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cbf82c9498
Previously, only v1 of on_off_gradually is supported, and the newer versions are not backwards compatible. This PR adds support for the newer versions of the component, and implements `number` type for `Feature` to expose the transition time selection. This also adds a new `supported_version` property to the main module API.
66 lines
2.1 KiB
Python
66 lines
2.1 KiB
Python
"""Generic interface for defining device features."""
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from dataclasses import dataclass
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from enum import Enum, auto
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from typing import TYPE_CHECKING, Any, Callable, Optional, Union
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if TYPE_CHECKING:
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from .device import Device
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class FeatureType(Enum):
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"""Type to help decide how to present the feature."""
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Sensor = auto()
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BinarySensor = auto()
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Switch = auto()
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Button = auto()
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Number = auto()
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@dataclass
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class Feature:
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"""Feature defines a generic interface for device features."""
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#: Device instance required for getting and setting values
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device: "Device"
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#: User-friendly short description
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name: str
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#: Name of the property that allows accessing the value
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attribute_getter: Union[str, Callable]
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#: Name of the method that allows changing the value
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attribute_setter: Optional[str] = None
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#: Container storing the data, this overrides 'device' for getters
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container: Any = None
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#: Icon suggestion
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icon: Optional[str] = None
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#: Type of the feature
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type: FeatureType = FeatureType.Sensor
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# Number-specific attributes
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#: Minimum value
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minimum_value: int = 0
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#: Maximum value
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maximum_value: int = 2**16 # Arbitrary max
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@property
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def value(self):
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"""Return the current value."""
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container = self.container if self.container is not None else self.device
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if isinstance(self.attribute_getter, Callable):
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return self.attribute_getter(container)
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return getattr(container, self.attribute_getter)
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async def set_value(self, value):
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"""Set the value."""
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if self.attribute_setter is None:
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raise ValueError("Tried to set read-only feature.")
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if self.type == FeatureType.Number: # noqa: SIM102
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if value < self.minimum_value or value > self.maximum_value:
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raise ValueError(
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f"Value {value} out of range "
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f"[{self.minimum_value}, {self.maximum_value}]"
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)
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container = self.container if self.container is not None else self.device
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return await getattr(container, self.attribute_setter)(value)
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