<?php

require_once 'WxPay.Exception.php';
require_once 'WxPay.Config.php';
require_once 'WxPay.Data.php';

class WxPayApi
{
    public static function unifiedOrder($inputObj, $timeOut = 6)
    {
        $url = "https://api.mch.weixin.qq.com/pay/unifiedorder";
        if (!$inputObj->IsOut_trade_noSet()) {
            throw new WxPayException("The lack of a unified payment interface required parameter out_trade_no!");
        } else if (!$inputObj->IsBodySet()) {
            throw new WxPayException("The lack of a unified payment interface required parameter body!");
        } else if (!$inputObj->IsTotal_feeSet()) {
            throw new WxPayException("The lack of a unified payment interface required parameter total_fee!");
        } else if (!$inputObj->IsTrade_typeSet()) {
            throw new WxPayException("The lack of a unified payment interface required parameter trade_type!");
        }
        if ($inputObj->GetTrade_type() == "JSAPI" && !$inputObj->IsOpenidSet()) {
            throw new WxPayException("Unified payment interface, lack of required parameters openid! Trade_type JSAPI, the openid parameter is required!");
        }
        if ($inputObj->GetTrade_type() == "NATIVE" && !$inputObj->IsProduct_idSet()) {
            throw new WxPayException("Unified payment interface, lack of required parameters product_id! Trade_type JSAPI, the product_id parameter is required!");
        }
        if (!$inputObj->IsNotify_urlSet()) {
            $inputObj->SetNotify_url(WxPayConfig::NOTIFY_URL);
        }
        $inputObj->SetAppid(WxPayConfig::APPID);
        $inputObj->SetMch_id(WxPayConfig::MCHID);
        $inputObj->SetSpbill_create_ip($_SERVER['REMOTE_ADDR']);
        $inputObj->SetNonce_str(self::getNonceStr());
        $inputObj->SetSign();
        $xml = $inputObj->ToXml();
        $startTimeStamp = self::getMillisecond();
        $response = self::postXmlCurl($xml, $url, false, $timeOut);
        $result = WxPayResults::Init($response);
        self::reportCostTime($url, $startTimeStamp, $result);
        return $result;
    }

    public static function orderQuery($inputObj, $timeOut = 6)
    {
        $url = "https://api.mch.weixin.qq.com/pay/orderquery";
        if (!$inputObj->IsOut_trade_noSet() && !$inputObj->IsTransaction_idSet()) {
            throw new WxPayException("Order query interface, out_trade_no, transaction_id at least one!");
        }
        $inputObj->SetAppid(WxPayConfig::APPID);
        $inputObj->SetMch_id(WxPayConfig::MCHID);
        $inputObj->SetNonce_str(self::getNonceStr());
        $inputObj->SetSign();
        $xml = $inputObj->ToXml();
        $startTimeStamp = self::getMillisecond();
        $response = self::postXmlCurl($xml, $url, false, $timeOut);
        $result = WxPayResults::Init($response);
        self::reportCostTime($url, $startTimeStamp, $result);
        return $result;
    }

    public static function closeOrder($inputObj, $timeOut = 6)
    {
        $url = "https://api.mch.weixin.qq.com/pay/closeorder";
        if (!$inputObj->IsOut_trade_noSet()) {
            throw new WxPayException("The order of query interface, out_trade_no required!");
        }
        $inputObj->SetAppid(WxPayConfig::APPID);
        $inputObj->SetMch_id(WxPayConfig::MCHID);
        $inputObj->SetNonce_str(self::getNonceStr());
        $inputObj->SetSign();
        $xml = $inputObj->ToXml();
        $startTimeStamp = self::getMillisecond();
        $response = self::postXmlCurl($xml, $url, false, $timeOut);
        $result = WxPayResults::Init($response);
        self::reportCostTime($url, $startTimeStamp, $result);
        return $result;
    }

    public static function refund($inputObj, $timeOut = 6)
    {
        $url = "https://api.mch.weixin.qq.com/secapi/pay/refund";
        if (!$inputObj->IsOut_trade_noSet() && !$inputObj->IsTransaction_idSet()) {
            throw new WxPayException("Refund application interface, out_trade_no, transaction_id at least one!");
        } else if (!$inputObj->IsOut_refund_noSet()) {
            throw new WxPayException("The refund application interface, the lack of the required parameters out_refund_no!");
        } else if (!$inputObj->IsTotal_feeSet()) {
            throw new WxPayException("The refund application interface, the lack of the required parameters total_fee!");
        } else if (!$inputObj->IsRefund_feeSet()) {
            throw new WxPayException("The refund application interface, the lack of the required parameters refund_fee!");
        } else if (!$inputObj->IsOp_user_idSet()) {
            throw new WxPayException("The refund application interface, the lack of the required parameters op_user_id!");
        }
        $inputObj->SetAppid(WxPayConfig::APPID);
        $inputObj->SetMch_id(WxPayConfig::MCHID);
        $inputObj->SetNonce_str(self::getNonceStr());
        $inputObj->SetSign();
        $xml = $inputObj->ToXml();
        $startTimeStamp = self::getMillisecond();
        $response = self::postXmlCurl($xml, $url, true, $timeOut);
        $result = WxPayResults::Init($response);
        self::reportCostTime($url, $startTimeStamp, $result);
        return $result;
    }

    public static function refundQuery($inputObj, $timeOut = 6)
    {
        $url = "https://api.mch.weixin.qq.com/pay/refundquery";
        if (!$inputObj->IsOut_refund_noSet() && !$inputObj->IsOut_trade_noSet() && !$inputObj->IsTransaction_idSet() && !$inputObj->IsRefund_idSet()) {
            throw new WxPayException("A query interface, out_refund_no, out_trade_no, transaction_id, refund_id and four parameters required for a!");
        }
        $inputObj->SetAppid(WxPayConfig::APPID);
        $inputObj->SetMch_id(WxPayConfig::MCHID);
        $inputObj->SetNonce_str(self::getNonceStr());
        $inputObj->SetSign();
        $xml = $inputObj->ToXml();
        $startTimeStamp = self::getMillisecond();
        $response = self::postXmlCurl($xml, $url, false, $timeOut);
        $result = WxPayResults::Init($response);
        self::reportCostTime($url, $startTimeStamp, $result);
        return $result;
    }

    public static function downloadBill($inputObj, $timeOut = 6)
    {
        $url = "https://api.mch.weixin.qq.com/pay/downloadbill";
        if (!$inputObj->IsBill_dateSet()) {
            throw new WxPayException("Statement of interface, the lack of required parameters bill_date!");
        }
        $inputObj->SetAppid(WxPayConfig::APPID);
        $inputObj->SetMch_id(WxPayConfig::MCHID);
        $inputObj->SetNonce_str(self::getNonceStr());
        $inputObj->SetSign();
        $xml = $inputObj->ToXml();
        $response = self::postXmlCurl($xml, $url, false, $timeOut);
        if (substr($response, 0, 5) == "<xml>") {
            return "";
        }
        return $response;
    }

    public static function micropay($inputObj, $timeOut = 10)
    {
        $url = "https://api.mch.weixin.qq.com/pay/micropay";
        if (!$inputObj->IsBodySet()) {
            throw new WxPayException("Submit payment was swept in the API interface, the lack of required parameters body!");
        } else if (!$inputObj->IsOut_trade_noSet()) {
            throw new WxPayException("Submit payment was swept in the API interface, the lack of required parameters out_trade_no!");
        } else if (!$inputObj->IsTotal_feeSet()) {
            throw new WxPayException("Submit payment was swept in the API interface, the lack of required parameters total_fee!");
        } else if (!$inputObj->IsAuth_codeSet()) {
            throw new WxPayException("Submit payment was swept in the API interface, the lack of required parameters auth_code!");
        }
        $inputObj->SetSpbill_create_ip($_SERVER['REMOTE_ADDR']);
        $inputObj->SetAppid(WxPayConfig::APPID);
        $inputObj->SetMch_id(WxPayConfig::MCHID);
        $inputObj->SetNonce_str(self::getNonceStr());
        $inputObj->SetSign();
        $xml = $inputObj->ToXml();
        $startTimeStamp = self::getMillisecond();
        $response = self::postXmlCurl($xml, $url, false, $timeOut);
        $result = WxPayResults::Init($response);
        self::reportCostTime($url, $startTimeStamp, $result);
        return $result;
    }

    public static function reverse($inputObj, $timeOut = 6)
    {
        $url = "https://api.mch.weixin.qq.com/secapi/pay/reverse";
        if (!$inputObj->IsOut_trade_noSet() && !$inputObj->IsTransaction_idSet()) {
            throw new WxPayException("In order to cancel the API interface, the parameters out_trade_no and transaction_id must be filled in!");
        }
        $inputObj->SetAppid(WxPayConfig::APPID);
        $inputObj->SetMch_id(WxPayConfig::MCHID);
        $inputObj->SetNonce_str(self::getNonceStr());
        $inputObj->SetSign();
        $xml = $inputObj->ToXml();
        $startTimeStamp = self::getMillisecond();
        $response = self::postXmlCurl($xml, $url, true, $timeOut);
        $result = WxPayResults::Init($response);
        self::reportCostTime($url, $startTimeStamp, $result);
        return $result;
    }

    public static function report($inputObj, $timeOut = 1)
    {
        $url = "https://api.mch.weixin.qq.com/payitil/report";
        if (!$inputObj->IsInterface_urlSet()) {
            throw new WxPayException("The interface of URL, the lack of required parameters interface_url!");
        }
        if (!$inputObj->IsReturn_codeSet()) {
            throw new WxPayException("The return status code, the lack of required parameters return_code!");
        }
        if (!$inputObj->IsResult_codeSet()) {
            throw new WxPayException("Business results, lack of required parameters result_code!");
        }
        if (!$inputObj->IsUser_ipSet()) {
            throw new WxPayException("IP access interface, the lack of required parameters user_ip!");
        }
        if (!$inputObj->IsExecute_time_Set()) {
            throw new WxPayException("The interface required time-consuming, lack of parameter execute_time_!");
        }
        $inputObj->SetAppid(WxPayConfig::APPID);
        $inputObj->SetMch_id(WxPayConfig::MCHID);
        $inputObj->SetUser_ip($_SERVER['REMOTE_ADDR']);
        $inputObj->SetTime(date("YmdHis"));
        $inputObj->SetNonce_str(self::getNonceStr());
        $inputObj->SetSign();
        $xml = $inputObj->ToXml();
        $startTimeStamp = self::getMillisecond();
        $response = self::postXmlCurl($xml, $url, false, $timeOut);
        return $response;
    }

    public static function bizpayurl($inputObj, $timeOut = 6)
    {
        if (!$inputObj->IsProduct_idSet()) {
            throw new WxPayException("To generate a two-dimensional code, the lack of required parameters product_id!");
        }
        $inputObj->SetAppid(WxPayConfig::APPID);
        $inputObj->SetMch_id(WxPayConfig::MCHID);
        $inputObj->SetTime_stamp(time());
        $inputObj->SetNonce_str(self::getNonceStr());
        $inputObj->SetSign();
        return $inputObj->GetValues();
    }

    public static function shorturl($inputObj, $timeOut = 6)
    {
        $url = "https://api.mch.weixin.qq.com/tools/shorturl";
        if (!$inputObj->IsLong_urlSet()) {
            throw new WxPayException("Need to convert the URL, signature with the original string, the transmission requires URL encode!");
        }
        $inputObj->SetAppid(WxPayConfig::APPID);
        $inputObj->SetMch_id(WxPayConfig::MCHID);
        $inputObj->SetNonce_str(self::getNonceStr());
        $inputObj->SetSign();
        $xml = $inputObj->ToXml();
        $startTimeStamp = self::getMillisecond();
        $response = self::postXmlCurl($xml, $url, false, $timeOut);
        $result = WxPayResults::Init($response);
        self::reportCostTime($url, $startTimeStamp, $result);
        return $result;
    }

    public static function notify($callback, &$msg)
    {
        $xml = $GLOBALS['HTTP_RAW_POST_DATA'];
        try {
            $result = WxPayResults::Init($xml);
        } catch (WxPayException $e) {
            $msg = $e->errorMessage();
            return false;
        }
        return call_user_func($callback, $result);
    }

    public static function getNonceStr($length = 32)
    {
        $chars = "abcdefghijklmnopqrstuvwxyz0123456789";
        $str = "";
        for ($i = 0; $i < $length; $i++) {
            $str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
        }
        return $str;
    }

    public static function replyNotify($xml)
    {
        echo $xml;
    }

    private static function reportCostTime($url, $startTimeStamp, $data)
    {
        if (WxPayConfig::REPORT_LEVENL == 0) {
            return;
        }
        if (WxPayConfig::REPORT_LEVENL == 1 && array_key_exists("return_code", $data) && $data["return_code"] == "SUCCESS" && array_key_exists("result_code", $data) && $data["result_code"] == "SUCCESS") {
            return;
        }
        $endTimeStamp = self::getMillisecond();
        $objInput = new WxPayReport();
        $objInput->SetInterface_url($url);
        $objInput->SetExecute_time_($endTimeStamp - $startTimeStamp);
        if (array_key_exists("return_code", $data)) {
            $objInput->SetReturn_code($data["return_code"]);
        }
        if (array_key_exists("return_msg", $data)) {
            $objInput->SetReturn_msg($data["return_msg"]);
        }
        if (array_key_exists("result_code", $data)) {
            $objInput->SetResult_code($data["result_code"]);
        }
        if (array_key_exists("err_code", $data)) {
            $objInput->SetErr_code($data["err_code"]);
        }
        if (array_key_exists("err_code_des", $data)) {
            $objInput->SetErr_code_des($data["err_code_des"]);
        }
        if (array_key_exists("out_trade_no", $data)) {
            $objInput->SetOut_trade_no($data["out_trade_no"]);
        }
        if (array_key_exists("device_info", $data)) {
            $objInput->SetDevice_info($data["device_info"]);
        }
        try {
            self::report($objInput);
        } catch (WxPayException $e) {
        }
    }

    private static function postXmlCurl($xml, $url, $useCert = false, $second = 30)
    {
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_TIMEOUT, $second);
        if (WxPayConfig::CURL_PROXY_HOST != "0.0.0.0" && WxPayConfig::CURL_PROXY_PORT != 0) {
            curl_setopt($ch, CURLOPT_PROXY, WxPayConfig::CURL_PROXY_HOST);
            curl_setopt($ch, CURLOPT_PROXYPORT, WxPayConfig::CURL_PROXY_PORT);
        }
        curl_setopt($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($ch, CURLOPT_RETURNTRANSFER, TRUE);
        if ($useCert == true) {
            curl_setopt($ch, CURLOPT_SSLCERTTYPE, 'PEM');
            curl_setopt($ch, CURLOPT_SSLCERT, WxPayConfig::SSLCERT_PATH);
            curl_setopt($ch, CURLOPT_SSLKEYTYPE, 'PEM');
            curl_setopt($ch, CURLOPT_SSLKEY, WxPayConfig::SSLKEY_PATH);
        }
        curl_setopt($ch, CURLOPT_POST, TRUE);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $xml);
        $data = curl_exec($ch);
        if ($data) {
            curl_close($ch);
            return $data;
        } else {
            $error = curl_errno($ch);
            curl_close($ch);
            throw new WxPayException("Curl error, error code:$error");
        }
    }

    private static function getMillisecond()
    {
        $time = explode(" ", microtime());
        $time = $time[1] . ($time[0] * 1000);
        $time2 = explode(".", $time);
        $time = $time2[0];
        return $time;
    }
}

?>