<?php

class Def_MailTools extends ContentController
{


	/**
	 * Replace a "[sitetree_link id=n]" shortcode with a link to the page with the corresponding ID.
	 *
	 * @return string
	 */
	public static function absolute_link_shortcode_handler($arguments, $content = null, $parser = null) {
		if(!isset($arguments['id']) || !is_numeric($arguments['id'])) return;

		if (
			   !($page = DataObject::get_by_id('SiteTree', $arguments['id']))         // Get the current page by ID.
			&& !($page = Versioned::get_latest_version('SiteTree', $arguments['id'])) // Attempt link to old version.
			&& !($page = DataObject::get_one('ErrorPage', '"ErrorCode" = \'404\''))   // Link to 404 page directly.
		) {
			 return; // There were no suitable matches at all.
		}

		if($content) {
			return sprintf('<a href="%s">%s</a>', $page->AbsoluteLink(), $parser->parse($content));
		} else {
			return $page->AbsoluteLink();
		}
	}

	function Build($content)
	{

		// Change internal links ([sitetree_link id=2]) to proper absolute links
		$parser = new ShortcodeParser();
		$parser->register('absolute_link_shortcode_handler', array('Def_MailTools', 'absolute_link_shortcode_handler'));
		$content = $parser->parse($content);

		return $content;
	}


}