vendor/codeages/omnipay-wechatpay/src/Message/RefundOrderRequest.php

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<?php

namespace Omnipay\WechatPay\Message;

use Guzzle\Http\Client;
use Omnipay\Common\Exception\InvalidRequestException;
use Omnipay\Common\Message\ResponseInterface;
use Omnipay\WechatPay\Helper;
/**
 * Class RefundOrderRequest
 * @package Omnipay\WechatPay\Message
 * @link    https://pay.weixin.qq.com/wiki/doc/api/app.php?chapter=9_4&index=6
 * @method RefundOrderResponse send()
 */
class RefundOrderRequest extends \Omnipay\WechatPay\Message\BaseAbstractRequest
{
    protected $endpoint = 'https://api.mch.weixin.qq.com/secapi/pay/refund';
    /**
     * Get the raw data array for this message. The format of this varies from gateway to
     * gateway, but will usually be either an associative array, or a SimpleXMLElement.
     * @return mixed
     * @throws InvalidRequestException
     */
    public function getData()
    {
        $this->validate('app_id', 'mch_id', 'out_trade_no', 'cert_path', 'key_path');
        $data = array('appid' => $this->getAppId(), 'mch_id' => $this->getMchId(), 'device_info' => $this->getDeviceInfo(), 'transaction_id' => $this->getTransactionId(), 'out_trade_no' => $this->getOutTradeNo(), 'out_refund_no' => $this->getOutRefundNo(), 'total_fee' => $this->getTotalFee(), 'refund_fee' => $this->getRefundFee(), 'refund_fee_type' => $this->getRefundFee(), 'op_user_id' => $this->getOpUserId() ?: $this->getMchId(), 'nonce_str' => md5(uniqid()));
        $data = array_filter($data);
        $data['sign'] = \Omnipay\WechatPay\Helper::sign($data, $this->getApiKey());
        return $data;
    }
    /**
     * @return mixed
     */
    public function getOutTradeNo()
    {
        return $this->getParameter('out_trade_no');
    }
    /**
     * @param mixed $outTradeNo
     */
    public function setOutTradeNo($outTradeNo)
    {
        $this->setParameter('out_trade_no', $outTradeNo);
    }
    /**
     * @return mixed
     */
    public function getOpUserId()
    {
        return $this->getParameter('op_user_id');
    }
    /**
     * @param mixed $opUserId
     */
    public function setOpUserId($opUserId)
    {
        $this->setParameter('op_user_id', $opUserId);
    }
    /**