<?php

/**
 * webtrees: online genealogy
 * Copyright (C) 2019 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 <http://www.gnu.org/licenses/>.
 */
declare(strict_types=1);

namespace Fisharebest\Webtrees\Http\Middleware;

use Fisharebest\Webtrees\Module\ModuleInterface;
use Fisharebest\Webtrees\Module\ModuleThemeInterface;
use Fisharebest\Webtrees\Services\ModuleService;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Server\MiddlewareInterface;
use Psr\Http\Server\RequestHandlerInterface;
use function method_exists;

/**
 * Middleware to bootstrap the modules.
 */
class BootModules implements MiddlewareInterface
{
    /** @var ModuleService */
    private $module_service;

    /** @var ModuleThemeInterface */
    private $theme;

    /**
     * BootModules constructor.
     *
     * @param ModuleService        $module_service
     * @param ModuleThemeInterface $theme
     */
    public function __construct(ModuleService $module_service, ModuleThemeInterface $theme)
    {
        $this->module_service = $module_service;
        $this->theme          = $theme;
    }

    /**
     * @param ServerRequestInterface  $request
     * @param RequestHandlerInterface $handler
     *
     * @return ResponseInterface
     */
    public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
    {
        $bootable_modules = $this->module_service->all()->filter(static function (ModuleInterface $module) {
            return method_exists($module, 'boot');
        });

        foreach ($bootable_modules as $module) {
            // Only bootstrap the current theme.
            if ($module instanceof ModuleThemeInterface && $module !== $this->theme) {
                continue;
            }

            app()->dispatch($module, 'boot');
        }

        return $handler->handle($request);
    }
}