<?php
namespace ThirdPay;

use ThirdPay\KeyFormat;
use ThirdPay\KeyWorker;
use ThirdPay\Tools;
/**
*  修改版第3方支付
**/

class YueKaiPay
{   
	public $merNo = "";		//商户编号
	public $merAccount = "";//商户标识
	public $privateKey = "";//秘钥
	public $publicKey = ""; //公钥
	public $domain = ""; //接口域名地址

	public function __construct($merNo,$merAccount,$privateKey,$publicKey,$domain){
          $this->merNo = $merNo;
		  $this->merAccount = $merAccount;
		  $this->privateKey = $privateKey;
		  $this->publicKey = $publicKey;
          $this->domain = $domain;
	}

	public function order($param){
		$data = array(
			'merAccount' => $this->merAccount,//商户标识
			'merNo' => $this->merNo,//商户编号
			'time' => time(),//时间戳
			'orderId' => $param['order'],//订单号
			'amount' => $param['money'],//交易金额(分)
			'product' => $param['product'],//商品
			'productDesc' => $param['productDesc'],//商品描述 
			'payWay' => $param['payWay'],
			'payType' => $param['payType'],
			'openId' =>$param['openId'],
			'userIp' => Tools::get_client_ip(),
			'returnUrl' => $param['returnUrl'],//前端页面回调地址
			'notifyUrl' => $param['notifyUrl'],//后台回调地址
		);
		
		//签名信息
		$data['sign'] = $this->getSign($data,$this->privateKey);
		//var_dump(cookie('PAY_REFERER'));exit;
		//用密钥去加密
		$encode_data = Tools::encryptData($data,$this->privateKey);

		$post_data = array(
			'merAccount' => $this->merAccount,//商户标识
			'data' => $encode_data
		);

		$ret = $this->http($this->domain,$post_data);
		$retjson = json_decode($ret,true);

		if($retjson["code"] =="000000"){
			if($this->checkSign($retjson["data"],$this->publicKey)){
				return $retjson;	  
			} else {
				return json_encode(array("code"=>"100004","msg"=>"签名验证错误！"));
			}
		}else{
			return $retjson;
		}
	}

	public function http($url,$post_data){
		$ch = curl_init($url);
		$timeout = 6000;
		curl_setopt($ch, CURLOPT_POST, 1);
		curl_setopt($ch, CURLOPT_HEADER,0 );
		curl_setopt($ch, CURLOPT_FRESH_CONNECT, 1);
		curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
		curl_setopt($ch, CURLOPT_FORBID_REUSE, 1);
		curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
		curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); // 
		curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($post_data));
		$ret = curl_exec($ch);
		curl_close($ch);
		return $ret;
	}


	//签名方式
	public function getSign($params,$signKey){
		 ksort($params);
		  $data = "";
		  foreach ($params as $key => $value) {
		    $data .= trim($value);
		  }
		  $sign = strtoupper(md5($data.$signKey));
		  return $sign;
	}

	//验签
	public function checkSign($params,$signKey){
		ksort($params);
		$psign = "";
		$data = "";
		foreach ($params as $key => $value) {
		if($key == "sign") {
			$psign = $value;
		} else {
			$data .= $value;
		}
		}
		$sign = strtoupper(md5($data.$signKey));
		if($psign == $sign) {
		  return true;
		} else {
		  return false;
		};
	}
	

}