<?php
if (isset($_GET['serial_number'])) {
    $serialized_files_root_path = dirname(dirname(__FILE__)) . '/serialized_trademarks';
    $serialized_file_relative_path = get_serialized_file_relative_path($_GET['serial_number']);
    $serialized_file_absolute_path = $serialized_files_root_path . '/' . $serialized_file_relative_path;
    $trademark_serialized_file = @file_get_contents($serialized_file_absolute_path);
}

if (!$trademark_serialized_file) {
    show_404();
}

$trademark = unserialize($trademark_serialized_file);

$visibility = array_key_exists('visibility', $trademark)
    ? $trademark['visibility']
    : 1;
if ($visibility == 0) {
    show_404('410');
}

$tm_path = trim($trademark['path'], '/');
$url_path = trim($_GET['path'], '/');
if ($tm_path != $url_path) {
    if (preg_match('/trademarksdev/', __FILE__)) {
        $domain = 'http://devel.trademarksdev.justiapro.com';
    } else {
        $domain = 'https://trademarks.justia.com';
    }
    header("HTTP/1.1 301 Moved Permanently");
    header("Location: " . $domain . '/' . $tm_path);
}

require_once(dirname(__FILE__) . '/page_renderers/trademark/TrademarkCasePageRenderer.php');
$renderer = new TrademarkCasePageRenderer();
$renderer->set_trademark_data($trademark);
$renderer->render();

function get_serialized_file_relative_path($serial_number)
{
    $filename = $serial_number . '.dat';
    return substr($serial_number, 0, 3) . '/' . substr($serial_number, 3, 2) . '/' . $filename;
}

function show_404($code = '404')
{
    header("HTTP/1.0 $code Not Found");
    echo file_get_contents(dirname(__FILE__) . '/404.html');
    die();
}