core/homeassistant/components/time/__init__.py

111 lines
3.3 KiB
Python

"""Component to allow setting time as platforms."""
from __future__ import annotations
from datetime import time, timedelta
import logging
from typing import final
from propcache import cached_property
import voluptuous as vol
from homeassistant.config_entries import ConfigEntry
from homeassistant.const import ATTR_TIME
from homeassistant.core import HomeAssistant, ServiceCall
from homeassistant.helpers import config_validation as cv
from homeassistant.helpers.entity import Entity, EntityDescription
from homeassistant.helpers.entity_component import EntityComponent
from homeassistant.helpers.typing import ConfigType
from homeassistant.util.hass_dict import HassKey
from .const import DOMAIN, SERVICE_SET_VALUE
_LOGGER = logging.getLogger(__name__)
DATA_COMPONENT: HassKey[EntityComponent[TimeEntity]] = HassKey(DOMAIN)
ENTITY_ID_FORMAT = DOMAIN + ".{}"
PLATFORM_SCHEMA = cv.PLATFORM_SCHEMA
PLATFORM_SCHEMA_BASE = cv.PLATFORM_SCHEMA_BASE
SCAN_INTERVAL = timedelta(seconds=30)
__all__ = ["DOMAIN", "TimeEntity", "TimeEntityDescription"]
async def _async_set_value(entity: TimeEntity, service_call: ServiceCall) -> None:
"""Service call wrapper to set a new date."""
return await entity.async_set_value(service_call.data[ATTR_TIME])
async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
"""Set up Time entities."""
component = hass.data[DATA_COMPONENT] = EntityComponent[TimeEntity](
_LOGGER, DOMAIN, hass, SCAN_INTERVAL
)
await component.async_setup(config)
component.async_register_entity_service(
SERVICE_SET_VALUE, {vol.Required(ATTR_TIME): cv.time}, _async_set_value
)
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 TimeEntityDescription(EntityDescription, frozen_or_thawed=True):
"""A class that describes time entities."""
CACHED_PROPERTIES_WITH_ATTR_ = {"native_value"}
class TimeEntity(Entity, cached_properties=CACHED_PROPERTIES_WITH_ATTR_):
"""Representation of a Time entity."""
entity_description: TimeEntityDescription
_attr_native_value: time | None
_attr_device_class: None = None
_attr_state: None = None
@cached_property
@final
def device_class(self) -> None:
"""Return the device class for the entity."""
return None
@cached_property
@final
def state_attributes(self) -> None:
"""Return the state attributes."""
return None
@property
@final
def state(self) -> str | None:
"""Return the entity state."""
if self.native_value is None:
return None
return self.native_value.isoformat()
@cached_property
def native_value(self) -> time | None:
"""Return the value reported by the time."""
return self._attr_native_value
def set_value(self, value: time) -> None:
"""Change the time."""
raise NotImplementedError
async def async_set_value(self, value: time) -> None:
"""Change the time."""
await self.hass.async_add_executor_job(self.set_value, value)