screen/application/common/service/Refund.php

<?php
namespace app\common\service;


use addons\epay\library\Service;
use app\common\model\MobileOrder;

class Refund{
    protected $type;
    protected $mobileOrder;
    protected $types=[
        1=>'wechat',
        2=>'alipay',
    ];
    public static function setType(MobileOrder $mobileOrder){
        $a=new self;
        $a->mobileOrder=$mobileOrder;
        $a->type=$mobileOrder['pay_type'];
        return $a;
    }
    public function refund(){
        if(!isset($this->types[$this->type])){
            throw_user('此付款方式不支持退款');
        }
        $this->{$this->types[$this->type]}();
    }
    public function getAmount($unit='f'){
        return $unit=='y'?$this->mobileOrder['amount_refund']:$this->mobileOrder['amount_refund']*100;
    }
    public function wechat(){
        $res=Service::getApp('wechat',Service::refundUrl('wechat',$this->mobileOrder['pay_no']))->refund([
            'transaction_id'=>$this->mobileOrder['pay_no'],
            'out_refund_no'=>$this->mobileOrder['refund_no'],
            'total_fee'=>$this->mobileOrder['amount']*100,
            'refund_fee'=>$this->getAmount(),
            'op_user_id'=>Service::getWechatOpUser(),
        ]);
        if($res['return_code']!=='SUCCESS'){
            throw_user($res['return_msg']);
        }
        if($res['result_code']!='SUCCESS'){
            throw_user($res['err_code_des']);
        }
    }
    /**
     *["code"] => string(5) "10000"
    ["msg"] => string(7) "Success"
    ["buyer_logon_id"] => string(16) "xie***@gmail.com"
    ["buyer_user_id"] => string(16) "2088702452773896"
    ["fund_change"] => string(1) "Y"
    ["gmt_refund_pay"] => string(19) "2022-06-30 09:56:23"
    ["out_trade_no"] => string(26) "7dris4160g3k4hlmk69fdplav7"
    ["refund_fee"] => string(4) "0.01"
    ["send_back_fee"] => string(4) "0.00"
    ["trade_no"] => string(28) "2022063022001473891456574041"
     */
    public function alipay(){
        $res=Service::getApp('alipay',Service::refundUrl('alipay',$this->mobileOrder['pay_no']))->refund([
            'trade_no'=>$this->mobileOrder['pay_no'],
            'refund_amount'=>$this->getAmount('y'),
            'refund_reason'=>$this->reason(),
            'out_request_no'=>$this->mobileOrder['refund_no'],
        ]);
        if($res['code']!=10000){
            throw_user($res['msg']);
        }
        /*if($res['sub_code']!='TRADE_HAS_SUCCESS'){
            throw_user($res['sub_msg']);
        }*/
    }
    public function reason(){
        return sprintf("订单[%s]退款",$this->mobileOrder['order_no']);
    }
}