<?php

/*
 * This file is part of the Access to Memory (AtoM) software.
 *
 * Access to Memory (AtoM) is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Access to Memory (AtoM) is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Access to Memory (AtoM).  If not, see <http://www.gnu.org/licenses/>.
 */

class TermDeleteAction extends sfAction
{
    public function execute($request)
    {
        $this->form = new sfForm();

        $this->resource = $this->getRoute()->resource;

        // Check that this isn't the root
        if (!isset($this->resource->parent)) {
            $this->forward404();
        }

        // Don't delete protected terms
        if (QubitTerm::isProtected($this->resource->id)) {
            $this->forward('admin', 'termPermission');
        }

        // Check user authorization
        if (!QubitAcl::check($this->resource, 'delete')) {
            QubitAcl::forwardUnauthorized();
        }

        if ($request->isMethod('delete')) {
            $this->form->bind($request->getPostParameters());

            if ($this->form->isValid()) {
                $this->resource->deleteFullHierarchy();

                if (isset($this->resource->taxonomy)) {
                    $this->redirect([$this->resource->taxonomy, 'module' => 'taxonomy']);
                }

                $this->redirect(['module' => 'taxonomy', 'action' => 'list']);
            }
        }

        // Apparently we can't slice a QubitQuery. `previewSize` is shared with
        // the template so we can break the loop when desired.
        $this->count = ($this->resource->rgt - $this->resource->lft - 1) / 2;
        $this->previewSize = (int) sfConfig::get('app_hits_per_page', 10);
        $this->previewIsLimited = $this->count > $this->previewSize;
    }
}
