采购单优化

app/Models/StoreOrderModel.php

@@ -44,6 +44,7 @@ class StoreOrderModel extends Model
         'tray_num',
         'status',
         'remark',
+        'purchase_id',
     ];
 
     protected $casts = [

app/Services/PurchaseGenerateService.php

@@ -7,19 +7,14 @@ use App\Models\PurchaseOrderModel;
 use App\Models\StoreOrderItemModel;
 use App\Models\StoreOrderModel;
 use Illuminate\Support\Facades\DB;
+use Throwable;
 
 /**
- * C1 订单汇总生成采购单
- *
- * 流程（事务内）：
- * 1. 行锁「已接单」订单（可传 orderIds 只合并指定订单；状态条件天然排除已归集订单，幂等）
- * 2. 创建采购单头（PO 单号；total_quantity / estimate_amount 取订货明细汇总）
- * 3. 源订单批量回写 status = 采购中、purchase_id = 采购单ID，
- *    订货明细同步回写 purchase_id（采购明细直接溯源订货明细，无独立采购明细表）
+ * 订单汇总生成采购单
  */
-class PurchaseGenerateService
+readonly class PurchaseGenerateService
 {
-    public function __construct(private readonly BillNumberService $billNumberService)
+    public function __construct(private BillNumberService $billNumberService)
     {
     }
 
@@ -27,6 +22,8 @@ class PurchaseGenerateService
      * @param string $date 采购日期（Y-m-d）
      * @param int $operatorId 制单人（后台系统用户ID）
      * @param int[] $orderIds 指定合并的门店订单ID（空 = 全部已接单订单）
+     * @return PurchaseOrderModel
+     * @throws Throwable
      */
     public function generate(string $date, int $operatorId, array $orderIds = []): PurchaseOrderModel
     {
@@ -62,7 +59,7 @@ class PurchaseGenerateService
                 '0'
             );
             $estimateAmount = $items->reduce(
-                static fn (string $carry, $item): string => bcadd($carry, (string) $item->amount, 2),
+                static fn (string $carry, $item): string => bcadd($carry, bcmul($item->quantity, (string) $item->cost_price, 2), 2),
                 '0'
             );
 

web/pages/purchase/order.tsx

@@ -260,7 +260,7 @@ const PurchaseOrderPage: React.FC = () => {
       render: (_, record) => record.purchase_date,
     },
     {
-      title: '预估金额',
+      title: '预估成本',
       dataIndex: 'estimate_amount',
       hideInForm: true,
       hideInSearch: true,
@@ -268,7 +268,7 @@ const PurchaseOrderPage: React.FC = () => {
       render: (_, record) => `¥${record.estimate_amount}`,
     },
     {
-      title: '实际金额',
+      title: '实际成本',
       dataIndex: 'actual_amount',
       hideInForm: true,
       hideInSearch: true,