<?php

/**
 * @file pages/management/PKPToolsHandler.php
 *
 * Copyright (c) 2013-2021 Simon Fraser University
 * Copyright (c) 2003-2021 John Willinsky
 * Distributed under the GNU GPL v3. For full terms see the file docs/COPYING.
 *
 * @class PKPToolsHandler
 *
 * @ingroup pages_management
 *
 * @brief Handle requests for Tool pages.
 */

namespace PKP\pages\management;

use APP\facades\Repo;
use APP\notification\NotificationManager;
use APP\template\TemplateManager;
use PKP\core\JSONMessage;
use PKP\core\PKPRequest;
use PKP\notification\PKPNotification;
use PKP\plugins\ImportExportPlugin;
use PKP\plugins\PluginRegistry;
use PKP\security\Role;

define('IMPORTEXPORT_PLUGIN_CATEGORY', 'importexport');

class PKPToolsHandler extends ManagementHandler
{
    /** @copydoc PKPHandler::_isBackendPage */
    public $_isBackendPage = true;

    /**
     * Constructor.
     */
    public function __construct()
    {
        parent::__construct();
        $this->addRoleAssignment(
            [Role::ROLE_ID_MANAGER, Role::ROLE_ID_SITE_ADMIN],
            ['tools', 'importexport', 'permissions']
        );
    }

    /**
     * Route to other Tools operations
     *
     * @param array $args
     * @param PKPRequest $request
     */
    public function tools($args, $request)
    {
        $path = array_shift($args);
        switch ($path) {
            case '':
            case 'index':
                $this->index($args, $request);
                break;
            case 'permissions':
                $this->permissions($args, $request);
                break;
            case 'resetPermissions':
                $this->resetPermissions($args, $request);
                break;
            default: assert(false);
        }
    }

    /**
     * Display tools index page.
     *
     * @param PKPRequest $request
     * @param array $args
     */
    public function index($args, $request)
    {
        $templateMgr = TemplateManager::getManager($request);
        $this->setupTemplate($request);
        $templateMgr->assign('pageTitle', __('navigation.tools'));
        $templateMgr->display('management/tools/index.tpl');
    }

    /**
     * Import or export data.
     *
     * @param array $args
     * @param PKPRequest $request
     */
    public function importexport($args, $request)
    {
        $this->setupTemplate($request);

        PluginRegistry::loadCategory(IMPORTEXPORT_PLUGIN_CATEGORY);
        $templateMgr = TemplateManager::getManager($request);

        if (array_shift($args) === 'plugin') {
            $pluginName = array_shift($args);
            /** @var ImportExportPlugin */
            $plugin = PluginRegistry::getPlugin(IMPORTEXPORT_PLUGIN_CATEGORY, $pluginName);
            if ($plugin) {
                return $plugin->display($args, $request);
            }
        }
        $templateMgr->assign('plugins', PluginRegistry::getPlugins(IMPORTEXPORT_PLUGIN_CATEGORY));
        return $templateMgr->fetchJson('management/tools/importexport.tpl');
    }

    //
    // Protected methods.
    //
    /**
     * Display the permissions area.
     *
     * @param array $args
     * @param PKPRequest $request
     */
    public function permissions($args, $request)
    {
        $this->setupTemplate($request);

        $templateMgr = TemplateManager::getManager($request);

        return $templateMgr->fetchJson('management/tools/permissions.tpl');
    }

    /**
     * Reset article/monograph permissions
     *
     * @param array $args
     * @param PKPRequest $request
     */
    public function resetPermissions($args, $request)
    {
        if (!$request->checkCSRF()) {
            return new JSONMessage(false);
        }

        $context = $request->getContext();
        if (!$context) {
            return;
        }

        Repo::submission()->resetPermissions($context->getId());

        $user = $request->getUser();
        $notificationManager = new NotificationManager();
        $notificationManager->createTrivialNotification($user->getId(), PKPNotification::NOTIFICATION_TYPE_SUCCESS, ['contents' => __('manager.setup.resetPermissions.success')]);

        // This is an ugly hack to force the PageHandler to return JSON, so this
        // method can communicate properly with the AjaxFormHandler. Returning a
        // JSONMessage, or JSONMessage::toString(), doesn't seem to do it.
        echo json_encode(true);
        exit;
    }
}