<?php

namespace models;

use mt;
use phpcommon\SqlHelper;

class RealtimeData extends BaseModel {

    private  static $onlineNum = null;
    private  static $serverDays = null;
    //获取在线人数
    public static function getOnline()
    {
        if (is_null(self::$onlineNum)){
            $db = self::internalGet('online_num');
            self::$onlineNum = max(1, $db ? $db['value1']: 0);
        }
       return  self::$onlineNum;
    }

    //获取服务器自然天数
    public static function getServerDays()
    {
        if (is_null(self::$serverDays)){
            $row = self::internalGet('open_service_time');
            if ($row) {
                $nowDaySeconds = myself()->_getNowDaySeconds();
                $openDaySeconds = myself()->_getDaySeconds($row['value1']);
                $passDays = ($nowDaySeconds - $openDaySeconds) / 3600 / 24;
                self::$serverDays = 1 + max($passDays, 0);
            } else {
                self::$serverDays = 1;
            }
        }
        return  self::$serverDays;
    }

    private static function internalGet($name)
    {
        $row = SqlHelper::ormSelectOne
             (myself()->_getMysql(''),
                 't_realtime_data',
                 array(
                     'name' => $name
                 )
                );
        return $row ? $row : '';
    }

}