From 4f6f15b818704079ff2e4e4719b798f48d68a335 Mon Sep 17 00:00:00 2001
From: liujie <1793218484@qq.com>
Date: 星期五, 11 九月 2026 13:52:19 +0800
Subject: [PATCH] update

---
 backend/src/main/java/com/tourguide/modules/order/service/GuideSessionTransitionService.java |   36 ++++++++++++++++++++++++++++++++++++
 1 files changed, 36 insertions(+), 0 deletions(-)

diff --git a/backend/src/main/java/com/tourguide/modules/order/service/GuideSessionTransitionService.java b/backend/src/main/java/com/tourguide/modules/order/service/GuideSessionTransitionService.java
index 4420691..a578024 100644
--- a/backend/src/main/java/com/tourguide/modules/order/service/GuideSessionTransitionService.java
+++ b/backend/src/main/java/com/tourguide/modules/order/service/GuideSessionTransitionService.java
@@ -1,6 +1,7 @@
 package com.tourguide.modules.order.service;
 
 import com.tourguide.modules.order.mapper.TourOrderMapper;
+import com.tourguide.modules.order.entity.TourOrder;
 import com.tourguide.modules.user.entity.GuideReceivingSession;
 import com.tourguide.modules.user.mapper.GuideRealtimeStatusMapper;
 import com.tourguide.modules.user.mapper.GuideReceivingSessionMapper;
@@ -28,4 +29,39 @@
         orderMapper.startSessionOrders(session.getId(), LocalDateTime.now());
         realtimeStatusMapper.disableReceiving(session.getGuideId());
     }
+
+    @Transactional
+    public void restoreAfterOrderCancellation(TourOrder order) {
+        if (order == null || order.getGuideId() == null || order.getReceivingSessionId() == null) return;
+
+        GuideReceivingSession session = sessionMapper.selectForUpdate(
+                order.getReceivingSessionId(), order.getGuideId());
+        if (session == null) return;
+
+        long remainingOrders = orderMapper.countPendingMeetingBySession(session.getId(), order.getGuideId());
+        if ("PRIVATE".equals(session.getReceivingMode())
+                || ("ALL".equals(session.getReceivingMode()) && isPrivateOrder(order))) {
+            if (remainingOrders == 0
+                    && sessionMapper.reopenPrivateAfterOrderCancellation(session.getId(), order.getGuideId()) == 1) {
+                realtimeStatusMapper.enableReceiving(order.getGuideId());
+            }
+            return;
+        }
+
+        if (!("GROUP".equals(session.getReceivingMode())
+                || ("ALL".equals(session.getReceivingMode()) && !isPrivateOrder(order)))
+                || !"RECEIVING".equals(session.getStatus())) return;
+        if (remainingOrders == 0) {
+            sessionMapper.resetGroupAfterOrderCancellation(session.getId(), order.getGuideId());
+            return;
+        }
+        int peopleCount = order.getPeopleCount() == null ? 0 : Math.max(0, order.getPeopleCount());
+        if (peopleCount > 0) {
+            sessionMapper.releaseGroupCapacity(session.getId(), order.getGuideId(), peopleCount);
+        }
+    }
+
+    private boolean isPrivateOrder(TourOrder order) {
+        return order.getOrderType() != null && order.getOrderType().startsWith("PRIVATE_");
+    }
 }

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