<?php

namespace WebPlugin\Pay\Alibarcode;

use DOMDocument;
use WebPlugin\Pay\PayAbstract;
use WebPlugin\Pay\Reqparams;
use WebPlugin\Pay\Rspparams;

class Service extends PayAbstract
{
	
	var $config ;
	
	public function __construct(array $paymentParams)
	{
		$this->logProjectPrefix = 'alipay';
		$this->config = new Config();
		$myConfig = json_decode($paymentParams["pay_params"]);
		$this->config->partner = $myConfig->merchant_id;
		$this->config->alipay_key = $myConfig->merchant_key;
		$this->config->sellerMail = $myConfig->merchant_other_code;
	}
	
	/**
	 * 获取时间戳
	 */
	private function getTimestamp() {
		$url = "https://mapi.alipay.com/gateway.do?service=query_timestamp&partner=" . trim(strtolower($this->config->partner)) . "&_input_charset=" . trim(strtolower($this->config->input_charset));

		$doc = new DOMDocument();
		$doc->load($url);
		$itemEncrypt_key = $doc->getElementsByTagName("encrypt_key");
		$encrypt_key = $itemEncrypt_key->item(0)->nodeValue;

		return $encrypt_key;
		
	}
	
	public function getPayRequestPars(Reqparams $params)
	{
		$baseUrl = $this->getBaseNoticeUrl($params->isTest);
		$loseTime = intval(($params->orderTime + 7200 -time())/60);
	//	$loseTime = intval((strtotime(date("Y-m-d 10:00:00", strtotime("+1 day")))-time())/60); //第二天十点 
		$parameter = array(
            'service'           => $this->config->service,
            'partner'           => $this->config->partner,
            '_input_charset'    => $this->config->input_charset,
            'notify_url'        => $baseUrl . $this->config->notify_url,
            'return_url'        => $baseUrl . $this->config->return_url,
            /* 业务参数 */
            'subject'           =>  $params->goodsName,
            'out_trade_no'      => $params->orderCode,
//			'it_b_pay'  =>  $loseTime . 'm',
            'total_fee'             => $params->totalFee / 100,   //单位为元
            'payment_type'      => $this->config->payment_type,
			'seller_email' => $this->config->sellerMail,
			'sign_id_ext' =>$params->uid,
			'sign_name_ext' => $params->userName,
			'qr_pay_mode' => $this->config->qr_pay_mode
        );
		if($this->config->anti_fishing['timestamp_enable']) {
			$anti_phishing_key = $this->getTimestamp();
			if(!empty($anti_phishing_key)) {
				$parameter['anti_phishing_key'] = $anti_phishing_key;
			}
		}
		if($this->config->anti_fishing['ip_enable']) {
			$parameter['exter_invoke_ip'] = $params->spbill_create_ip;
		}
		
        if(!empty($params->paymentParameter)){
        	//使用快捷支付，但是支付宝扫码支付不用传token
   //     	$parameter['token'] = $params->paymentParameter;
        }
        ksort($parameter);
        reset($parameter);
        
		$param = '';
        $sign  = '';
        foreach ($parameter AS $key => $val)
        {
            $param .= "$key=" .urlencode($val). "&";
            $sign  .= "$key=$val&";
        }        
        $param = substr($param, 0, -1);
        $sign  = substr($sign, 0, -1). $this->config->alipay_key; 
               
        $result =  array(
			'pay_url' => $this->config->pay_url,
			'pars' => $param . "&sign=" . md5($sign). "&sign_type=" . $this->config-> sign_type,
			'reqType' => 'get'
		);
		return $result;
	}
	
	public function parseResponse(array $arrResponse)
	{
		/* 返回示例
		 * http://www.yohobuy.com/pay/notice/alibarcodereturn?buyer_email=tds%40smartunite.com&buyer_id=2088302294447308&exterface=create_direct_pay_by_user&is_success=T&notify_id=RqPnCoPT3K9%252Fvwbh3I7xtEV5W65QRToFQ5fPrXsVxt12e%252FExCtC1XNiKnuRwupLaVLAR&notify_time=2011-06-11+07%3A48%3A10&notify_type=trade_status_sync&out_trade_no=1061003000&payment_type=1&seller_email=shop%40yoho.cn&seller_id=2088001550230585&subject=YOHO%E5%95%86%E5%93%81&total_fee=0.01&trade_no=2011061199833830&trade_status=TRADE_SUCCESS&sign=ca1c49f58d17eaa57aac308d0ac64434&sign_type=MD5
		 */
		if(isset($arrResponse['q'])){
			unset($arrResponse['q']);
		}		
		$rsp = new Rspparams();
		if(!$this->checkResponse($arrResponse))
		{
			//验证不成功
			$rsp->payResult = -1; 
		}
		else
		{	
			$rsp->bankName = "";
			$outTradeNo = $arrResponse["out_trade_no"];
			$rsp->orderCode = $outTradeNo;
			$rsp->payResult = $this->convertResult($arrResponse["trade_status"]);
			$rsp->payTime = $arrResponse["gmt_payment"];
			$rsp->totalFee = $arrResponse["total_fee"];
			$rsp->resultMsg = $arrResponse["notify_type"];
			//添加支付订单号和交易号
			$rsp->payOrderCode = $outTradeNo;
			$rsp->tradeNo = $arrResponse['trade_no'];
			$rsp->bankBillNo = "";
		}
		return $rsp;		
	}
	
	protected function convertResult($resultCode)
	{
		if($resultCode == "TRADE_SUCCESS")
		{
			return 200;
		}
		return 400;
	}

	/**
	 * 除去数组中的空值和签名参数
	 * @param $para 签名参数组
	 * @return array 去掉空值与签名参数后的新签名参数组
	 */
	private function paraFilter($para) {
		$para_filter = array();
		foreach ($para as $key=>$val) {
			if($key == "sign" || $key == "sign_type" || $val == "")continue;
			else	$para_filter[$key] = $para[$key];
		}
		return $para_filter;
	}

	/**
	 * 对数组排序
	 * @param $para 排序前的数组
	 * @return 排序前的数组
	 */
	private function argSort($para) {
		ksort($para);
		reset($para);
		return $para;
	}

	/**
	 * 验证回复的正确性
	 * @see QPay_Utils_Abstract::verifResponse()
	 * @param array $arrResponse
	 * @return bool|void
	 */
	protected function checkResponse(array $arrResponse)
	{		
		ksort($arrResponse);
        reset($arrResponse);
        $sign = '';
        foreach ($arrResponse AS $key=>$val)
        {
            if ($key != 'sign' && $key != 'sign_type' && $key != 'code')
            {
                $sign .= "$key=$val&";
            }
        }
        $sign = substr($sign, 0, -1) . $this->config->alipay_key;

        return md5($sign) != $arrResponse['sign'] ? false : true;
		
	}
}