创建药品订单时，新增了药品明细的实际金额字段

app/Controller/TestController.php

@@ -467,7 +467,44 @@ class TestController extends AbstractController
     }
 
     public function test_17(){
-
+        // 测试计算药品订单明细实际金额
+//        $product_datas = array(
+//            array(
+//                "product_id" => 1,
+//                "product_price" => 10,
+//                "actual_product_price" => 10,
+//                "actual_quantity" => 2,
+//            ),
+//            array(
+//                "product_id" => 2,
+//                "product_price" => 20,
+//                "actual_product_price" => 20,
+//                "actual_quantity" => 2,
+//            ),
+//            array(
+//                "product_id" => 3,
+//                "product_price" => 5,
+//                "actual_product_price" => 5,
+//                "actual_quantity" => 2,
+//            ),
+//        );
+//
+//        $coupons = array(
+//            array(
+//                "application_scope" => 1,
+//                "coupon_price" => 3,
+//                "product_id" => "",
+//            ),
+//            array(
+//                "application_scope" => 5,
+//                "coupon_price" => 1,
+//                "product_id" => "1",
+//            )
+//        );
+//
+//        $PatientOrderService = new PatientOrderService();
+//        $product_datas = $PatientOrderService->calculateProductOrderItemActualPrice($product_datas,$coupons);
+//        dump($product_datas);
     }
 
     // 退款

app/Model/OrderProductItem.php

@@ -18,6 +18,7 @@ use Hyperf\Snowflake\Concern\Snowflake;
  * @property int $product_id 商品id
  * @property string $product_name 商品名称
  * @property string $product_price 商品价格
+ * @property string $actual_product_price 实际商品价格
  * @property string $product_platform_code 商品处方平台编码
  * @property int $amount 数量
  * @property string $manufacturer 生产厂家
@@ -25,7 +26,7 @@ use Hyperf\Snowflake\Concern\Snowflake;
  * @property string $product_spec 商品规格
  * @property \Carbon\Carbon $created_at 创建时间
  * @property \Carbon\Carbon $updated_at 修改时间
- * @property-read Product $Product 
+ * @property-read Product|null $Product 
  */
 class OrderProductItem extends Model
 {
@@ -39,7 +40,7 @@ class OrderProductItem extends Model
     /**
      * The attributes that are mass assignable.
      */
-    protected array $fillable = ['product_item_id', 'order_product_id', 'order_inquiry_id', 'order_prescription_id', 'product_id', 'product_name', 'product_price', 'product_platform_code', 'amount', 'manufacturer', 'product_cover_img', 'product_spec', 'created_at', 'updated_at'];
+    protected array $fillable = ['product_item_id', 'order_product_id', 'order_inquiry_id', 'order_prescription_id', 'product_id', 'product_name', 'product_price', 'actual_product_price', 'product_platform_code', 'amount', 'manufacturer', 'product_cover_img', 'product_spec', 'created_at', 'updated_at'];
 
     protected string $primaryKey = "product_item_id";
 

app/Services/OrderPrescriptionService.php

@@ -176,6 +176,8 @@ class OrderPrescriptionService extends BaseService
      * 上报处方平台
      * @param string $order_product_id 商品订单id
      * @return bool
+     * @throws ContainerExceptionInterface
+     * @throws NotFoundExceptionInterface
      */
     public function reportPrescription(string $order_product_id): bool
     {

app/Services/PatientOrderService.php

@@ -1647,6 +1647,9 @@ class PatientOrderService extends BaseService
         // 获取可用优惠卷总金额
         $coupon_amount_total = $userCouponService->getCouponTotalPrice($user_coupons);
 
+        // 计算药品订单明细实际金额
+        $product_datas = $this->calculateProductOrderItemActualPrice($product_datas,$user_coupons);
+
         // 处理运费数据
         $app_env = config('app_env', 'prod');
         if ($app_env != "dev") {
@@ -1767,6 +1770,7 @@ class PatientOrderService extends BaseService
                 $data['product_id'] = $product_data['product_id'];
                 $data['product_name'] = $product_data['product_name'];
                 $data['product_price'] = bcmul((string)$product_data['product_price'], (string)$product_data['actual_quantity'], 3);
+                $data['actual_product_price'] = $product_data['actual_product_price'];
                 $data['product_platform_code'] = $product_data['product_platform_code'];
                 $data['amount'] = $product_data['product_num'];
                 $data['manufacturer'] = $product_data['manufacturer'];
@@ -3404,4 +3408,98 @@ class PatientOrderService extends BaseService
 
         return "";
     }
+
+    /**
+     * 计算药品订单明细实际金额
+     * 此方法暂不考虑按品牌，按类别使用情况
+     * @param array $product_datas 药品数据
+     * @param array $coupons 优惠券数据
+     * @return array
+     */
+    public function calculateProductOrderItemActualPrice(array &$product_datas, array $coupons): array
+    {
+        if (empty($coupons)){
+            return $product_datas;
+        }
+
+        foreach ($product_datas as &$product_data){
+            $product_data["actual_product_price"] = bcmul(
+                $product_data['actual_product_price'],
+                $product_data['actual_quantity'],
+                3
+            );
+        }
+
+        // 处理单一商品使用优惠券
+        foreach ($coupons as $coupon){
+            // 适用范围（1:全场通用 2:问诊 3:按品牌适用 4:按类别适用 5:单品使用 6:全品类药品）
+            if ($coupon["application_scope"] == 5){
+                $product_ids = explode(',',$coupon['product_id']);
+                foreach ($product_datas as &$product_data){
+                    if (in_array($product_data['product_id'],$product_ids)){
+                        $product_data["actual_product_price"] = bcsub(
+                            $product_data['actual_product_price'],
+                            $coupon['coupon_price'],
+                            2
+                        );
+                    }
+                }
+            }
+        }
+
+        // 处理订单通用优惠券
+        $coupon_total_amount = 0;  // 订单通用优惠券总金额
+        foreach ($coupons as $coupon){
+            // 适用范围（1:全场通用 2:问诊 3:按品牌适用 4:按类别适用 5:单品使用 6:全品类药品）
+            if ($coupon["application_scope"] == 6 || $coupon["application_scope"] == 1){
+                $coupon_total_amount = bcadd($coupon_total_amount,$coupon['coupon_price'],2);
+            }
+        }
+
+        if ($coupon_total_amount != 0){
+            $product_total_amount = 0;  // 订单明细总金额
+            foreach ($product_datas as &$product_data){
+                $product_total_amount = bcadd(
+                    $product_total_amount,
+                    $product_data['actual_product_price'],
+                    3
+                );
+            }
+
+            $used_coupon_total_amount = 0; // 已使用的优惠券金额
+            foreach ($product_datas as &$product_data){
+                // 本商品可优惠的金额 = （商品价格 / 商品总价格） * 优惠券总金额
+                $amount = bcmul(
+                    bcdiv(
+                        $product_data['actual_product_price'],
+                        $product_total_amount,
+                        2
+                    ),
+                    $coupon_total_amount,
+                    2
+                );
+
+                // 分配当前商品的优惠金额 = 原金额 - 本商品可优惠的金额
+                $product_data["actual_product_price"] = bcsub(
+                    $product_data['actual_product_price'],
+                    $amount,
+                    2
+                );
+
+                $used_coupon_total_amount = bcadd($used_coupon_total_amount,$amount,2);
+            }
+
+            // 处理浮点误差，将剩余金额分配到第一个商品
+            $remaining_amount = bcsub($coupon_total_amount,$used_coupon_total_amount,2);
+            if ($remaining_amount != 0){
+                $product_datas[0]['actual_product_price'] = bcsub(
+                    $product_datas[0]["actual_product_price"],
+                    $remaining_amount,
+                    2
+                );
+            }
+        }
+
+        return $product_datas;
+    }
 }