core/homeassistant/components/automation/homeassistant.py

49 lines
1.4 KiB
Python

"""Offer Home Assistant core automation rules."""
import logging
import voluptuous as vol
from homeassistant.const import CONF_EVENT, CONF_PLATFORM, EVENT_HOMEASSISTANT_STOP
from homeassistant.core import callback
# mypy: allow-untyped-defs
EVENT_START = "start"
EVENT_SHUTDOWN = "shutdown"
_LOGGER = logging.getLogger(__name__)
TRIGGER_SCHEMA = vol.Schema(
{
vol.Required(CONF_PLATFORM): "homeassistant",
vol.Required(CONF_EVENT): vol.Any(EVENT_START, EVENT_SHUTDOWN),
}
)
async def async_attach_trigger(hass, config, action, automation_info):
"""Listen for events based on configuration."""
event = config.get(CONF_EVENT)
if event == EVENT_SHUTDOWN:
@callback
def hass_shutdown(event):
"""Execute when Home Assistant is shutting down."""
hass.async_run_job(
action(
{"trigger": {"platform": "homeassistant", "event": event}},
context=event.context,
)
)
return hass.bus.async_listen_once(EVENT_HOMEASSISTANT_STOP, hass_shutdown)
# Automation are enabled while hass is starting up, fire right away
# Check state because a config reload shouldn't trigger it.
if automation_info["home_assistant_start"]:
hass.async_run_job(
action({"trigger": {"platform": "homeassistant", "event": event}})
)
return lambda: None