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"""Abstraction to send a TunnelingRequest and wait for TunnelingResponse."""
from __future__ import annotations
from typing import TYPE_CHECKING
from xknx.knxip import KNXIPFrame, TunnellingAck, TunnellingRequest
from .request_response import RequestResponse
if TYPE_CHECKING:
from xknx.io.transport import UDPTransport
class Tunnelling(RequestResponse):
"""Class to send TunnelingRequest and wait for TunnelingACK (UDP only)."""
transport: UDPTransport
def __init__(
self,
transport: UDPTransport,
data_endpoint: tuple[str, int] | None,
tunnelling_request: TunnellingRequest,
) -> None:
"""Initialize Tunnelling class."""
self.data_endpoint_addr = data_endpoint
self.tunnelling_request = tunnelling_request
super().__init__(transport, TunnellingAck)
async def send_request(self) -> None:
"""Build knxipframe (within derived class) and send via UDP."""
self.transport.send(self.create_knxipframe(), addr=self.data_endpoint_addr)
def create_knxipframe(self) -> KNXIPFrame:
"""Create KNX/IP Frame object to be sent to device."""
return KNXIPFrame.init_from_body(self.tunnelling_request)
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