core/homeassistant/components/mqtt/notify.py

84 lines
2.7 KiB
Python

"""Support for MQTT notify."""
from __future__ import annotations
import voluptuous as vol
from homeassistant.components import notify
from homeassistant.components.notify import NotifyEntity
from homeassistant.config_entries import ConfigEntry
from homeassistant.const import CONF_NAME
from homeassistant.core import HomeAssistant, callback
import homeassistant.helpers.config_validation as cv
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from homeassistant.helpers.typing import ConfigType
from .config import DEFAULT_RETAIN, MQTT_BASE_SCHEMA
from .const import CONF_COMMAND_TEMPLATE, CONF_COMMAND_TOPIC, CONF_RETAIN
from .entity import MqttEntity, async_setup_entity_entry_helper
from .models import MqttCommandTemplate
from .schemas import MQTT_ENTITY_COMMON_SCHEMA
from .util import valid_publish_topic
PARALLEL_UPDATES = 0
DEFAULT_NAME = "MQTT notify"
PLATFORM_SCHEMA_MODERN = MQTT_BASE_SCHEMA.extend(
{
vol.Optional(CONF_COMMAND_TEMPLATE): cv.template,
vol.Required(CONF_COMMAND_TOPIC): valid_publish_topic,
vol.Optional(CONF_NAME): vol.Any(cv.string, None),
vol.Optional(CONF_RETAIN, default=DEFAULT_RETAIN): cv.boolean,
}
).extend(MQTT_ENTITY_COMMON_SCHEMA.schema)
DISCOVERY_SCHEMA = PLATFORM_SCHEMA_MODERN.extend({}, extra=vol.REMOVE_EXTRA)
async def async_setup_entry(
hass: HomeAssistant,
config_entry: ConfigEntry,
async_add_entities: AddEntitiesCallback,
) -> None:
"""Set up MQTT notify through YAML and through MQTT discovery."""
async_setup_entity_entry_helper(
hass,
config_entry,
MqttNotify,
notify.DOMAIN,
async_add_entities,
DISCOVERY_SCHEMA,
PLATFORM_SCHEMA_MODERN,
)
class MqttNotify(MqttEntity, NotifyEntity):
"""Representation of a notification entity service that can send messages using MQTT."""
_default_name = DEFAULT_NAME
_entity_id_format = notify.ENTITY_ID_FORMAT
@staticmethod
def config_schema() -> vol.Schema:
"""Return the config schema."""
return DISCOVERY_SCHEMA
def _setup_from_config(self, config: ConfigType) -> None:
"""(Re)Setup the entity."""
self._command_template = MqttCommandTemplate(
config.get(CONF_COMMAND_TEMPLATE), entity=self
).async_render
@callback
def _prepare_subscribe_topics(self) -> None:
"""(Re)Subscribe to topics."""
async def _subscribe_topics(self) -> None:
"""(Re)Subscribe to topics."""
async def async_send_message(self, message: str, title: str | None = None) -> None:
"""Send a message."""
payload = self._command_template(message)
await self.async_publish_with_config(self._config[CONF_COMMAND_TOPIC], payload)