<?php
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// +----------------------------------------------------------------------
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// +----------------------------------------------------------------------
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// +----------------------------------------------------------------------
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// +----------------------------------------------------------------------

// +----------------------------------------------------------------------
// | 后台首页
// +----------------------------------------------------------------------
namespace app\admin\controller;

use app\admin\model\Adminlog;
use app\common\controller\Backend;
use think\addons\Service;
use think\exception\ValidateException;
use think\facade\Cache;
use think\facade\Db;
use think\facade\Env;
use think\facade\Event;
use think\facade\Session;
use util\File;

class Index extends Backend
{
    protected $noNeedLogin = ['login', 'captcha'];
    protected $noNeedRight = ['index', 'cache', 'logout', 'captcha'];

    //初始化
    protected function initialize()
    {
        parent::initialize();
        //移除HTML标签
        $this->request->filter('trim,strip_tags,htmlspecialchars');
    }

    //后台首页
    public function index()
    {
        if ($this->request->isPost()) {
            return json($this->auth->getSidebar([
                'auth.rule' => '菜单',
                'addon'     => ['new', 'red'],
            ]));
        }
        $this->assign('title', 'YZNCMS后台管理系统');
        return $this->fetch();
    }

    //登录判断
    public function login()
    {
        $url = $this->request->get('url', '', 'url_clean');
        $url = $url && !preg_match('/\/index\/(login|logout)$/', $url) ? $url : 'index/index';
        if ($this->auth->isLogin()) {
            $this->success("你已经登录，无需重复登录", $url);
        }
        //保持会话有效时长，单位:小时
        $keeyloginhours = 24;
        if ($this->request->isPost()) {
            $data      = $this->request->post();
            $keeplogin = $this->request->post('keeplogin');
            $rule      = [
                'verify|验证码'   => 'require|captcha',
                'username|用户名' => 'require|alphaDash|length:3,30',
                'password|密码'  => 'require|length:6,30',
                '__token__'    => 'require|token',
            ];
            Adminlog::setTitle('登录');
            try {
                $this->validate($data, $rule);
            } catch (ValidateException $e) {
                // 验证失败 输出错误信息
                $this->error($e->getError(), $url, ['token' => $this->request->buildToken()]);
            }
            if ($this->auth->login($data['username'], $data['password'], $keeplogin ? $keeyloginhours * 3600 : 0)) {
                Event::trigger("admin_login_after", $this->request);
                $this->success('恭喜您，登陆成功', $url);
            } else {
                $msg = $this->auth->getError();
                $msg = $msg ?: '用户名或者密码错误!';
                $this->error($msg, $url, ['token' => $this->request->buildToken()]);
            }
        }
        if ($this->auth->autologin()) {
            Session::delete("referer");
            $this->redirect($url);
        }
        Event::trigger("admin_login_init", $this->request);
        $this->assign('keeyloginhours', $keeyloginhours);
        $this->assign('title', '登录');
        return $this->fetch();
    }

    //手动退出登录
    public function logout()
    {
        if ($this->auth->logout()) {
            Event::trigger("admin_logout_after", $this->request);
            $this->success('注销成功！', url("admin/index/login"));
        }
    }

    //缓存更新
    public function cache()
    {
        $runtimePath = app()->getRootPath() . 'runtime' . DS;
        try {
            $type = $this->request->request("type");
            switch ($type) {
                case 'all':
                case 'data':
                    File::del_dir($runtimePath . 'cache');
                    Cache::clear();
                    if ($type == 'data') {
                        break;
                    }
                case 'template':
                    // 模板缓存
                    File::del_dir($runtimePath . 'admin' . DS . 'temp'); //后台
                    File::del_dir($runtimePath . 'index' . DS . 'temp'); //前台
                    File::del_dir($runtimePath . 'temp');
                    if ($type == 'template') {
                        break;
                    }
                case 'addons':
                    // 插件缓存
                    Service::refresh();
                    if ($type == 'addons') {
                        break;
                    }
                case 'browser':
                    // 浏览器缓存
                    // 只有生产环境下才修改
                    if (!Env::get('APP_DEBUG')) {
                        $version    = config('site.version');
                        $newversion = preg_replace_callback("/(.*)\.([0-9]+)\$/", function ($match) {
                            return $match[1] . '.' . ($match[2] + 1);
                        }, $version);
                        if ($newversion && $newversion != $version) {
                            Db::startTrans();
                            try {
                                \app\common\model\Config::where('name', 'version')->update(['value' => $newversion]);
                                \app\common\model\Config::refreshFile();
                                Db::commit();
                            } catch (\Exception $e) {
                                Db::rollback();
                                throw new \Exception($e->getMessage());
                            }
                        }
                    }
                    if ($type == 'browser') {
                        break;
                    }
            }
        } catch (\Exception $e) {
            $this->error($e->getMessage());
        }
        Event::trigger("wipecache_after");
        $this->success('清理缓存');
    }

    //验证码
    public function captcha()
    {
        return \think\captcha\facade\Captcha::create();
    }
}