python-kasa/kasa/descriptors.py

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"""Generic interface for defining device features."""
from dataclasses import dataclass
from enum import Enum, auto
from typing import Any, Callable
class DescriptorCategory(Enum):
"""Descriptor category."""
# TODO: we could probably do better than using the scheme homeassistant is using
Config = auto()
Diagnostic = auto()
class DescriptorType(Enum):
"""Type of the information defined by the descriptor."""
Sensor = auto()
BinarySensor = auto()
Switch = auto()
Button = auto()
@dataclass
class Descriptor:
"""Descriptor defines a generic interface for device features."""
device: Any # TODO: rename to something else, this can also be a module.
#: User-friendly short description
name: str
#: Name of the property that allows accessing the value
attribute_getter: str | Callable
#: Name of the method that allows changing the value
attribute_setter: str | None = None
#: Type of the information
icon: str | None = None
#: Unit of the descriptor
unit: str | None = None
#: Hint for homeassistant
#: TODO: Replace with a set of flags to allow homeassistant make its own decision?
show_in_hass: bool = True
category: DescriptorCategory = DescriptorCategory.Diagnostic
type: DescriptorType = DescriptorType.Sensor
@property
def value(self):
"""Return the current value."""
if isinstance(self.attribute_getter, Callable):
return self.attribute_getter(self.device)
return getattr(self.device, self.attribute_getter)
async def set_value(self, value):
"""Set the value."""
return await getattr(self.device, self.attribute_setter)(value)