<?php
use League\CommonMark\GithubFlavoredMarkdownConverter;

/**
 * @category   Anahita
 *
 * @author     Arash Sanieyan <ash@anahitapolis.com>
 * @author     Rastin Mehr <rastin@anahita.io>
 * @copyright  2008 - 2010 rmdStudio Inc./Peerglobe Technology Inc
 * @license    GNU GPLv3 <http://www.gnu.org/licenses/gpl-3.0.html>
 *
 * @link       http://www.Anahita.io
 */
class LibBaseTemplateHelperHtml extends LibBaseTemplateHelperAbstract implements AnServiceInstantiatable
{
    /**
     * Force creation of a singleton.
     *
     * @param AnConfigInterface  $config    An optional AnConfig object with configuration options
     * @param AnServiceInterface $container A AnServiceInterface object
     *
     * @return AnServiceInstantiatable
     */
    public static function getInstance(AnConfigInterface $config, AnServiceInterface $container)
    {
        if (! $container->has($config->service_identifier)) {
            $classname = $config->service_identifier->classname;
            $instance = new $classname($config);
            $container->set($config->service_identifier, $instance);
        }

        return $container->get($config->service_identifier);
    }

    /**
     * converts markdown to safe html
     * 
     * @param string markdown
     * 
     * @return string html
     */
    public function markdownToHtml(string $text) {
        $converter = new GithubFlavoredMarkdownConverter([
            'html_input' => 'strip',
            'allow_unsafe_links' => false,
        ]);

        return $converter->convert($text);
    }
}
