169 lines
5.2 KiB
Python
169 lines
5.2 KiB
Python
"""The template component."""
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from __future__ import annotations
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import asyncio
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from collections.abc import Callable
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import logging
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from homeassistant import config as conf_util
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from homeassistant.const import (
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CONF_UNIQUE_ID,
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EVENT_HOMEASSISTANT_START,
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SERVICE_RELOAD,
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)
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from homeassistant.core import CoreState, Event, callback
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from homeassistant.exceptions import HomeAssistantError
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from homeassistant.helpers import (
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discovery,
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trigger as trigger_helper,
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update_coordinator,
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)
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from homeassistant.helpers.reload import async_reload_integration_platforms
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from homeassistant.loader import async_get_integration
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from .const import CONF_TRIGGER, DOMAIN, PLATFORMS
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_LOGGER = logging.getLogger(__name__)
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async def async_setup(hass, config):
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"""Set up the template integration."""
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if DOMAIN in config:
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await _process_config(hass, config)
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async def _reload_config(call: Event) -> None:
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"""Reload top-level + platforms."""
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try:
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unprocessed_conf = await conf_util.async_hass_config_yaml(hass)
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except HomeAssistantError as err:
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_LOGGER.error(err)
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return
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conf = await conf_util.async_process_component_config(
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hass, unprocessed_conf, await async_get_integration(hass, DOMAIN)
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)
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if conf is None:
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return
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await async_reload_integration_platforms(hass, DOMAIN, PLATFORMS)
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if DOMAIN in conf:
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await _process_config(hass, conf)
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hass.bus.async_fire(f"event_{DOMAIN}_reloaded", context=call.context)
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hass.helpers.service.async_register_admin_service(
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DOMAIN, SERVICE_RELOAD, _reload_config
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)
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return True
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async def _process_config(hass, hass_config):
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"""Process config."""
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coordinators: list[TriggerUpdateCoordinator] | None = hass.data.pop(DOMAIN, None)
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# Remove old ones
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if coordinators:
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for coordinator in coordinators:
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coordinator.async_remove()
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async def init_coordinator(hass, conf_section):
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coordinator = TriggerUpdateCoordinator(hass, conf_section)
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await coordinator.async_setup(hass_config)
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return coordinator
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coordinator_tasks = []
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for conf_section in hass_config[DOMAIN]:
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if CONF_TRIGGER in conf_section:
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coordinator_tasks.append(init_coordinator(hass, conf_section))
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continue
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for platform_domain in PLATFORMS:
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if platform_domain in conf_section:
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hass.async_create_task(
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discovery.async_load_platform(
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hass,
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platform_domain,
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DOMAIN,
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{
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"unique_id": conf_section.get(CONF_UNIQUE_ID),
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"entities": conf_section[platform_domain],
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},
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hass_config,
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)
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)
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if coordinator_tasks:
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hass.data[DOMAIN] = await asyncio.gather(*coordinator_tasks)
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class TriggerUpdateCoordinator(update_coordinator.DataUpdateCoordinator):
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"""Class to handle incoming data."""
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REMOVE_TRIGGER = object()
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def __init__(self, hass, config):
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"""Instantiate trigger data."""
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super().__init__(hass, _LOGGER, name="Trigger Update Coordinator")
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self.config = config
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self._unsub_start: Callable[[], None] | None = None
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self._unsub_trigger: Callable[[], None] | None = None
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@property
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def unique_id(self) -> str | None:
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"""Return unique ID for the entity."""
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return self.config.get("unique_id")
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@callback
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def async_remove(self):
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"""Signal that the entities need to remove themselves."""
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if self._unsub_start:
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self._unsub_start()
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if self._unsub_trigger:
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self._unsub_trigger()
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async def async_setup(self, hass_config):
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"""Set up the trigger and create entities."""
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if self.hass.state == CoreState.running:
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await self._attach_triggers()
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else:
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self._unsub_start = self.hass.bus.async_listen_once(
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EVENT_HOMEASSISTANT_START, self._attach_triggers
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)
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for platform_domain in PLATFORMS:
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if platform_domain in self.config:
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self.hass.async_create_task(
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discovery.async_load_platform(
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self.hass,
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platform_domain,
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DOMAIN,
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{"coordinator": self, "entities": self.config[platform_domain]},
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hass_config,
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)
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)
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async def _attach_triggers(self, start_event=None) -> None:
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"""Attach the triggers."""
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if start_event is not None:
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self._unsub_start = None
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self._unsub_trigger = await trigger_helper.async_initialize_triggers(
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self.hass,
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self.config[CONF_TRIGGER],
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self._handle_triggered,
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DOMAIN,
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self.name,
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self.logger.log,
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start_event is not None,
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)
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@callback
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def _handle_triggered(self, run_variables, context=None):
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self.async_set_updated_data(
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{"run_variables": run_variables, "context": context}
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)
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