fix: 待审通知实时回填审核态并重构消息页体验

service/message_moderation.go

@@ -0,0 +1,166 @@
+package service
+
+import (
+	"math"
+	"strings"
+	"time"
+
+	"git.iioio.com/freefire/jiang13-forum/model"
+)
+
+// looksLikeModerationComment 判断待审通知是否指向评论（含嵌套回复）
+func looksLikeModerationComment(subject, content string) bool {
+	if strings.Contains(subject, "评论") || strings.Contains(content, "评论") {
+		return true
+	}
+	return strings.Contains(content, "回复") || strings.Contains(content, "楼下")
+}
+
+// isNestedModerationContent 嵌套回复待审（正文为「#N 楼下…」）
+func isNestedModerationContent(content string) bool {
+	return strings.Contains(content, "楼下")
+}
+
+// resolveModerationCommentRef 为历史待审评论通知推断目标评论 ID 与自身楼号
+func resolveModerationCommentRef(postID uint, content string, notifyAt time.Time) (commentID uint, floor int) {
+	if postID == 0 || model.DB == nil {
+		return 0, 0
+	}
+	displayFloor := parseNotifyFloor(content)
+	if displayFloor <= 0 {
+		return 0, 0
+	}
+
+	if isNestedModerationContent(content) {
+		var parent struct {
+			ID uint
+		}
+		err := model.DB.Unscoped().Model(&model.Comment{}).
+			Select("id").
+			Where("post_id = ? AND floor = ?", postID, displayFloor).
+			First(&parent).Error
+		if err != nil || parent.ID == 0 {
+			return 0, 0
+		}
+
+		type childRow struct {
+			ID        uint
+			Floor     int
+			CreatedAt time.Time
+		}
+		var children []childRow
+		_ = model.DB.Unscoped().Model(&model.Comment{}).
+			Select("id", "floor", "created_at").
+			Where("post_id = ? AND reply_to = ?", postID, parent.ID).
+			Find(&children).Error
+		if len(children) == 0 {
+			return 0, 0
+		}
+		if len(children) == 1 {
+			return children[0].ID, children[0].Floor
+		}
+		best := children[0]
+		bestDiff := math.MaxFloat64
+		for _, c := range children {
+			diff := math.Abs(float64(c.CreatedAt.Sub(notifyAt)))
+			if diff < bestDiff {
+				bestDiff = diff
+				best = c
+			}
+		}
+		// 通知与评论创建时间相差超过 7 天则放弃，避免误配旧回复
+		if bestDiff > float64(7*24*time.Hour) {
+			return 0, 0
+		}
+		return best.ID, best.Floor
+	}
+
+	var row struct {
+		ID    uint
+		Floor int
+	}
+	err := model.DB.Unscoped().Model(&model.Comment{}).
+		Select("id", "floor").
+		Where("post_id = ? AND floor = ?", postID, displayFloor).
+		First(&row).Error
+	if err != nil || row.ID == 0 {
+		return 0, 0
+	}
+	return row.ID, row.Floor
+}
+
+// BackfillModerationNotifyRefs 为历史 moderation 通知补写 related_comment_id / related_floor
+func BackfillModerationNotifyRefs() error {
+	if model.DB == nil {
+		return nil
+	}
+	var rows []model.PrivateMessage
+	err := model.DB.Where("kind = ? AND (related_comment_id IS NULL OR related_comment_id = 0)", model.MessageKindModeration).
+		Find(&rows).Error
+	if err != nil {
+		return err
+	}
+	for _, m := range rows {
+		if m.RelatedPostID == nil || *m.RelatedPostID == 0 {
+			continue
+		}
+		if !looksLikeModerationComment(m.Subject, m.Content) {
+			continue
+		}
+		cid, fl := resolveModerationCommentRef(*m.RelatedPostID, m.Content, m.CreatedAt)
+		if cid == 0 {
+			continue
+		}
+		floor := fl
+		updates := map[string]interface{}{
+			"related_comment_id": cid,
+			"related_floor":      floor,
+		}
+		_ = model.DB.Model(&model.PrivateMessage{}).Where("id = ?", m.ID).Updates(updates).Error
+	}
+	return nil
+}
+
+// enrichModerationCommentIDs 为无 related_comment_id 的评论类待审通知解析评论 ID
+func enrichModerationCommentIDs(list []model.PrivateMessage) map[int]uint {
+	out := make(map[int]uint)
+	for i := range list {
+		m := &list[i]
+		if m.Kind != model.MessageKindModeration {
+			continue
+		}
+		if m.RelatedCommentID != nil && *m.RelatedCommentID > 0 {
+			continue
+		}
+		if m.RelatedPostID == nil || *m.RelatedPostID == 0 {
+			continue
+		}
+		if !looksLikeModerationComment(m.Subject, m.Content) {
+			continue
+		}
+		// 嵌套回复优先按子评论匹配，避免 displayFloor 查到父评论状态
+		if isNestedModerationContent(m.Content) {
+			cid, _ := resolveModerationCommentRef(*m.RelatedPostID, m.Content, m.CreatedAt)
+			if cid > 0 {
+				out[i] = cid
+			}
+			continue
+		}
+		// 顶层评论：有 related_floor 时按楼号查 ID
+		if m.RelatedFloor != nil && *m.RelatedFloor > 0 {
+			var row struct{ ID uint }
+			if err := model.DB.Unscoped().Model(&model.Comment{}).
+				Select("id").
+				Where("post_id = ? AND floor = ?", *m.RelatedPostID, *m.RelatedFloor).
+				First(&row).Error; err == nil && row.ID > 0 {
+				out[i] = row.ID
+			}
+			continue
+		}
+		cid, _ := resolveModerationCommentRef(*m.RelatedPostID, m.Content, m.CreatedAt)
+		if cid > 0 {
+			out[i] = cid
+		}
+	}
+	return out
+}