core/homeassistant/components/generic_hygrostat/humidifier.py

589 lines
20 KiB
Python

"""Adds support for generic hygrostat units."""
from __future__ import annotations
import asyncio
from collections.abc import Callable, Mapping
from datetime import datetime, timedelta
import logging
from typing import TYPE_CHECKING, Any, cast
from homeassistant.components.humidifier import (
ATTR_HUMIDITY,
MODE_AWAY,
MODE_NORMAL,
PLATFORM_SCHEMA as HUMIDIFIER_PLATFORM_SCHEMA,
HumidifierAction,
HumidifierDeviceClass,
HumidifierEntity,
HumidifierEntityFeature,
)
from homeassistant.config_entries import ConfigEntry
from homeassistant.const import (
ATTR_ENTITY_ID,
ATTR_MODE,
CONF_NAME,
CONF_UNIQUE_ID,
EVENT_HOMEASSISTANT_START,
SERVICE_TURN_OFF,
SERVICE_TURN_ON,
STATE_OFF,
STATE_ON,
STATE_UNAVAILABLE,
STATE_UNKNOWN,
)
from homeassistant.core import (
DOMAIN as HOMEASSISTANT_DOMAIN,
Event,
EventStateChangedData,
EventStateReportedData,
HomeAssistant,
State,
callback,
)
from homeassistant.helpers import condition, config_validation as cv
from homeassistant.helpers.device import async_device_info_to_link_from_entity
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from homeassistant.helpers.event import (
async_track_state_change_event,
async_track_state_report_event,
async_track_time_interval,
)
from homeassistant.helpers.restore_state import RestoreEntity
from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
from . import (
CONF_AWAY_FIXED,
CONF_AWAY_HUMIDITY,
CONF_DEVICE_CLASS,
CONF_DRY_TOLERANCE,
CONF_HUMIDIFIER,
CONF_INITIAL_STATE,
CONF_KEEP_ALIVE,
CONF_MAX_HUMIDITY,
CONF_MIN_DUR,
CONF_MIN_HUMIDITY,
CONF_SENSOR,
CONF_STALE_DURATION,
CONF_TARGET_HUMIDITY,
CONF_WET_TOLERANCE,
HYGROSTAT_SCHEMA,
)
_LOGGER = logging.getLogger(__name__)
ATTR_SAVED_HUMIDITY = "saved_humidity"
PLATFORM_SCHEMA = HUMIDIFIER_PLATFORM_SCHEMA.extend(HYGROSTAT_SCHEMA.schema)
async def async_setup_platform(
hass: HomeAssistant,
config: ConfigType,
async_add_entities: AddEntitiesCallback,
discovery_info: DiscoveryInfoType | None = None,
) -> None:
"""Set up the generic hygrostat platform."""
if discovery_info:
config = discovery_info
await _async_setup_config(
hass, config, config.get(CONF_UNIQUE_ID), async_add_entities
)
async def async_setup_entry(
hass: HomeAssistant,
config_entry: ConfigEntry,
async_add_entities: AddEntitiesCallback,
) -> None:
"""Initialize config entry."""
await _async_setup_config(
hass,
config_entry.options,
config_entry.entry_id,
async_add_entities,
)
def _time_period_or_none(value: Any) -> timedelta | None:
if value is None:
return None
return cast(timedelta, cv.time_period(value))
async def _async_setup_config(
hass: HomeAssistant,
config: Mapping[str, Any],
unique_id: str | None,
async_add_entities: AddEntitiesCallback,
) -> None:
name: str = config[CONF_NAME]
switch_entity_id: str = config[CONF_HUMIDIFIER]
sensor_entity_id: str = config[CONF_SENSOR]
min_humidity: float | None = config.get(CONF_MIN_HUMIDITY)
max_humidity: float | None = config.get(CONF_MAX_HUMIDITY)
target_humidity: float | None = config.get(CONF_TARGET_HUMIDITY)
device_class: HumidifierDeviceClass | None = config.get(CONF_DEVICE_CLASS)
min_cycle_duration: timedelta | None = _time_period_or_none(
config.get(CONF_MIN_DUR)
)
sensor_stale_duration: timedelta | None = _time_period_or_none(
config.get(CONF_STALE_DURATION)
)
dry_tolerance: float = config[CONF_DRY_TOLERANCE]
wet_tolerance: float = config[CONF_WET_TOLERANCE]
keep_alive: timedelta | None = _time_period_or_none(config.get(CONF_KEEP_ALIVE))
initial_state: bool | None = config.get(CONF_INITIAL_STATE)
away_humidity: int | None = config.get(CONF_AWAY_HUMIDITY)
away_fixed: bool | None = config.get(CONF_AWAY_FIXED)
async_add_entities(
[
GenericHygrostat(
hass,
name,
switch_entity_id,
sensor_entity_id,
min_humidity,
max_humidity,
target_humidity,
device_class,
min_cycle_duration,
dry_tolerance,
wet_tolerance,
keep_alive,
initial_state,
away_humidity,
away_fixed,
sensor_stale_duration,
unique_id,
)
]
)
class GenericHygrostat(HumidifierEntity, RestoreEntity):
"""Representation of a Generic Hygrostat device."""
_attr_should_poll = False
def __init__(
self,
hass: HomeAssistant,
name: str,
switch_entity_id: str,
sensor_entity_id: str,
min_humidity: float | None,
max_humidity: float | None,
target_humidity: float | None,
device_class: HumidifierDeviceClass | None,
min_cycle_duration: timedelta | None,
dry_tolerance: float,
wet_tolerance: float,
keep_alive: timedelta | None,
initial_state: bool | None,
away_humidity: int | None,
away_fixed: bool | None,
sensor_stale_duration: timedelta | None,
unique_id: str | None,
) -> None:
"""Initialize the hygrostat."""
self._name = name
self._switch_entity_id = switch_entity_id
self._sensor_entity_id = sensor_entity_id
self._attr_device_info = async_device_info_to_link_from_entity(
hass,
switch_entity_id,
)
self._device_class = device_class or HumidifierDeviceClass.HUMIDIFIER
self._min_cycle_duration = min_cycle_duration
self._dry_tolerance = dry_tolerance
self._wet_tolerance = wet_tolerance
self._keep_alive = keep_alive
self._state = initial_state
self._saved_target_humidity = away_humidity or target_humidity
self._active = False
self._cur_humidity: float | None = None
self._humidity_lock = asyncio.Lock()
self._min_humidity = min_humidity
self._max_humidity = max_humidity
self._target_humidity = target_humidity
if away_humidity:
self._attr_supported_features |= HumidifierEntityFeature.MODES
self._away_humidity = away_humidity
self._away_fixed = away_fixed
self._sensor_stale_duration = sensor_stale_duration
self._remove_stale_tracking: Callable[[], None] | None = None
self._is_away = False
self._attr_action = HumidifierAction.IDLE
self._attr_unique_id = unique_id
async def async_added_to_hass(self) -> None:
"""Run when entity about to be added."""
await super().async_added_to_hass()
self.async_on_remove(
async_track_state_change_event(
self.hass, self._sensor_entity_id, self._async_sensor_event
)
)
self.async_on_remove(
async_track_state_report_event(
self.hass, self._sensor_entity_id, self._async_sensor_event
)
)
self.async_on_remove(
async_track_state_change_event(
self.hass, self._switch_entity_id, self._async_switch_event
)
)
if self._keep_alive:
self.async_on_remove(
async_track_time_interval(
self.hass, self._async_operate, self._keep_alive
)
)
async def _async_startup(event: Event | None) -> None:
"""Init on startup."""
sensor_state = self.hass.states.get(self._sensor_entity_id)
if sensor_state is None or sensor_state.state in (
STATE_UNKNOWN,
STATE_UNAVAILABLE,
):
_LOGGER.debug(
"The sensor state is %s, initialization is delayed",
sensor_state.state if sensor_state is not None else "None",
)
return
await self._async_sensor_update(sensor_state)
self.hass.bus.async_listen_once(EVENT_HOMEASSISTANT_START, _async_startup)
if (old_state := await self.async_get_last_state()) is not None:
if old_state.attributes.get(ATTR_MODE) == MODE_AWAY:
self._is_away = True
self._saved_target_humidity = self._target_humidity
self._target_humidity = self._away_humidity or self._target_humidity
if old_state.attributes.get(ATTR_HUMIDITY):
self._target_humidity = int(old_state.attributes[ATTR_HUMIDITY])
if old_state.attributes.get(ATTR_SAVED_HUMIDITY):
self._saved_target_humidity = int(
old_state.attributes[ATTR_SAVED_HUMIDITY]
)
if old_state.state:
self._state = old_state.state == STATE_ON
if self._target_humidity is None:
if self._device_class == HumidifierDeviceClass.HUMIDIFIER:
self._target_humidity = self.min_humidity
else:
self._target_humidity = self.max_humidity
_LOGGER.warning(
"No previously saved humidity, setting to %s", self._target_humidity
)
if self._state is None:
self._state = False
await _async_startup(None) # init the sensor
async def async_will_remove_from_hass(self) -> None:
"""Run when entity will be removed from hass."""
if self._remove_stale_tracking:
self._remove_stale_tracking()
return await super().async_will_remove_from_hass()
@property
def available(self) -> bool:
"""Return True if entity is available."""
return self._active
@property
def extra_state_attributes(self) -> dict[str, Any] | None:
"""Return the optional state attributes."""
if self._saved_target_humidity:
return {ATTR_SAVED_HUMIDITY: self._saved_target_humidity}
return None
@property
def name(self) -> str:
"""Return the name of the hygrostat."""
return self._name
@property
def is_on(self) -> bool | None:
"""Return true if the hygrostat is on."""
return self._state
@property
def current_humidity(self) -> float | None:
"""Return the measured humidity."""
return self._cur_humidity
@property
def target_humidity(self) -> float | None:
"""Return the humidity we try to reach."""
return self._target_humidity
@property
def mode(self) -> str | None:
"""Return the current mode."""
if self._away_humidity is None:
return None
if self._is_away:
return MODE_AWAY
return MODE_NORMAL
@property
def available_modes(self) -> list[str] | None:
"""Return a list of available modes."""
if self._away_humidity:
return [MODE_NORMAL, MODE_AWAY]
return None
@property
def device_class(self) -> HumidifierDeviceClass:
"""Return the device class of the humidifier."""
return self._device_class
async def async_turn_on(self, **kwargs: Any) -> None:
"""Turn hygrostat on."""
if not self._active:
return
self._state = True
await self._async_operate(force=True)
self.async_write_ha_state()
async def async_turn_off(self, **kwargs: Any) -> None:
"""Turn hygrostat off."""
if not self._active:
return
self._state = False
if self._is_device_active:
await self._async_device_turn_off()
self.async_write_ha_state()
async def async_set_humidity(self, humidity: int) -> None:
"""Set new target humidity."""
if humidity is None:
return # type: ignore[unreachable]
if self._is_away and self._away_fixed:
self._saved_target_humidity = humidity
self.async_write_ha_state()
return
self._target_humidity = humidity
await self._async_operate()
self.async_write_ha_state()
@property
def min_humidity(self) -> float:
"""Return the minimum humidity."""
if self._min_humidity:
return self._min_humidity
# get default humidity from super class
return super().min_humidity
@property
def max_humidity(self) -> float:
"""Return the maximum humidity."""
if self._max_humidity:
return self._max_humidity
# Get default humidity from super class
return super().max_humidity
async def _async_sensor_event(
self, event: Event[EventStateChangedData] | Event[EventStateReportedData]
) -> None:
"""Handle ambient humidity changes."""
new_state = event.data["new_state"]
if new_state is None:
return
await self._async_sensor_update(new_state)
async def _async_sensor_update(self, new_state: State) -> None:
"""Update state based on humidity sensor."""
if self._sensor_stale_duration:
if self._remove_stale_tracking:
self._remove_stale_tracking()
self._remove_stale_tracking = async_track_time_interval(
self.hass,
self._async_sensor_not_responding,
self._sensor_stale_duration,
)
await self._async_update_humidity(new_state.state)
await self._async_operate()
self.async_write_ha_state()
async def _async_sensor_not_responding(self, now: datetime | None = None) -> None:
"""Handle sensor stale event."""
state = self.hass.states.get(self._sensor_entity_id)
_LOGGER.debug(
"Sensor has not been updated for %s",
now - state.last_reported if now and state else "---",
)
_LOGGER.warning("Sensor is stalled, call the emergency stop")
await self._async_update_humidity("Stalled")
@callback
def _async_switch_event(self, event: Event[EventStateChangedData]) -> None:
"""Handle humidifier switch state changes."""
self._async_switch_changed(event.data["new_state"])
@callback
def _async_switch_changed(self, new_state: State | None) -> None:
"""Handle humidifier switch state changes."""
if new_state is None:
return
if new_state.state == STATE_ON:
if self._device_class == HumidifierDeviceClass.DEHUMIDIFIER:
self._attr_action = HumidifierAction.DRYING
else:
self._attr_action = HumidifierAction.HUMIDIFYING
else:
self._attr_action = HumidifierAction.IDLE
self.async_write_ha_state()
async def _async_update_humidity(self, humidity: str) -> None:
"""Update hygrostat with latest state from sensor."""
try:
self._cur_humidity = float(humidity)
except ValueError as ex:
if self._active:
_LOGGER.warning("Unable to update from sensor: %s", ex)
self._active = False
else:
_LOGGER.debug("Unable to update from sensor: %s", ex)
self._cur_humidity = None
if self._is_device_active:
await self._async_device_turn_off()
async def _async_operate(
self, time: datetime | None = None, force: bool = False
) -> None:
"""Check if we need to turn humidifying on or off."""
async with self._humidity_lock:
if not self._active and None not in (
self._cur_humidity,
self._target_humidity,
):
self._active = True
force = True
_LOGGER.debug(
(
"Obtained current and target humidity. "
"Generic hygrostat active. %s, %s"
),
self._cur_humidity,
self._target_humidity,
)
if not self._active or not self._state:
return
if not force and time is None:
# If the `force` argument is True, we
# ignore `min_cycle_duration`.
# If the `time` argument is not none, we were invoked for
# keep-alive purposes, and `min_cycle_duration` is irrelevant.
if self._min_cycle_duration:
if self._is_device_active:
current_state = STATE_ON
else:
current_state = STATE_OFF
long_enough = condition.state(
self.hass,
self._switch_entity_id,
current_state,
self._min_cycle_duration,
)
if not long_enough:
return
if force:
# Ignore the tolerance when switched on manually
dry_tolerance: float = 0
wet_tolerance: float = 0
else:
dry_tolerance = self._dry_tolerance
wet_tolerance = self._wet_tolerance
if TYPE_CHECKING:
assert self._target_humidity is not None
assert self._cur_humidity is not None
too_dry = self._target_humidity - self._cur_humidity >= dry_tolerance
too_wet = self._cur_humidity - self._target_humidity >= wet_tolerance
if self._is_device_active:
if (
self._device_class == HumidifierDeviceClass.HUMIDIFIER and too_wet
) or (
self._device_class == HumidifierDeviceClass.DEHUMIDIFIER and too_dry
):
_LOGGER.debug("Turning off humidifier %s", self._switch_entity_id)
await self._async_device_turn_off()
elif time is not None:
# The time argument is passed only in keep-alive case
await self._async_device_turn_on()
elif (
self._device_class == HumidifierDeviceClass.HUMIDIFIER and too_dry
) or (self._device_class == HumidifierDeviceClass.DEHUMIDIFIER and too_wet):
_LOGGER.debug("Turning on humidifier %s", self._switch_entity_id)
await self._async_device_turn_on()
elif time is not None:
# The time argument is passed only in keep-alive case
await self._async_device_turn_off()
@property
def _is_device_active(self) -> bool:
"""If the toggleable device is currently active."""
return self.hass.states.is_state(self._switch_entity_id, STATE_ON)
async def _async_device_turn_on(self) -> None:
"""Turn humidifier toggleable device on."""
data = {ATTR_ENTITY_ID: self._switch_entity_id}
await self.hass.services.async_call(HOMEASSISTANT_DOMAIN, SERVICE_TURN_ON, data)
async def _async_device_turn_off(self) -> None:
"""Turn humidifier toggleable device off."""
data = {ATTR_ENTITY_ID: self._switch_entity_id}
await self.hass.services.async_call(
HOMEASSISTANT_DOMAIN, SERVICE_TURN_OFF, data
)
async def async_set_mode(self, mode: str) -> None:
"""Set new mode.
This method must be run in the event loop and returns a coroutine.
"""
if self._away_humidity is None:
return
if mode == MODE_AWAY and not self._is_away:
self._is_away = True
if not self._saved_target_humidity:
self._saved_target_humidity = self._away_humidity
self._saved_target_humidity, self._target_humidity = (
self._target_humidity,
self._saved_target_humidity,
)
await self._async_operate(force=True)
elif mode == MODE_NORMAL and self._is_away:
self._is_away = False
self._saved_target_humidity, self._target_humidity = (
self._target_humidity,
self._saved_target_humidity,
)
await self._async_operate(force=True)
self.async_write_ha_state()