<?php
namespace FluidTYPO3\Vhs\ViewHelpers\Resource;

/*
 * This file is part of the FluidTYPO3/Vhs project under GPLv2 or later.
 *
 * For the full copyright and license information, please read the
 * LICENSE.md file that was distributed with this source code.
 */

use FluidTYPO3\Vhs\Traits\TemplateVariableViewHelperTrait;

/**
 * ViewHelper to output or assign FAL sys_file records
 *
 * @author Danilo Bürger <danilo.buerger@hmspl.de>, Heimspiel GmbH
 * @package Vhs
 * @subpackage ViewHelpers\Resource
 */
class FileViewHelper extends AbstractResourceViewHelper {

	use TemplateVariableViewHelperTrait;

	/**
	 * Initialize arguments.
	 *
	 * @return void
	 * @api
	 */
	public function initializeArguments() {
		parent::initializeArguments();
		$this->registerAsArgument();
	}

	/**
	 * @return mixed
	 */
	public function render() {
		$files = $this->getFiles(TRUE);
		if (1 === count($files)) {
			$files = array_shift($files);
		}
		return $this->renderChildrenWithVariableOrReturnInput($files);
	}

}