修复一些错误

app/Http/Controllers/Recon/BillController.php

@@ -5,9 +5,11 @@ namespace App\Http\Controllers\Recon;
 use App\Exceptions\RepositoryException;
 use App\Exports\BillExport;
 use App\Models\BillModel;
+use App\Models\StoreModel;
 use App\Services\BillDetailService;
 use Illuminate\Http\JsonResponse;
 use Illuminate\Http\Request;
+use Illuminate\Support\Facades\DB;
 use Maatwebsite\Excel\Facades\Excel;
 use Modules\AnnoRoute\Attribute\GetRoute;
 use Modules\AnnoRoute\Attribute\PutRoute;
@@ -119,7 +121,8 @@ class BillController extends BaseController
     }
 
     /**
-     * 确认收款：线下收款后手动登记付款信息，支付状态置为已支付
+     * 确认收款：线下收款后手动登记付款信息，支付状态置为已支付；
+     * 累加门店总采购金额（只统计商品金额）
      */
     #[PutRoute(route: '/{id}/pay', authorize: 'pay', where: ['id' => '[0-9]+'])]
     public function pay(int $id, Request $request): JsonResponse
@@ -132,20 +135,29 @@ class BillController extends BaseController
             'pay_remark.max' => '付款备注超过最大长度',
         ]);
 
-        $bill = BillModel::find($id);
-        if (empty($bill)) {
-            throw new RepositoryException('账单不存在');
-        }
-        if ($bill->status === BillModel::STATUS_PAID) {
-            throw new RepositoryException('账单已支付，请勿重复收款');
-        }
+        return DB::transaction(function () use ($id, $data, $request) {
+            $bill = BillModel::query()->lockForUpdate()->find($id);
+            if (empty($bill)) {
+                throw new RepositoryException('账单不存在');
+            }
+            if ($bill->status === BillModel::STATUS_PAID) {
+                throw new RepositoryException('账单已支付，请勿重复收款');
+            }
 
-        $bill->status = BillModel::STATUS_PAID;
-        $bill->paid_at = $data['paid_at'] ?? now();
-        $bill->pay_remark = (string) ($data['pay_remark'] ?? '');
-        $bill->paid_operator_id = (int) $request->user()->id;
-        $bill->save();
+            $bill->status = BillModel::STATUS_PAID;
+            $bill->paid_at = $data['paid_at'] ?? now();
+            $bill->pay_remark = (string) ($data['pay_remark'] ?? '');
+            $bill->paid_operator_id = (int) $request->user()->id;
+            $bill->save();
 
-        return $this->success([], '收款已登记');
+            // 累加门店总采购金额（只统计商品金额，不含配送费/附加金额）
+            $store = StoreModel::query()->lockForUpdate()->find($bill->store_id);
+            if ($store !== null) {
+                $store->total_purchase_amount = bcadd((string) $store->total_purchase_amount, (string) $bill->product_amount, 2);
+                $store->save();
+            }
+
+            return $this->success([], '收款已登记');
+        });
     }
 }