<?php
namespace Wbs24\Lib\Cache;

class Helper
{
    protected $cleanDir;

    public function __construct()
    {
        $this->cleanDir = $this->getRootDir().'/bitrix/cache/';
    }
    
    public function getRootDir()
    {
        return realpath(__DIR__.'/../../../../..');
    }

    public function clean($minSpace = 1000000000)
    {
        if ($this->getFreeSpace() < $minSpace) {
            system('rm -rf '.$this->cleanDir);
        }
    }

    public function getFreeSpace($dir = "/")
    {
        return disk_free_space($dir);
    }
}