处理优惠金额

app/Services/PatientOrderService.php

@@ -646,6 +646,13 @@ class PatientOrderService extends BaseService
             }
         }
 
+        // 处理优惠金额
+        $order_product['discount_amount'] = bcsub(
+            (string)$order_product['amount_total'],
+            (string)$order_product['payment_amount_total'],
+            2
+        );
+
         $result = array();
         $result['user_doctor'] = $user_doctor ?? [];
         $result['order_product'] = $order_product;
@@ -2269,6 +2276,9 @@ class PatientOrderService extends BaseService
         // 实际支付金额=商品总金额-优惠卷金额+运费金额
         $payment_amount_total = bcadd(bcsub($payment_amount_total, $coupon_amount_total, 2), $logistics_fee, 2);
 
+        // 药品优惠金额
+        $discount_amount = $discount_amount + $coupon_amount_total;
+
         // 获取收货地址
         $params = array();
         $params['user_id'] = $user_info['user_id'];