<?php

namespace app\admin\controller\general;

use app\common\controller\Backend;
use app\common\model\Attachment;
use think\Db;

/**
 * 系统监控与运维概况
 *
 * @icon   fa fa-server
 * @remark 用于展示服务器软硬件环境、数据库状态、系统资源占用及开发扩展统计
 */
class System extends Backend
{

    public function index()
    {
        try {
            Db::execute("SET @@sql_mode='';");
        } catch (\Exception $e) {

        }

        // 数据库状态
        $dbTableList = Db::query("SHOW TABLE STATUS");
        $dbsize = array_sum(array_map(function ($item) {
            return $item['Data_length'] + $item['Index_length'];
        }, $dbTableList));

        // 插件统计
        $addonList = get_addon_list();
        $totalworkingaddon = 0;
        $totaladdon = count($addonList);
        foreach ($addonList as $item) {
            if (!empty($item['state'])) {
                $totalworkingaddon += 1;
            }
        }

        // 附件统计
        $attachmentnums = Attachment::count();
        $attachmentsize = Attachment::sum('filesize');
        $picturenums = Attachment::where('mimetype', 'like', 'image/%')->count();
        $picturesize = Attachment::where('mimetype', 'like', 'image/%')->sum('filesize');

        // 服务器与运行环境信息
        $serverInfo = [
            'os'             => PHP_OS . ' (' . php_uname('r') . ')',
            'php_version'    => PHP_VERSION,
            'sapi'           => php_sapi_name(),
            'server_soft'    => $_SERVER['SERVER_SOFTWARE'] ?? 'Nginx / PHP',
            'upload_max'     => ini_get('upload_max_filesize'),
            'post_max'       => ini_get('post_max_size'),
            'max_exec_time'  => ini_get('max_execution_time') . 's',
            'memory_limit'   => ini_get('memory_limit'),
            'mysql_version'  => Db::query("SELECT VERSION() as v")[0]['v'] ?? '5.7',
            'server_time'    => date('Y-m-d H:i:s'),
            'timezone'       => date_default_timezone_get(),
        ];

        $this->view->assign([
            'dbtablenums'       => count($dbTableList),
            'dbsize'            => $dbsize,
            'totaladdon'        => $totaladdon,
            'totalworkingaddon' => $totalworkingaddon,
            'attachmentnums'    => $attachmentnums,
            'attachmentsize'    => $attachmentsize,
            'picturenums'       => $picturenums,
            'picturesize'       => $picturesize,
            'serverInfo'        => $serverInfo,
        ]);

        return $this->view->fetch();
    }
}