<?php

define('AOP_SDK_DIR', __DIR__);
require_once __DIR__ . '/AopSdk.php';
require_once __DIR__ . '/AlipayConfig.php';
require_once __DIR__ . '/aop/AopClient.php';
require_once __DIR__ . '/aop/SignData.php';
require_once __DIR__ . '/aop/request/AlipayTradeQueryRequest.php';

class PayNotifyCallback{

    /**
     * 状态查询
     * @param string $orderSn
     * @return bool
     * @throws Exception
     */
    public function queryOrder($orderSn = '')
    {
        if (empty($orderSn)) {
            throw new Exception('订单号不能为空');
        }

        $aop = new AopClient ();
        $aop->signType = "RSA2";
        $aop->gatewayUrl = AlipayConfig::GATEWAY;
        $aop->appId = AlipayConfig::APPID;
        $aop->rsaPrivateKey = AlipayConfig::APPPRIVATEKEY;

        // 注意：这里是支付宝公钥，不是应用公钥
        $aop->alipayrsaPublicKey = AlipayConfig::ALIPAYPUBLICKEY;

        $tradeNo = '';
        $request = new AlipayTradeQueryRequest ();
        $request->setBizContent("{" .
            "\"out_trade_no\":\"$orderSn\"," .
            "\"trade_no\":\"$tradeNo\"" .
            "}");
        $result = $aop->execute($request);

        $responseNode = str_replace(".", "_", $request->getApiMethodName()) . "_response";
        $resultCode = $result->$responseNode->code;

        $ttbPay = model('TtbAutoList');
        $orderInfo = $ttbPay->fetchOrderInfo($orderSn);

        if(! empty($resultCode) && $resultCode == 10000) {
            if (empty($orderInfo)) {
                return false;
            }

            $tradeStatus = $result->$responseNode->trade_status;

            if ($tradeStatus == 'TRADE_SUCCESS') {
                // 已支付
                if ($orderInfo['pay_status'] == 1) {
                    return true;
                }

                return $ttbPay->paySuccess($orderSn, $result->$responseNode->trade_no);
                /*if ($result->$responseNode->total_amount == $orderInfo['pay_amount']) {
                    // 更新订单状态，用户账户余额，账户变化日志
                    return $ttbPay->paySuccess($orderSn, $result->$responseNode->trade_no);
                }*/
            } elseif ($tradeStatus == 'TRADE_CLOSED') {
                // 交易关闭
                if ($orderInfo['pay_status'] != 3) {
                    $ttbPay->updateOrder(
                        ['pay_status'  => 3, 'update_time' => NOW_TIMESTAMP],
                        ['order_sn' => $orderSn]
                    );
                }

                return 'TRADE_CLOSED';
            }
        }

        if (! empty($resultCode) && $resultCode == 40004) {
            // 支付宝返回交易不存在， 麻花网络数据库订单状态更改为已关闭
            if ($orderInfo['pay_status'] != 3) {
                $ttbPay->updateOrder(
                    ['pay_status'  => 3, 'update_time' => NOW_TIMESTAMP],
                    ['order_sn' => $orderSn]
                );
            }

            return 'TRADE_CLOSED';
        }

        return false;
    }

    // 支付回调验证
    public function callback()
    {
        $aop = new AopClient ();
        $aop->alipayrsaPublicKey = C('ALIPAY.ALI_PUBLIC_KEY');

        // 这里也需要支付宝公钥，不是应用公钥
        $result = $aop->rsaCheckV1($_POST, null, $_POST['sign_type']);

        if ($result) {
            if ($this->queryOrder($_POST['out_trade_no'])) {
                echo 'success';
                exit;
            }
        }

        echo 'error'; exit;
    }
}