<?php

namespace app\admin\controller;

use app\admin\model\AdminLog;
use app\common\controller\Backend;
use think\Config;
use think\Hook;
use think\Session;
use think\Validate;

/**
 * 后台首页
 * @internal
 */
class Index extends Backend
{

 protected $noNeedLogin = ['login'];
 protected $noNeedRight = ['index', 'logout'];
 protected $layout = '';

 public function _initialize()
 {
 parent::_initialize();
 //移除HTML标签
 $this->request->filter('trim,strip_tags,htmlspecialchars');
 }

 /**
 * 后台首页
 */
 public function index()
 {
 $cookieArr = ['adminskin' => "/^skin\-([a-z\-]+)\$/i", 'multiplenav' => "/^(0|1)\$/", 'multipletab' => "/^(0|1)\$/", 'show_submenu' => "/^(0|1)\$/"];
 foreach ($cookieArr as $key => $regex) {
 $cookieValue = $this->request->cookie($key);
 if (!is_null($cookieValue) && preg_match($regex, $cookieValue)) {
 config('fastadmin.' . $key, $cookieValue);
 }
 }
 //左侧菜单
 list($menulist, $navlist, $fixedmenu, $referermenu) = $this->auth->getSidebar([
 'dashboard' => 'hot',
 'addon' => ['new', 'red', 'badge'],
 'auth/rule' => __('Menu'),
 'general' => ['new', 'purple'],
 ], $this->view->site['fixedpage']);
 $action = $this->request->request('action');
 if ($this->request->isPost()) {
 if ($action == 'refreshmenu') {
 $this->success('', null, ['menulist' => $menulist, 'navlist' => $navlist]);
 }
 }
 $this->assignconfig('cookie', ['prefix' => config('cookie.prefix')]);
 $this->view->assign('menulist', $menulist);
 $this->view->assign('navlist', $navlist);
 $this->view->assign('fixedmenu', $fixedmenu);
 $this->view->assign('referermenu', $referermenu);
 $this->view->assign('title', __('Home'));
 return $this->view->fetch();
 }

 /**
 * 管理员登录
 */
 public function login()
 {
 $url = $this->request->get('url', 'index/index');
 if ($this->auth->isLogin()) {
 $this->success(__("You've logged in, do not login again"), $url);
 }
 if ($this->request->isPost()) {
 $username = $this->request->post('username');
 $password = $this->request->post('password');
 $keeplogin = $this->request->post('keeplogin');
 $token = $this->request->post('__token__');
 $rule = [
 'username' => 'require|length:3,30',
 'password' => 'require|length:3,30',
 '__token__' => 'require|token',
 ];
 $data = [
 'username' => $username,
 'password' => $password,
 '__token__' => $token,
 ];
 if (Config::get('fastadmin.login_captcha')) {
 $rule['captcha'] = 'require|captcha';
 $data['captcha'] = $this->request->post('captcha');
 }
 $validate = new Validate($rule, [], ['username' => __('Username'), 'password' => __('Password'), 'captcha' => __('Captcha')]);
 $result = $validate->check($data);
 if (!$result) {
 $this->error($validate->getError(), $url, ['token' => $this->request->token()]);
 }
 AdminLog::setTitle(__('Login'));
 $result = $this->auth->login($username, $password, $keeplogin ? 86400 : 0);
 if ($result === true) {
 Hook::listen("admin_login_after", $this->request);
 $this->success(__('Login successful'), $url, ['url' => $url, 'id' => $this->auth->id, 'username' => $username, 'avatar' => $this->auth->avatar]);
 } else {
 $msg = $this->auth->getError();
 $msg = $msg ? $msg : __('Username or password is incorrect');
 $this->error($msg, $url, ['token' => $this->request->token()]);
 }
 }

 // 根据客户端的cookie,判断是否可以自动登录
 if ($this->auth->autologin()) {
 Session::delete("referer");
 $this->redirect($url);
 }
 $background = Config::get('fastadmin.login_background');
 $background = $background ? (stripos($background, 'http') === 0 ? $background : config('site.cdnurl') . $background) : '';
 $this->view->assign('background', $background);
 $this->view->assign('title', __('Login'));
 Hook::listen("admin_login_init", $this->request);
 return $this->view->fetch();
 }

 /**
 * 退出登录
 */
 public function logout()
 {
 if ($this->request->isPost()) {
 $this->auth->logout();
 Hook::listen("admin_logout_after", $this->request);
 $this->success(__('Logout successful'), 'index/login');
 }
 $html = "<form id='logout_submit' name='logout_submit' action='' method='post'>" . token() . "<input type='submit' value='ok' style='display:none;'></form>";
 $html .= "<script>document.forms['logout_submit'].submit();</script>";

 return $html;
 }

}