<?php

namespace Odan\Session\Middleware;

use Odan\Session\SessionManagerInterface;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Server\MiddlewareInterface;
use Psr\Http\Server\RequestHandlerInterface;

final class SessionStartMiddleware implements MiddlewareInterface
{
    private SessionManagerInterface $session;

    public function __construct(SessionManagerInterface $session)
    {
        $this->session = $session;
    }

    public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
    {
        if (!$this->session->isStarted()) {
            $this->session->start();
        }

        $response = $handler->handle($request);
        $this->session->save();

        return $response;
    }
}