<?php

namespace oat\tao\model\Tree;

use common_exception_IsAjaxAction;
use oat\oatbox\service\ConfigurableService;
use oat\tao\model\GenerisTreeFactory;
use tao_helpers_Request;

class GetTreeService extends ConfigurableService
{
    const SERVICE_ID = 'tao/GetTree';

    /**
     * @param GetTreeRequest $request
     * @return TreeWrapper
     *
     * @throws common_exception_IsAjaxAction
     */
    public function handle(GetTreeRequest $request)
    {
        if (!tao_helpers_Request::isAjax()) {
            throw new common_exception_IsAjaxAction(__FUNCTION__);
        }

        $factory = new GenerisTreeFactory(
            $request->isShowInstance(),
            $request->getOpenNodes(),
            $request->getLimit(),
            $request->getOffset(),
            $request->getResourceUrisToShow(),
            $request->getFilters(),
            $request->getFiltersOptions(),
            []
        );

        $treeWrapper = new TreeWrapper($factory->buildTree($request->getClass()));

        if ($request->isHideNode()) {
            $treeWrapper = $treeWrapper->getDefaultChildren();
        }

        return $treeWrapper;
    }
}