<?php

class App_Wizard_Cache
{
    protected static $cache;

    public static function get($name)
    {
        return self::getCache()->load($name);
    }

    public static function set($name, $data)
    {
        return self::getCache()->save($data, $name);
    }

    protected static function getCache()
    {
        if (null === self::$cache) {
            self::$cache = Qs_Cache::factory('Core', 'File', ['automatic_serialization' => true]);

            $cacheDir = constant('BASE_PATH') . '/tmp/result-cache/';
            if (!is_dir($cacheDir)) {
                if (false === mkdir($cacheDir, 0777, true) || !is_writable($cacheDir)) {
                    throw new \Exception('Cache directory does not exists or is not writable');
                }
            }
            self::$cache->getBackend()->setOption('cache_dir', $cacheDir);
        }
        return self::$cache;
    }
}