/**
 * 红包支付接口
 * @author gaoyl101
 */
class Groupredpack_pub extends Wxpay_client_pub
{
    var $code;//code码，用以获取openid
    var $openid;//用户的openid
    function __construct()
    {
        //设置接口链接
        $this->url = "https://api.mch.weixin.qq.com/mmpaymkttransfers/sendgroupredpack";
        //设置curl超时时间
        $this->curl_timeout = WxPayConf_pub::CURL_TIMEOUT;
    }
    /**
     * 生成接口参数xml
     */
    function createXml()
    {
        try
        {
            //检测必填参数
            if($this->parameters["mch_billno"] == null)
            {
                throw new SDKRuntimeException("缺少发红包接口必填参数mch_billno！"."<br>");
            }elseif ($this->parameters["send_name"] == null ) {
                throw new SDKRuntimeException("缺少发红包接口必填参数send_name！"."<br>");
            }elseif ($this->parameters["total_amount"] == null) {
                throw new SDKRuntimeException("缺少发红包接口必填参数total_amount！"."<br>");
            }elseif ($this->parameters["total_num"] == null) {
                throw new SDKRuntimeException("缺少发红包接口必填参数total_num！"."<br>");
            }elseif ($this->parameters["amt_type"] == null) {
                throw new SDKRuntimeException("缺少发红包接口必填参数amt_type！"."<br>");
            }elseif ($this->parameters["wishing"] == null) {
                throw new SDKRuntimeException("缺少发红包接口必填参数wishing！"."<br>");
            }elseif ($this->parameters["act_name"] == null) {
                throw new SDKRuntimeException("缺少发红包接口必填参数act_name！"."<br>");
            }elseif ($this->parameters["remark"] == null) {
                throw new SDKRuntimeException("缺少发红包接口必填参数remark！"."<br>");
            }
            $this->parameters["wxappid"] = WxPayConf_pub::APPID;//公众账号ID
            $this->parameters["mch_id"] = WxPayConf_pub::MCHID;//商户号
            $this->parameters["nonce_str"] = $this->createNoncestr();//随机字符串
            $this->parameters["re_openid"] = $this->openid;//用户openid
            $this->parameters["sign"] = $this->getSign($this->parameters);//签名
            return  $this->arrayToXml($this->parameters);
        }catch (SDKRuntimeException $e)
        {
            die($e->errorMessage());
        }
    }
    function sendRedpack()
    {
        $this->postXmlSSL();
        $this->result = $this->xmlToArray($this->response);
        return $this->result;
    }
    /**
     *     作用：生成可以获得code的url
     */
    function createOauthUrlForCode($redirectUrl)
    {
        $urlObj["appid"] = WxPayConf_pub::APPID;
        $urlObj["redirect_uri"] = "$redirectUrl";
        $urlObj["response_type"] = "code";
        $urlObj["scope"] = "snsapi_base";
        $urlObj["state"] = "STATE"."#wechat_redirect";
        $bizString = $this->formatBizQueryParaMap($urlObj, false);
        return "https://open.weixin.qq.com/connect/oauth2/authorize?".$bizString;
    }
    /**
     *     作用：生成可以获得openid的url
     */
    function createOauthUrlForOpenid()
    {
        $urlObj["appid"] = WxPayConf_pub::APPID;
        $urlObj["secret"] = WxPayConf_pub::APPSECRET;
        $urlObj["code"] = $this->code;
        $urlObj["grant_type"] = "authorization_code";
        $bizString = $this->formatBizQueryParaMap($urlObj, false);
        return "https://api.weixin.qq.com/sns/oauth2/access_token?".$bizString;
    }
    /**
     *     作用：通过curl向微信提交code，以获取openid
     */
    function getOpenid()
    {
        $url = $this->createOauthUrlForOpenid();
        //初始化curl
        $ch = curl_init();
        //设置超时
        curl_setopt($ch, CURLOP_TIMEOUT, $this->curl_timeout);
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,FALSE);
        curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,FALSE);
        curl_setopt($ch, CURLOPT_HEADER, FALSE);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
        //运行curl，结果以jason形式返回
        $res = curl_exec($ch);
        curl_close($ch);
        //取出openid
        $data = json_decode($res,true);
        $this->openid = $data[‘openid‘];
        return $this->openid;
    }
    /**
     *     作用：设置code
     */
    function setCode($code_)
    {
        $this->code = $code_;
    }
}

/**
     * 初始化
     */
    public function _initialize()
    {
        //引入WxPayPubHelper
        vendor(‘WxPayPubHelper.WxPayPubHelper‘);
    }

/**
     * 发送红包
     */
    public function sendRedpack()
    {
        //调用请求接口基类
        $Redpack = new \Groupredpack_pub();
        
        //=========步骤1：网页授权获取用户openid============
        //通过code获得openid
        if (!isset($_GET[‘code‘]))
        {
            //触发微信返回code码
            $reduct_uri = WEB_HOST."/index.php/Home/WxGroupRedPack/sendRedpack";
            $url = $Redpack->createOauthUrlForCode($reduct_uri);
            Header("Location: $url");
        }else
        {
            //获取code码，以获取openid
            $code = $_GET[‘code‘];
            $Redpack->setCode($code);
            $openid = $Redpack->getOpenId();
        }
         
        
        
        //商户订单号
        $Redpack->setParameter(‘mch_billno‘, C(‘WxPayConf_pub.APPID‘)."static");
        //商户名称
        $Redpack->setParameter(‘send_name‘, "gaoyl101");
        //用户openid
//         $Redpack->setParameter(‘re_openid‘, $parameterValue);
        //付款金额
        $Redpack->setParameter(‘total_amount‘, 100);
        //红包发放总人数
        $Redpack->setParameter(‘total_num‘, 3);
        $Redpack->setParameter(‘amt_type‘,‘ALL_RAND‘);
        //红包祝福语
        $Redpack->setParameter(‘wishing‘, "现金红包教程祝大家写代码快乐");
        //活动名称
        $Redpack->setParameter(‘act_name‘, "现金红包教程");
        //备注
        $Redpack->setParameter(‘remark‘, "现金红包教程祝大家写代码快乐");
        //以下是非必填项目
        //子商户号  
//         $Redpack->setParameter(‘sub_mch_id‘, $parameterValue);
//        //商户logo的url
//         $Redpack->setParameter(‘amt_list‘, ‘200|100|100‘);
        
        
        $result = $Redpack->sendRedpack();
        
        dump($result);
    }