1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
"""Implementation of KNX DPT 18 Scene control."""
from __future__ import annotations
from collections.abc import Mapping
from dataclasses import dataclass
from typing import Any
from .dpt import DPTComplex, DPTComplexData
from .dpt_17 import DPTSceneNumber
from .payload import DPTArray, DPTBinary
@dataclass(slots=True)
class SceneControl(DPTComplexData):
"""Class for scene control."""
scene_number: int
learn: bool = False
@classmethod
def from_dict(cls, data: Mapping[str, Any]) -> SceneControl:
"""Init from a dictionary."""
try:
scene_number = int(data["scene_number"])
learn = data.get("learn", False)
except (KeyError, TypeError, ValueError) as err:
raise ValueError(f"Invalid value for SceneControl: {err}") from err
if learn not in (True, False):
raise ValueError(f"Invalid value for SceneControl value `learn`: {learn}")
return cls(scene_number=scene_number, learn=bool(learn))
def as_dict(self) -> dict[str, int | str]:
"""Create a JSON serializable dictionary."""
return {
"scene_number": self.scene_number,
"learn": self.learn,
}
class DPTSceneControl(DPTComplex[SceneControl]):
"""
Abstraction for KNX 1 Octet Scene Control.
DPT 18.001
"""
data_type = SceneControl
payload_type = DPTArray
payload_length = 1
dpt_main_number = 18
dpt_sub_number = 1
value_type = "scene_control"
@classmethod
def from_knx(cls, payload: DPTArray | DPTBinary) -> SceneControl:
"""Parse/deserialize from KNX/IP raw data."""
raw = cls.validate_payload(payload)[0]
return SceneControl(
learn=bool(raw & 0x80),
scene_number=(raw & 0x3F) + 1,
)
@classmethod
def _to_knx(cls, value: SceneControl) -> DPTArray:
"""Serialize to KNX/IP raw data."""
scene_payload = DPTSceneNumber.to_knx(value.scene_number)
if value.learn:
return DPTArray(scene_payload.value[0] | 0x80)
return scene_payload
|
