lanzu_api_2021-12-26/app/Service/PayRefundService.php

<?php

namespace App\Service;

use App\Model\OrderMain;
use EasyWeChat\Factory;
use Hyperf\DbConnection\Db;
use App\Constants\ErrorCode;

class PayRefundService implements PayRefundServiceInterface
{
    /**
     * 微信支付退款
     */
    public function wxPayRefund($global_order_id)
    {
        $config = config('wxpay');
        $app = Factory::payment($config);
        $app['guzzle_handler'] = CoroutineHandler::class;

        $result = [
            'status' => 0,
            'msg'    => '退款成功'
        ];

        // 查询订单
        $orderMain = OrderMain::query()
                ->select('id','code','order_num','money','state')
                ->where('global_order_id',$global_order_id)
                ->where('pay_type',OrderMain::ORDER_PAY_WX)
                ->where(Db::raw('refund_time is null'))
                ->first();
        if(empty($orderMain)){
            return ['status'=>1, 'msg'=>'订单不存在或已退款'];
        }
        $optional = [];
        $result = $app->refund->byOutTradeNumber(
            $orderMain->code, 
            $orderMain->code, 
            $orderMain->money * 100, 
            $orderMain->money * 100, 
            $optional
        );
        return $result;
    }

}