feat(#4): 删除抽奖活动接口 DELETE /admin/lottery/activities/:id

- 软删活动 + 硬删其奖品（同事务）+ 审计日志 - 运行中的活动禁止删除（需先暂停） Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-17 00:16:34 -07:00
parent e8e3a3a72b
commit 13bafd5847
4 changed files with 71 additions and 0 deletions
@@ -318,6 +318,55 @@ func (l *PauseLotteryActivityLogic) PauseLotteryActivity(req *types.AdminActivit
 	return t.run(req.Id)
 }

+// ---- DeleteLotteryActivity -------------------------------------------------
+
+type DeleteLotteryActivityLogic struct {
+	logger.Logger
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+}
+
+func NewDeleteLotteryActivityLogic(ctx context.Context, svcCtx *svc.ServiceContext) *DeleteLotteryActivityLogic {
+	return &DeleteLotteryActivityLogic{Logger: logger.WithContext(ctx), ctx: ctx, svcCtx: svcCtx}
+}
+
+// DeleteLotteryActivity 软删活动 + 硬删其奖品（同事务）。运行中的活动禁止删除，
+// 需先暂停，避免误删正在进行的抽奖。历史抽奖记录/快照保留（独立于奖品行）。
+func (l *DeleteLotteryActivityLogic) DeleteLotteryActivity(req *types.AdminActivityIdRequest) error {
+	actor := currentAdminId(l.ctx)
+	if actor == 0 {
+		return xerr.NewErrCode(xerr.ErrorTokenInvalid)
+	}
+	return l.svcCtx.DB.WithContext(l.ctx).Transaction(func(tx *gorm.DB) error {
+		var a modelLottery.Activity
+		if err := tx.Where("id = ?", req.Id).First(&a).Error; err != nil {
+			if errors.Is(err, gorm.ErrRecordNotFound) {
+				return xerr.NewErrCode(xerr.LotteryActivityEnded)
+			}
+			return errors.Wrap(xerr.NewErrCode(xerr.DatabaseQueryError), err.Error())
+		}
+		if a.Status == modelLottery.ActivityStatusRunning {
+			return xerr.NewErrCodeMsg(xerr.InvalidParams, "运行中的活动请先暂停再删除")
+		}
+		// 软删活动（Activity 有 gorm.DeletedAt）。
+		if err := tx.Delete(&modelLottery.Activity{}, req.Id).Error; err != nil {
+			return errors.Wrap(xerr.NewErrCode(xerr.DatabaseDeletedError), err.Error())
+		}
+		// 硬删奖品（Prize 无软删字段），避免残留孤儿奖品。
+		if err := tx.Where("activity_id = ?", req.Id).Delete(&modelLottery.Prize{}).Error; err != nil {
+			return errors.Wrap(xerr.NewErrCode(xerr.DatabaseDeletedError), err.Error())
+		}
+		ip, ua := requestMeta(l.ctx)
+		return audit.WriteAdminAction(l.ctx, tx, audit.Entry{
+			ActorUserId: actor,
+			Action:      audit.ActionLotteryActivityDelete,
+			TargetIds:   int64ToStr(req.Id),
+			IP:          ip,
+			UserAgent:   ua,
+		})
+	})
+}
+
 // ---- UpdateLotteryRules (with caps) ----------------------------------------

 type UpdateLotteryRulesLogic struct {