<?php

class WxPayApi
{
	static public function unifiedOrder($inputObj, $timeOut = 6)
	{
		$url = 'https://api.mch.weixin.qq.com/pay/unifiedorder';

		if (!$inputObj->IsOut_trade_noSet()) {
			throw new WxPayException('缺少统一支付接口必填参数out_trade_no！');
		}
		else if (!$inputObj->IsBodySet()) {
			throw new WxPayException('缺少统一支付接口必填参数body！');
		}
		else if (!$inputObj->IsTotal_feeSet()) {
			throw new WxPayException('缺少统一支付接口必填参数total_fee！');
		}
		else if (!$inputObj->IsTrade_typeSet()) {
			throw new WxPayException('缺少统一支付接口必填参数trade_type！');
		}

		if ($inputObj->GetTrade_type() == 'JSAPI' && !$inputObj->IsOpenidSet()) {
			throw new WxPayException('统一支付接口中，缺少必填参数openid！trade_type为JSAPI时，openid为必填参数！');
		}

		if ($inputObj->GetTrade_type() == 'NATIVE' && !$inputObj->IsProduct_idSet()) {
			throw new WxPayException('统一支付接口中，缺少必填参数product_id！trade_type为JSAPI时，product_id为必填参数！');
		}

		if (!$inputObj->IsNotify_urlSet()) {
			$inputObj->SetNotify_url(WxPayConfig::$NOTIFY_URL);
		}

		$inputObj->SetAppid(WxPayConfig::$APPID);
		$inputObj->SetMch_id(WxPayConfig::$MCHID);
		$inputObj->SetSpbill_create_ip(self::getIp());
		$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;
	}

	static public function getIp()
	{
		$ip = '';

		if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {
			$ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
		}
		else if (isset($_SERVER['HTTP_CLIENT_IP'])) {
			$ip = $_SERVER['HTTP_CLIENT_IP'];
		}
		else {
			$ip = $_SERVER['REMOTE_ADDR'];
		}

		$ip_arr = explode(',', $ip);
		return $ip_arr[0];
	}

	static public 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('订单查询接口中，out_trade_no、transaction_id至少填一个！');
		}

		$inputObj->SetAppid(WxPayConfig::$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;
	}

	static public function closeOrder($inputObj, $timeOut = 6)
	{
		$url = 'https://api.mch.weixin.qq.com/pay/closeorder';

		if (!$inputObj->IsOut_trade_noSet()) {
			throw new WxPayException('订单查询接口中，out_trade_no必填！');
		}

		$inputObj->SetAppid(WxPayConfig::$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;
	}

	static public function refund($inputObj, $timeOut = 6)
	{
		$url = 'https://api.mch.weixin.qq.com/secapi/pay/refund';
		if (!$inputObj->IsOut_trade_noSet() && !$inputObj->IsTransaction_idSet()) {
			throw new WxPayException('退款申请接口中，out_trade_no、transaction_id至少填一个！');
		}
		else if (!$inputObj->IsOut_refund_noSet()) {
			throw new WxPayException('退款申请接口中，缺少必填参数out_refund_no！');
		}
		else if (!$inputObj->IsTotal_feeSet()) {
			throw new WxPayException('退款申请接口中，缺少必填参数total_fee！');
		}
		else if (!$inputObj->IsRefund_feeSet()) {
			throw new WxPayException('退款申请接口中，缺少必填参数refund_fee！');
		}
		else if (!$inputObj->IsOp_user_idSet()) {
			throw new WxPayException('退款申请接口中，缺少必填参数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;
	}

	static public 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('退款查询接口中，out_refund_no、out_trade_no、transaction_id、refund_id四个参数必填一个！');
		}

		$inputObj->SetAppid(WxPayConfig::$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;
	}

	static public function downloadBill($inputObj, $timeOut = 6)
	{
		$url = 'https://api.mch.weixin.qq.com/pay/downloadbill';

		if (!$inputObj->IsBill_dateSet()) {
			throw new WxPayException('对账单接口中，缺少必填参数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;
	}

	static public function micropay($inputObj, $timeOut = 10)
	{
		$url = 'https://api.mch.weixin.qq.com/pay/micropay';

		if (!$inputObj->IsBodySet()) {
			throw new WxPayException('提交被扫支付API接口中，缺少必填参数body！');
		}
		else if (!$inputObj->IsOut_trade_noSet()) {
			throw new WxPayException('提交被扫支付API接口中，缺少必填参数out_trade_no！');
		}
		else if (!$inputObj->IsTotal_feeSet()) {
			throw new WxPayException('提交被扫支付API接口中，缺少必填参数total_fee！');
		}
		else if (!$inputObj->IsAuth_codeSet()) {
			throw new WxPayException('提交被扫支付API接口中，缺少必填参数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;
	}

	static public 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('撤销订单API接口中，参数out_trade_no和transaction_id必须填写一个！');
		}

		$inputObj->SetAppid(WxPayConfig::$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;
	}

	static public function report($inputObj, $timeOut = 1)
	{
		$url = 'https://api.mch.weixin.qq.com/payitil/report';

		if (!$inputObj->IsInterface_urlSet()) {
			throw new WxPayException('接口URL，缺少必填参数interface_url！');
		}

		if (!$inputObj->IsReturn_codeSet()) {
			throw new WxPayException('返回状态码，缺少必填参数return_code！');
		}

		if (!$inputObj->IsResult_codeSet()) {
			throw new WxPayException('业务结果，缺少必填参数result_code！');
		}

		if (!$inputObj->IsUser_ipSet()) {
			throw new WxPayException('访问接口IP，缺少必填参数user_ip！');
		}

		if (!$inputObj->IsExecute_time_Set()) {
			throw new WxPayException('接口耗时，缺少必填参数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;
	}

	static public function bizpayurl($inputObj, $timeOut = 6)
	{
		if (!$inputObj->IsProduct_idSet()) {
			throw new WxPayException('生成二维码，缺少必填参数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();
	}

	static public function shorturl($inputObj, $timeOut = 6)
	{
		$url = 'https://api.mch.weixin.qq.com/tools/shorturl';

		if (!$inputObj->IsLong_urlSet()) {
			throw new WxPayException('需要转换的URL，签名用原串，传输需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;
	}

	static public 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);
	}

	static public 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;
	}

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

	static private function reportCostTime($url, $startTimeStamp, $data)
	{
		if (WxPayConfig::$REPORT_LEVENL == 0) {
			return NULL;
		}

		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 NULL;
		}

		$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) {
		}
	}

	static private 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出错，错误码:' . $error);
		}
	}

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

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

?>