import { MessageTypes } from "../common";
import { numberToUint16BE } from "../utilities/number";
import { packOutgoingPacket } from "./packet";

const MESSAGE_TYPE = numberToUint16BE(MessageTypes.Keepalive);

/**
 * Create an outgoing keepalive (0x0005) packet.
 * @returns An outgoing keepalive (0x0005) packet.
 */
export function packKeepaliveMessage(): Uint8Array {
  return packOutgoingPacket({
    messageType: MESSAGE_TYPE,
  });
}