<?php

// Enable output compression
ini_set('zlib.output_compression', 1);

function getAllUsers()
{
    $opts = ['ignore_errors' => true];
    $ctx = stream_context_create(['http' => $opts]);
    $token = getenv('USER_TOKEN');

    $retval = @file_get_contents('https://main.php.net/fetch/allusers.php?&token=' . rawurlencode($token), false, $ctx);

    if (!$retval) {
        return;
    }

    $json = json_decode($retval, true);

    if (!is_array($json)) {
        return;
    }

    if (isset($json['error'])) {
        return;
    }
    return $json;
}

if (!file_exists("/tmp/svnusers.json") || filemtime("/tmp/svnusers.json") < $_SERVER["REQUEST_TIME"] - 3600) {
    $json = getAllUsers();
    $json_data = var_export($json, true);
    file_put_contents("/tmp/svnusers.php", '<?php $json = '.$json_data.';');
    $modified = time();
} else {
    include "/tmp/svnusers.php";
    $modified = filemtime("/tmp/svnusers.php");
}

$tsstring = gmdate('D, d M Y H:i:s ', $modified);
if (isset($_SERVER['HTTP_IF_MODIFIED_SINCE']) && $_SERVER['HTTP_IF_MODIFIED_SINCE'] == $tsstring) {
    header('HTTP/1.1 304 Not Modified');
    exit;
} else {
    $expires = gmdate('D, d M Y H:i:s ', strtotime('+2 months', $_SERVER['REQUEST_TIME'])) . 'GMT';
    header("Last-Modified: {$tsstring}");
    header("Expires: {$expires}");
}

$lookup = $user = [];

if ($json) {
    foreach ($json as $row) {
        $lookup[] = $row['name'];
        $lookup[] = $row["username"];

        $data = [
            'email'        => md5($row['username'] . '@php.net'),
            'name'        => $row['name'],
            'username'    => $row['username'],
        ];
        $user[$row["username"]] = $data;
        $user[$row["name"]]     = $data;
    }
}

echo 'var users = ', json_encode($user), ";\n",
     'var lookup = ', json_encode($lookup), ";\n";