core/homeassistant/components/zone/trigger.py

137 lines
3.9 KiB
Python

"""Offer zone automation rules."""
from __future__ import annotations
import logging
import voluptuous as vol
from homeassistant.const import (
ATTR_FRIENDLY_NAME,
CONF_ENTITY_ID,
CONF_EVENT,
CONF_PLATFORM,
CONF_ZONE,
)
from homeassistant.core import (
CALLBACK_TYPE,
Event,
EventStateChangedData,
HassJob,
HomeAssistant,
callback,
)
from homeassistant.helpers import (
condition,
config_validation as cv,
entity_registry as er,
location,
)
from homeassistant.helpers.event import async_track_state_change_event
from homeassistant.helpers.trigger import TriggerActionType, TriggerInfo
from homeassistant.helpers.typing import ConfigType
EVENT_ENTER = "enter"
EVENT_LEAVE = "leave"
DEFAULT_EVENT = EVENT_ENTER
_LOGGER = logging.getLogger(__name__)
_EVENT_DESCRIPTION = {EVENT_ENTER: "entering", EVENT_LEAVE: "leaving"}
_TRIGGER_SCHEMA = cv.TRIGGER_BASE_SCHEMA.extend(
{
vol.Required(CONF_PLATFORM): "zone",
vol.Required(CONF_ENTITY_ID): cv.entity_ids_or_uuids,
vol.Required(CONF_ZONE): cv.entity_id,
vol.Required(CONF_EVENT, default=DEFAULT_EVENT): vol.Any(
EVENT_ENTER, EVENT_LEAVE
),
}
)
async def async_validate_trigger_config(
hass: HomeAssistant, config: ConfigType
) -> ConfigType:
"""Validate trigger config."""
config = _TRIGGER_SCHEMA(config)
registry = er.async_get(hass)
config[CONF_ENTITY_ID] = er.async_validate_entity_ids(
registry, config[CONF_ENTITY_ID]
)
return config
async def async_attach_trigger(
hass: HomeAssistant,
config: ConfigType,
action: TriggerActionType,
trigger_info: TriggerInfo,
*,
platform_type: str = "zone",
) -> CALLBACK_TYPE:
"""Listen for state changes based on configuration."""
trigger_data = trigger_info["trigger_data"]
entity_id: list[str] = config[CONF_ENTITY_ID]
zone_entity_id: str = config[CONF_ZONE]
event: str = config[CONF_EVENT]
job = HassJob(action)
@callback
def zone_automation_listener(zone_event: Event[EventStateChangedData]) -> None:
"""Listen for state changes and calls action."""
entity = zone_event.data["entity_id"]
from_s = zone_event.data["old_state"]
to_s = zone_event.data["new_state"]
if (
from_s
and not location.has_location(from_s)
or to_s
and not location.has_location(to_s)
):
return
if not (zone_state := hass.states.get(zone_entity_id)):
_LOGGER.warning(
(
"Automation '%s' is referencing non-existing zone '%s' in a zone"
" trigger"
),
trigger_info["name"],
zone_entity_id,
)
return
from_match = condition.zone(hass, zone_state, from_s) if from_s else False
to_match = condition.zone(hass, zone_state, to_s) if to_s else False
if (
event == EVENT_ENTER
and not from_match
and to_match
or event == EVENT_LEAVE
and from_match
and not to_match
):
description = f"{entity} {_EVENT_DESCRIPTION[event]} {zone_state.attributes[ATTR_FRIENDLY_NAME]}"
hass.async_run_hass_job(
job,
{
"trigger": {
**trigger_data,
"platform": platform_type,
"entity_id": entity,
"from_state": from_s,
"to_state": to_s,
"zone": zone_state,
"event": event,
"description": description,
}
},
to_s.context if to_s else None,
)
return async_track_state_change_event(hass, entity_id, zone_automation_listener)