<?php
// +------------------------------------------------+
// |http://www.cjango.com                           |
// +------------------------------------------------+
// | 修复BUG不是一朝一夕的事情，等我喝醉了再说吧！  |
// +------------------------------------------------+
// | Author: 小陈叔叔 <Jason.Chen>                  |
// +------------------------------------------------+
namespace tools;

use cjango\Wechat;
use cjango\Wechat\Token;
use think\Cache;
use think\Config;
use think\Controller;
use think\Session;

/**
 * 所有模块的公共方法
 */
class Initialize extends Controller
{
    /**
     * 判断是否登录，返回当前UID
     * @return integer
     */
    final protected static function isLogin()
    {
        $user = Session::get('user_auth');
        if (empty($user)) {
            return 0;
        } else {
            return Session::get('user_auth_sign') == Crypt::dataAuthSign($user) ? $user['uid'] : 0;
        }
    }

    /**
     * 初始化微信
     * @return void
     */
    protected function initWechat()
    {
        $token  = Cache::get('wechat_access_token');
        $config = Config::get('wechat');
        if (!$token) {
            Wechat::instance($config);
            $token = Token::get();
            Cache::set('wechat_access_token', $token, 7200);
            $config['access_token'] = $token;
            Wechat::instance($config, true);
        } else {
            $config['access_token'] = $token;
            Wechat::instance($config);
        }
    }

    /**
     * 微信分享
     */
    protected function jsWechat()
    {
        $ticket = Cache::get('Wechat_ticket');
        $config = Config::get('wechat_config');
        self::initWechat();
        if (!$ticket) {
            $ticket = Token::ticket();
            Cache::set('Wechat_ticket', $ticket, 7000);
        }
        $now_time        = time();
        $wx['appid']     = $config['appid'];
        $wx['timestamp'] = $now_time;
        $wx['noncestr']  = $noncestr  = \tools\Str::random(32);
        $sign            = array(
            'noncestr'     => $noncestr,
            'jsapi_ticket' => $ticket,
            'timestamp'    => $now_time,
            'url'          => __SELF__,
        );
        ksort($sign);
        $signStr         = sha1(urldecode(http_build_query($sign)));
        $wx['signature'] = $signStr;
        return $wx;
    }

    /**
     * 模板变量赋值
     * @param string $name  变量名
     * @param mixed  $value 变量值
     */
    final public function __set($name, $value)
    {
        $this->view->$name = $value;
    }

    /**
     * 取得模板显示变量的值
     * @param string $name 模板变量
     * @return mixed|null
     */
    final public function __get($name)
    {
        return $this->view->$name ?? null;
    }
}