Initial backend repository commit.
Set up project files and add .gitignore to exclude local build/runtime artifacts. Made-with: Cursor
This commit is contained in:
273
internal/service/comment_service.go
Normal file
273
internal/service/comment_service.go
Normal file
@@ -0,0 +1,273 @@
|
||||
package service
|
||||
|
||||
import (
|
||||
"context"
|
||||
"errors"
|
||||
"fmt"
|
||||
"log"
|
||||
"strings"
|
||||
|
||||
"carrot_bbs/internal/model"
|
||||
"carrot_bbs/internal/pkg/gorse"
|
||||
"carrot_bbs/internal/repository"
|
||||
)
|
||||
|
||||
// CommentService 评论服务
|
||||
type CommentService struct {
|
||||
commentRepo *repository.CommentRepository
|
||||
postRepo *repository.PostRepository
|
||||
systemMessageService SystemMessageService
|
||||
gorseClient gorse.Client
|
||||
postAIService *PostAIService
|
||||
}
|
||||
|
||||
// NewCommentService 创建评论服务
|
||||
func NewCommentService(commentRepo *repository.CommentRepository, postRepo *repository.PostRepository, systemMessageService SystemMessageService, gorseClient gorse.Client, postAIService *PostAIService) *CommentService {
|
||||
return &CommentService{
|
||||
commentRepo: commentRepo,
|
||||
postRepo: postRepo,
|
||||
systemMessageService: systemMessageService,
|
||||
gorseClient: gorseClient,
|
||||
postAIService: postAIService,
|
||||
}
|
||||
}
|
||||
|
||||
// Create 创建评论
|
||||
func (s *CommentService) Create(ctx context.Context, postID, userID, content string, parentID *string, images string, imageURLs []string) (*model.Comment, error) {
|
||||
if s.postAIService != nil {
|
||||
// 采用异步审核，前端先立即返回
|
||||
}
|
||||
|
||||
// 获取帖子信息用于发送通知
|
||||
post, err := s.postRepo.GetByID(postID)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
comment := &model.Comment{
|
||||
PostID: postID,
|
||||
UserID: userID,
|
||||
Content: content,
|
||||
ParentID: parentID,
|
||||
Images: images,
|
||||
Status: model.CommentStatusPending,
|
||||
}
|
||||
|
||||
// 如果有父评论，设置根评论ID
|
||||
var parentUserID string
|
||||
if parentID != nil {
|
||||
parent, err := s.commentRepo.GetByID(*parentID)
|
||||
if err == nil && parent != nil {
|
||||
if parent.RootID != nil {
|
||||
comment.RootID = parent.RootID
|
||||
} else {
|
||||
comment.RootID = parentID
|
||||
}
|
||||
parentUserID = parent.UserID
|
||||
}
|
||||
}
|
||||
|
||||
err = s.commentRepo.Create(comment)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
// 重新查询以获取关联的 User
|
||||
comment, err = s.commentRepo.GetByID(comment.ID)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
go s.reviewCommentAsync(comment.ID, userID, postID, content, imageURLs, parentID, parentUserID, post.UserID)
|
||||
|
||||
return comment, nil
|
||||
}
|
||||
|
||||
func (s *CommentService) reviewCommentAsync(
|
||||
commentID, userID, postID, content string,
|
||||
imageURLs []string,
|
||||
parentID *string,
|
||||
parentUserID string,
|
||||
postOwnerID string,
|
||||
) {
|
||||
// 未启用AI时，直接通过审核并发送后续通知
|
||||
if s.postAIService == nil || !s.postAIService.IsEnabled() {
|
||||
if err := s.commentRepo.UpdateModerationStatus(commentID, model.CommentStatusPublished); err != nil {
|
||||
log.Printf("[WARN] Failed to publish comment without AI moderation: %v", err)
|
||||
return
|
||||
}
|
||||
s.afterCommentPublished(userID, postID, commentID, parentID, parentUserID, postOwnerID)
|
||||
return
|
||||
}
|
||||
|
||||
err := s.postAIService.ModerateComment(context.Background(), content, imageURLs)
|
||||
if err != nil {
|
||||
var rejectedErr *CommentModerationRejectedError
|
||||
if errors.As(err, &rejectedErr) {
|
||||
if delErr := s.commentRepo.Delete(commentID); delErr != nil {
|
||||
log.Printf("[WARN] Failed to delete rejected comment %s: %v", commentID, delErr)
|
||||
}
|
||||
s.notifyCommentModerationRejected(userID, rejectedErr.Reason)
|
||||
return
|
||||
}
|
||||
|
||||
// 审核服务异常时降级放行，避免评论长期pending
|
||||
if updateErr := s.commentRepo.UpdateModerationStatus(commentID, model.CommentStatusPublished); updateErr != nil {
|
||||
log.Printf("[WARN] Failed to publish comment %s after moderation error: %v", commentID, updateErr)
|
||||
return
|
||||
}
|
||||
log.Printf("[WARN] Comment moderation failed, fallback publish comment=%s err=%v", commentID, err)
|
||||
s.afterCommentPublished(userID, postID, commentID, parentID, parentUserID, postOwnerID)
|
||||
return
|
||||
}
|
||||
|
||||
if updateErr := s.commentRepo.UpdateModerationStatus(commentID, model.CommentStatusPublished); updateErr != nil {
|
||||
log.Printf("[WARN] Failed to publish comment %s: %v", commentID, updateErr)
|
||||
return
|
||||
}
|
||||
s.afterCommentPublished(userID, postID, commentID, parentID, parentUserID, postOwnerID)
|
||||
}
|
||||
|
||||
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 {
|
||||
go func() {
|
||||
if parentID != nil && parentUserID != "" {
|
||||
// 回复评论，通知被回复的人
|
||||
if parentUserID != userID {
|
||||
notifyErr := s.systemMessageService.SendReplyNotification(context.Background(), parentUserID, userID, postID, *parentID, commentID)
|
||||
if notifyErr != nil {
|
||||
fmt.Printf("[DEBUG] Error sending reply notification: %v\n", notifyErr)
|
||||
}
|
||||
}
|
||||
} else {
|
||||
// 评论帖子，通知帖子作者
|
||||
if postOwnerID != userID {
|
||||
notifyErr := s.systemMessageService.SendCommentNotification(context.Background(), postOwnerID, userID, postID, commentID)
|
||||
if notifyErr != nil {
|
||||
fmt.Printf("[DEBUG] Error sending comment notification: %v\n", notifyErr)
|
||||
}
|
||||
}
|
||||
}
|
||||
}()
|
||||
}
|
||||
|
||||
// 推送评论行为到Gorse（异步）
|
||||
go func() {
|
||||
if s.gorseClient.IsEnabled() {
|
||||
if err := s.gorseClient.InsertFeedback(context.Background(), gorse.FeedbackTypeComment, userID, postID); err != nil {
|
||||
log.Printf("[WARN] Failed to insert comment feedback to Gorse: %v", err)
|
||||
}
|
||||
}
|
||||
}()
|
||||
}
|
||||
|
||||
func (s *CommentService) notifyCommentModerationRejected(userID, reason string) {
|
||||
if s.systemMessageService == nil || strings.TrimSpace(userID) == "" {
|
||||
return
|
||||
}
|
||||
|
||||
content := "您发布的评论未通过AI审核，请修改后重试。"
|
||||
if strings.TrimSpace(reason) != "" {
|
||||
content = fmt.Sprintf("您发布的评论未通过AI审核，原因：%s。请修改后重试。", reason)
|
||||
}
|
||||
|
||||
go func() {
|
||||
if err := s.systemMessageService.SendSystemAnnouncement(
|
||||
context.Background(),
|
||||
[]string{userID},
|
||||
"评论审核未通过",
|
||||
content,
|
||||
); err != nil {
|
||||
log.Printf("[WARN] Failed to send comment moderation reject notification: %v", err)
|
||||
}
|
||||
}()
|
||||
}
|
||||
|
||||
// GetByID 根据ID获取评论
|
||||
func (s *CommentService) GetByID(ctx context.Context, id string) (*model.Comment, error) {
|
||||
return s.commentRepo.GetByID(id)
|
||||
}
|
||||
|
||||
// GetByPostID 获取帖子评论
|
||||
func (s *CommentService) GetByPostID(ctx context.Context, postID string, page, pageSize int) ([]*model.Comment, int64, error) {
|
||||
// 使用带回复的查询，默认加载前3条回复
|
||||
return s.commentRepo.GetByPostIDWithReplies(postID, page, pageSize, 3)
|
||||
}
|
||||
|
||||
// GetRepliesByRootID 根据根评论ID分页获取回复
|
||||
func (s *CommentService) GetRepliesByRootID(ctx context.Context, rootID string, page, pageSize int) ([]*model.Comment, int64, error) {
|
||||
return s.commentRepo.GetRepliesByRootID(rootID, page, pageSize)
|
||||
}
|
||||
|
||||
// GetReplies 获取回复
|
||||
func (s *CommentService) GetReplies(ctx context.Context, parentID string) ([]*model.Comment, error) {
|
||||
return s.commentRepo.GetReplies(parentID)
|
||||
}
|
||||
|
||||
// Update 更新评论
|
||||
func (s *CommentService) Update(ctx context.Context, comment *model.Comment) error {
|
||||
return s.commentRepo.Update(comment)
|
||||
}
|
||||
|
||||
// Delete 删除评论
|
||||
func (s *CommentService) Delete(ctx context.Context, id string) error {
|
||||
return s.commentRepo.Delete(id)
|
||||
}
|
||||
|
||||
// Like 点赞评论
|
||||
func (s *CommentService) Like(ctx context.Context, commentID, userID string) error {
|
||||
// 获取评论信息用于发送通知
|
||||
comment, err := s.commentRepo.GetByID(commentID)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
err = s.commentRepo.Like(commentID, userID)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// 发送评论/回复点赞通知（只有不是给自己点赞时才发送）
|
||||
if s.systemMessageService != nil && comment.UserID != userID {
|
||||
go func() {
|
||||
var notifyErr error
|
||||
if comment.ParentID != nil {
|
||||
notifyErr = s.systemMessageService.SendLikeReplyNotification(
|
||||
context.Background(),
|
||||
comment.UserID,
|
||||
userID,
|
||||
comment.PostID,
|
||||
commentID,
|
||||
comment.Content,
|
||||
)
|
||||
} else {
|
||||
notifyErr = s.systemMessageService.SendLikeCommentNotification(
|
||||
context.Background(),
|
||||
comment.UserID,
|
||||
userID,
|
||||
comment.PostID,
|
||||
commentID,
|
||||
comment.Content,
|
||||
)
|
||||
}
|
||||
if notifyErr != nil {
|
||||
fmt.Printf("[DEBUG] Error sending like notification: %v\n", notifyErr)
|
||||
} else {
|
||||
fmt.Printf("[DEBUG] Like notification sent successfully\n")
|
||||
}
|
||||
}()
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// Unlike 取消点赞评论
|
||||
func (s *CommentService) Unlike(ctx context.Context, commentID, userID string) error {
|
||||
return s.commentRepo.Unlike(commentID, userID)
|
||||
}
|
||||
|
||||
// IsLiked 检查是否已点赞
|
||||
func (s *CommentService) IsLiked(ctx context.Context, commentID, userID string) bool {
|
||||
return s.commentRepo.IsLiked(commentID, userID)
|
||||
}
|
||||
Reference in New Issue
Block a user