<?php

declare(strict_types=1);

/*
 * This file is part of the TYPO3 CMS project.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 *
 * The TYPO3 project - inspiring people to share!
 */

namespace TYPO3\CMS\Scheduler\Service;

use TYPO3\CMS\Core\Localization\LanguageService;

/**
 * Service class helping to retrieve data for EXT:scheduler
 * @internal This is not a public API method, do not use in own extensions
 */
class TaskService
{
    /**
     * This method fetches a list of all classes that have been registered with the Scheduler
     * For each item the following information is provided, as an associative array:
     *
     * ['extension'] => Key of the extension which provides the class
     * ['filename'] => Path to the file containing the class
     * ['title'] => String (possibly localized) containing a human-readable name for the class
     * ['provider'] => Name of class that implements the interface for additional fields, if necessary
     *
     * The name of the class itself is used as the key of the list array
     */
    public function getAvailableTaskTypes(): array
    {
        $languageService = $this->getLanguageService();
        $list = [];
        foreach ($GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['scheduler']['tasks'] ?? [] as $class => $registrationInformation) {
            $title = isset($registrationInformation['title']) ? $languageService->sL($registrationInformation['title']) : '';
            $description = isset($registrationInformation['description']) ? $languageService->sL($registrationInformation['description']) : '';
            $list[$class] = [
                'extension' => $registrationInformation['extension'],
                'title' => $title,
                'description' => $description,
                'provider' => $registrationInformation['additionalFields'] ?? '',
            ];
        }
        return $list;
    }

    private function getLanguageService(): LanguageService
    {
        return $GLOBALS['LANG'];
    }
}