<?php

use think\Request;

class kdpay
{
    function oil_fee_jsapi_get($body, $orderid, $real_amount, $return_url = '', $notify_url = '')
    {

        $randsi = date("YmdHis") . date("YmdHis") . rand(1000, 9999);
        $array =
            [
                "mch_id" => 'KP10008973',
                "timestamp" => time(),
                "nonce_str" => $randsi,
                "sign_type" => 'MD5',
                "content" => json_encode([
                    "client_ip" => Request::instance()->ip(),
                    "out_trade_no" => $orderid,
                    "fee" => $real_amount * 100,//0.01
                    "body" => '南京倾枫充值',
                    "open_id" => '',
                    "notify_url" => $notify_url,
                    "return_url" => $return_url,
                ]),
            ];
        foreach (array_filter($array) as $k => $v) {
            $Parameters[$k] = $v;
        }
        //签名步骤一：按字典序排序参数
        ksort($Parameters);
        $buff = "";
        ksort($Parameters);
        foreach ($Parameters as $k => $v) {
            $buff .= $k . "=" . $v . "&";
        }
        $String = '';
        if (strlen($buff) > 0) {
            $String = substr($buff, 0, strlen($buff) - 1);
        }

        $String = $String . "&secret_key=" . 'psVr7sLJHNLNK7XEQrPKNBszbQaeHko6';
        //签名步骤三：MD5加密
        $String = md5($String);
        //签名步骤四：所有字符转为大写
        $strings = strtoupper($String);
        $array['sign'] = $strings;
        $res = json_decode(self::http_post('https://pay.kudianvip.com/openapi/pay/kdh5pay', json_encode($array)), true);

        if ($res['code'] != 0) {
            return '错误信息为：' . $res['msg'];
        }
        //返回参数格式设计
        if (!empty($res['result'])) {
            $res_data = json_decode($res['result'], true);

            if (!empty($res_data)) {
                $rs = $res_data['url'];
                return $rs;

            } else {
                return '错误信息为：' . $res['msg'];
            }
        } else {
            return '错误信息为：' . $res['msg'];
        }

    }

    /**
     * 酷点扫码支付
     * @param $body
     * @param $orderid
     * @param $real_amount
     * @param string $return_url
     * @param string $notify_url
     * @return mixed|string
     */
    function oil_fee_sm_get($body, $orderid, $real_amount, $return_url = '', $notify_url = '')
    {

        $randsi = date("YmdHis") . date("YmdHis") . rand(1000, 9999);
        $array =
            [
                "mch_id" => 'KP10008973',
                "timestamp" => time(),
                "nonce_str" => $randsi,
                "sign_type" => 'MD5',
                "content" => json_encode([
                    "payment" => 'WXPAY',
                    'trade_type' => 'SCANCODE',
                    "client_ip" => Request::instance()->ip(),
                    "out_trade_no" => $orderid,
                    "fee" => $real_amount * 100,//0.01
                    "body" => '南京倾枫充值',
                    "open_id" => '',
                    "notify_url" => $notify_url,
                    "sence_info" => [
                        "return_url" => $return_url,
                    ]
//                    "return_url"=>$return_url,
                ]),
            ];
        foreach (array_filter($array) as $k => $v) {
            $Parameters[$k] = $v;
        }
        //签名步骤一：按字典序排序参数
        ksort($Parameters);
        $buff = "";
        ksort($Parameters);
        foreach ($Parameters as $k => $v) {
            $buff .= $k . "=" . $v . "&";
        }
        $String = '';
        if (strlen($buff) > 0) {
            $String = substr($buff, 0, strlen($buff) - 1);
        }

        $String = $String . "&secret_key=" . 'psVr7sLJHNLNK7XEQrPKNBszbQaeHko6';
        //签名步骤三：MD5加密
        $String = md5($String);
        //签名步骤四：所有字符转为大写
        $strings = strtoupper($String);
        $array['sign'] = $strings;
        $res = json_decode(self::http_post('https://pay.kudianvip.com/openapi/pay/unifiedpay', json_encode($array)), true);

        if ($res['code'] != 0) {
            return '错误信息为：' . $res['msg'];
        }
        //返回参数格式设计
        if (!empty($res['result'])) {
            $res_data = json_decode($res['result'], true);

            if (!empty($res_data) && $res_data['status'] == 0) {
                $rs = $res_data['pay_info']['url'];
                return $rs;

            } else {
                return '错误信息为：' . $res['msg'];
            }
        } else {
            return '错误信息为：' . $res['msg'];
        }

    }

    function notifyVerify($data)
    {


        unset($data['sign']);

        foreach ($data as $k => $v) {
            $Parameters[$k] = $v;
        }
        //签名步骤一：按字典序排序参数
        ksort($Parameters);
        $buff = "";
        ksort($Parameters);
        foreach ($Parameters as $k => $v) {
            $buff .= $k . "=" . $v . "&";
        }

        $String = '';
        if (strlen($buff) > 0) {
            $String = substr($buff, 0, strlen($buff) - 1);
        }

        $String = $String . "&secret_key=" . 'psVr7sLJHNLNK7XEQrPKNBszbQaeHko6';
        //签名步骤三：MD5加密
        $String = md5($String);
        //签名步骤四：所有字符转为大写
        $strings = strtoupper($String);

        return $strings;

    }


    public function queryOrder($order_no)
    {

        $randsi = date("YmdHis") . date("YmdHis") . rand(1000, 9999);
        $array =
            [
                "mch_id" => 'KP10008973',
                "timestamp" => time(),
                "nonce_str" => $randsi,
                "sign_type" => 'MD5',
                "content" => json_encode([
                    "out_trade_no" => $order_no,
                ]),
            ];
        foreach (array_filter($array) as $k => $v) {
            $Parameters[$k] = $v;
        }
        //签名步骤一：按字典序排序参数
        ksort($Parameters);
        $buff = "";
        ksort($Parameters);
        foreach ($Parameters as $k => $v) {
            $buff .= $k . "=" . $v . "&";
        }
        $String = '';
        if (strlen($buff) > 0) {
            $String = substr($buff, 0, strlen($buff) - 1);
        }

        $String = $String . "&secret_key=" . 'psVr7sLJHNLNK7XEQrPKNBszbQaeHko6';
        //签名步骤三：MD5加密
        $String = md5($String);
        //签名步骤四：所有字符转为大写
        $strings = strtoupper($String);
        $array['sign'] = $strings;
        $res = json_decode(self::http_post('https://pay.kudianvip.com/openapi/pay/query', json_encode($array)), true);
        $res_data = json_decode($res, true);

        //对响应结果进行验签，具体见下面的验签示例
        if ($res_data['msg'] == 'SUCCESS') {
            return $res_data;
            echo '验签成功';
        } else {
            echo '验签失败';
            return false;
        }

    }


    /**
     * 使用http_post提交
     * @param $url
     * @param $params
     * @param bool $contentType
     * @return bool|mixed|string
     */
    function GetRandStr($length)
    {
        //字符组合
        $str = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
        $len = strlen($str) - 1;
        $randstr = '';
        for ($i = 0; $i < $length; $i++) {
            $num = mt_rand(0, $len);
            $randstr .= $str[$num];
        }
        return $randstr;
    }

    /**
     * 使用http_post提交
     * @param $url
     * @param $params
     * @param bool $contentType
     * @return bool|mixed|string
     */
    protected function http_post($url, $params, $contentType = true)
    {

        if (function_exists('curl_init')) {
            // curl方式
            $oCurl = curl_init();
            if (stripos($url, 'https://') !== FALSE) {
                curl_setopt($oCurl, CURLOPT_SSL_VERIFYPEER, FALSE);
                curl_setopt($oCurl, CURLOPT_SSL_VERIFYHOST, FALSE);
            }
            $string = $params;
            if (is_array($params)) {
                $aPOST = array();
                foreach ($params as $key => $val) {
                    $aPOST[] = $key . '=' . urlencode($val);
                }
                $string = join('&', $aPOST);
            }
            curl_setopt($oCurl, CURLOPT_URL, $url);
            curl_setopt($oCurl, CURLOPT_RETURNTRANSFER, 1);
            curl_setopt($oCurl, CURLOPT_POST, TRUE);
            //$contentType json处理
            if ($contentType) {
                $headers = array(
                    "Content-type: application/json;charset='utf-8'",
                );

                curl_setopt($oCurl, CURLOPT_HTTPHEADER, $headers);
//                echo $params;
                curl_setopt($oCurl, CURLOPT_POSTFIELDS, $params);
            } else {
                curl_setopt($oCurl, CURLOPT_POSTFIELDS, $string);
            }
            $response = curl_exec($oCurl);
            curl_close($oCurl);
            return $response;
        } elseif (function_exists('stream_context_create')) {
            // php5.3以上
            $opts = array(
                'http' => array(
                    'method' => 'POST',
                    'header' => 'Content-type: application/x-www-form-urlencoded',
                    'content' => http_build_query($params),
                )
            );
            $_opts = stream_context_get_params(stream_context_get_default());
            $context = stream_context_create(array_merge_recursive($_opts['options'], $opts));
            return file_get_contents($url, false, $context);
        } else {
            return FALSE;
        }
    }
}