core/homeassistant/components/device_automation/trigger.py

104 lines
3.3 KiB
Python

"""Offer device oriented automation."""
from __future__ import annotations
from typing import Any, Protocol, cast
import voluptuous as vol
from homeassistant.const import CONF_DEVICE_ID, CONF_DOMAIN
from homeassistant.core import CALLBACK_TYPE, HomeAssistant
from homeassistant.helpers import device_registry as dr
from homeassistant.helpers.trigger import TriggerActionType, TriggerInfo
from homeassistant.helpers.typing import ConfigType
from . import (
DEVICE_TRIGGER_BASE_SCHEMA,
DeviceAutomationType,
async_get_device_automation_platform,
)
from .exceptions import InvalidDeviceAutomationConfig
TRIGGER_SCHEMA = DEVICE_TRIGGER_BASE_SCHEMA.extend({}, extra=vol.ALLOW_EXTRA)
class DeviceAutomationTriggerProtocol(Protocol):
"""Define the format of device_trigger modules.
Each module must define either TRIGGER_SCHEMA or async_validate_trigger_config.
"""
TRIGGER_SCHEMA: vol.Schema
async def async_validate_trigger_config(
self, hass: HomeAssistant, config: ConfigType
) -> ConfigType:
"""Validate config."""
async def async_attach_trigger(
self,
hass: HomeAssistant,
config: ConfigType,
action: TriggerActionType,
trigger_info: TriggerInfo,
) -> CALLBACK_TYPE:
"""Attach a trigger."""
async def async_get_trigger_capabilities(
self, hass: HomeAssistant, config: ConfigType
) -> dict[str, vol.Schema]:
"""List trigger capabilities."""
async def async_get_triggers(
self, hass: HomeAssistant, device_id: str
) -> list[dict[str, Any]]:
"""List triggers."""
async def async_validate_trigger_config(
hass: HomeAssistant, config: ConfigType
) -> ConfigType:
"""Validate config."""
try:
platform = await async_get_device_automation_platform(
hass, config[CONF_DOMAIN], DeviceAutomationType.TRIGGER
)
if not hasattr(platform, "async_validate_trigger_config"):
return cast(ConfigType, platform.TRIGGER_SCHEMA(config))
# Only call the dynamic validator if the relevant config entry is loaded
registry = dr.async_get(hass)
if not (device := registry.async_get(config[CONF_DEVICE_ID])):
return config
device_config_entry = None
for entry_id in device.config_entries:
if not (entry := hass.config_entries.async_get_entry(entry_id)):
continue
if entry.domain != config[CONF_DOMAIN]:
continue
device_config_entry = entry
break
if not device_config_entry:
return config
if not await hass.config_entries.async_wait_component(device_config_entry):
return config
return await platform.async_validate_trigger_config(hass, config)
except InvalidDeviceAutomationConfig as err:
raise vol.Invalid(str(err) or "Invalid trigger configuration") from err
async def async_attach_trigger(
hass: HomeAssistant,
config: ConfigType,
action: TriggerActionType,
trigger_info: TriggerInfo,
) -> CALLBACK_TYPE:
"""Listen for trigger."""
platform = await async_get_device_automation_platform(
hass, config[CONF_DOMAIN], DeviceAutomationType.TRIGGER
)
return await platform.async_attach_trigger(hass, config, action, trigger_info)