<?php

/**
 * @author Sebastian Langer <sl@scn.cx>
 * @license MIT
 */

use Shopware\Bundle\StoreFrontBundle\Service\Core\ContextService;
use Shopware\Bundle\StoreFrontBundle\Gateway\DBAL\MediaGateway;
use Shopware\Components\Compatibility\LegacyStructConverter;
use Enlight_Template_Default;
use InvalidArgumentException;

/**
 * Get the legacy media struct of the media-object by its id.
 * Returns null if not found.
 *
 * @param array $params
 * @param $template
 * @throws InvalidArgumentException
 */
function smarty_function_legacyMediaById(array $params, Enlight_Template_Default $template)
{
    /** @var ContextService $contextService */
    $contextService = Shopware()->Container()->get('shopware_storefront.context_service');
    /** @var MediaGateway $mediaGateway */
    $mediaGateway = Shopware()->Container()->get('shopware_storefront.media_gateway');
    /** @var LegacyStructConverter $legacyStructConverter */
    $legacyStructConverter = Shopware()->Container()->get('legacy_struct_converter');

    if (!array_key_exists('id', $params) || !array_key_exists('assign', $params)) {
        throw new InvalidArgumentException('Arguments id and assign must be given.');
    }

    $id = $params['id'];
    $assign = $params['assign'];

    $context = $contextService->getContext();
    $mediaStruct = $mediaGateway->get($id, $context);
    $legacyMedia = $legacyStructConverter->convertMediaStruct($mediaStruct);

    if (!is_array($legacyMedia)) {
        $template->assign($assign, null);
    } else {
        $template->assign($assign, $legacyMedia);
    }
}