<?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 Fisharebest\Webtrees\Contracts\UserInterface;
use Fisharebest\Webtrees\Http\ViewResponseTrait;
use Fisharebest\Webtrees\I18N;
use Fisharebest\Webtrees\Module\ModuleBlockInterface;
use Fisharebest\Webtrees\Services\HomePageService;
use Fisharebest\Webtrees\Tree;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Server\RequestHandlerInterface;

use function assert;
use function route;

/**
 * Show a form to edit the blocks on a tree's page.
 */
class TreePageEdit implements RequestHandlerInterface
{
    use ViewResponseTrait;

    private HomePageService $home_page_service;

    /**
     * @param HomePageService $home_page_service
     */
    public function __construct(HomePageService $home_page_service)
    {
        $this->home_page_service = $home_page_service;
    }

    /**
     * @param ServerRequestInterface $request
     *
     * @return ResponseInterface
     */
    public function handle(ServerRequestInterface $request): ResponseInterface
    {
        $tree = $request->getAttribute('tree');
        assert($tree instanceof Tree);

        $user = $request->getAttribute('user');
        assert($user instanceof UserInterface);

        $main_blocks = $this->home_page_service->treeBlocks($tree, $user, ModuleBlockInterface::MAIN_BLOCKS);
        $side_blocks = $this->home_page_service->treeBlocks($tree, $user, ModuleBlockInterface::SIDE_BLOCKS);

        $all_blocks = $this->home_page_service->availableTreeBlocks($tree, $user);
        $title      = I18N::translate('Change the “Home page” blocks');
        $url_cancel = route(TreePage::class, ['tree' => $tree->name()]);
        $url_save   = route(TreePageUpdate::class, ['tree' => $tree->name()]);

        return $this->viewResponse('edit-blocks-page', [
            'all_blocks'  => $all_blocks,
            'can_reset'   => true,
            'main_blocks' => $main_blocks,
            'side_blocks' => $side_blocks,
            'title'       => $title,
            'tree'        => $tree,
            'url_cancel'  => $url_cancel,
            'url_save'    => $url_save,
        ]);
    }
}