<?php

namespace App\Services;

class RealmStatusProbe
{
    public function isOnline(string $address, int $port): bool
    {
        if ($address === '' || $port < 1 || $port > 65535) {
            return false;
        }

        $host = str_contains($address, ':') && ! str_starts_with($address, '[')
            ? '['.$address.']'
            : $address;
        $timeout = max(0.1, min(3.0, (float) config('moonwell.launcher.realm_status_timeout', 0.5)));
        $socket = @stream_socket_client(
            'tcp://'.$host.':'.$port,
            $errorCode,
            $errorMessage,
            $timeout,
            STREAM_CLIENT_CONNECT,
        );

        if ($socket === false) {
            return false;
        }

        fclose($socket);

        return true;
    }
}