<?php
/************************************************************************
 * This file is part of EspoCRM.
 *
 * EspoCRM – Open Source CRM application.
 * Copyright (C) 2014-2025 EspoCRM, Inc.
 * Website: https://www.espocrm.com
 *
 * This program 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.
 *
 * This program 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <https://www.gnu.org/licenses/>.
 *
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU Affero General Public License version 3.
 *
 * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
 * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
 ************************************************************************/

namespace Espo\Core\Mail;

use Espo\Core\Mail\Message\Part;

interface Message
{
    /**
     * Whether has a specific header.
     */
    public function hasHeader(string $name): bool;

    /**
     * Get a specific header.
     */
    public function getHeader(string $attribute): ?string;

    /**
     * Get a raw header part.
     */
    public function getRawHeader(): string;

    /**
     * Get a raw content part.
     */
    public function getRawContent(): string;

    /**
     * Get a full raw message.
     */
    public function getFullRawContent(): string;

    /**
     * Get flags.
     *
     * @return string[]
     */
    public function getFlags(): array;

    /**
     * Whether contents is fetched.
     */
    public function isFetched(): bool;

    /**
     * @return Part[]
     */
    public function getPartList(): array;
}