core/homeassistant/components/automation/geo_location.py

69 lines
2.6 KiB
Python

"""Offer geolocation automation rules."""
import voluptuous as vol
from homeassistant.components.geo_location import DOMAIN
from homeassistant.core import callback
from homeassistant.const import (
CONF_EVENT, CONF_PLATFORM, CONF_SOURCE, CONF_ZONE, EVENT_STATE_CHANGED)
from homeassistant.helpers import (
condition, config_validation as cv)
from homeassistant.helpers.config_validation import entity_domain
EVENT_ENTER = 'enter'
EVENT_LEAVE = 'leave'
DEFAULT_EVENT = EVENT_ENTER
TRIGGER_SCHEMA = vol.Schema({
vol.Required(CONF_PLATFORM): 'geo_location',
vol.Required(CONF_SOURCE): cv.string,
vol.Required(CONF_ZONE): entity_domain('zone'),
vol.Required(CONF_EVENT, default=DEFAULT_EVENT):
vol.Any(EVENT_ENTER, EVENT_LEAVE),
})
def source_match(state, source):
"""Check if the state matches the provided source."""
return state and state.attributes.get('source') == source
async def async_trigger(hass, config, action, automation_info):
"""Listen for state changes based on configuration."""
source = config.get(CONF_SOURCE).lower()
zone_entity_id = config.get(CONF_ZONE)
trigger_event = config.get(CONF_EVENT)
@callback
def state_change_listener(event):
"""Handle specific state changes."""
# Skip if the event is not a geo_location entity.
if not event.data.get('entity_id').startswith(DOMAIN):
return
# Skip if the event's source does not match the trigger's source.
from_state = event.data.get('old_state')
to_state = event.data.get('new_state')
if not source_match(from_state, source) \
and not source_match(to_state, source):
return
zone_state = hass.states.get(zone_entity_id)
from_match = condition.zone(hass, zone_state, from_state)
to_match = condition.zone(hass, zone_state, to_state)
# pylint: disable=too-many-boolean-expressions
if trigger_event == EVENT_ENTER and not from_match and to_match or \
trigger_event == EVENT_LEAVE and from_match and not to_match:
hass.async_run_job(action({
'trigger': {
'platform': 'geo_location',
'source': source,
'entity_id': event.data.get('entity_id'),
'from_state': from_state,
'to_state': to_state,
'zone': zone_state,
'event': trigger_event,
},
}, context=event.context))
return hass.bus.async_listen(EVENT_STATE_CHANGED, state_change_listener)