优惠券排序

app/Controller/v3/OrderOnlineController.php

@@ -179,7 +179,16 @@ class OrderOnlineController extends BaseController
         $total = bcadd($total,$res['value_added_service']['price'],2);
         $total = bcadd($total,$res['location']['distribution_price'],2);
         $res['total'] = $total;
-
+        //优惠券排序
+        $collection = collect($res['coupon']['available']);
+        $sorted = $collection->sortBy(function ($product, $key) use ($total){
+            if($product['coupon']['discount_type'] == 2){
+                return bcmul($total,bcdiv($product['coupon']['discounts'],10,2),2);
+            }elseif($product['coupon']['discount_type'] == 1){
+                return bcsub($total,$product['coupon']['discounts'],2);
+            }
+        });
+        $res['coupon']['available'] = $sorted->values()->all();
         // 新增返回市场信息
         $res['market'] = $market;