<?php

/**
 * webtrees: online genealogy
 * Copyright (C) 2021 webtrees development team
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU 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 General Public License for more details.
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <https://www.gnu.org/licenses/>.
 */

declare(strict_types=1);

namespace Fisharebest\Webtrees\Http\RequestHandlers;

use Exception;
use Fisharebest\Webtrees\Auth;
use Fisharebest\Webtrees\Http\Exceptions\HttpAccessDeniedException;
use Fisharebest\Webtrees\Http\Exceptions\HttpNotFoundException;
use Fisharebest\Webtrees\I18N;
use Fisharebest\Webtrees\Registry;
use Fisharebest\Webtrees\Services\MediaFileService;
use Fisharebest\Webtrees\Tree;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Server\RequestHandlerInterface;

use function assert;
use function is_string;
use function response;
use function view;

/**
 * Add a new media file to a media object.
 */
class AddMediaFileModal implements RequestHandlerInterface
{
    private MediaFileService $media_file_service;

    /**
     * AddMediaFileModal constructor.
     *
     * @param MediaFileService $media_file_service
     */
    public function __construct(MediaFileService $media_file_service)
    {
        $this->media_file_service = $media_file_service;
    }

    /**
     * Add a media file to an existing media object.
     *
     * @param ServerRequestInterface $request
     *
     * @return ResponseInterface
     */
    public function handle(ServerRequestInterface $request): ResponseInterface
    {
        $tree = $request->getAttribute('tree');
        assert($tree instanceof Tree);

        $xref = $request->getAttribute('xref');
        assert(is_string($xref));

        $data_filesystem = Registry::filesystem()->data();

        $media = Registry::mediaFactory()->make($xref, $tree);

        try {
            $media = Auth::checkMediaAccess($media);
        } catch (HttpNotFoundException | HttpAccessDeniedException $ex) {
            return response(view('modals/error', [
                'title' => I18N::translate('Add a media file'),
                'error' => $ex->getMessage(),
            ]));
        }

        $max_upload_size = $this->media_file_service->maxUploadFilesize();
        $media_types     = Registry::elementFactory()->make('OBJE:FILE:FORM:TYPE')->values();
        $unused_files    = $this->media_file_service->unusedFiles($tree, $data_filesystem);

        return response(view('modals/add-media-file', [
            'max_upload_size' => $max_upload_size,
            'media'           => $media,
            'media_types'     => $media_types,
            'tree'            => $tree,
            'unused_files'    => $unused_files,
        ]));
    }
}