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climate.py
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climate.py
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"""Support for Radio Thermostat wifi-enabled home thermostats."""
from __future__ import annotations
from typing import Any
import radiotherm
from homeassistant.components.climate import (
FAN_AUTO,
FAN_OFF,
FAN_ON,
PRESET_AWAY,
PRESET_HOME,
ClimateEntity,
ClimateEntityFeature,
HVACAction,
HVACMode,
)
from homeassistant.config_entries import ConfigEntry
from homeassistant.const import ATTR_TEMPERATURE, PRECISION_HALVES, UnitOfTemperature
from homeassistant.core import HomeAssistant, callback
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from . import DOMAIN
from .coordinator import RadioThermUpdateCoordinator
from .entity import RadioThermostatEntity
ATTR_FAN_ACTION = "fan_action"
PRESET_HOLIDAY = "holiday"
PRESET_ALTERNATE = "alternate"
STATE_CIRCULATE = "circulate"
PRESET_MODES = [PRESET_HOME, PRESET_ALTERNATE, PRESET_AWAY, PRESET_HOLIDAY]
OPERATION_LIST = [HVACMode.AUTO, HVACMode.COOL, HVACMode.HEAT, HVACMode.OFF]
CT30_FAN_OPERATION_LIST = [FAN_ON, FAN_AUTO]
CT80_FAN_OPERATION_LIST = [FAN_ON, STATE_CIRCULATE, FAN_AUTO]
# Mappings from radiotherm json data codes to and from Home Assistant state
# flags. CODE is the thermostat integer code and these map to and
# from Home Assistant state flags.
# Programmed temperature mode of the thermostat.
CODE_TO_TEMP_MODE = {
0: HVACMode.OFF,
1: HVACMode.HEAT,
2: HVACMode.COOL,
3: HVACMode.AUTO,
}
TEMP_MODE_TO_CODE = {v: k for k, v in CODE_TO_TEMP_MODE.items()}
# Programmed fan mode (circulate is supported by CT80 models)
CODE_TO_FAN_MODE = {0: FAN_AUTO, 1: STATE_CIRCULATE, 2: FAN_ON}
FAN_MODE_TO_CODE = {v: k for k, v in CODE_TO_FAN_MODE.items()}
# Active thermostat state (is it heating or cooling?). In the future
# this should probably made into heat and cool binary sensors.
CODE_TO_TEMP_STATE = {0: HVACAction.IDLE, 1: HVACAction.HEATING, 2: HVACAction.COOLING}
# Active fan state. This is if the fan is actually on or not. In the
# future this should probably made into a binary sensor for the fan.
CODE_TO_FAN_STATE = {0: FAN_OFF, 1: FAN_ON}
PRESET_MODE_TO_CODE = {
PRESET_HOME: 0,
PRESET_ALTERNATE: 1,
PRESET_AWAY: 2,
PRESET_HOLIDAY: 3,
}
CODE_TO_PRESET_MODE = {v: k for k, v in PRESET_MODE_TO_CODE.items()}
PARALLEL_UPDATES = 1
CONF_HOLD_TEMP = "hold_temp"
def round_temp(temperature):
"""Round a temperature to the resolution of the thermostat.
RadioThermostats can handle 0.5 degree temps so the input
temperature is rounded to that value and returned.
"""
return round(temperature * 2.0) / 2.0
async def async_setup_entry(
hass: HomeAssistant,
entry: ConfigEntry,
async_add_entities: AddEntitiesCallback,
) -> None:
"""Set up climate for a radiotherm device."""
coordinator: RadioThermUpdateCoordinator = hass.data[DOMAIN][entry.entry_id]
async_add_entities([RadioThermostat(coordinator)])
class RadioThermostat(RadioThermostatEntity, ClimateEntity):
"""Representation of a Radio Thermostat."""
_attr_hvac_modes = OPERATION_LIST
_attr_temperature_unit = UnitOfTemperature.FAHRENHEIT
_attr_precision = PRECISION_HALVES
def __init__(self, coordinator: RadioThermUpdateCoordinator) -> None:
"""Initialize the thermostat."""
super().__init__(coordinator)
self._attr_name = self.init_data.name
self._attr_unique_id = self.init_data.mac
self._attr_fan_modes = CT30_FAN_OPERATION_LIST
self._attr_supported_features = (
ClimateEntityFeature.TARGET_TEMPERATURE | ClimateEntityFeature.FAN_MODE
)
if not isinstance(self.device, radiotherm.thermostat.CT80):
return
self._attr_fan_modes = CT80_FAN_OPERATION_LIST
self._attr_supported_features |= ClimateEntityFeature.PRESET_MODE
self._attr_preset_modes = PRESET_MODES
async def async_set_fan_mode(self, fan_mode: str) -> None:
"""Turn fan on/off."""
if (code := FAN_MODE_TO_CODE.get(fan_mode)) is None:
raise ValueError(f"{fan_mode} is not a valid fan mode")
await self.hass.async_add_executor_job(self._set_fan_mode, code)
self._attr_fan_mode = fan_mode
self.async_write_ha_state()
await self.coordinator.async_request_refresh()
def _set_fan_mode(self, code: int) -> None:
"""Turn fan on/off."""
self.device.fmode = code
@callback
def _process_data(self) -> None:
"""Update and validate the data from the thermostat."""
data = self.data.tstat
if isinstance(self.device, radiotherm.thermostat.CT80):
self._attr_current_humidity = self.data.humidity
self._attr_preset_mode = CODE_TO_PRESET_MODE[data["program_mode"]]
# Map thermostat values into various STATE_ flags.
self._attr_current_temperature = data["temp"]
self._attr_fan_mode = CODE_TO_FAN_MODE[data["fmode"]]
self._attr_extra_state_attributes = {
ATTR_FAN_ACTION: CODE_TO_FAN_STATE[data["fstate"]]
}
self._attr_hvac_mode = CODE_TO_TEMP_MODE[data["tmode"]]
if self.hvac_mode == HVACMode.OFF:
self._attr_hvac_action = None
else:
self._attr_hvac_action = CODE_TO_TEMP_STATE[data["tstate"]]
if self.hvac_mode == HVACMode.COOL:
self._attr_target_temperature = data["t_cool"]
elif self.hvac_mode == HVACMode.HEAT:
self._attr_target_temperature = data["t_heat"]
elif self.hvac_mode == HVACMode.AUTO:
# This doesn't really work - tstate is only set if the HVAC is
# active. If it's idle, we don't know what to do with the target
# temperature.
if self.hvac_action == HVACAction.COOLING:
self._attr_target_temperature = data["t_cool"]
elif self.hvac_action == HVACAction.HEATING:
self._attr_target_temperature = data["t_heat"]
async def async_set_temperature(self, **kwargs: Any) -> None:
"""Set new target temperature."""
if (temperature := kwargs.get(ATTR_TEMPERATURE)) is None:
return
await self.hass.async_add_executor_job(self._set_temperature, temperature)
self._attr_target_temperature = temperature
self.async_write_ha_state()
await self.coordinator.async_request_refresh()
def _set_temperature(self, temperature: int) -> None:
"""Set new target temperature."""
temperature = round_temp(temperature)
if self.hvac_mode == HVACMode.COOL:
self.device.t_cool = temperature
elif self.hvac_mode == HVACMode.HEAT:
self.device.t_heat = temperature
elif self.hvac_mode == HVACMode.AUTO:
if self.hvac_action == HVACAction.COOLING:
self.device.t_cool = temperature
elif self.hvac_action == HVACAction.HEATING:
self.device.t_heat = temperature
async def async_set_hvac_mode(self, hvac_mode: HVACMode) -> None:
"""Set operation mode (auto, cool, heat, off)."""
await self.hass.async_add_executor_job(self._set_hvac_mode, hvac_mode)
self._attr_hvac_mode = hvac_mode
self.async_write_ha_state()
await self.coordinator.async_request_refresh()
def _set_hvac_mode(self, hvac_mode: HVACMode) -> None:
"""Set operation mode (auto, cool, heat, off)."""
if hvac_mode in (HVACMode.OFF, HVACMode.AUTO):
self.device.tmode = TEMP_MODE_TO_CODE[hvac_mode]
# Setting t_cool or t_heat automatically changes tmode.
elif hvac_mode == HVACMode.COOL:
self.device.t_cool = self.target_temperature
elif hvac_mode == HVACMode.HEAT:
self.device.t_heat = self.target_temperature
async def async_set_preset_mode(self, preset_mode: str) -> None:
"""Set Preset mode (Home, Alternate, Away, Holiday)."""
if preset_mode not in PRESET_MODES:
raise ValueError(f"{preset_mode} is not a valid preset_mode")
await self.hass.async_add_executor_job(self._set_preset_mode, preset_mode)
self._attr_preset_mode = preset_mode
self.async_write_ha_state()
await self.coordinator.async_request_refresh()
def _set_preset_mode(self, preset_mode: str) -> None:
"""Set Preset mode (Home, Alternate, Away, Holiday)."""
assert isinstance(self.device, radiotherm.thermostat.CT80)
self.device.program_mode = PRESET_MODE_TO_CODE[preset_mode]