feat: fix stock check and add admin order status update

backend/internal/api/handlers/order.go

@@ -278,11 +278,13 @@ func (h *OrderHandler) Create(c *gin.Context) {
 		}
 
 		var inventory models.Inventory
-		if err := utils.DB.Where("product_id = ?", cart.ProductID).First(&inventory).Error; err == nil {
-			if inventory.Quantity < cart.Quantity {
-				c.JSON(http.StatusBadRequest, gin.H{"error": "Insufficient stock for " + cart.Product.Name})
+		if err := utils.DB.Where("product_id = ?", cart.ProductID).First(&inventory).Error; err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"error": "No inventory record for " + cart.Product.Name})
 			return
 		}
+		if inventory.Quantity < cart.Quantity {
+			c.JSON(http.StatusBadRequest, gin.H{"error": "Insufficient stock for " + cart.Product.Name + ". Available: " + strconv.Itoa(inventory.Quantity)})
+			return
 		}
 
 		subtotal += cart.Product.Price * float64(cart.Quantity)
@@ -723,3 +725,52 @@ func (h *OrderHandler) ConfirmReceipt(c *gin.Context) {
 	utils.DB.Model(&order).Update("status", models.OrderStatusCompleted)
 	c.JSON(http.StatusOK, gin.H{"message": "Order confirmed successfully"})
 }
+
+func (h *OrderHandler) AdminUpdateStatus(c *gin.Context) {
+	id, _ := strconv.Atoi(c.Param("id"))
+
+	var order models.Order
+	if err := utils.DB.First(&order, id).Error; err != nil {
+		c.JSON(http.StatusNotFound, gin.H{"error": "Order not found"})
+		return
+	}
+
+	var req struct {
+		Status         string `json:"status" binding:"required"`
+		TrackingNumber string `json:"tracking_number"`
+	}
+	if err := c.ShouldBindJSON(&req); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+
+	validStatuses := []string{
+		models.OrderStatusPendingPayment,
+		models.OrderStatusPendingConfirm,
+		models.OrderStatusPendingShip,
+		models.OrderStatusShipped,
+		models.OrderStatusCompleted,
+		models.OrderStatusRefunding,
+		models.OrderStatusRefunded,
+		models.OrderStatusCancelled,
+	}
+	valid := false
+	for _, s := range validStatuses {
+		if s == req.Status {
+			valid = true
+			break
+		}
+	}
+	if !valid {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "Invalid status"})
+		return
+	}
+
+	updates := map[string]interface{}{"status": req.Status}
+	if req.TrackingNumber != "" {
+		updates["tracking_number"] = req.TrackingNumber
+	}
+
+	utils.DB.Model(&order).Updates(updates)
+	c.JSON(http.StatusOK, gin.H{"message": "Order status updated successfully"})
+}

backend/internal/api/routes/routes.go

@@ -191,6 +191,7 @@ func SetupRoutes(r *gin.Engine) {
 					adminOrders.GET("/:id", orderHandler.AdminGetByID)
 					adminOrders.GET("/export", orderHandler.Export)
 					adminOrders.PUT("/:id/refund", orderHandler.ProcessRefund)
+					adminOrders.PUT("/:id/status", orderHandler.AdminUpdateStatus)
 				}
 
 				adminLotteries := admin.Group("/lotteries")

frontend/src/api/index.ts

@@ -152,6 +152,7 @@ export const adminApi = {
   getOrderById: (id: number) => api.get(`/admin/orders/${id}`),
   exportOrders: () => api.get('/admin/orders/export'),
   processRefund: (id: number, data: any) => api.put(`/admin/orders/${id}/refund`, data),
+  updateOrderStatus: (id: number, data: any) => api.put(`/admin/orders/${id}/status`, data),
 
   getSuppliers: () => api.get('/admin/suppliers'),
   createSupplier: (data: any) => api.post('/admin/suppliers', data),

frontend/src/views/admin/Orders.vue

@@ -48,13 +48,33 @@
             </div>
             <div class="detail-item">
               <span class="label">状态：</span>
-              <span class="value"><el-tag>{{ statusText(currentOrder.status) }}</el-tag></span>
+              <span class="value">
+                <el-select v-model="editStatus" size="small" style="width: 120px">
+                  <el-option label="待支付" value="pending_payment" />
+                  <el-option label="待确认" value="pending_confirm" />
+                  <el-option label="待发货" value="pending_ship" />
+                  <el-option label="已发货" value="shipped" />
+                  <el-option label="已完成" value="completed" />
+                  <el-option label="退款中" value="refunding" />
+                  <el-option label="已退款" value="refunded" />
+                  <el-option label="已取消" value="cancelled" />
+                </el-select>
+              </span>
+            </div>
+            <div class="detail-item">
+              <span class="label">快递单号：</span>
+              <span class="value">
+                <el-input v-model="editTrackingNumber" size="small" style="width: 200px" placeholder="输入快递单号" />
+              </span>
             </div>
             <div class="detail-item">
               <span class="label">创建时间：</span>
               <span class="value">{{ formatDate(currentOrder.created_at) }}</span>
             </div>
           </div>
+          <div style="margin-top: 12px">
+            <el-button type="primary" size="small" @click="saveStatus">保存修改</el-button>
+          </div>
         </div>
 
         <div class="detail-section" v-if="currentOrder.shipping_address">
@@ -170,6 +190,8 @@ const paginatedOrders = computed(() => {
 
 const detailVisible = ref(false)
 const currentOrder = ref<any>(null)
+const editStatus = ref('')
+const editTrackingNumber = ref('')
 
 const statusMap: Record<string, string> = {
   pending_payment: '待支付', pending_confirm: '待确认', pending_ship: '待发货',
@@ -201,12 +223,30 @@ async function viewDetail(row: any) {
   try {
     const res: any = await adminApi.getOrderById(row.id)
     currentOrder.value = res.data
+    editStatus.value = res.data.status
+    editTrackingNumber.value = res.data.tracking_number || ''
     detailVisible.value = true
   } catch {
     ElMessage.error('获取订单详情失败')
   }
 }
 
+async function saveStatus() {
+  if (!currentOrder.value) return
+  try {
+    await adminApi.updateOrderStatus(currentOrder.value.id, {
+      status: editStatus.value,
+      tracking_number: editTrackingNumber.value
+    })
+    ElMessage.success('订单状态已更新')
+    const res: any = await adminApi.getOrderById(currentOrder.value.id)
+    currentOrder.value = res.data
+    await fetchOrders()
+  } catch {
+    ElMessage.error('更新失败')
+  }
+}
+
 async function processRefund(id: number, status: string) {
   await adminApi.processRefund(id, { status })
   ElMessage.success('已处理')