#!/usr/bin/env python

from typing import Union

class CtrlMessage:
    pass

class GameMessage:
    pass

class SysMessage:
    pass

class PacketFlags7():
    CONTROL = False
    RESEND = False
    COMPRESSION = False
    CONNLESS = False

class PacketFlags6():
    TOKEN = False
    CONTROL = False
    RESEND = False
    COMPRESSION = False
    CONNLESS = False

class Header:
    def __init__(self) -> None:
        self.flags: PacketFlags7 = PacketFlags7()
        self.size: int = 0
        self.seq: int = 0 # TODO: seq or ack?
        self.token: bytes = b'\xff\xff\xff\xff'
        self.num_chunks: int = 0

class TwPacket:
    def __init__(self) -> None:
        self.header: Header = Header()
        self.messages: list[Union[CtrlMessage, GameMessage, SysMessage]] = []
        self.messages.append(GameMessage())

    def __str__(self):
        return str(self.__class__) + ": " + str(self.__dict__)

pck = TwPacket()
print(pck)