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<?php
/**
 * ownCloud - News
 *
 * This file is licensed under the Affero General Public License version 3 or
 * later. See the COPYING file.
 *
 * @author Alessandro Cosentino <cosenal@gmail.com>
 * @author Bernhard Posselt <dev@bernhard-posselt.com>
 * @copyright Alessandro Cosentino 2012
 * @copyright Bernhard Posselt 2012, 2014
 */

namespace OCA\News\Fetcher;


class Fetcher {

    private $fetchers;

    public function __construct(){
        $this->fetchers = [];
    }


    /**
     * Add an additional fetcher
     * @param IFeedFetcher $fetcher the fetcher
     */
    public function registerFetcher(IFeedFetcher $fetcher){
        $this->fetchers[] = $fetcher;
    }

    /**
     * Fetch a feed from remote
     * @param string $url remote url of the feed
     * @param boolean $getFavicon if the favicon should also be fetched, defaults
     * to true
     * @throws FetcherException if simple pie fails
     * @return array an array containing the new feed and its items, first
     * element being the Feed and second element being an array of Items
     */
    public function fetch($url, $getFavicon=true){
        foreach($this->fetchers as $fetcher){
            if($fetcher->canHandle($url)){
                return $fetcher->fetch($url, $getFavicon);
            }
        }

        return [null, []];
    }


}