<?php

namespace Doctrine\Common\Cache;

use Symfony\Component\Cache\Adapter\FilesystemAdapter;

/**
 * Filesystem cache driver (backwards compatibility).
 */
class FilesystemCache extends CacheProvider
{
    public const EXTENSION = '.doctrinecache.data';

    /** @var FilesystemAdapter */
    private $pool;

    /**
     * {@inheritdoc}
     */
    public function __construct($directory, $extension = self::EXTENSION, $umask = 0002)
    {
        user_error(__CLASS__ . ' is deprecated since Grav 1.8, use Symfony cache instead', E_USER_DEPRECATED);

        $this->pool = new FilesystemAdapter('', 0, $directory);
    }

    /**
     * {@inheritdoc}
     */
    protected function doFetch($id)
    {
        $item = $this->pool->getItem(rawurlencode($id));

        return $item->isHit() ? $item->get() : false;
    }

    /**
     * {@inheritdoc}
     *
     * @return bool
     */
    protected function doContains($id)
    {
        return $this->pool->hasItem(rawurlencode($id));
    }

    /**
     * {@inheritdoc}
     *
     * @return bool
     */
    protected function doSave($id, $data, $lifeTime = 0)
    {
        $item = $this->pool->getItem(rawurlencode($id));

        if (0 < $lifeTime) {
            $item->expiresAfter($lifeTime);
        }

        return $this->pool->save($item->set($data));
    }

    /**
     * {@inheritdoc}
     *
     * @return bool
     */
    protected function doDelete($id)
    {
        return $this->pool->deleteItem(rawurlencode($id));
    }

    /**
     * {@inheritdoc}
     *
     * @return bool
     */
    protected function doFlush()
    {
        return $this->pool->clear();
    }

    /**
     * {@inheritdoc}
     *
     * @return array|null
     */
    protected function doGetStats()
    {
        return null;
    }

}