<?php

/*

 * This file is part of the Symfony package.

 *

 * (c) Fabien Potencier <fabien@symfony.com>

 *

 * For the full copyright and license information, please view the LICENSE

 * file that was distributed with this source code.

 */

namespace Symfony\Component\Templating\Asset;

/**

 * The basic package will add a version to asset URLs.

 *

 * @author Kris Wallsmith <kris@symfony.com>

 */

class Package implements PackageInterface

{

    private $version;

    private $format;

    /**

     * Constructor.

     *

     * @param string $version The package version

     * @param string $format  The format used to apply the version

     */

    public function __construct($version = null, $format = null)

    {

        $this->version = $version;

        $this->format = $format ?: '%s?%s';

    }

    public function getVersion()

    {

        return $this->version;

    }

    public function getUrl($path)

    {

        if (false !== strpos($path, '://') || 0 === strpos($path, '//')) {

            return $path;

        }

        return $this->applyVersion($path);

    }

    /**

     * Applies version to the supplied path.

     *

     * @param string $path A path

     *

     * @return string The versionized path

     */

    protected function applyVersion($path)

    {

        if (null === $this->version) {

            return $path;

        }

        $versionized = sprintf($this->format, ltrim($path, '/'), $this->version);

        if ($path && '/' == $path[0]) {

            $versionized = '/'.$versionized;

        }

        return $versionized;

    }

}