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"""
Module for Serialization and Deserialization of KNX Description Requests.
The DESCRIPTION_REQUEST frame shall be sent by the KNXnet/IP Client to the control endpoint
of the KNXnet/IP Server to obtain a self-description of the KNXnet/IP Server device.
"""
from __future__ import annotations
from .body import KNXIPBody
from .hpai import HPAI
from .knxip_enum import KNXIPServiceType
class DescriptionRequest(KNXIPBody):
"""Representation of a KNX Description Request."""
SERVICE_TYPE = KNXIPServiceType.DESCRIPTION_REQUEST
def __init__(self, control_endpoint: HPAI | None = None) -> None:
"""Initialize SearchRequest object."""
self.control_endpoint = control_endpoint or HPAI()
def calculated_length(self) -> int:
"""Get length of KNX/IP body."""
return HPAI.LENGTH
def from_knx(self, raw: bytes) -> int:
"""Parse/deserialize from KNX/IP raw data."""
return self.control_endpoint.from_knx(raw)
def to_knx(self) -> bytes:
"""Serialize to KNX/IP raw data."""
return self.control_endpoint.to_knx()
def __repr__(self) -> str:
"""Return object as readable string."""
return f'<DescriptionRequest control_endpoint="{self.control_endpoint}" />'
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