add: 增加微信手续费0的兼容

application/services/refund/RefundService.php

@@ -42,7 +42,7 @@ class RefundService
             throw new RefundException(['cus' => 2]);
         }
 
-        if(empty($ret['result']['user_id'] != $user_id)) {
+        if(empty($ret['result']['user_id']) || $ret['result']['user_id'] != $user_id) {
             throw new RefundException(['cus' => 3]);
         }
 
@@ -193,10 +193,11 @@ class RefundService
 
             $pay_order = PayOrder::getMaster('*', ['order_id'=>$where['order_id']]);
             // 总共手续费
-            $wx_tip = PayOrderClearing::getMaster('*', [
+            $wx_clear = PayOrderClearing::getMaster('*', [
                 'order_id'=>$where['order_id'],
                 'pay_order_id'=>$pay_order['pay_order_id'],
-                'pay_type'=>Dictionary::PAY_TYPE_IN]
+                'pay_type'=>406 //三方渠道手续费
+                ]
             );
 
             // 计算已退金额、已退手续费
@@ -210,7 +211,12 @@ class RefundService
                 $cleared_tip += $r['refund_wx_tip'];
             }
 
-            $wx_tip = Strategy::getWxTip($order_item['payment'], $pay_order['pay_amount'], $cleared_amount, $wx_tip['pay_amount'], $cleared_tip);
+            $wx_total_tip = 0;
+            if($wx_clear) {
+                $wx_total_tip = $wx_clear['pay_amount'];
+            }
+
+            $wx_tip = Strategy::getWxTip($order_item['payment'], $pay_order['pay_amount'], $cleared_amount, $wx_total_tip, $cleared_tip);
 
             $edit = [
                 'refund_order_status'=>Dictionary::REFUND_ORDER_STATUS_SEND,