<?php


namespace App\Services;


use App\Util;
use http\Client\Curl\User;
use function GuzzleHttp\Psr7\build_query;

class SitoBank
{


    public $privateKey;
    public $publicKey;

    public $config;
    public function __construct()
    {
        $payConfigService = new PayConfig();
        $this->config = $payConfigService->getConfig('SitoBank');

        $this->publicKey = '-----BEGIN PUBLIC KEY-----'."\n".chunk_split($this->config['platPublicKey'], 64, "\n").'-----END PUBLIC KEY-----';
        $this->privateKey = '-----BEGIN PRIVATE KEY-----'."\n".chunk_split($this->config['mchPrivateKey'], 64, "\n").'-----END PRIVATE KEY-----';

    }
    public function sign($msg)
    {

        if (openssl_sign($msg, $sign, $this->privateKey, OPENSSL_ALGO_SHA256)) {
            return $sign;
        }
        return false;
    }

    public function verify($msg, $sign)
    {
        if (openssl_verify($msg, $sign, $this->publicKey, OPENSSL_ALGO_SHA256)) {
            return true;
        }
        return false;
    }


    public function getNonceStr( $length = 16 ) {
        $chars = "abcdefghijklmnopqrstuvwxyz0123456789";
        $str = "";
        for ( $i = 0; $i < $length; $i++ ) {
            $str .= substr( $chars, mt_rand( 0, strlen( $chars ) - 1 ), 1 );
        }
        return $str;
    }

    public function curlPost($url, $payload)
    {
        $timeout=20;
        $data = json_encode($payload);
        $sign = $this->sign($data);
        $signB64 = base64_encode($sign);
        $headers = [
            'X-Signature:' . $signB64,
            'X-Account:' . $this->config['merchantCode'],
            'Content-Type: application/json',
        ];


        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);  // 从证书中检查SSL加密算法是否存在
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
        curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);     // 设置超时限制防止死循环
        curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);

        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);

        $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        $result = curl_exec($ch);

        if(strstr($result,'code')){
            Util::WriteLog('sito_error','error_state_'.$httpCode."|".$result);
        }


        curl_close($ch);
        return $result;
    }


    public function notifySign($jsonStr,$sign){

        return  $this->verify($jsonStr,$sign);


    }


}