screen/application/common/service/OrderRefundService.php

<?php
namespace app\common\service;

use addons\epay\library\Service;
use app\common\model\Payment;
use com\unionpay\acp\sdk\AcpService;
use fast\Arr;
use think\App;
use think\Model;
use Yansongda\Pay\Exceptions\BusinessException;
use Yansongda\Pay\Exceptions\GatewayException;

class OrderRefundService{
    /** @var Payment */
    protected $payment;
    /** @var Model */
    protected $refund;
    protected $body='退款';
    /**
     * @param Payment $payment
     */
    public function setPayment(Payment $payment): void
    {
        $this->payment = $payment;
    }

    /**
     * @param string $body
     */
    public function setBody(string $body): void
    {
        $this->body = $body;
    }
    /**
     * @param Model $refund
     */
    public function setRefund(Model $refund): void
    {
        $this->refund = $refund;
    }
    /**
     * @return mixed
     */
    public function getAmount($unit='y')
    {
        return moneyFormat($this->refund->getRefundAmount(),$unit);
    }

   public function companyBank(){

   }
   public function wechat(){
       try {
           Service::getApp('wechat','')->refund([
               'out_trade_no' => $this->payment->order_no,
               'out_refund_no' => $this->refund->order_no,
               'total_fee' => moneyFormat($this->payment->amount,'f'),
               'refund_fee' => $this->getAmount('f'),
               'refund_desc' => $this->body,
           ]);
           $this->refund->refundResult(true);
       }catch (GatewayException|BusinessException $e){
           throw_user($e->getMessage());
       }
   }
   public function alipay(){
       try {
           Service::getApp('alipay','')->refund([
               'out_trade_no' => $this->payment->order_no,
               'refund_amount' => $this->getAmount(),
           ]);
           $this->refund->refundResult(true);
       }catch (GatewayException $e){
           throw_user($e->raw['alipay_trade_refund_response']['sub_msg']);
       }
   }
   protected function notifyUrl(){
       return request()->root(true)."/index/payment/refund/order_no/".$this->refund->order_no;
   }
   public function bankUnion(){
       require __DIR__.'/../library/upacp_demo_b2c/sdk/acp_service.php';
        list($bool,$msg)=AcpService::refund($this->refund->order_no,$this->payment->pay_no,$this->getAmount('f'),$this->notifyUrl());
        user_log("OrderRefundService/bankUnion/{$this->refund->order_no}",compact('bool','msg'));
        if(!$bool){
            throw_user($msg);
        }
       $this->refund->refundResult(true);
   }
   public function otherUser(){}
   public function offline(){}
   public function pay(){
        $method=Arr::get(OrderPayService::$methods,$this->payment->pay_type);
        return App::invokeMethod([$this,$method]);
   }
}