<?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 URL packages adds a version and a base URL to asset URLs.

 *

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

 */

class UrlPackage extends Package

{

    private $baseUrls;

    /**

     * Constructor.

     *

     * @param string|array $baseUrls Base asset URLs

     * @param string       $version  The package version

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

     */

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

    {

        parent::__construct($version, $format);

        if (!is_array($baseUrls)) {

            $baseUrls = (array) $baseUrls;

        }

        $this->baseUrls = array();

        foreach ($baseUrls as $baseUrl) {

            $this->baseUrls[] = rtrim($baseUrl, '/');

        }

    }

    public function getUrl($path)

    {

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

            return $path;

        }

        $url = $this->applyVersion($path);

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

            $url = '/'.$url;

        }

        return $this->getBaseUrl($path).$url;

    }

    /**

     * Returns the base URL for a path.

     *

     * @return string The base URL

     */

    public function getBaseUrl($path)

    {

        switch ($count = count($this->baseUrls)) {

            case 0:

                return '';

            case 1:

                return $this->baseUrls[0];

            default:

                return $this->baseUrls[fmod(hexdec(substr(md5($path), 0, 10)), $count)];

        }

    }

}