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<?php

/**
 * @file controllers/grid/issues/IssueGridHandler.php
 *
 * Copyright (c) 2014-2021 Simon Fraser University
 * Copyright (c) 2000-2021 John Willinsky
 * Distributed under the GNU GPL v3. For full terms see the file docs/COPYING.
 *
 * @class BackIssueGridHandler
 *
 * @ingroup controllers_grid_issues
 *
 * @brief Handle issues grid requests.
 */

namespace APP\controllers\grid\issues;

use APP\facades\Repo;
use APP\issue\Collector;
use PKP\controllers\grid\feature\OrderGridItemsFeature;
use PKP\controllers\grid\GridColumn;
use PKP\security\Role;

class BackIssueGridHandler extends IssueGridHandler
{
    /**
     * Constructor
     */
    public function __construct()
    {
        parent::__construct();
        $this->addRoleAssignment(
            [Role::ROLE_ID_MANAGER, Role::ROLE_ID_SITE_ADMIN],
            ['saveSequence']
        );
    }


    //
    // Implement template methods from PKPHandler
    //
    /**
     * @copydoc IssueGridHandler::initialize()
     *
     * @param null|mixed $args
     */
    public function initialize($request, $args = null)
    {
        parent::initialize($request, $args);

        // Basic grid configuration.
        $this->setTitle('editor.issues.backIssues');
    }

    /**
     * Private function to add central columns to the grid.
     *
     * @param IssueGridCellProvider $issueGridCellProvider
     */
    protected function _addCenterColumns($issueGridCellProvider)
    {
        // Published state
        $this->addColumn(
            new GridColumn(
                'published',
                'editor.issues.published',
                null,
                null,
                $issueGridCellProvider
            )
        );
    }

    /**
     * @copydoc GridHandler::setDataElementSequence()
     */
    public function setDataElementSequence($request, $rowId, $gridDataElement, $newSequence)
    {
        Repo::issue()->dao->moveCustomIssueOrder($gridDataElement->getJournalId(), $gridDataElement->getId(), $newSequence);
    }

    /**
     * @copydoc GridHandler::getDataElementSequence()
     */
    public function getDataElementSequence($gridDataElement)
    {
        $customOrder = Repo::issue()->dao->getCustomIssueOrder($gridDataElement->getJournalId(), $gridDataElement->getId());
        if ($customOrder !== null) {
            return $customOrder;
        }

        $currentIssue = Repo::issue()->getCurrent($gridDataElement->getJournalId());
        if ($currentIssue != null && $gridDataElement->getId() == $currentIssue->getId()) {
            return 0;
        }
        return $gridDataElement->getDatePublished();
    }

    /**
     * @copydoc GridHandler::addFeatures()
     */
    public function initFeatures($request, $args)
    {
        return [new OrderGridItemsFeature()];
    }

    /**
     * @copydoc GridHandler::loadData()
     */
    protected function loadData($request, $filter)
    {
        $journal = $request->getJournal();
        return Repo::issue()->getCollector()
            ->filterByContextIds([$journal->getId()])
            ->filterByPublished(true)
            ->orderBy(Collector::ORDERBY_PUBLISHED_ISSUES)
            ->getMany()
            ->toArray();
    }

    /**
     * Get the js handler for this component.
     *
     * @return string
     */
    public function getJSHandler()
    {
        return '$.pkp.controllers.grid.issues.BackIssueGridHandler';
    }
}