python-kasa/kasa/smart/modules/powerprotection.py
2025-01-23 17:34:00 +00:00

117 lines
4.0 KiB
Python

"""Power protection module."""
from __future__ import annotations
from typing import Annotated
from ...feature import Feature
from ...module import FeatureAttribute
from ..smartmodule import SmartModule
class PowerProtection(SmartModule):
"""Implementation for power_protection."""
REQUIRED_COMPONENT = "power_protection"
def _initialize_features(self) -> None:
"""Initialize features after the initial update."""
self._add_feature(
Feature(
device=self._device,
id="overloaded",
name="Overloaded",
container=self,
attribute_getter="overloaded",
type=Feature.Type.BinarySensor,
category=Feature.Category.Info,
)
)
self._add_feature(
Feature(
device=self._device,
id="power_protection_threshold",
name="Power protection threshold",
container=self,
attribute_getter=lambda x: self.protection_threshold
if self.enabled
else 0,
attribute_setter=lambda x: self.set_enabled(False)
if x == 0
else self.set_enabled(True, threshold=x),
unit_getter=lambda: "W",
type=Feature.Type.Number,
range_getter=lambda: (0, self._max_power),
category=Feature.Category.Config,
)
)
def query(self) -> dict:
"""Query to execute during the update cycle."""
return {"get_protection_power": {}, "get_max_power": {}}
@property
def overloaded(self) -> bool:
"""Return True is power protection has been triggered.
This value remains True until the device is turned on again.
"""
return self._device.sys_info["power_protection_status"] == "overloaded"
@property
def enabled(self) -> bool:
"""Return True if child protection is enabled."""
return self.data["get_protection_power"]["enabled"]
async def set_enabled(self, enabled: bool, *, threshold: int | None = None) -> dict:
"""Set child protection.
If power protection has never been enabled before the threshold will
be 0 so if threshold is not provided it will be set to half the max.
"""
if threshold is None and enabled and self.protection_threshold == 0:
threshold = int(self._max_power / 2)
if threshold and (threshold < 0 or threshold > self._max_power):
raise ValueError(
"Threshold out of range: %s (%s)", threshold, self.protection_threshold
)
params = {**self.data["get_protection_power"], "enabled": enabled}
if threshold is not None:
params["protection_power"] = threshold
return await self.call("set_protection_power", params)
@property
def _max_power(self) -> int:
"""Return max power."""
return self.data["get_max_power"]["max_power"]
@property
def protection_threshold(
self,
) -> Annotated[int, FeatureAttribute("power_protection_threshold")]:
"""Return protection threshold in watts."""
# If never configured, there is no value set.
return self.data["get_protection_power"].get("protection_power", 0)
async def set_protection_threshold(self, threshold: int) -> dict:
"""Set protection threshold."""
if threshold < 0 or threshold > self._max_power:
raise ValueError(
"Threshold out of range: %s (%s)", threshold, self.protection_threshold
)
params = {
**self.data["get_protection_power"],
"protection_power": threshold,
}
return await self.call("set_protection_power", params)
async def _check_supported(self) -> bool:
"""Return True if module is supported.
This is needed, as strips like P304M report the status only for children.
"""
return "power_protection_status" in self._device.sys_info