<?php
/**
 *
 * (c) Copyright Ascensio System SIA 2026
 *
 * This program is a free software product.
 * You can redistribute it and/or modify it under the terms of the GNU Affero General Public License
 * (AGPL) version 3 as published by the Free Software Foundation.
 * In accordance with Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect
 * that Ascensio System SIA expressly excludes the warranty of non-infringement of any third-party rights.
 *
 * This program is distributed WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * For details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
 *
 * You can contact Ascensio System SIA at 20A-12 Ernesta Birznieka-Upisha street, Riga, Latvia, EU, LV-1050.
 *
 * The interactive user interfaces in modified source and object code versions of the Program
 * must display Appropriate Legal Notices, as required under Section 5 of the GNU AGPL version 3.
 *
 * Pursuant to Section 7(b) of the License you must retain the original Product logo when distributing the program.
 * Pursuant to Section 7(e) we decline to grant you any rights under trademark law for use of our trademarks.
 *
 * All the Product's GUI elements, including illustrations and icon sets, as well as technical
 * writing content are licensed under the terms of the Creative Commons Attribution-ShareAlike 4.0 International.
 * See the License terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
 *
 */

namespace OCA\Onlyoffice;

use Exception;
use OCP\Mail\Provider\Address;
use OCP\Mail\Provider\Attachment;
use OCP\Mail\Provider\IManager;

class MailMergeService {

    /**
     * @param \OCP\Mail\Provider\IManager $mailManager
     */
    public function __construct(
        private IManager $mailManager,
    ) {}

    /**
     * Send MailMerge message
     * @param string $uid
     * @param \OCA\Onlyoffice\MailMergeMessage $mailMergeMessage
     * @throws \Exception
     */
    public function send(string $uid, MailMergeMessage $mailMergeMessage): void {
        $mailService = $this->mailManager->findServiceByAddress($uid, $mailMergeMessage->getFrom());

        if ($mailService === null || !$mailService->capable('MessageSend')) {
            throw new Exception("MailMerge error: $uid with {$mailMergeMessage->getFrom()} address cannot send messages");
        }

        $fromAddress = new Address($mailMergeMessage->getFrom());
        $toAddress = new Address($mailMergeMessage->getTo());

        $message = $mailService->initiateMessage();
        $message->setFrom($fromAddress)
            ->setTo($toAddress)
            ->setSubject($mailMergeMessage->getSubject())
            ->setBodyHtml($mailMergeMessage->getBodyHtml())
            ->setBodyPlain($mailMergeMessage->getBodyPlain());

        if ($mailMergeMessage->hasAttachment()) {
            $attachment = new Attachment(
                $mailMergeMessage->getAttachment()->getContent(),
                $mailMergeMessage->getAttachment()->getName(),
                $mailMergeMessage->getAttachment()->getExtension()
            );
            $message->setAttachments($attachment);
        }

        $mailService->sendMessage($message);
    }
}