<?php
/*
 *  GNUfault.org - GNUfault's website
 *  Copyright (C) 2026  Connor Thomson
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero 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 Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

function start_session(): void {
    if (session_status() === PHP_SESSION_ACTIVE) {
        return;
    }

    session_set_cookie_params([
        'lifetime' => 0,
        'path'     => '/',
        'secure'   => true,
        'httponly' => true,
        'samesite' => 'Strict'
    ]);

    session_start();
}

function set_user_id(int $user_id): void {
    start_session();

    session_regenerate_id(true);

    $_SESSION['user_id'] = $user_id;
}

function get_user_id(): ?int {
    start_session();

    return isset($_SESSION['user_id']) ? (int)$_SESSION['user_id'] : null;
}

?>