20251209

archive/bbs-go/server/internal/controllers/render/comment_render.go

@@ -0,0 +1,106 @@
+package render
+
+import (
+	"bbs-go/internal/models"
+	"bbs-go/internal/models/constants"
+	"bbs-go/internal/pkg/markdown"
+	"bbs-go/internal/services"
+	"html"
+	"strconv"
+
+	"github.com/mlogclub/simple/common/arrays"
+	"github.com/mlogclub/simple/web"
+)
+
+func BuildComment(comment *models.Comment) *models.CommentResponse {
+	return doBuildComment(comment, nil, true, true)
+}
+
+func BuildComments(comments []models.Comment, currentUser *models.User, isBuildReplies, isBuildQuote bool) []models.CommentResponse {
+	if len(comments) == 0 {
+		return nil
+	}
+
+	likedCommentIds := getLikedCommentIds(comments, currentUser)
+
+	var ret []models.CommentResponse
+	for _, comment := range comments {
+		item := doBuildComment(&comment, currentUser, isBuildReplies, isBuildQuote)
+		item.Liked = arrays.Contains(comment.Id, likedCommentIds)
+		ret = append(ret, *item)
+	}
+	return ret
+}
+
+func getLikedCommentIds(comments []models.Comment, currentUser *models.User) (likedCommentIds []int64) {
+	if currentUser == nil || len(comments) == 0 {
+		return
+	}
+	var commentIds []int64
+	for _, comment := range comments {
+		commentIds = append(commentIds, comment.Id)
+	}
+	likedCommentIds = services.UserLikeService.IsLiked(currentUser.Id, constants.EntityComment, commentIds)
+	return
+}
+
+// doBuildComment 渲染评论
+// isBuildReplies 是否渲染评论的二级回复，一级评论时要设置为true，其他时候都为false
+// isBuildQuote 是否渲染评论的引用，二级回复时要设置为true，其他时候都为false
+func doBuildComment(comment *models.Comment, currentUser *models.User, isBuildReplies, isBuildQuote bool) *models.CommentResponse {
+	if comment == nil {
+		return nil
+	}
+
+	ret := &models.CommentResponse{
+		Id:           comment.Id,
+		User:         BuildUserInfoDefaultIfNull(comment.UserId),
+		EntityType:   comment.EntityType,
+		EntityId:     comment.EntityId,
+		QuoteId:      comment.QuoteId,
+		LikeCount:    comment.LikeCount,
+		CommentCount: comment.CommentCount,
+		ContentType:  comment.ContentType,
+		IpLocation:   comment.IpLocation,
+		Status:       comment.Status,
+		CreateTime:   comment.CreateTime,
+	}
+
+	if comment.Status == constants.StatusOk {
+		if comment.ContentType == constants.ContentTypeMarkdown {
+			content := markdown.ToHTML(comment.Content)
+			ret.Content = handleHtmlContent(content)
+		} else if comment.ContentType == constants.ContentTypeHtml {
+			ret.Content = handleHtmlContent(comment.Content)
+		} else {
+			ret.Content = html.EscapeString(comment.Content)
+		}
+		ret.ImageList = BuildImageList(comment.ImageList)
+	} else {
+		ret.Content = "内容已删除"
+	}
+
+	if isBuildReplies && comment.CommentCount > 0 {
+		var repliesLimit int64 = 3
+		replies, nextCursor, _ := services.CommentService.GetReplies(comment.Id, 0, int(repliesLimit))
+		//var replyResults []model.CommentResponse
+		//for _, reply := range replies {
+		//	replyResults = append(replyResults, *doBuildComment(&reply, false, true))
+		//}
+		replyResults := BuildComments(replies, currentUser, false, true)
+		ret.Replies = &web.CursorResult{
+			Results: replyResults,
+			Cursor:  strconv.FormatInt(nextCursor, 10),
+			HasMore: comment.CommentCount > repliesLimit,
+		}
+	}
+
+	if isBuildQuote && comment.QuoteId > 0 {
+		quote := doBuildComment(services.CommentService.Get(comment.QuoteId), currentUser, false, false)
+		if quote != nil {
+			ret.Quote = quote
+		}
+	}
+
+	return ret
+}