<?php
/**
 *
 * (c) Copyright Ascensio System SIA 2025
 *
 * 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\Controller;

use OCA\Onlyoffice\AppConfig;
use OCA\Onlyoffice\DocumentService;
use OCA\Onlyoffice\FileUtility;
use OCA\Onlyoffice\KeyManager;
use OCA\Onlyoffice\RemoteInstance;
use OCP\AppFramework\Http\DataResponse;
use OCP\AppFramework\Http\Attribute\NoAdminRequired;
use OCP\AppFramework\Http\Attribute\NoCSRFRequired;
use OCP\AppFramework\Http\Attribute\PublicPage;
use OCP\AppFramework\OCSController;
use OCP\IL10N;
use OCP\IRequest;
use OCP\ISession;
use OCP\Share\IManager;
use Psr\Log\LoggerInterface;

/**
 * OCS handler
 */
class FederationController extends OCSController {

    /**
     * Logger
     *
     * @var LoggerInterface
     */
    private $logger;

    /**
     * Application configuration
     *
     * @var AppConfig
     */
    public $config;

    /**
     * File utility
     *
     * @var FileUtility
     */
    private $fileUtility;

    /**
     * @param string $AppName - application name
     * @param IRequest $request - request object
     * @param IL10N $trans - l10n service
     * @param LoggerInterface $logger - logger
     * @param IManager $shareManager - Share manager
     * @param IManager $ISession - Session
     */
    public function __construct(
        $AppName,
        IRequest $request,
        IL10N $trans,
        LoggerInterface $logger,
        IManager $shareManager,
        ISession $session
    ) {
        parent::__construct($AppName, $request);

        $this->logger = $logger;

        $this->config = \OCP\Server::get(AppConfig::class);
        $this->fileUtility = new FileUtility($AppName, $trans, $logger, $this->config, $shareManager, $session);
    }

    /**
     * Returns the origin document key for editor
     *
     * @param string $shareToken - access token
     * @param string $path - file path
     *
     * @return DataResponse
     */
    #[NoAdminRequired]
    #[NoCSRFRequired]
    #[PublicPage]
    public function key($shareToken, $path) {
        list($file, $error, $share) = $this->fileUtility->getFileByToken(null, $shareToken, $path);

        if (isset($error)) {
            $this->logger->error("Federated getFileByToken: $error");
            return new DataResponse(["error" => $error]);
        }

        $key = $this->fileUtility->getKey($file, true);

        $key = DocumentService::generateRevisionId($key);

        $this->logger->debug("Federated request get for " . $file->getId() . " key $key");

        return new DataResponse(["key" => $key]);
    }

    /**
     * Lock the origin document key for editor
     *
     * @param string $shareToken - access token
     * @param string $path - file path
     * @param bool $lock - status
     * @param bool $fs - status
     *
     * @return DataResponse
     */
    #[NoAdminRequired]
    #[NoCSRFRequired]
    #[PublicPage]
    public function keylock($shareToken, $path, $lock, $fs) {
        list($file, $error, $share) = $this->fileUtility->getFileByToken(null, $shareToken, $path);

        if (isset($error)) {
            $this->logger->error("Federated getFileByToken: $error");
            return new DataResponse(["error" => $error]);
        }

        $fileId = $file->getId();

        if (RemoteInstance::isRemoteFile($file)) {
            $isLock = RemoteInstance::lockRemoteKey($file, $lock, $fs);
            if (!$isLock) {
                return new DataResponse(["error" => "Failed request"]);
            }
        } else {
            KeyManager::lock($fileId, $lock);
            if (!empty($fs)) {
                KeyManager::setForcesave($fileId, $fs);
            }
        }

        $this->logger->debug("Federated request lock for " . $fileId);
        return new DataResponse();
    }

    /**
     * Health check instance
     *
     * @return DataResponse
     */
    #[NoAdminRequired]
    #[NoCSRFRequired]
    #[PublicPage]
    public function healthcheck() {
        $this->logger->debug("Federated healthcheck");

        return new DataResponse(["alive" => true]);
    }
}