<?php
defined('BASEPATH') or exit('No direct script access allowed');

use GuzzleHttp\Client;
use GuzzleHttp\Exception\GuzzleException;

/**
 * 汽车之家外呼接口
 */
class CallOut
{
    const METHOD_GET = 'GET';
    const METHOD_POST = 'POST';

    protected $baseUrl = 'http://202.105.128.251:18082/bas_car_home_ping_tai/car/v1/call'; //正式接口地址
    protected $aesKey = 'AmUFhqX2IOI48BwdgAXVsQgvncCD0f5X'; //AES秘钥
    protected $ctiType = 'QCZJ'; //平台类型，固定QCZJ
    protected $ci;
    protected $client;
//    生产环境：
//    汽车之家外呼接口(互联网主线): http://202.105.128.251:18082/bas_car_home_ping_tai/car/v1/call
//    汽车之家外呼接口(互联网备线): http://218.18.234.155:18082/bas_car_home_ping_tai/car/v1/call
//    测试环境：
//    汽车之家外呼接口(互联网主线): http://202.105.128.251:18081/bas_car_home_ping_tai/car/v1/call
//    汽车之家外呼接口(互联网备线): http://218.18.234.155:18081/bas_car_home_ping_tai/car/v1/call
    private $logDir = 'carHome';

    public function __construct()
    {
        $this->ci = &get_instance();
        $this->client = new Client();
        if (!is_product()) { //测试环境
            $this->baseUrl = 'http://202.105.128.251:18081/bas_car_home_ping_tai/car/v1/call';
            $this->aesKey = 'JKCDlCxTvwNumLQVAMQltfpuOSCSa6J9';
        }
    }

    public function call($orderId, $requestId, $agentPhoneNo, $customerPhoneNo, $agentId = '', $agentUm = '', $pushUrl = '')
    {
        $logPath = 'call.log';
        try {
//            $agentPhoneNo = '18350451617';
//            $customerPhoneNo = '13365081602';
            debug_log("加密前手机号:" . json_encode(['agentPhoneNo' => $agentPhoneNo, 'customerPhoneNo' => $customerPhoneNo]), $logPath, $this->logDir);
            $enAgentPhoneNo = $this->aesEcbPkcs5Encrypt($agentPhoneNo, $this->aesKey);
            $enCustomerPhoneNo = $this->aesEcbPkcs5Encrypt($customerPhoneNo, $this->aesKey);
            $params = [
                'orderId' => $orderId, //必选 String 订单号
                'agentPhoneNo' => $enAgentPhoneNo, //必选 String 坐席分机。坐席分机如采用AES加密，汽车之家系统传加密后的号码
                'customerPhoneNo' => $enCustomerPhoneNo, //必选 String 客户手机号码。加密规则与坐席分机一致
                'displayedPhoneNo' => '0', //必选 String 外显号码(传“0”和空值均为云中继外显)
            ];
            $agentId && $params['agentId'] = $agentId; //备选 String 坐席工号(汽车之家上报开通的中兴平台唯一cti号码)
            $agentUm && $params['agentUm'] = $agentUm; //备选 String 坐席Um(汽车之家人员um账号)
            $pushUrl && $params['pushUrl'] = $pushUrl; //如果有传此字段，那么推送话单数据，就推到这里
            $reqParams = [
                'ctiType' => $this->ctiType,
                'requestId' => $requestId,
                'para' => $params
            ];
            debug_log("请求参数:" . json_encode($reqParams, JSON_UNESCAPED_UNICODE), $logPath, $this->logDir);
            list($req, $header, $httpStatus) = $this->send($this->baseUrl, $reqParams, self::METHOD_POST);
            debug_log("响应状态码:" . $httpStatus, $logPath, $this->logDir);
            debug_log("响应结果:" . $req, $logPath, $this->logDir);
            $reqArr = json_decode($req, true);
            if (isset($reqArr['code']) && intval($reqArr['code']) == 200) {
                return new Myresponse(EXIT_SUCCESS, '操作成功', $reqArr);
            } else {
                throw new Exception($reqArr['msg']);
            }
        } catch (\Exception $e) {
            return new MyResponse(EXIT_ERROR, $e->getMessage());
        }
    }

    /**
     * AES-ECB模式加密，使用PKCS5Padding填充
     * @param string $data 待加密的数据
     * @param string $key 加密密钥（16/24/32字节，对应AES-128/192/256）
     * @return string 加密后的base64字符串
     */
    function aesEcbPkcs5Encrypt($data, $key)
    {
        // 检查密钥长度
        $keyLength = strlen($key);
        if (!in_array($keyLength, [16, 24, 32])) {
            throw new InvalidArgumentException("密钥长度必须是16、24或32字节");
        }

        // 根据密钥长度确定AES模式
        $cipher = 'AES-' . ($keyLength * 8) . '-ECB';

        // 执行加密，OPENSSL_RAW_DATA表示输出原始二进制，默认使用PKCS5填充
        $encrypted = openssl_encrypt($data, $cipher, $key, OPENSSL_RAW_DATA, '');

        // 返回base64编码结果（也可根据需要改为bin2hex输出16进制）
        return bin2hex($encrypted);
    }

    /**
     * AES-ECB模式解密，对应HEX格式的加密数据
     * @param string $hexData 加密后的十六进制字符串
     * @param string $key 解密密钥（与加密密钥相同）
     * @return string 解密后的原始数据
     */
    function aesEcbPkcs5DecryptFromHex($hexData, $key)
    {
        $keyLength = strlen($key);
        if (!in_array($keyLength, [16, 24, 32])) {
            throw new InvalidArgumentException("密钥长度必须是16、24或32字节");
        }

        $cipher = 'AES-' . ($keyLength * 8) . '-ECB';

        // 先将十六进制转回二进制，再解密
        $decrypted = openssl_decrypt(hex2bin($hexData), $cipher, $key, OPENSSL_RAW_DATA, '');
        return $decrypted;
    }

    public function send($url, $data = [], $type = self::METHOD_GET)
    {
        try {
            $options = [
                'headers' => [
                    'Content-Type' => 'application/json'
                ],
            ];
            if ($data) {
                $options['json'] = $data;
            }
            $response = $this->client->request($type, $url, $options);
//            $response = $this->client->post($url, [
//                'form_params' => $data,
//                // 可选：设置超时时间
//                'timeout'  => 5.0,
//            ]);
            return [$response->getBody()->getContents(), $options, $response->getStatusCode()];
        } catch (Exception $e) {
            debug_log($e->getMessage() . ' URL: ' . $url . ' Data: ' . json_encode($data));
            throw $e;
        }
    }
}