<?php

namespace app\admin\library;

use app\admin\model\Admin;
use fast\Random;
use fast\Tree;
use think\Config;
use think\Cookie;
use think\Db;
use think\Hook;
use think\Request;
use think\Session;

class Auth extends \fast\AuthTuzhi
{
    protected $_error = '';
    protected $requestUri = '';
    protected $breadcrumb = [];
    protected $id = '';
    protected $logined = false; //登录状态

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

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


    /**
     * 管理员登录
     *
     * @param string $username 用户名
     * @param string $password 密码
     * @param int    $keeptime 有效时长
     * @return  boolean
     */
    public function login($username, $password, $keeptime = 0)
    {
        $admin = Admin::get(['username' => $username]);
        if (!$admin) {
            $this->setError('Username is incorrect');
            return false;
        }
        if ($admin['status'] == 'hidden') {
            $this->setError('Admin is forbidden');
            return false;
        }
//        if (Config::get('fastadmin.login_failure_retry') && $admin->loginfailure >= 10 && time() - $admin->updatetime < 86400) {
//            $this->setError('Please try again after 1 day');
//            return false;
//        }

        if ($admin->password != md5(md5($password) . $admin->salt)) {
            $admin->loginfailure++;
            $admin->save();
            $this->setError('Password is incorrect');
            return false;
        }
        $admin->loginfailure = 0;
        $admin->logintime = time();
        $admin->loginip = request()->ip();
        $admin->token = Random::uuid();
        $admin->save();
        Session::set("admin", $admin->toArray());
        $this->keeplogin($keeptime);
        return true;
    }

    /**
     * 退出登录
     */
    public function logout()
    {
        $admin = Admin::get(intval($this->id));
        if ($admin) {
            $admin->token = '';
            $admin->save();
        }
        $this->logined = false; //重置登录状态
        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 (!$admin || !$admin->token) {
                return false;
            }
            //token有变更
            if ($key != md5(md5($id) . md5($keeptime) . md5($expiretime) . $admin->token . config('token.key'))) {
                return false;
            }
            $ip = request()->ip();
            //IP有变动
            if ($admin->loginip != $ip) {
                return false;
            }
            Session::set("admin", $admin->toArray());
            //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 . config('token.key'));
            $data = [$this->id, $keeptime, $expiretime, $key];
            Cookie::set('keeplogin', implode('|', $data), 86400 * 7);
            return true;
        }
        return false;
    }

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

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

        $arr = array_map('strtolower', $arr);
        // 是否存在
        if (in_array(strtolower($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()
    {
        if ($this->logined) {
            return true;
        }
        $admin = Session::get('admin');
        if (!$admin) {
            return false;
        }
        //判断是否同一时间同一账号只能在一个地方登录
        if (Config::get('fastadmin.login_unique')) {
            $my = Admin::get($admin['id']);
            if (!$my || $my['token'] != $admin['token']) {
                $this->logined = false; //重置登录状态
                Session::delete("admin");
                Cookie::delete("keeplogin");
                return false;
            }
        }
        //判断管理员IP是否变动
//        if (Config::get('fastadmin.loginip_check')) {
//            if (!isset($admin['loginip']) || $admin['loginip'] != request()->ip()) {
//                $this->logout();
//                return false;
//            }
//        }
        $this->logined = true;
        return true;
    }

    /**
     * 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;
    }

    /**
     * 检测当前管理员是否为讲师角色
     * @return boolean
     */
    public function isLecturer()
    {
        static $isLecturer = null;
        if (!is_null($isLecturer)) {
            return $isLecturer;
        }
        //获取当前管理员ID（通过 __get 从 session 读取，避免直接读取 protected $id 属性）
        $adminId = Session::get('admin.id');
        if (empty($adminId)) {
            $isLecturer = false;
            return false;
        }
        //超级管理员不属于讲师
        $rules = $this->getRuleIds($adminId);
        if (in_array('*', $rules)) {
            $isLecturer = false;
            return false;
        }
        //获取当前管理员所属的角色组ID
        $groupIds = Db::name('auth_group_access')->where('uid', $adminId)->column('group_id');
        if (empty($groupIds)) {
            //兼容部分管理员仅记录在 admin.group_id 的情况
            $groupId = Admin::where('id', $adminId)->value('group_id');
            $groupIds = $groupId ? [$groupId] : [];
        }
        if (empty($groupIds)) {
            $isLecturer = false;
            return false;
        }
        //讲师角色写死在代码中，通过固定ID判断
        $isLecturer = in_array(\app\admin\model\auth\Group::LECTURER_GROUP_ID, $groupIds);
        return $isLecturer;
    }

    /**
     * 获取管理员所属于的分组ID
     * @param int $uid
     * @return array
     */
    public function getGroupIds($uid = null)
    {
        $groups = $this->getGroups($uid);
        $groupIds = [];
        foreach ($groups as $K => $v) {
            $groupIds[] = (int)$v['group_id'];
        }
        return $groupIds;
    }

    /**
     * 获取管理员所属于的分组ID
     * @param int $uid
     * @return array
     */
    public function getGroupAuthRule($uid = null)
    {
        $rules = $this->getRuleList($uid);

        //$rules是一个数组，$rules=["user/aaa","user/bbb"],把数组成员中的“/”替换成“-”
        $rules = array_map(function ($item) {
            return str_replace('/', '-', $item);
        }, $rules);

        return $rules;
    }

    /**
     * 取出当前管理员所拥有权限的分组
     * @param boolean $withself 是否包含当前所在的分组
     * @return array
     */
    public function getChildrenGroupIds($withself = false)
    {
        //取出当前管理员所有的分组
        $groups = $this->getGroups();

        $groupIds = [];
        foreach ($groups as $k => $v) {
            $groupIds[] = $v['id'];
        }
        $originGroupIds = $groupIds;
        foreach ($groups as $k => $v) {
            if (in_array($v['pid'], $originGroupIds)) {
                $groupIds = array_diff($groupIds, [$v['id']]);
                unset($groups[$k]);
            }
        }
        // 取出所有分组
        $groupList = \app\admin\model\AuthGroup::select();
        $objList = [];

        foreach ($groups as $k => $v) {
            if ($v['rules'] === '*') {
                $objList = $groupList;
                break;
            }
            // 取出包含自己的所有子节点
            $childrenList = Tree::instance()->init($groupList, 'pid')->getChildren($v['id'], true);
            $obj = Tree::instance()->init($childrenList, 'pid')->getTreeArray($v['pid']);
            $objList = array_merge($objList, Tree::instance()->getTreeList($obj));
        }
        $childrenGroupIds = [];
        foreach ($objList as $k => $v) {
            $childrenGroupIds[] = $v['id'];
        }
        if (!$withself) {
            $childrenGroupIds = array_diff($childrenGroupIds, $groupIds);
        }
        return $childrenGroupIds;
    }

    /**
     * 取出当前管理员所拥有权限的管理员
     * @param boolean $withself 是否包含自身
     * @return array
     */
    public function getChildrenAdminIds($withself = false)
    {
        $childrenAdminIds = [];
        if (!$this->isSuperAdmin()) {
            $groupIds = $this->getChildrenGroupIds(false);
            $authGroupList = \app\admin\model\AuthGroupAccess::
            field('uid,group_id')
                ->where('group_id', 'in', $groupIds)
                ->select();
            foreach ($authGroupList as $k => $v) {
                $childrenAdminIds[] = $v['uid'];
            }
        } else {
            //超级管理员拥有所有人的权限
            $childrenAdminIds = Admin::column('id');
        }
        if ($withself) {
            if (!in_array($this->id, $childrenAdminIds)) {
                $childrenAdminIds[] = $this->id;
            }
        } else {
            $childrenAdminIds = array_diff($childrenAdminIds, [$this->id]);
        }
        return $childrenAdminIds;
    }

    /**
     * 获得面包屑导航
     * @param string $path
     * @return array
     */
    public function getBreadCrumb($path = '')
    {
        if ($this->breadcrumb || !$path) {
            return $this->breadcrumb;
        }

        $path = strtolower($path);

        $menuArr = [];
        $urlArr = explode('/', $path);
        foreach ($urlArr as $index => $item) {
            $pathArr[implode('/', array_slice($urlArr, 0, $index + 1))] = $index;
        }


        $allRules = $this->getAllRule();


        foreach ($allRules as $url => $title) {

            if (isset($pathArr[$url])) {
                $temp = [
                    'title'=>__($title),
                    'url'=>tpurl($url)
                ];
                $menuArr[$pathArr[$url]] = $temp;
            }

        }
        ksort($menuArr);
        $this->breadcrumb = $menuArr;
        return $this->breadcrumb;
    }


    /**
     * 设置错误信息
     *
     * @param string $error 错误信息
     * @return Auth
     */
    public function setError($error)
    {
        $this->_error = $error;
        return $this;
    }

    /**
     * 获取错误信息
     * @return string
     */
    public function getError()
    {
        return $this->_error ? __($this->_error) : '';
    }
}