<?php
namespace app\expand\controller;
use app\common\service\HelperService;
use app\common\service\OpensslService;
use think\Validate;
use think\Cache;

/**
 * 京东支付接口
 * Class Alipay
 * @package app\expand\controller
 */
class JdPay extends BaseAuth
{
    private $_Account = null;
    private $_merchant = null;
    private $_notifyUrl = null;//异步通知地址
    private $_notifyUrlArr = [];//通知给调用方的地址
    private $_notifyApiCode = null;

    public function __construct(){
        
        parent::__construct();
        
        if($this->_inWhiteList){
            return true;
        }
        
        $this->_notifyUrl = "http://{$_SERVER['HTTP_HOST']}/v1/notifyJdPay";
        $this->_Account = $this->getKey($this->_apiCode);
        //验证是否具有访问这个接口的权限
        if(!isset($this->_Account['jdMerchant'])
                || !isset($this->_Account['jdDesKey']) 
                || !isset($this->_Account['jdNotifyUrlArr']) ){
            
            HelperService::returnJson(['code'=>400,'msg'=>'jdPay interface unauthorized access','data'=>[]]);
        }

        $this->_merchant = $this->_Account['jdMerchant'];
    }


    /**
     * 平台版京东支付
     */
    public function platformJdPay(){

        $params = $this->_sysParams;

        $rule = [
            //'showPayStoreName|收银台展示收款商户'=>'require',
            'orderNo|订单号'=>'require',
            'tradeName|订单商品名'=>'require',
            'amount|支付金额(分)'=>'require|number',
            'orderType|支付类型（0、实物;1、虚拟）订单'=>'require|number|between:0,1',
            'callbackUrl|同步回调地址'=>'require',
            'userId|用户id(保证唯一即可/免登)'=>'require'
        ];
        
        $validate = new Validate($rule);
        if(!$validate->check($params)){
            HelperService::returnJson(['code'=>400,'msg'=>$validate->getError()]);
        }

        
        $requestArr = [
            //'payMerchant'=>"{$params['showPayStoreName']}",//收银台展示的收款商户，默认为商户号对应的商户,
            'tradeNum'=>"{$params['orderNo']}",//交易流水号
            'tradeName'=>"{$params['tradeName']}",//商户订单的标题/商品名称/关键字等
            'tradeTime'=>date('YmdHis'),//订单生成时间。格式：“yyyyMMddHHmmss”
            'amount'=>"{$params['amount']}",//金额(分)，大于0
            'orderType'=>"{$params['orderType']}",//订单类型，0实物；1虚拟
            'currency'=>'CNY',//货币种类
            'callbackUrl'=>"{$params['callbackUrl']}",//同步通知url
            'notifyUrl'=>$this->_notifyUrl,//异步通知url
            'userId'=>"{$params['userId']}"
        ];
            
        $signArr=[
            'version'=>'V2.0',
            'merchant'=>$this->_merchant//商户号
        ];
            
        $createSignArr = array_merge($signArr,$requestArr);
            
        $sign = $this->getSign($createSignArr);
        
        $signArr['sign'] = $sign;
        
        $encryRequestArr = $this->encryptQuery($requestArr);

        $url = 'https://h5pay.jd.com/jdpay/saveOrder';//统一下单支付
        
        $html = $this->_createHtml($url, array_merge($encryRequestArr,$signArr));
        
        HelperService::addLog($createSignArr, $url, 'JDPAY');
        $this->assign('html',$html);
        return $this->fetch('jdpay/pay');
    }
    
    private function _createHtml($url,$postParams){
        $html = "<form action='$url' id='postFrom' method='post'>";
        foreach($postParams as $key=>$val){
            $html .="<input name='{$key}' type='hidden' value='{$val}' />";
        }
        $html .= "</form>";
        return $html;
    }

    public function notifyJdPay(){
        
        $oldParams = $this->_oldParams;
        $url = HelperService::getHttpHeader().$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'];

        try{
            
            $resData = $this->decryptResXml($oldParams);
            
            if($resData['result']['code']=='000000'){
                
                $tradeNum = isset($resData['tradeNum'])?$resData['tradeNum']:"";
                //一年之内，同一笔订单不能复现，否则屏蔽
                if(Cache::has("JD{$tradeNum}")){
                    HelperService::addLog(['resData'=>$resData,'return'=>'success'], $url, 'JDPAY');
                    die('success');
                }
                
                foreach($this->_notifyUrlArr  as $notifyUrl){
                    $isSsl = strpos($notifyUrl, 'https://')!==false?true:false;
                    
                    $postData = json_encode($resData);
                    $times = 3;
                    while ($times--){
                          $res = HelperService::httpPost($notifyUrl,$postData, $isSsl);
                          HelperService::addLog(['request'=>$postData,'res'=>$res,'times'=>$times], $notifyUrl, "JDPAY_DETAIL");
                          if($res !== false){
                              break;
                          }
                    }
                }
                
                Cache::set("JD{$tradeNum}",time(),365*86400);
                
                HelperService::addLog(['resData'=>$resData,'return'=>'success'], $url, 'JDPAY');
                die('success');
            }
            
            HelperService::addLog(['resData'=>$resData,'return'=>'fail'], $url, 'JDPAY');
            die('fail');
            
        }  catch (\Exception $ex){
            
            HelperService::addLog(['resData'=>$oldParams,'return'=>$ex->getMessage()], $url, 'JDPAY');
            die('fail');
        }
    }

    private function getSign($param){
        
        ksort($param);
        $queryStr = $this->httpBuildQuery($param);
        
        $sha256SourceSignString = hash("sha256", $queryStr);
        $sign = OpensslService::encryptByPrivateKey($this->_apiCode, $sha256SourceSignString);

        return $sign;
    }
    
    private function httpBuildQuery($arr=[]){
        $queryStr = '';
        foreach($arr as $key=>$val){
            if($val===""){
                continue;
            }
            if(!empty($queryStr)){
                $queryStr.='&';
            }
            $queryStr .= "$key=$val";
        }
        
        return $queryStr;
    }
    
    private function encryptQuery($param){
        
        $desKey = $this->_Account['jdDesKey'];
        $keys = base64_decode($desKey);
        
        foreach($param as &$val){
            $val = OpensslService::encrypt2HexStr($keys, $val);
        }
        
        return $param;
    }
    
    private function decryptResXml($resultData){
        
        $resultXml = simplexml_load_string($resultData);
        
        $resultObj = json_decode(json_encode($resultXml),TRUE);
        if(!isset($resultObj["encrypt"])){
            die($resultXml);
        }
        $encryptXml = $resultObj["encrypt"];
        $encryptStr=base64_decode($encryptXml);
        
        $desKey = $this->_getJdDesKeyByMerchant($resultObj['merchant']);
        
        $keys = base64_decode($desKey);
        $reqBody = OpensslService::decrypt4HexStr($keys, $encryptStr);
        //echo "请求返回encrypt Des解密后:".$reqBody."\n";
        $bodyXml = simplexml_load_string($reqBody);
        //echo "请求返回encrypt Des解密后:".$bodyXml->saveXML()."\n";
        $resData = json_decode(json_encode($bodyXml),TRUE);
        
        return $resData;
    }
    
    /**
     * 遍历目录下该jd商户号是否等于回传的商户号
     * @param type $merchant
     * @return type
     */
    private function _getJdDesKeyByMerchant($merchant){
        
        $fileList = scandir("COMPANY_LIST");
        foreach($fileList as $fileName){
            $authFileName = "COMPANY_LIST/$fileName/auth.php";
            
            if(strpos($fileName,'.')===false && file_exists($authFileName)){
                $fileContent = require_once($authFileName);
                if(isset($fileContent['jdMerchant']) &&$fileContent['jdMerchant'] == $merchant){
                    //将异步通知接口回传
                    $this->_notifyUrlArr = $fileContent['jdNotifyUrlArr'];
                    $this->_notifyApiCode = $fileName;
                    return $fileContent['jdDesKey'];
                }
            }
        }
        
        HelperService::returnJson(['code'=>200,'msg'=>'desKey is error','data'=>[]]);
    }
}