<?php

namespace app\common\server;


class AppWechat
{

    private $wx_appid = "wx112eed47787bcc0a";
    private $wx_secret = "6fcc2b8fd22595bd88889157ad9cddd9";


    /**
     * 获取用户基础信息
     * @param mixed $code
     * @return array|\think\response\Json
     */
    public function getAccessToken($code)
    {
        //connect/oauth2/authorize
        //https://open.weixin.qq.com/connect/oauth2/authorize
        $url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=" . $this->wx_appid . "&secret=" . $this->wx_secret . "&code=" . $code . "&grant_type=authorization_code";
        $resUserInfo = $this->get_curl_data($url);
        if (isset($resUserInfo['errcode'])) {
            return null;
        }
        $openid = $resUserInfo['openid'];#openid
        $access_token = $resUserInfo['access_token']; # 7200
        $unionid = ''; # 7200
        if (isset($resUserInfo['unionid'])) {
            $unionid = $resUserInfo['unionid'];
        }
        $data = [
            'openid' => $openid,
            'unionid' => $unionid,
            'access_token_time' => $access_token,
        ];
        return $data;
    }

    /**
     * 拉取用户信息(需scope为 snsapi_userinfo)
     * @param mixed $data
     * @return mixed
     */
    public function getUserInfo($data)
    {
        $openid = $data['openid'];
        $access_token = $data['access_token_time'];
        //connect/oauth2/authorize
        $url = "https://api.weixin.qq.com/sns/userinfo?access_token=" . $access_token . "&openid=" . $openid . "&lang=zh_CN";
        $resUserInfo = $this->get_curl_data($url);
        if (isset($resUserInfo['errcode'])) {
            return null;
        }
        $user = $resUserInfo;#openid

        return $user;
    }
    public function getAccountUserInfo($code)
    {
        $account = $this->getAccessToken($code);
        if ($account) {
            return $this->getUserInfo($account);
        }
        return null;
    }
    /**
     * @param $url 请求链接
     */
    public function get_curl_data($url)
    {
        $headerArray = array("Content-type:application/json;", "Accept:application/json");
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_HTTPHEADER, $headerArray);
        $response = curl_exec($ch);
        if ($response) {
            curl_close($ch);
            return json_decode($response, true);
        } else {
            $error = curl_errno($ch);
            curl_close($ch);
            return ['errcode' => 1];
        }
    }


}