采购单优化

app/Services/ReconciliationBuildService.php

@@ -17,8 +17,8 @@ use Illuminate\Support\Facades\DB;
  * 流程（事务内，可重复 build：先清后建）：
  * 1. 按周期 + 品类（含子孙分类）+ 供应商拉取「已完成」门店订单的订货明细
  * 2. 每条订货明细 → 一条对账明细：
- *    publish_amount = 订货金额（order_item.amount）
- *    actual_amount  = 采购成本（称重>0 ? 称重×单价 : 数量×单价，单价 = 成本/包规）
+ *    publish_amount = 订货金额（order_item.amount = 每包等级价×数量）
+ *    actual_amount  = 采购成本（数量 × 每包成本价；单价/包规不参与金额计算）
  *    diff = publish − actual，冗余 product_name / store_id
  * 3. 汇总写回头的 publish/actual/diff_amount，status → 对账中
  */
@@ -64,15 +64,7 @@ class ReconciliationBuildService
             $now = now();
             foreach ($orderItems as $orderItem) {
                 $publish = (string) $orderItem->amount;
-                $unitCost = PurchaseEditService::unitCost(
-                    (string) ($orderItem->cost_price ?? '0'),
-                    (string) $orderItem->product_spec
-                );
-                $actual = PurchaseEditService::costAmount(
-                    (string) $orderItem->quantity,
-                    (string) $orderItem->weight,
-                    $unitCost
-                );
+                $actual = bcmul((string) $orderItem->quantity, (string) ($orderItem->cost_price ?? '0'), 2);
                 $publishTotal = bcadd($publishTotal, $publish, 2);
                 $actualTotal = bcadd($actualTotal, $actual, 2);