<?php
namespace wstmart\home\controller;
use wstmart\common\model\Payments as M;
use wstmart\common\model\Orders as OM;
use wstmart\common\model\LogMoneys as LM;
use wstmart\common\model\ChargeItems as CM;
/**
 * ============================================================================
 * 阿里支付控制器
 */
class Alipays extends Base{

	/**
	 * 初始化
	 */
	private $aliPayConfig;
	public function _initialize() {
		$this->aliPayConfig = array();
		$m = new M();
		$this->aliPayConfig = $m->getPayment("alipays");
	}
	
	/**
	 * 生成支付代码
	 */
	function getAlipaysUrl(){
		$payObj = input("payObj/s");
		$m = new OM();
		$obj = array();
		$data = array();
		$orderAmount = 0;
		$out_trade_no = "";
		$extra_common_param = "";
		$subject = "";
		$body = "";
		if($payObj=="recharge"){//充值
			$itmeId = (int)input("itmeId/d");
			$orderAmount = 0;
			if($itmeId>0){
				$cm = new CM();
				$item = $cm->getItemMoney($itmeId);
				$orderAmount = isSet($item["chargeMoney"])?$item["chargeMoney"]:0;
			}else{
				$orderAmount = (int)input("needPay/d");
			}
			
			$shopId = (int)session('WST_USER.shopId');
    		$targetType = ($shopId>0)?1:0;
			$targetId = (int)session('WST_USER.userId');
			if($targetType==1){//商家
				$targetId = $shopId;
			}
			$data["status"] = $orderAmount>0?1:-1;
			$out_trade_no = WSTOrderNo();
			$extra_common_param = $payObj."@".$targetId."@".$targetType."@".$itmeId;
			$subject = '钱包充值 ¥'.$orderAmount.'元';
			$body = '钱包充值';
		}else{
			$obj["orderNo"] = input("orderNo/s");
			$obj["isBatch"] = (int)input("isBatch/d");
			$data = $m->checkOrderPay($obj);
			if($data["status"]==1){
				$userId = (int)session('WST_USER.userId');
				$obj["userId"] = $userId;
				$order = $m->getPayOrders($obj);
				$orderAmount = $order["needPay"];
				$payRand = $order["payRand"];
				$out_trade_no = $obj["orderNo"]."a".$payRand;
				$extra_common_param = $payObj."@".$userId."@".$obj["isBatch"];
				$subject = '支付购买商品费用'.$orderAmount.'元';
				$body = '支付订单费用';
			}
		}
		
		if($data["status"]==1){
			$return_url = url("home/alipays/response","",true,true);
			$notify_url = url("home/alipays/aliNotify","",true,true);
			$parameter = array(
					'extra_common_param'=> $extra_common_param,
					'service'           => 'create_direct_pay_by_user',
					'partner'           => $this->aliPayConfig['parterID'],
					'_input_charset'    => "utf-8",
					'notify_url'        => $notify_url,
					'return_url'        => $return_url,
					/* 业务参数 */
					'subject'           => $subject,
					'body'  	        => $body,
					'out_trade_no'      => $out_trade_no,
					'total_fee'         => $orderAmount,
					'quantity'          => 1,
					'payment_type'      => 1,
					/* 物流参数 */
					'logistics_type'    => 'EXPRESS',
					'logistics_fee'     => 0,
					'logistics_payment' => 'BUYER_PAY_AFTER_RECEIVE',
					/* 买卖双方信息 */
					'seller_email'      => $this->aliPayConfig['payAccount']
			);
			ksort($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->aliPayConfig['parterKey'];
			$url = 'https://mapi.alipay.com/gateway.do?'.$param. '&sign='.md5($sign).'&sign_type=MD5';
			$data["url"] = $url;
		}

		return $data;
	}
	
	/**
	 * 支付结果同步回调
	 */
	function response(){
		$m = new OM();
		$request = $_GET;
		unset($request['_URL_']);
		$payRes = self::notify($request);
		if($payRes['status']){
			$extras = explode("@",$_GET['extra_common_param']);
			if($extras[0]=="recharge"){//充值
				if($extras[2]==1){
					$this->redirect(url("home/logmoneys/shopmoneys"));
				}else{
					$this->redirect(url("home/logmoneys/usermoneys"));
				}
			}else{
				$this->redirect(url("home/alipays/paysuccess"));
			}
		}else{
			$this->error('支付失败');
		}
	}
	
	/**
	 * 支付结果异步回调
	 */
	function aliNotify(){
		$m = new OM();
		$request = $_POST;
		$payRes = self::notify($request);
		if($payRes['status']){
			
			$extras = explode("@",$_POST['extra_common_param']);
			$rs = array();
			if($extras[0]=="recharge"){//充值
				$targetId = (int)$extras [1];
				$targetType = (int)$extras [2];
				$itemId = (int)$extras [3];
				$obj = array ();
				$obj["trade_no"] = $_POST['trade_no'];
				$obj["out_trade_no"] = $_POST["out_trade_no"];;
				$obj["targetId"] = $targetId;
				$obj["targetType"] = $targetType;
				$obj["itemId"] = $itemId;
				$obj["total_fee"] = $_POST['total_fee'];
				$obj["payFrom"] = 'alipays';
				// 支付成功业务逻辑
				$m = new LM();
				$rs = $m->complateRecharge ( $obj );
			}else{
				//商户订单号
				$obj = array();
				$tradeNo = explode("a",$_POST['out_trade_no']);
				$obj["trade_no"] = $_POST['trade_no'];
				$obj["out_trade_no"] = $tradeNo[0];
				$obj["total_fee"] = $_POST['total_fee'];
					
				$obj["userId"] = $extras[1];
				$obj["isBatch"] = $extras[2];
				$obj["payFrom"] = 'alipays';
				//支付成功业务逻辑
				$rs = $m->complatePay($obj);
			}
			
			if($rs["status"]==1){
				echo 'success';
			}else{
				echo 'fail';
			}
		}else{
			echo 'fail';
		}
	}
	
	/**
	 * 支付回调接口
	 */
	function notify($request){
		$returnRes = array('info'=>'','status'=>false);
		$request = $this->argSort($request);
		// 检查数字签名是否正确 
		$isSign = $this->getSignVeryfy($request);
		if (!$isSign){//签名验证失败
			$returnRes['info'] = '签名验证失败';
			return $returnRes;
		}
		if ($request['trade_status'] == 'TRADE_SUCCESS' || $request['trade_status'] == 'TRADE_FINISHED'){
			$returnRes['status'] = true;
		}
		return $returnRes;
	}
	
	/**
	 * 获取返回时的签名验证结果
	 */
	function getSignVeryfy($para_temp) {
		$parterKey = $this->aliPayConfig["parterKey"];
		//除去待签名参数数组中的空值和签名参数
		$para_filter = $this->paraFilter($para_temp);
		//对待签名参数数组排序
		$para_sort = $this->argSort($para_filter);
		//把数组所有元素，按照“参数=参数值”的模式用“&”字符拼接成字符串
		$prestr = $this->createLinkstring($para_sort);
	
		$isSgin = false;
		$isSgin = $this->md5Verify($prestr, $para_temp['sign'], $parterKey);
		return $isSgin;
	}
	
	/**
	 * 验证签名
	 */
	function md5Verify($prestr, $sign, $key) {
		$prestr = $prestr . $key;
		$mysgin = md5($prestr);
		if($mysgin == $sign) {
			return true;
		}else {
			return false;
		}
	}
	
	/**
	 * 把数组所有元素，按照“参数=参数值”的模式用“&”字符拼接成字符串
	 */
	function createLinkstring($para) {
		$arg  = "";
		while (list ($key, $val) = each ($para)) {
			$arg.=$key."=".$val."&";
		}
		//去掉最后一个&字符
		$arg = substr($arg,0,count($arg)-2);
		//如果存在转义字符，那么去掉转义
		if(get_magic_quotes_gpc()){$arg = stripslashes($arg);}
	
		return $arg;
	}
	
	/**
	 * 除去数组中的空值和签名参数
	 */
	function paraFilter($para) {
		$para_filter = array();
		while (list ($key, $val) = each ($para)) {
			if($key == "sign" || $key == "sign_type" || $val == "")continue;
			else    $para_filter[$key] = $para[$key];
		}
		return $para_filter;
	}
	
	/**
	 * 对数组排序
	 */
	function argSort($para) {
		ksort($para);
		reset($para);
		return $para;
	}
	
	/**
	 * 检查支付结果
	 */
	public function paySuccess() {
		return $this->fetch('order_pay_step3');
	}

}