<?php

namespace app\admin\library;

use app\admin\model\Admin;
use fast\Random;
use think\Cookie;
use think\Request;
use think\Session;

class Auth extends \fast\Auth
{

    protected $requestUri = '';

    public function __construct()
    {
        parent::__construct();
    }

    public function __get($name)
    {
        return Session::get('admin.' . $name);
    }

    public function login($username, $password, $keeptime = 0)
    {
        $admin = Admin::get(['username' => $username]);
        if (!$admin)
        {
            return false;
        }
        if ($admin->password != md5(md5($password) . $admin->salt))
        {
            $admin->loginfailure++;
            $admin->save();
            return false;
        }
        $admin->loginfailure = 0;
        $admin->logintime = time();
        $admin->token = Random::uuid();
        $admin->save();
        Session::set("admin", $admin);
        $this->keeplogin($keeptime);
        return true;
    }

    /**
     * 注销登录
     */
    public function logout()
    {
        $admin = Admin::get(intval($this->id));
        if (!$admin)
        {
            return true;
        }
        $admin->token = '';
        $admin->save();
        Session::delete("admin");
        Cookie::delete("keeplogin");
        return true;
    }

    /**
     * 自动登录
     * @return boolean
     */
    public function autologin()
    {
        $keeplogin = Cookie::get('keeplogin');
        if (!$keeplogin)
        {
            return false;
        }
        list($id, $keeptime, $expiretime, $key) = explode('|', $keeplogin);
        if ($id && $keeptime && $expiretime && $key && $expiretime > time())
        {
            $admin = Admin::get($id);
            if (!$admin)
            {
                return false;
            }
            //token有变更
            if ($key != md5(md5($id) . md5($keeptime) . md5($expiretime) . $admin->token))
            {
                return false;
            }
            Session::set("admin", $admin);
            //刷新自动登录的时效
            $this->keeplogin($keeptime);
            return true;
        }
        else
        {
            return false;
        }
    }

    /**
     * 刷新保持登录的Cookie
     * @param int $keeptime
     * @return boolean
     */
    protected function keeplogin($keeptime = 0)
    {
        if ($keeptime)
        {
            $expiretime = time() + $keeptime;
            $key = md5(md5($this->id) . md5($keeptime) . md5($expiretime) . $this->token);
            $data = [$this->id, $keeptime, $expiretime, $key];
            Cookie::set('keeplogin', implode('|', $data));
            return true;
        }
        return false;
    }

    public function check($name, $uid = '', $relation = 'or', $mode = 'url')
    {
        return parent::check($name, $this->id, $relation, $mode);
    }

    /**
     * 检测当前控制器和方法是否匹配传递的数组
     *
     * @param array $arr 需要验证权限的数组
     */
    public function match($arr = [])
    {
        $request = Request::instance();
        $arr = is_array($arr) ? $arr : explode(',', $arr);
        if (!$arr)
        {
            return FALSE;
        }

        // 是否存在
        if (in_array(strtolower($request->action()), $arr) || in_array('*', $arr))
        {
            return TRUE;
        }

        // 没找到匹配
        return FALSE;
    }

    /**
     * 检测是否登录
     *
     * @return boolean
     */
    public function isLogin()
    {
        return Session::get('admin') ? true : false;
    }

    /**
     * 获取当前请求的URI
     * @return string
     */
    public function getRequestUri()
    {
        return $this->requestUri;
    }

    /**
     * 设置当前请求的URI
     * @param string $uri
     */
    public function setRequestUri($uri)
    {
        $this->requestUri = $uri;
    }

    public function getGroups($uid = null)
    {
        $uid = is_null($uid) ? $this->id : $uid;
        return parent::getGroups($uid);
    }

    public function getRuleList($uid = null)
    {
        $uid = is_null($uid) ? $this->id : $uid;
        return parent::getRuleList($uid);
    }

    public function getUserInfo($uid = null)
    {
        $uid = is_null($uid) ? $this->id : $uid;

        return $uid != $this->id ? Admin::get(intval($uid)) : Session::get('admin');
    }

    public function getRuleIds($uid = null)
    {
        $uid = is_null($uid) ? $this->id : $uid;
        return parent::getRuleIds($uid);
    }

    public function isSuperAdmin()
    {
        return in_array('*', $this->getRuleIds()) ? TRUE : FALSE;
    }

}