<?php
namespace app\common\library\Douyin;


use think\Config;
use app\common\Service\ShopConfigService;
use think\Log;

class Service
{
    private $appid;
    private $secret;
    const GET_AUTH_CODE_URL = "https://open.douyin.com/platform/oauth/connect";
    const GET_ACCESS_TOKEN_URL = "https://open.douyin.com/oauth/access_token";
    const GET_USERINFO_URL = "https://open.douyin.com/oauth/userinfo/";

    /**
     * 构造函数
     * @param $sessionKey string 用户在小程序登录后获取的会话密钥
     * @param $appid string 小程序的appid
     */
    public function __construct($addons = "")
    {
        $appId =  ShopConfigService::getConfigField("shop.platform.douyin_mini_program.app_id", false);
        $secret = ShopConfigService::getConfigField("shop.platform.douyin_mini_program.secret", false);
        $this->secret = $secret;
        $this->appid = $appId;
    }

    /** 
     * 获取用户信息
    */

    public function getUserInfo($code,$anonymous_code ,$encryptedData='',$iv=''){
         //获取用户信息
         $queryarr = [
            "appid" => $this->appid ,
            "secret"   => $this->secret ,
            'code' =>$code,
        ];
        $ret = $this->curl_post('https://developer.toutiao.com/api/apps/v2/jscode2session',json_encode($queryarr));
        if ($ret){
            //解密数据
            if($encryptedData){
                $key = $ret['data']['session_key'];
                // $ret['mobile'] = $phone[''];
                $phone =  openssl_decrypt(base64_decode($encryptedData,true), 'AES-128-CBC', base64_decode($key), OPENSSL_RAW_DATA, base64_decode($iv));

                $ret['data']['mobile'] = json_decode($phone,true)['phoneNumber'];
            }
            // print_r($phone);die;
            return $ret;
        }
        
        return [];
    }

    /**
     * 获取用户信息
     * @param array $code
     * @return array
     */
    public function getUserInfo2($code)
    {
        //获取access_token
        $dataK = $this->getAccessToken($code);
        if ($dataK['data']['error_code'] != 0){
            return ["error_code"=>$dataK['data']['error_code'],"description"=>$dataK['data']['description']];
        }
        var_dump($dataK);
        $data = isset($dataK['data']) ? $dataK['data'] : $dataK;
        $access_token = isset($data['access_token']) ? $data['access_token'] : '';
        $refresh_token = isset($data['refresh_token']) ? $data['refresh_token'] : '';
        $expires_in = isset($data['expires_in']) ? $data['expires_in'] : 0;
        // print_r($dataK);die;
        if ($access_token) {
            $openid = isset($data['open_id']) ? $data['open_id'] : '';
            $unionid = isset($data['union_id']) ? $data['union_id'] : '';

            //获取用户信息
            $queryarr = [
                "access_token" => $access_token,
                "open_id"       => $openid
            ];
            $ret = $this->curl_post(self::GET_USERINFO_URL, $queryarr,["Content-Type"=>"application/json"]);
            var_dump($ret);
            $userinfo = $ret['data'];
            $userinfo['openid'] = $userinfo['open_id'];
            $userinfo['unionid'] = $userinfo['union_id'];

            if (!$userinfo || isset($userinfo['errcode'])) {
                return [];
            }
            $userinfo = $userinfo ? $userinfo : [];
            $userinfo['avatar'] = isset($userinfo['avatar']) ? $userinfo['avatar'] : '';

            $data = [
                'access_token'  => $access_token,
                'refresh_token' => $refresh_token,
                'expires_in'    => $expires_in,
                'openid'        => $openid,
                'unionid'       => $unionid,
                'userinfo'      => $userinfo
            ];
            return $data;
        }

        return [];
    }

    /**
     * 获取access_token
     * @param string code
     * @return array
     */
    public function getAccessToken($code = '')
    { 
        if (!$code) {
            return [];
        }
        $queryarr = array(
            "client_key"      => $this->appid,
            "client_secret"     => $this->sessionKey,
            "code"       => $code,
            "grant_type" => "authorization_code",
        );
        $response = $this->curl_post(self::GET_ACCESS_TOKEN_URL, $queryarr,["Content-Type"=>"application/json"]);
        return $response ? $response : [];
    }

    public function curl_post($url,$post_data,$header=[])
    {
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, false);
        curl_setopt($ch, CURLOPT_POST, true);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
        curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
        curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
        curl_setopt($ch, CURLOPT_HEADER, false); // 显示返回的Header区域内容

        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
        curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        $output = curl_exec($ch);
        curl_close($ch);
        return json_decode($output,true);
    }

}