carrot_bbs/internal/repository"
@@ -17,6 +18,7 @@ type CommentService struct {
 	commentRepo          *repository.CommentRepository
 	postRepo             *repository.PostRepository
 	systemMessageService SystemMessageService
+	cache                cache.Cache
 	gorseClient          gorse.Client
 	postAIService        *PostAIService
 }
@@ -27,6 +29,7 @@ func NewCommentService(commentRepo *repository.CommentRepository, postRepo *repo
 		commentRepo:          commentRepo,
 		postRepo:             postRepo,
 		systemMessageService: systemMessageService,
+		cache:                cache.GetCache(),
 		gorseClient:          gorseClient,
 		postAIService:        postAIService,
 	}
@@ -96,6 +99,10 @@ func (s *CommentService) reviewCommentAsync(
 			log.Printf("[WARN] Failed to publish comment without AI moderation: %v", err)
 			return
 		}
+		if err := s.applyCommentPublishedStats(commentID); err != nil {
+			log.Printf("[WARN] Failed to apply published stats for comment %s: %v", commentID, err)
+		}
+		s.invalidatePostCaches(postID)
 		s.afterCommentPublished(userID, postID, commentID, parentID, parentUserID, postOwnerID)
 		return
 	}
@@ -116,6 +123,10 @@ func (s *CommentService) reviewCommentAsync(
 			log.Printf("[WARN] Failed to publish comment %s after moderation error: %v", commentID, updateErr)
 			return
 		}
+		if statsErr := s.applyCommentPublishedStats(commentID); statsErr != nil {
+			log.Printf("[WARN] Failed to apply published stats for comment %s: %v", commentID, statsErr)
+		}
+		s.invalidatePostCaches(postID)
 		log.Printf("[WARN] Comment moderation failed, fallback publish comment=%s err=%v", commentID, err)
 		s.afterCommentPublished(userID, postID, commentID, parentID, parentUserID, postOwnerID)
 		return
@@ -125,9 +136,26 @@ func (s *CommentService) reviewCommentAsync(
 		log.Printf("[WARN] Failed to publish comment %s: %v", commentID, updateErr)
 		return
 	}
+	if statsErr := s.applyCommentPublishedStats(commentID); statsErr != nil {
+		log.Printf("[WARN] Failed to apply published stats for comment %s: %v", commentID, statsErr)
+	}
+	s.invalidatePostCaches(postID)
 	s.afterCommentPublished(userID, postID, commentID, parentID, parentUserID, postOwnerID)
 }
 
+func (s *CommentService) applyCommentPublishedStats(commentID string) error {
+	comment, err := s.commentRepo.GetByID(commentID)
+	if err != nil {
+		return err
+	}
+	return s.commentRepo.ApplyPublishedStats(comment)
+}
+
+func (s *CommentService) invalidatePostCaches(postID string) {
+	cache.InvalidatePostDetail(s.cache, postID)
+	cache.InvalidatePostList(s.cache)
+}
+
 func (s *CommentService) afterCommentPublished(userID, postID, commentID string, parentID *string, parentUserID, postOwnerID string) {
 	// 发送系统消息通知
 	if s.systemMessageService != nil {
@@ -212,7 +240,15 @@ func (s *CommentService) Update(ctx context.Context, comment *model.Comment) err
 
 // Delete 删除评论
 func (s *CommentService) Delete(ctx context.Context, id string) error {
-	return s.commentRepo.Delete(id)
+	comment, err := s.commentRepo.GetByID(id)
+	if err != nil {
+		return err
+	}
+	if err := s.commentRepo.Delete(id); err != nil {
+		return err
+	}
+	s.invalidatePostCaches(comment.PostID)
+	return nil
 }
 
 // Like 点赞评论