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"""Abstraction to send SessionAuthenticate and wait for SessionStatus."""
from __future__ import annotations
from typing import TYPE_CHECKING
from xknx.knxip import KNXIPFrame, SessionAuthenticate, SessionStatus
from .request_response import RequestResponse
if TYPE_CHECKING:
from xknx.io.transport import KNXIPTransport
class Authenticate(RequestResponse):
"""Class to send a SessionAuthenticate and wait for SessionStatus."""
def __init__(
self,
transport: KNXIPTransport,
user_id: int,
message_authentication_code: bytes,
) -> None:
"""Initialize Session class."""
super().__init__(transport, SessionStatus, timeout_in_seconds=10)
self.user_id = user_id
self.message_authentication_code = message_authentication_code
self.response: SessionStatus | None = None
def create_knxipframe(self) -> KNXIPFrame:
"""Create KNX/IP Frame object to be sent to device."""
return KNXIPFrame.init_from_body(
SessionAuthenticate(
user_id=self.user_id,
message_authentication_code=self.message_authentication_code,
)
)
def on_success_hook(self, knxipframe: KNXIPFrame) -> None:
"""Set communication channel and identifier after having received a valid answer."""
assert isinstance(knxipframe.body, SessionStatus)
self.response = knxipframe.body
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