<?php include "../../root.class.php";
$html = new html();
$html->add_styles_page();
$db = new db_safeguard();
session_start();

$today = new DateTime();
$today->modify('+2 hours');
$current_date = $today->format('Y-m-d' . '_' . 'H:i');

// Make sure user is logged in and file is uploaded
if (!isset($_SESSION['user_id'])) {
    echo "User not logged in.";
    exit;
}

if (!isset($_FILES['file'])) {
    echo "No file uploaded.";
    exit;
}

try {

    if ($type == "driver") {
        $target_file = "../receive/signatures/driver-signature-{$current_date}.png";

        if (file_exists($target_file)) {
            $visitor_no++;
            $target_file = "../receive/signatures/driver-signature-{$current_date}.png";
        } else {
            $target_file = "../receive/signatures/driver-signature-{$current_date}.png";
        }

        // Optional: Validate the file type
        if ($_FILES["file"]["type"] !== "image/png") {
            echo "Invalid file type. Only PNG allowed.";
            exit;
        }

        // Move the uploaded file
        if (move_uploaded_file($_FILES["file"]["tmp_name"], $target_file)) {
            echo "OK";
        } else {
            echo "Failed to move uploaded file.";
        }
    }

    return 1;

} catch (Exception $e) {
    echo "Error: " . $e->getMessage();
}
?>