<?php

namespace App\Http\Controllers\Customer;

use App\Events\RechargeSucceed;
use App\Http\Controllers\Controller;
use App\Models\Recharge;
use Illuminate\Support\Facades\Log;

class PayCallbackController extends Controller
{
    public function index() {
        $notify = new \NotifyPub();
        //存储微信的回调
        $xml = isset($GLOBALS['HTTP_RAW_POST_DATA']) ? $GLOBALS['HTTP_RAW_POST_DATA'] : file_get_contents("php://input");
        Log::info($xml);
        $notify->saveData($xml);

        //验证签名，并回应微信。
        //对后台通知交互时，如果微信收到商户的应答不是成功或超时，微信认为通知失败，
        //微信会通过一定的策略（如30分钟共8次）定期重新发起通知，
        //尽可能提高通知的成功率，但微信不保证通知最终能成功。
        if ($notify->checkSign() == FALSE) {
            $notify->setReturnParameter("return_code", "FAIL");//返回状态码
            $notify->setReturnParameter("return_msg", "签名失败");//返回信息
        } else {
            $notify->setReturnParameter("return_code", "SUCCESS");//设置返回码
        }
        $returnXml = $notify->returnXml();
        echo $returnXml;

        if ($notify->checkSign() == TRUE) {
            if ($notify->data["return_code"] == "FAIL") {
                exit();
            }

            $recharge_serial = $notify->data["out_trade_no"];
            $pay = (new Recharge())->where("serial",$recharge_serial)->first();
            if (!$pay) exit();
            if ($pay->paid_at) exit();
            $transaction_id = $notify->data["transaction_id"];

            $update = [
                "paid_at" => date("Y-m-d H:i:s"),
                "payment_serial" => $transaction_id
            ];

            $result = $pay->update($update);
            //充值成功后处理
            if ($result) {
                event(new RechargeSucceed($pay));
            }
        }
    }
}