110 lines
3.1 KiB
Python
110 lines
3.1 KiB
Python
"""Allow users to set and activate scenes."""
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import functools as ft
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import importlib
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import logging
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from typing import Any, Optional
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import voluptuous as vol
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from homeassistant.components.light import ATTR_TRANSITION
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from homeassistant.const import CONF_PLATFORM, SERVICE_TURN_ON
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from homeassistant.core import DOMAIN as HA_DOMAIN
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from homeassistant.helpers.entity import Entity
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from homeassistant.helpers.entity_component import EntityComponent
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# mypy: allow-untyped-defs, no-check-untyped-defs
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DOMAIN = "scene"
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STATE = "scening"
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STATES = "states"
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def _hass_domain_validator(config):
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"""Validate platform in config for homeassistant domain."""
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if CONF_PLATFORM not in config:
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config = {CONF_PLATFORM: HA_DOMAIN, STATES: config}
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return config
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def _platform_validator(config):
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"""Validate it is a valid platform."""
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try:
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platform = importlib.import_module(
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".{}".format(config[CONF_PLATFORM]), __name__
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)
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except ImportError:
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try:
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platform = importlib.import_module(
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"homeassistant.components.{}.scene".format(config[CONF_PLATFORM])
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)
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except ImportError:
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raise vol.Invalid("Invalid platform specified") from None
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if not hasattr(platform, "PLATFORM_SCHEMA"):
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return config
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return platform.PLATFORM_SCHEMA(config)
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PLATFORM_SCHEMA = vol.Schema(
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vol.All(
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_hass_domain_validator,
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vol.Schema({vol.Required(CONF_PLATFORM): str}, extra=vol.ALLOW_EXTRA),
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_platform_validator,
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),
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extra=vol.ALLOW_EXTRA,
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)
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async def async_setup(hass, config):
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"""Set up the scenes."""
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component = hass.data[DOMAIN] = EntityComponent(
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logging.getLogger(__name__), DOMAIN, hass
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)
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await component.async_setup(config)
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# Ensure Home Assistant platform always loaded.
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await component.async_setup_platform(HA_DOMAIN, {"platform": HA_DOMAIN, STATES: []})
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component.async_register_entity_service(
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SERVICE_TURN_ON,
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{ATTR_TRANSITION: vol.All(vol.Coerce(float), vol.Clamp(min=0, max=6553))},
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"async_activate",
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)
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return True
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async def async_setup_entry(hass, entry):
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"""Set up a config entry."""
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return await hass.data[DOMAIN].async_setup_entry(entry)
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async def async_unload_entry(hass, entry):
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"""Unload a config entry."""
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return await hass.data[DOMAIN].async_unload_entry(entry)
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class Scene(Entity):
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"""A scene is a group of entities and the states we want them to be."""
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@property
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def should_poll(self) -> bool:
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"""No polling needed."""
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return False
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@property
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def state(self) -> Optional[str]:
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"""Return the state of the scene."""
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return STATE
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def activate(self, **kwargs: Any) -> None:
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"""Activate scene. Try to get entities into requested state."""
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raise NotImplementedError()
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async def async_activate(self, **kwargs: Any) -> None:
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"""Activate scene. Try to get entities into requested state."""
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task = self.hass.async_add_job(ft.partial(self.activate, **kwargs))
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if task:
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await task
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