core/homeassistant/components/switch/__init__.py

135 lines
4.1 KiB
Python

"""Component to interface with switches that can be controlled remotely."""
from __future__ import annotations
from datetime import timedelta
from enum import StrEnum
from functools import partial
import logging
from propcache import cached_property
import voluptuous as vol
from homeassistant.config_entries import ConfigEntry
from homeassistant.const import (
SERVICE_TOGGLE,
SERVICE_TURN_OFF,
SERVICE_TURN_ON,
STATE_ON,
)
from homeassistant.core import HomeAssistant
from homeassistant.helpers import config_validation as cv
from homeassistant.helpers.deprecation import (
DeprecatedConstantEnum,
all_with_deprecated_constants,
check_if_deprecated_constant,
dir_with_deprecated_constants,
)
from homeassistant.helpers.entity import ToggleEntity, ToggleEntityDescription
from homeassistant.helpers.entity_component import EntityComponent
from homeassistant.helpers.typing import ConfigType
from homeassistant.loader import bind_hass
from homeassistant.util.hass_dict import HassKey
from .const import DOMAIN
_LOGGER = logging.getLogger(__name__)
DATA_COMPONENT: HassKey[EntityComponent[SwitchEntity]] = HassKey(DOMAIN)
ENTITY_ID_FORMAT = DOMAIN + ".{}"
PLATFORM_SCHEMA = cv.PLATFORM_SCHEMA
PLATFORM_SCHEMA_BASE = cv.PLATFORM_SCHEMA_BASE
SCAN_INTERVAL = timedelta(seconds=30)
MIN_TIME_BETWEEN_SCANS = timedelta(seconds=10)
class SwitchDeviceClass(StrEnum):
"""Device class for switches."""
OUTLET = "outlet"
SWITCH = "switch"
DEVICE_CLASSES_SCHEMA = vol.All(vol.Lower, vol.Coerce(SwitchDeviceClass))
# DEVICE_CLASS* below are deprecated as of 2021.12
# use the SwitchDeviceClass enum instead.
DEVICE_CLASSES = [cls.value for cls in SwitchDeviceClass]
_DEPRECATED_DEVICE_CLASS_OUTLET = DeprecatedConstantEnum(
SwitchDeviceClass.OUTLET, "2025.1"
)
_DEPRECATED_DEVICE_CLASS_SWITCH = DeprecatedConstantEnum(
SwitchDeviceClass.SWITCH, "2025.1"
)
# mypy: disallow-any-generics
@bind_hass
def is_on(hass: HomeAssistant, entity_id: str) -> bool:
"""Return if the switch is on based on the statemachine.
Async friendly.
"""
return hass.states.is_state(entity_id, STATE_ON)
async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
"""Track states and offer events for switches."""
component = hass.data[DATA_COMPONENT] = EntityComponent[SwitchEntity](
_LOGGER, DOMAIN, hass, SCAN_INTERVAL
)
await component.async_setup(config)
component.async_register_entity_service(SERVICE_TURN_OFF, None, "async_turn_off")
component.async_register_entity_service(SERVICE_TURN_ON, None, "async_turn_on")
component.async_register_entity_service(SERVICE_TOGGLE, None, "async_toggle")
return True
async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
"""Set up a config entry."""
return await hass.data[DATA_COMPONENT].async_setup_entry(entry)
async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
"""Unload a config entry."""
return await hass.data[DATA_COMPONENT].async_unload_entry(entry)
class SwitchEntityDescription(ToggleEntityDescription, frozen_or_thawed=True):
"""A class that describes switch entities."""
device_class: SwitchDeviceClass | None = None
CACHED_PROPERTIES_WITH_ATTR_ = {
"device_class",
}
class SwitchEntity(ToggleEntity, cached_properties=CACHED_PROPERTIES_WITH_ATTR_):
"""Base class for switch entities."""
entity_description: SwitchEntityDescription
_attr_device_class: SwitchDeviceClass | None
@cached_property
def device_class(self) -> SwitchDeviceClass | None:
"""Return the class of this entity."""
if hasattr(self, "_attr_device_class"):
return self._attr_device_class
if hasattr(self, "entity_description"):
return self.entity_description.device_class
return None
# These can be removed if no deprecated constant are in this module anymore
__getattr__ = partial(check_if_deprecated_constant, module_globals=globals())
__dir__ = partial(
dir_with_deprecated_constants, module_globals_keys=[*globals().keys()]
)
__all__ = all_with_deprecated_constants(globals())