<?php
// +----------------------------------------------------------------------
// | YFCMF [ WE CAN DO IT MORE SIMPLE ]
// +----------------------------------------------------------------------
// | Copyright (c) 2015-2016 http://www.rainfer.cn All rights reserved.
// +----------------------------------------------------------------------
// | Author: rainfer <81818832@qq.com>
// +----------------------------------------------------------------------
use thinksdk\ThinkOauth;

class SinaSDK extends ThinkOauth
{
    /**
     * 获取requestCode的api接口
     * @var string
     */
    protected $GetRequestCodeURL = 'https://api.weibo.com/oauth2/authorize';
    
    /**
     * 获取access_token的api接口
     * @var string
     */
    protected $GetAccessTokenURL = 'https://api.weibo.com/oauth2/access_token';
    
    /**
     * 获取scope的额外参数,可在配置中修改 URL查询字符串格式
     * @var string
     */
    protected $scope    = '';

    /**
     * API根路径
     * @var string
     */
    protected $ApiBase  = 'https://api.weibo.com/2/';


    /**
     * 请求Authorize访问地址
     */
    public function login()
    {
        setcookie('A_S', $this->timestamp, $this->timestamp + 600, '/');
        $this->initConfig();
        //Oauth 标准参数
        $params = array(
            'client_id' => $this->config['app_key'],
            'redirect_uri' => $this->config['callback'],
            'response_type' => $this->ResponseType,
            'state'         => $this->timestamp,
        );
        return $this->GetRequestCodeURL . '?' . http_build_query($params);
    }

    /**
     * 组装接口调用参数 并调用接口
     * @param  string $api    微博API
     * @param  string $param  调用API的额外参数
     * @param  string $method HTTP请求方法 默认为GET
     * @return json
     */
    public function call($api, $param = '', $method = 'GET', $multi = false)
    {
        /* 新浪微博调用公共参数 */
        $params = array(
            'access_token' => $this->token['access_token'],
            'uid'          => $this->openid(),
        );
        $vars = $this->param($params, $param);
        $data = $this->http($this->url($api, '.json'), $vars, $method, array(), $multi);
        return json_decode($data, true);
    }

    
    /**
     * 解析access_token方法请求后的返回值
     * @param string $result 获取access_token的方法的返回值
     */
    protected function parseToken($result)
    {
        $data = json_decode($result, true);
        if ($data['access_token'] && $data['expires_in'] && $data['remind_in'] && $data['uid']) {
            $data['openid'] = $data['uid'];
            unset($data['uid']);
            return $data;
        } else
            throw new Exception("获取新浪微博ACCESS_TOKEN出错：{$data['error']}");
    }

    /**
     * 获取当前授权应用的openid
     * @return string
     */
    public function openid()
    {
        $data = $this->token;
        if (isset($data['openid']))
            return $data['openid'];
        else
            throw new Exception('没有获取到新浪微博用户ID！');
    }
    
    public function userinfo()
    {
        $rsp = $this->call('users/show');
        if (!$rsp) {
            throw new Exception('接口访问失败！' . $rsp['msg']);
        } else {
            $userinfo = array(
                'openid'  => $this->openid(),
                'name' => $rsp['screen_name'],
                'head'    => $rsp['avatar_hd']
            );
            return $userinfo;
        }
    }


}