f

app/main/api/internal/logic/pay/wechatpaycallbacklogic.go

@@ -169,7 +169,13 @@ func (l *WechatPayCallbackLogic) handleAgentVipOrderPayment(w http.ResponseWrite
 			} else {
 				logx.Infof("代理会员新购、升级或重新激活成功，会员ID：%d，等级：%s", agentModel.Id, agentModel.LevelName)
 			}
-			agentModel.MembershipExpiryTime = lzUtils.RenewMembership(agentModel.MembershipExpiryTime)
+			// VIP 升级到 SVIP 按支付时间重新计算有效期，不叠加旧 VIP 剩余时长。
+			isVipUpgradeToSvip := oldLevel == model.AgentLeveNameVIP && agentOrder.LevelName == model.AgentLeveNameSVIP
+			if isVipUpgradeToSvip {
+				agentModel.MembershipExpiryTime = lzUtils.RenewMembership(lzUtils.TimeToNullTime(time.Now()))
+			} else {
+				agentModel.MembershipExpiryTime = lzUtils.RenewMembership(agentModel.MembershipExpiryTime)
+			}
 
 			if updateErr := l.svcCtx.AgentModel.UpdateWithVersion(l.ctx, nil, agentModel); updateErr != nil {
 				return fmt.Errorf("修改代理信息失败: %+v", updateErr)