core/homeassistant/components/zwave_js/event.py

99 lines
3.7 KiB
Python

"""Support for Z-Wave controls using the event platform."""
from __future__ import annotations
from zwave_js_server.client import Client as ZwaveClient
from zwave_js_server.model.driver import Driver
from zwave_js_server.model.value import Value, ValueNotification
from homeassistant.components.event import DOMAIN as EVENT_DOMAIN, EventEntity
from homeassistant.config_entries import ConfigEntry
from homeassistant.core import HomeAssistant, callback
from homeassistant.helpers.dispatcher import async_dispatcher_connect
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from .const import ATTR_VALUE, DATA_CLIENT, DOMAIN
from .discovery import ZwaveDiscoveryInfo
from .entity import ZWaveBaseEntity
PARALLEL_UPDATES = 0
async def async_setup_entry(
hass: HomeAssistant,
config_entry: ConfigEntry,
async_add_entities: AddEntitiesCallback,
) -> None:
"""Set up Z-Wave Event entity from Config Entry."""
client: ZwaveClient = hass.data[DOMAIN][config_entry.entry_id][DATA_CLIENT]
@callback
def async_add_event(info: ZwaveDiscoveryInfo) -> None:
"""Add Z-Wave event entity."""
driver = client.driver
assert driver is not None # Driver is ready before platforms are loaded.
entities: list[ZWaveBaseEntity] = [ZwaveEventEntity(config_entry, driver, info)]
async_add_entities(entities)
config_entry.async_on_unload(
async_dispatcher_connect(
hass,
f"{DOMAIN}_{config_entry.entry_id}_add_{EVENT_DOMAIN}",
async_add_event,
)
)
def _cc_and_label(value: Value) -> str:
"""Return a string with the command class and label."""
label = value.metadata.label
if label:
label = label.lower()
return f"{value.command_class_name.capitalize()} {label}".strip()
class ZwaveEventEntity(ZWaveBaseEntity, EventEntity):
"""Representation of a Z-Wave event entity."""
def __init__(
self, config_entry: ConfigEntry, driver: Driver, info: ZwaveDiscoveryInfo
) -> None:
"""Initialize a ZwaveEventEntity entity."""
super().__init__(config_entry, driver, info)
value = self.value = info.primary_value
self.states: dict[int, str] = {}
if states := value.metadata.states:
self._attr_event_types = sorted(states.values())
self.states = {int(k): v for k, v in states.items()}
else:
self._attr_event_types = [_cc_and_label(value)]
# Entity class attributes
self._attr_name = self.generate_name(include_value_name=True)
@callback
def _async_handle_event(self, value_notification: ValueNotification) -> None:
"""Handle a value notification event."""
# If the notification doesn't match the value we are tracking, we can return
value = self.value
if (
value_notification.command_class != value.command_class
or value_notification.endpoint != value.endpoint
or value_notification.property_ != value.property_
or value_notification.property_key != value.property_key
or (notification_value := value_notification.value) is None
):
return
event_name = self.states.get(notification_value, _cc_and_label(value))
self._trigger_event(event_name, {ATTR_VALUE: notification_value})
self.async_write_ha_state()
async def async_added_to_hass(self) -> None:
"""Call when entity is added."""
await super().async_added_to_hass()
self.async_on_remove(
self.info.node.on(
"value notification",
lambda event: self._async_handle_event(event["value_notification"]),
)
)