<?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/>.
 */

/**
 * Digital Object deletion.
 *
 * @author     David Juhasz <david@artefactual.com>
 */
class DigitalObjectDeleteAction extends sfAction
{
    public function execute($request)
    {
        $this->form = new sfForm();

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

        // Get related object by first grabbing top-level digital object
        $parent = $this->resource->parent;
        if (isset($parent)) {
            $this->object = $parent->object;
        } else {
            $this->object = $this->resource->object;
            if (!isset($this->object)) {
                $this->forward404();
            }
        }

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

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

            if ($this->form->isValid()) {
                // Delete the digital object record from the database
                $this->resource->delete();
                QubitSearch::getInstance()->update($this->object);

                if ($this->object instanceof QubitInformationObject) {
                    $this->object->updateXmlExports();
                }

                // Redirect to edit page for parent Object
                if (isset($parent)) {
                    $this->redirect([$parent, 'module' => 'digitalobject', 'action' => 'edit']);
                } else {
                    if ($this->object instanceof QubitInformationObject) {
                        $this->redirect([$this->object, 'module' => 'informationobject']);
                    } elseif ($this->object instanceof QubitActor) {
                        $this->redirect([$this->object, 'module' => 'actor']);
                    }
                }
            }
        }
    }
}
