<?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/>.
 */

define('ROOT', rtrim($_SERVER['DOCUMENT_ROOT'], '/') . '/');

require_once ROOT . '/php/session.php';
require_once ROOT . '/php/database.php';
require_once ROOT . '/php/mail.php';

if ($_SERVER["REQUEST_METHOD"] == "POST") {
    $username        = $_POST['username'];
    $password        = $_POST['password'];
    $confirmpassword = $_POST['confirmpassword'];
    $email           = $_POST['email'];

    if ($confirmpassword != $password) {
        echo "Passwords do not match!";
        exit;
    }

    $hashed_password = password_hash($password, PASSWORD_DEFAULT);

    $code = rand(1000, 9999);

    try {
        $sql = "INSERT INTO users (username, email, password, verification_code, status) VALUES (:username, :email, :password, :code, :status)";

        $user_id = insert_row($sql, [
            'username' => $username,
            'email'    => $email,
            'password' => $hashed_password,
            'code'     => $code,
            'status'   => 'none'
        ]);

        set_user_id($user_id);
    } catch (\PDOException $e) {
        if ($e->getCode() == 23000) {
            echo "Error: Username or email is already taken.";
        } else {
            echo "Error: " . $e->getMessage();
        }
        exit;
    }

    $subject = "GNUfault.org Verification Code";

    if (send_mail($email, $subject, (string)$code)) {
        header("Location: verify");
    } else {
        echo "Failed to send";
        exit;
    }
}

?>