PlaintextRenderer.php

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<?php
declare(strict_types = 1);
namespace TYPO3\CMS\Core\Messaging\Renderer;

/*
 * 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!
 */

use TYPO3\CMS\Core\Messaging\FlashMessage;

class PlaintextRenderer implements FlashMessageRendererInterface
{
    protected static $type = [
        FlashMessage::NOTICE => 'NOTICE',
        FlashMessage::INFO => 'INFO',
        FlashMessage::OK => 'SUCCESS',
        FlashMessage::WARNING => 'WARNING',
        FlashMessage::ERROR => 'DANGER'
    ];

    public function render(array $flashMessages): string
    {
        $messages = [];

        foreach ($flashMessages as $flashMessage) {
            $message = $flashMessage->getMessage();
            if ($flashMessage->getTitle() !== '') {
                $message = $flashMessage->getTitle() . ': ' . $message;
            }
            $messages[] = '[' . self::$type[$flashMessage->getSeverity()] . '] ' . $message;
        }
        return implode(LF, $messages);
    }
}