79 lines
2.1 KiB
Python
79 lines
2.1 KiB
Python
"""Helper to test significant Water Heater state changes."""
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from __future__ import annotations
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from typing import Any
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from homeassistant.const import UnitOfTemperature
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from homeassistant.core import HomeAssistant, callback
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from homeassistant.helpers.significant_change import (
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check_absolute_change,
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check_valid_float,
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)
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from . import (
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ATTR_AWAY_MODE,
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ATTR_CURRENT_TEMPERATURE,
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ATTR_OPERATION_MODE,
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ATTR_TARGET_TEMP_HIGH,
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ATTR_TARGET_TEMP_LOW,
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ATTR_TEMPERATURE,
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)
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SIGNIFICANT_ATTRIBUTES: set[str] = {
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ATTR_CURRENT_TEMPERATURE,
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ATTR_TEMPERATURE,
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ATTR_TARGET_TEMP_HIGH,
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ATTR_TARGET_TEMP_LOW,
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ATTR_OPERATION_MODE,
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ATTR_AWAY_MODE,
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}
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@callback
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def async_check_significant_change(
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hass: HomeAssistant,
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old_state: str,
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old_attrs: dict,
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new_state: str,
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new_attrs: dict,
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**kwargs: Any,
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) -> bool | None:
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"""Test if state significantly changed."""
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if old_state != new_state:
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return True
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old_attrs_s = set(
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{k: v for k, v in old_attrs.items() if k in SIGNIFICANT_ATTRIBUTES}.items()
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)
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new_attrs_s = set(
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{k: v for k, v in new_attrs.items() if k in SIGNIFICANT_ATTRIBUTES}.items()
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)
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changed_attrs: set[str] = {item[0] for item in old_attrs_s ^ new_attrs_s}
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ha_unit = hass.config.units.temperature_unit
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for attr_name in changed_attrs:
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if attr_name in [ATTR_OPERATION_MODE, ATTR_AWAY_MODE]:
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return True
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old_attr_value = old_attrs.get(attr_name)
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new_attr_value = new_attrs.get(attr_name)
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if new_attr_value is None or not check_valid_float(new_attr_value):
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# New attribute value is invalid, ignore it
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continue
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if old_attr_value is None or not check_valid_float(old_attr_value):
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# Old attribute value was invalid, we should report again
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return True
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if ha_unit == UnitOfTemperature.FAHRENHEIT:
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absolute_change = 1.0
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else:
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absolute_change = 0.5
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if check_absolute_change(old_attr_value, new_attr_value, absolute_change):
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return True
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# no significant attribute change detected
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return False
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