namespace NATS.Server;

/// <summary>
/// MQTT protocol configuration options.
/// Corresponds to Go server/opts.go MQTTOpts struct.
/// Config is parsed and stored but no MQTT listener is started yet.
/// </summary>
public sealed class MqttOptions
{
    // Network
    public string Host { get; set; } = "";
    public int Port { get; set; }

    // Auth override (MQTT-specific, separate from global auth)
    public string? NoAuthUser { get; set; }
    public string? Username { get; set; }
    public string? Password { get; set; }
    public string? Token { get; set; }
    public double AuthTimeout { get; set; }

    // TLS
    public string? TlsCert { get; set; }
    public string? TlsKey { get; set; }
    public string? TlsCaCert { get; set; }
    public bool TlsVerify { get; set; }
    public double TlsTimeout { get; set; } = 2.0;
    public bool TlsMap { get; set; }
    public HashSet<string>? TlsPinnedCerts { get; set; }

    // JetStream integration
    public string? JsDomain { get; set; }
    public int StreamReplicas { get; set; }
    public int ConsumerReplicas { get; set; }
    public bool ConsumerMemoryStorage { get; set; }
    public TimeSpan ConsumerInactiveThreshold { get; set; }

    // QoS
    public TimeSpan AckWait { get; set; } = TimeSpan.FromSeconds(30);
    public ushort MaxAckPending { get; set; }
    public TimeSpan JsApiTimeout { get; set; } = TimeSpan.FromSeconds(5);
    public bool SessionPersistence { get; set; } = true;
    public TimeSpan SessionTtl { get; set; } = TimeSpan.FromHours(1);
    public bool Qos1PubAck { get; set; } = true;

    public bool HasTls => TlsCert != null && TlsKey != null;
}