<?php

namespace app\admin\controller;

use app\admin\library\SystemLogin;
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', 'cockpitlogin'];
    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, $cookieValue)) {
                // 皮肤由系统风格强制，忽略 cookie 覆盖
                if ($key === 'adminskin') {
                    continue;
                }
                config('fastadmin.' . $key, $cookieValue);
            }
        }
        // 按登录系统再次套用风格（覆盖 cookie）
        $theme = SystemLogin::applyTheme($this->auth);
        $this->view->assign($theme);

        //左侧菜单（不显示 hot/new 等角标）
        list($menulist, $navlist, $fixedmenu, $referermenu) = $this->auth->getSidebar([
        ], $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();
    }

    /**
     * 登录页 login.html：按 mproc.login_page_system 锁定可登录账号与风格
     */
    public function login()
    {
        SystemLogin::loadConfig();
        $systemKey = SystemLogin::normalizeKey((string)Config::get('mproc.login_page_system'));

        return $this->doSystemLogin($systemKey);
    }

    /**
     * 兼容旧链接
     */
    public function cockpitlogin()
    {
        $this->redirect('index/login', $this->request->get(), 302);
    }

    /**
     * @param string $systemKey collab|cockpit
     */
    protected function doSystemLogin(string $systemKey)
    {
        SystemLogin::loadConfig();
        $systemKey = SystemLogin::normalizeKey($systemKey);
        $url = $this->request->get('url', '', 'url_clean');
        $url = $url ?: 'index/index';
        $sysName = (string)SystemLogin::option($systemKey, 'name', '');
        if ($sysName === '') {
            $sysName = $systemKey === 'cockpit' ? '生产经营驾驶舱系统' : '生产协同系统';
        }

        if ($this->auth->isLogin()) {
            if (!SystemLogin::belongsTo($this->auth, (int)$this->auth->id, $systemKey)) {
                $this->auth->logout();
                Session::delete('login_system');
            } else {
                Session::set('login_system', $systemKey);
                $this->success(__("You've logged in, do not login again"), $url);
            }
        }

        //保持会话有效时长，单位:小时（与 config fastadmin.keeplogin_hours 一致）
        $keeyloginhours = (int)Config::get('fastadmin.keeplogin_hours');
        if ($keeyloginhours <= 0) {
            $keeyloginhours = 72;
        }
        if ($this->request->isPost()) {
            $username = $this->request->post('username');
            $password = $this->request->post('password', '', null);
            $token = $this->request->post('__token__');
            $rule = [
                'username'  => 'require|length:3,30',
                'password'  => 'require|length:4,30',
                '__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') . '-' . $sysName);
            // 默认保持登录 72 小时（登录页无「记住我」勾选时也生效，避免频繁掉线）
            $keeptime = $keeyloginhours * 3600;
            $result = $this->auth->login($username, $password, $keeptime);
            if ($result === true) {
                if (!SystemLogin::belongsTo($this->auth, (int)$this->auth->id, $systemKey)) {
                    $this->auth->logout();
                    Session::delete('login_system');
                    $this->error('登录账号不存在', $url, ['token' => $this->request->token()]);
                }
                Session::set('login_system', $systemKey);
                Hook::listen("admin_login_after", $this->request);
                $this->success(__('Login successful'), $url, ['url' => $url, 'id' => $this->auth->id, 'username' => $username, 'avatar' => resolve_admin_avatar($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 ($this->auth->autologin()) {
            if (!SystemLogin::belongsTo($this->auth, (int)$this->auth->id, $systemKey)) {
                $this->auth->logout();
                Session::delete('login_system');
            } else {
                Session::set('login_system', $systemKey);
                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('keeyloginhours', $keeyloginhours);
        $this->view->assign('background', $background);
        $this->view->assign('login_system', $systemKey);
        $this->view->assign('title', $sysName . ' - ' . __('Login'));
        Hook::listen("admin_login_init", $this->request);
        return $this->view->fetch('login');
    }

    /**
     * 退出登录
     */
    public function logout()
    {
        if ($this->request->isPost()) {
            $this->auth->logout();
            Session::delete('login_system');
            Hook::listen("admin_logout_after", $this->request);
            $this->redirect('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;
    }

}