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climate.py
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climate.py
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"""Support for control of Elk-M1 connected thermostats."""
from __future__ import annotations
from typing import Any
from elkm1_lib.const import ThermostatFan, ThermostatMode, ThermostatSetting
from elkm1_lib.elements import Element
from elkm1_lib.elk import Elk
from elkm1_lib.thermostats import Thermostat
from homeassistant.components.climate import (
ATTR_TARGET_TEMP_HIGH,
ATTR_TARGET_TEMP_LOW,
FAN_AUTO,
FAN_ON,
ClimateEntity,
ClimateEntityFeature,
HVACMode,
)
from homeassistant.config_entries import ConfigEntry
from homeassistant.const import PRECISION_WHOLE
from homeassistant.core import HomeAssistant
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from . import ElkEntity, create_elk_entities
from .const import DOMAIN
SUPPORT_HVAC = [
HVACMode.OFF,
HVACMode.HEAT,
HVACMode.COOL,
HVACMode.HEAT_COOL,
HVACMode.FAN_ONLY,
]
HASS_TO_ELK_HVAC_MODES = {
HVACMode.OFF: (ThermostatMode.OFF, ThermostatFan.AUTO),
HVACMode.HEAT: (ThermostatMode.HEAT, None),
HVACMode.COOL: (ThermostatMode.COOL, None),
HVACMode.HEAT_COOL: (ThermostatMode.AUTO, None),
HVACMode.FAN_ONLY: (ThermostatMode.OFF, ThermostatFan.ON),
}
ELK_TO_HASS_HVAC_MODES = {
ThermostatMode.OFF: HVACMode.OFF,
ThermostatMode.COOL: HVACMode.COOL,
ThermostatMode.HEAT: HVACMode.HEAT,
ThermostatMode.EMERGENCY_HEAT: HVACMode.HEAT,
ThermostatMode.AUTO: HVACMode.HEAT_COOL,
}
HASS_TO_ELK_FAN_MODES = {
FAN_AUTO: (None, ThermostatFan.AUTO),
FAN_ON: (None, ThermostatFan.ON),
}
ELK_TO_HASS_FAN_MODES = {
ThermostatFan.AUTO: FAN_AUTO,
ThermostatFan.ON: FAN_ON,
}
async def async_setup_entry(
hass: HomeAssistant,
config_entry: ConfigEntry,
async_add_entities: AddEntitiesCallback,
) -> None:
"""Create the Elk-M1 thermostat platform."""
elk_data = hass.data[DOMAIN][config_entry.entry_id]
entities: list[ElkEntity] = []
elk = elk_data["elk"]
create_elk_entities(
elk_data, elk.thermostats, "thermostat", ElkThermostat, entities
)
async_add_entities(entities)
class ElkThermostat(ElkEntity, ClimateEntity):
"""Representation of an Elk-M1 Thermostat."""
_attr_precision = PRECISION_WHOLE
_attr_supported_features = (
ClimateEntityFeature.FAN_MODE
| ClimateEntityFeature.AUX_HEAT
| ClimateEntityFeature.TARGET_TEMPERATURE_RANGE
)
_element: Thermostat
def __init__(self, element: Element, elk: Elk, elk_data: dict[str, Any]) -> None:
"""Initialize climate entity."""
super().__init__(element, elk, elk_data)
self._state: str | None = None
@property
def temperature_unit(self) -> str:
"""Return the temperature unit."""
return self._temperature_unit
@property
def current_temperature(self) -> float | None:
"""Return the current temperature."""
return self._element.current_temp
@property
def target_temperature(self) -> float | None:
"""Return the temperature we are trying to reach."""
if self._element.mode in (
ThermostatMode.HEAT,
ThermostatMode.EMERGENCY_HEAT,
):
return self._element.heat_setpoint
if self._element.mode == ThermostatMode.COOL:
return self._element.cool_setpoint
return None
@property
def target_temperature_high(self) -> float | None:
"""Return the high target temperature."""
return self._element.cool_setpoint
@property
def target_temperature_low(self) -> float | None:
"""Return the low target temperature."""
return self._element.heat_setpoint
@property
def target_temperature_step(self) -> float:
"""Return the supported step of target temperature."""
return 1
@property
def current_humidity(self) -> int | None:
"""Return the current humidity."""
return self._element.humidity
@property
def hvac_mode(self) -> str | None:
"""Return current operation ie. heat, cool, idle."""
return self._state
@property
def hvac_modes(self) -> list[HVACMode]:
"""Return the list of available operation modes."""
return SUPPORT_HVAC
@property
def is_aux_heat(self) -> bool:
"""Return if aux heater is on."""
return self._element.mode == ThermostatMode.EMERGENCY_HEAT
@property
def min_temp(self) -> float:
"""Return the minimum temperature supported."""
return 1
@property
def max_temp(self) -> float:
"""Return the maximum temperature supported."""
return 99
@property
def fan_mode(self) -> str | None:
"""Return the fan setting."""
if self._element.fan is None:
return None
return ELK_TO_HASS_FAN_MODES[self._element.fan]
def _elk_set(self, mode: ThermostatMode | None, fan: ThermostatFan | None) -> None:
if mode is not None:
self._element.set(ThermostatSetting.MODE, mode)
if fan is not None:
self._element.set(ThermostatSetting.FAN, fan)
async def async_set_hvac_mode(self, hvac_mode: HVACMode) -> None:
"""Set thermostat operation mode."""
thermostat_mode, fan_mode = HASS_TO_ELK_HVAC_MODES[hvac_mode]
self._elk_set(thermostat_mode, fan_mode)
async def async_turn_aux_heat_on(self) -> None:
"""Turn auxiliary heater on."""
self._elk_set(ThermostatMode.EMERGENCY_HEAT, None)
async def async_turn_aux_heat_off(self) -> None:
"""Turn auxiliary heater off."""
self._elk_set(ThermostatMode.HEAT, None)
@property
def fan_modes(self) -> list[str]:
"""Return the list of available fan modes."""
return [FAN_AUTO, FAN_ON]
async def async_set_fan_mode(self, fan_mode: str) -> None:
"""Set new target fan mode."""
thermostat_mode, elk_fan_mode = HASS_TO_ELK_FAN_MODES[fan_mode]
self._elk_set(thermostat_mode, elk_fan_mode)
async def async_set_temperature(self, **kwargs: Any) -> None:
"""Set new target temperature."""
low_temp = kwargs.get(ATTR_TARGET_TEMP_LOW)
high_temp = kwargs.get(ATTR_TARGET_TEMP_HIGH)
if low_temp is not None:
self._element.set(ThermostatSetting.HEAT_SETPOINT, round(low_temp))
if high_temp is not None:
self._element.set(ThermostatSetting.COOL_SETPOINT, round(high_temp))
def _element_changed(self, element: Element, changeset: Any) -> None:
if self._element.mode is None:
self._state = None
else:
self._state = ELK_TO_HASS_HVAC_MODES[self._element.mode]
if self._state == HVACMode.OFF and self._element.fan == ThermostatFan.ON:
self._state = HVACMode.FAN_ONLY