764 lines
24 KiB
Python
764 lines
24 KiB
Python
"""Allow to set up simple automation rules via the config file."""
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from __future__ import annotations
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import logging
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from typing import Any, Awaitable, Callable, Dict, cast
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import voluptuous as vol
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from voluptuous.humanize import humanize_error
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from homeassistant.components import blueprint
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from homeassistant.const import (
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ATTR_ENTITY_ID,
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ATTR_MODE,
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ATTR_NAME,
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CONF_ALIAS,
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CONF_CONDITION,
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CONF_DEVICE_ID,
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CONF_ENTITY_ID,
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CONF_ID,
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CONF_MODE,
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CONF_PLATFORM,
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CONF_VARIABLES,
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CONF_ZONE,
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EVENT_HOMEASSISTANT_STARTED,
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SERVICE_RELOAD,
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SERVICE_TOGGLE,
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SERVICE_TURN_OFF,
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SERVICE_TURN_ON,
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STATE_ON,
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)
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from homeassistant.core import (
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Context,
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CoreState,
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HomeAssistant,
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callback,
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split_entity_id,
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)
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from homeassistant.exceptions import (
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ConditionError,
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ConditionErrorContainer,
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ConditionErrorIndex,
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HomeAssistantError,
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)
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from homeassistant.helpers import condition, extract_domain_configs, template
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import homeassistant.helpers.config_validation as cv
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from homeassistant.helpers.entity import ToggleEntity
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from homeassistant.helpers.entity_component import EntityComponent
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from homeassistant.helpers.restore_state import RestoreEntity
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from homeassistant.helpers.script import (
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ATTR_CUR,
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ATTR_MAX,
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CONF_MAX,
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CONF_MAX_EXCEEDED,
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Script,
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)
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from homeassistant.helpers.script_variables import ScriptVariables
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from homeassistant.helpers.service import async_register_admin_service
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from homeassistant.helpers.trace import (
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TraceElement,
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script_execution_set,
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trace_append_element,
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trace_get,
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trace_path,
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)
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from homeassistant.helpers.trigger import async_initialize_triggers
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from homeassistant.helpers.typing import TemplateVarsType
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from homeassistant.loader import bind_hass
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from homeassistant.util.dt import parse_datetime
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from .config import AutomationConfig, async_validate_config_item
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# Not used except by packages to check config structure
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from .config import PLATFORM_SCHEMA # noqa: F401
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from .const import (
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CONF_ACTION,
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CONF_INITIAL_STATE,
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CONF_TRIGGER,
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CONF_TRIGGER_VARIABLES,
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DEFAULT_INITIAL_STATE,
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DOMAIN,
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LOGGER,
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)
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from .helpers import async_get_blueprints
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from .trace import trace_automation
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# mypy: allow-untyped-calls, allow-untyped-defs
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# mypy: no-check-untyped-defs, no-warn-return-any
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ENTITY_ID_FORMAT = DOMAIN + ".{}"
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CONF_SKIP_CONDITION = "skip_condition"
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CONF_STOP_ACTIONS = "stop_actions"
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DEFAULT_STOP_ACTIONS = True
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EVENT_AUTOMATION_RELOADED = "automation_reloaded"
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EVENT_AUTOMATION_TRIGGERED = "automation_triggered"
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ATTR_LAST_TRIGGERED = "last_triggered"
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ATTR_SOURCE = "source"
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ATTR_VARIABLES = "variables"
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SERVICE_TRIGGER = "trigger"
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_LOGGER = logging.getLogger(__name__)
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AutomationActionType = Callable[[HomeAssistant, TemplateVarsType], Awaitable[None]]
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@bind_hass
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def is_on(hass, entity_id):
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"""
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Return true if specified automation entity_id is on.
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Async friendly.
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"""
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return hass.states.is_state(entity_id, STATE_ON)
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@callback
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def automations_with_entity(hass: HomeAssistant, entity_id: str) -> list[str]:
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"""Return all automations that reference the entity."""
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if DOMAIN not in hass.data:
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return []
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component = hass.data[DOMAIN]
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return [
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automation_entity.entity_id
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for automation_entity in component.entities
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if entity_id in automation_entity.referenced_entities
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]
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@callback
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def entities_in_automation(hass: HomeAssistant, entity_id: str) -> list[str]:
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"""Return all entities in a scene."""
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if DOMAIN not in hass.data:
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return []
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component = hass.data[DOMAIN]
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automation_entity = component.get_entity(entity_id)
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if automation_entity is None:
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return []
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return list(automation_entity.referenced_entities)
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@callback
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def automations_with_device(hass: HomeAssistant, device_id: str) -> list[str]:
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"""Return all automations that reference the device."""
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if DOMAIN not in hass.data:
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return []
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component = hass.data[DOMAIN]
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return [
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automation_entity.entity_id
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for automation_entity in component.entities
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if device_id in automation_entity.referenced_devices
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]
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@callback
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def devices_in_automation(hass: HomeAssistant, entity_id: str) -> list[str]:
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"""Return all devices in a scene."""
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if DOMAIN not in hass.data:
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return []
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component = hass.data[DOMAIN]
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automation_entity = component.get_entity(entity_id)
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if automation_entity is None:
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return []
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return list(automation_entity.referenced_devices)
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@callback
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def automations_with_area(hass: HomeAssistant, area_id: str) -> list[str]:
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"""Return all automations that reference the area."""
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if DOMAIN not in hass.data:
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return []
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component = hass.data[DOMAIN]
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return [
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automation_entity.entity_id
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for automation_entity in component.entities
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if area_id in automation_entity.referenced_areas
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]
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@callback
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def areas_in_automation(hass: HomeAssistant, entity_id: str) -> list[str]:
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"""Return all areas in an automation."""
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if DOMAIN not in hass.data:
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return []
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component = hass.data[DOMAIN]
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automation_entity = component.get_entity(entity_id)
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if automation_entity is None:
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return []
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return list(automation_entity.referenced_areas)
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async def async_setup(hass, config):
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"""Set up all automations."""
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# Local import to avoid circular import
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hass.data[DOMAIN] = component = EntityComponent(LOGGER, DOMAIN, hass)
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# To register the automation blueprints
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async_get_blueprints(hass)
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if not await _async_process_config(hass, config, component):
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await async_get_blueprints(hass).async_populate()
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async def trigger_service_handler(entity, service_call):
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"""Handle forced automation trigger, e.g. from frontend."""
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await entity.async_trigger(
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{**service_call.data[ATTR_VARIABLES], "trigger": {"platform": None}},
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skip_condition=service_call.data[CONF_SKIP_CONDITION],
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context=service_call.context,
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)
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component.async_register_entity_service(
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SERVICE_TRIGGER,
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{
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vol.Optional(ATTR_VARIABLES, default={}): dict,
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vol.Optional(CONF_SKIP_CONDITION, default=True): bool,
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},
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trigger_service_handler,
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)
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component.async_register_entity_service(SERVICE_TOGGLE, {}, "async_toggle")
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component.async_register_entity_service(SERVICE_TURN_ON, {}, "async_turn_on")
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component.async_register_entity_service(
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SERVICE_TURN_OFF,
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{vol.Optional(CONF_STOP_ACTIONS, default=DEFAULT_STOP_ACTIONS): cv.boolean},
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"async_turn_off",
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)
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async def reload_service_handler(service_call):
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"""Remove all automations and load new ones from config."""
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conf = await component.async_prepare_reload()
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if conf is None:
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return
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async_get_blueprints(hass).async_reset_cache()
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await _async_process_config(hass, conf, component)
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hass.bus.async_fire(EVENT_AUTOMATION_RELOADED, context=service_call.context)
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async_register_admin_service(
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hass, DOMAIN, SERVICE_RELOAD, reload_service_handler, schema=vol.Schema({})
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)
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return True
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class AutomationEntity(ToggleEntity, RestoreEntity):
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"""Entity to show status of entity."""
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def __init__(
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self,
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automation_id,
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name,
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trigger_config,
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cond_func,
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action_script,
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initial_state,
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variables,
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trigger_variables,
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raw_config,
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blueprint_inputs,
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):
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"""Initialize an automation entity."""
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self._id = automation_id
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self._name = name
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self._trigger_config = trigger_config
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self._async_detach_triggers = None
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self._cond_func = cond_func
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self.action_script = action_script
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self.action_script.change_listener = self.async_write_ha_state
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self._initial_state = initial_state
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self._is_enabled = False
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self._referenced_entities: set[str] | None = None
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self._referenced_devices: set[str] | None = None
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self._logger = LOGGER
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self._variables: ScriptVariables = variables
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self._trigger_variables: ScriptVariables = trigger_variables
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self._raw_config = raw_config
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self._blueprint_inputs = blueprint_inputs
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@property
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def name(self):
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"""Name of the automation."""
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return self._name
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@property
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def unique_id(self):
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"""Return unique ID."""
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return self._id
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@property
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def should_poll(self):
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"""No polling needed for automation entities."""
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return False
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@property
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def extra_state_attributes(self):
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"""Return the entity state attributes."""
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attrs = {
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ATTR_LAST_TRIGGERED: self.action_script.last_triggered,
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ATTR_MODE: self.action_script.script_mode,
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ATTR_CUR: self.action_script.runs,
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}
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if self.action_script.supports_max:
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attrs[ATTR_MAX] = self.action_script.max_runs
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if self._id is not None:
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attrs[CONF_ID] = self._id
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return attrs
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@property
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def is_on(self) -> bool:
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"""Return True if entity is on."""
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return self._async_detach_triggers is not None or self._is_enabled
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@property
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def referenced_areas(self):
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"""Return a set of referenced areas."""
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return self.action_script.referenced_areas
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@property
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def referenced_devices(self):
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"""Return a set of referenced devices."""
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if self._referenced_devices is not None:
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return self._referenced_devices
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referenced = self.action_script.referenced_devices
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if self._cond_func is not None:
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for conf in self._cond_func.config:
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referenced |= condition.async_extract_devices(conf)
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for conf in self._trigger_config:
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device = _trigger_extract_device(conf)
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if device is not None:
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referenced.add(device)
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self._referenced_devices = referenced
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return referenced
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@property
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def referenced_entities(self):
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"""Return a set of referenced entities."""
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if self._referenced_entities is not None:
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return self._referenced_entities
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referenced = self.action_script.referenced_entities
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if self._cond_func is not None:
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for conf in self._cond_func.config:
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referenced |= condition.async_extract_entities(conf)
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for conf in self._trigger_config:
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for entity_id in _trigger_extract_entities(conf):
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referenced.add(entity_id)
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self._referenced_entities = referenced
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return referenced
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async def async_added_to_hass(self) -> None:
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"""Startup with initial state or previous state."""
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await super().async_added_to_hass()
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self._logger = logging.getLogger(
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f"{__name__}.{split_entity_id(self.entity_id)[1]}"
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)
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self.action_script.update_logger(self._logger)
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state = await self.async_get_last_state()
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if state:
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enable_automation = state.state == STATE_ON
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last_triggered = state.attributes.get("last_triggered")
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if last_triggered is not None:
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self.action_script.last_triggered = parse_datetime(last_triggered)
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self._logger.debug(
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"Loaded automation %s with state %s from state "
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" storage last state %s",
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self.entity_id,
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enable_automation,
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state,
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)
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else:
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enable_automation = DEFAULT_INITIAL_STATE
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self._logger.debug(
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"Automation %s not in state storage, state %s from default is used",
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self.entity_id,
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enable_automation,
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)
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if self._initial_state is not None:
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enable_automation = self._initial_state
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self._logger.debug(
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"Automation %s initial state %s overridden from "
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"config initial_state",
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self.entity_id,
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enable_automation,
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)
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if enable_automation:
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await self.async_enable()
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async def async_turn_on(self, **kwargs: Any) -> None:
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"""Turn the entity on and update the state."""
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await self.async_enable()
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async def async_turn_off(self, **kwargs: Any) -> None:
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"""Turn the entity off."""
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if CONF_STOP_ACTIONS in kwargs:
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await self.async_disable(kwargs[CONF_STOP_ACTIONS])
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else:
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await self.async_disable()
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async def async_trigger(self, run_variables, context=None, skip_condition=False):
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"""Trigger automation.
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|
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|
This method is a coroutine.
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"""
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reason = ""
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if "trigger" in run_variables and "description" in run_variables["trigger"]:
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reason = f' by {run_variables["trigger"]["description"]}'
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self._logger.debug("Automation triggered%s", reason)
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# Create a new context referring to the old context.
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parent_id = None if context is None else context.id
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trigger_context = Context(parent_id=parent_id)
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with trace_automation(
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self.hass,
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self.unique_id,
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self._raw_config,
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self._blueprint_inputs,
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trigger_context,
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) as automation_trace:
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if self._variables:
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try:
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variables = self._variables.async_render(self.hass, run_variables)
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except template.TemplateError as err:
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|
self._logger.error("Error rendering variables: %s", err)
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automation_trace.set_error(err)
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return
|
|
else:
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|
variables = run_variables
|
|
# Prepare tracing the automation
|
|
automation_trace.set_trace(trace_get())
|
|
|
|
# Set trigger reason
|
|
trigger_description = variables.get("trigger", {}).get("description")
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automation_trace.set_trigger_description(trigger_description)
|
|
|
|
# Add initial variables as the trigger step
|
|
if "trigger" in variables and "id" in variables["trigger"]:
|
|
trigger_path = f"trigger/{variables['trigger']['id']}"
|
|
else:
|
|
trigger_path = "trigger"
|
|
trace_element = TraceElement(variables, trigger_path)
|
|
trace_append_element(trace_element)
|
|
|
|
if (
|
|
not skip_condition
|
|
and self._cond_func is not None
|
|
and not self._cond_func(variables)
|
|
):
|
|
self._logger.debug(
|
|
"Conditions not met, aborting automation. Condition summary: %s",
|
|
trace_get(clear=False),
|
|
)
|
|
script_execution_set("failed_conditions")
|
|
return
|
|
|
|
self.async_set_context(trigger_context)
|
|
event_data = {
|
|
ATTR_NAME: self._name,
|
|
ATTR_ENTITY_ID: self.entity_id,
|
|
}
|
|
if "trigger" in variables and "description" in variables["trigger"]:
|
|
event_data[ATTR_SOURCE] = variables["trigger"]["description"]
|
|
|
|
@callback
|
|
def started_action():
|
|
self.hass.bus.async_fire(
|
|
EVENT_AUTOMATION_TRIGGERED, event_data, context=trigger_context
|
|
)
|
|
|
|
try:
|
|
with trace_path("action"):
|
|
await self.action_script.async_run(
|
|
variables, trigger_context, started_action
|
|
)
|
|
except (vol.Invalid, HomeAssistantError) as err:
|
|
self._logger.error(
|
|
"Error while executing automation %s: %s",
|
|
self.entity_id,
|
|
err,
|
|
)
|
|
automation_trace.set_error(err)
|
|
except Exception as err: # pylint: disable=broad-except
|
|
self._logger.exception("While executing automation %s", self.entity_id)
|
|
automation_trace.set_error(err)
|
|
|
|
async def async_will_remove_from_hass(self):
|
|
"""Remove listeners when removing automation from Home Assistant."""
|
|
await super().async_will_remove_from_hass()
|
|
await self.async_disable()
|
|
|
|
async def async_enable(self):
|
|
"""Enable this automation entity.
|
|
|
|
This method is a coroutine.
|
|
"""
|
|
if self._is_enabled:
|
|
return
|
|
|
|
self._is_enabled = True
|
|
|
|
# HomeAssistant is starting up
|
|
if self.hass.state != CoreState.not_running:
|
|
self._async_detach_triggers = await self._async_attach_triggers(False)
|
|
self.async_write_ha_state()
|
|
return
|
|
|
|
async def async_enable_automation(event):
|
|
"""Start automation on startup."""
|
|
# Don't do anything if no longer enabled or already attached
|
|
if not self._is_enabled or self._async_detach_triggers is not None:
|
|
return
|
|
|
|
self._async_detach_triggers = await self._async_attach_triggers(True)
|
|
|
|
self.hass.bus.async_listen_once(
|
|
EVENT_HOMEASSISTANT_STARTED, async_enable_automation
|
|
)
|
|
self.async_write_ha_state()
|
|
|
|
async def async_disable(self, stop_actions=DEFAULT_STOP_ACTIONS):
|
|
"""Disable the automation entity."""
|
|
if not self._is_enabled and not self.action_script.runs:
|
|
return
|
|
|
|
self._is_enabled = False
|
|
|
|
if self._async_detach_triggers is not None:
|
|
self._async_detach_triggers()
|
|
self._async_detach_triggers = None
|
|
|
|
if stop_actions:
|
|
await self.action_script.async_stop()
|
|
|
|
self.async_write_ha_state()
|
|
|
|
async def _async_attach_triggers(
|
|
self, home_assistant_start: bool
|
|
) -> Callable[[], None] | None:
|
|
"""Set up the triggers."""
|
|
|
|
def log_cb(level, msg, **kwargs):
|
|
self._logger.log(level, "%s %s", msg, self._name, **kwargs)
|
|
|
|
variables = None
|
|
if self._trigger_variables:
|
|
try:
|
|
variables = self._trigger_variables.async_render(
|
|
self.hass, None, limited=True
|
|
)
|
|
except template.TemplateError as err:
|
|
self._logger.error("Error rendering trigger variables: %s", err)
|
|
return None
|
|
|
|
return await async_initialize_triggers(
|
|
self.hass,
|
|
self._trigger_config,
|
|
self.async_trigger,
|
|
DOMAIN,
|
|
self._name,
|
|
log_cb,
|
|
home_assistant_start,
|
|
variables,
|
|
)
|
|
|
|
|
|
async def _async_process_config(
|
|
hass: HomeAssistant,
|
|
config: dict[str, Any],
|
|
component: EntityComponent,
|
|
) -> bool:
|
|
"""Process config and add automations.
|
|
|
|
Returns if blueprints were used.
|
|
"""
|
|
entities = []
|
|
blueprints_used = False
|
|
|
|
for config_key in extract_domain_configs(config, DOMAIN):
|
|
conf: list[dict[str, Any] | blueprint.BlueprintInputs] = config[ # type: ignore
|
|
config_key
|
|
]
|
|
|
|
for list_no, config_block in enumerate(conf):
|
|
raw_blueprint_inputs = None
|
|
raw_config = None
|
|
if isinstance(config_block, blueprint.BlueprintInputs): # type: ignore
|
|
blueprints_used = True
|
|
blueprint_inputs = config_block
|
|
raw_blueprint_inputs = blueprint_inputs.config_with_inputs
|
|
|
|
try:
|
|
raw_config = blueprint_inputs.async_substitute()
|
|
config_block = cast(
|
|
Dict[str, Any],
|
|
await async_validate_config_item(hass, raw_config),
|
|
)
|
|
except vol.Invalid as err:
|
|
LOGGER.error(
|
|
"Blueprint %s generated invalid automation with inputs %s: %s",
|
|
blueprint_inputs.blueprint.name,
|
|
blueprint_inputs.inputs,
|
|
humanize_error(config_block, err),
|
|
)
|
|
continue
|
|
else:
|
|
raw_config = cast(AutomationConfig, config_block).raw_config
|
|
|
|
automation_id = config_block.get(CONF_ID)
|
|
name = config_block.get(CONF_ALIAS) or f"{config_key} {list_no}"
|
|
|
|
initial_state = config_block.get(CONF_INITIAL_STATE)
|
|
|
|
action_script = Script(
|
|
hass,
|
|
config_block[CONF_ACTION],
|
|
name,
|
|
DOMAIN,
|
|
running_description="automation actions",
|
|
script_mode=config_block[CONF_MODE],
|
|
max_runs=config_block[CONF_MAX],
|
|
max_exceeded=config_block[CONF_MAX_EXCEEDED],
|
|
logger=LOGGER,
|
|
# We don't pass variables here
|
|
# Automation will already render them to use them in the condition
|
|
# and so will pass them on to the script.
|
|
)
|
|
|
|
if CONF_CONDITION in config_block:
|
|
cond_func = await _async_process_if(hass, name, config, config_block)
|
|
|
|
if cond_func is None:
|
|
continue
|
|
else:
|
|
cond_func = None
|
|
|
|
# Add trigger variables to variables
|
|
variables = None
|
|
if CONF_TRIGGER_VARIABLES in config_block:
|
|
variables = ScriptVariables(
|
|
dict(config_block[CONF_TRIGGER_VARIABLES].as_dict())
|
|
)
|
|
if CONF_VARIABLES in config_block:
|
|
if variables:
|
|
variables.variables.update(config_block[CONF_VARIABLES].as_dict())
|
|
else:
|
|
variables = config_block[CONF_VARIABLES]
|
|
|
|
entity = AutomationEntity(
|
|
automation_id,
|
|
name,
|
|
config_block[CONF_TRIGGER],
|
|
cond_func,
|
|
action_script,
|
|
initial_state,
|
|
variables,
|
|
config_block.get(CONF_TRIGGER_VARIABLES),
|
|
raw_config,
|
|
raw_blueprint_inputs,
|
|
)
|
|
|
|
entities.append(entity)
|
|
|
|
if entities:
|
|
await component.async_add_entities(entities)
|
|
|
|
return blueprints_used
|
|
|
|
|
|
async def _async_process_if(hass, name, config, p_config):
|
|
"""Process if checks."""
|
|
if_configs = p_config[CONF_CONDITION]
|
|
|
|
checks = []
|
|
for if_config in if_configs:
|
|
try:
|
|
checks.append(await condition.async_from_config(hass, if_config, False))
|
|
except HomeAssistantError as ex:
|
|
LOGGER.warning("Invalid condition: %s", ex)
|
|
return None
|
|
|
|
def if_action(variables=None):
|
|
"""AND all conditions."""
|
|
errors = []
|
|
for index, check in enumerate(checks):
|
|
try:
|
|
with trace_path(["condition", str(index)]):
|
|
if not check(hass, variables):
|
|
return False
|
|
except ConditionError as ex:
|
|
errors.append(
|
|
ConditionErrorIndex(
|
|
"condition", index=index, total=len(checks), error=ex
|
|
)
|
|
)
|
|
|
|
if errors:
|
|
LOGGER.warning(
|
|
"Error evaluating condition in '%s':\n%s",
|
|
name,
|
|
ConditionErrorContainer("condition", errors=errors),
|
|
)
|
|
return False
|
|
|
|
return True
|
|
|
|
if_action.config = if_configs
|
|
|
|
return if_action
|
|
|
|
|
|
@callback
|
|
def _trigger_extract_device(trigger_conf: dict) -> str | None:
|
|
"""Extract devices from a trigger config."""
|
|
if trigger_conf[CONF_PLATFORM] != "device":
|
|
return None
|
|
|
|
return trigger_conf[CONF_DEVICE_ID]
|
|
|
|
|
|
@callback
|
|
def _trigger_extract_entities(trigger_conf: dict) -> list[str]:
|
|
"""Extract entities from a trigger config."""
|
|
if trigger_conf[CONF_PLATFORM] in ("state", "numeric_state"):
|
|
return trigger_conf[CONF_ENTITY_ID]
|
|
|
|
if trigger_conf[CONF_PLATFORM] == "zone":
|
|
return trigger_conf[CONF_ENTITY_ID] + [trigger_conf[CONF_ZONE]]
|
|
|
|
if trigger_conf[CONF_PLATFORM] == "geo_location":
|
|
return [trigger_conf[CONF_ZONE]]
|
|
|
|
if trigger_conf[CONF_PLATFORM] == "sun":
|
|
return ["sun.sun"]
|
|
|
|
return []
|