using Agc.Unity.Attach;

if (args.Length != 0)
{
    Console.Error.WriteLine("The Unity helper accepts only controlled NDJSON requests on standard input.");
    return 2;
}
await using var host = new HelperHost(new AttachBackend());
try
{
    await ProtocolServer.RunAsync(Console.OpenStandardInput(), Console.OpenStandardOutput(), host);
    return 0;
}
catch (IOException)
{
    // A closed host pipe must never cause reconnection or replay.
    return 1;
}