"""Support for MQTT fans.""" import logging import voluptuous as vol from homeassistant.components import fan, mqtt from homeassistant.components.fan import ( ATTR_SPEED, SPEED_HIGH, SPEED_LOW, SPEED_MEDIUM, SPEED_OFF, SUPPORT_OSCILLATE, SUPPORT_SET_SPEED, FanEntity) from homeassistant.const import ( CONF_DEVICE, CONF_NAME, CONF_OPTIMISTIC, CONF_PAYLOAD_OFF, CONF_PAYLOAD_ON, CONF_STATE, STATE_OFF, STATE_ON) from homeassistant.core import callback import homeassistant.helpers.config_validation as cv from homeassistant.helpers.dispatcher import async_dispatcher_connect from homeassistant.helpers.typing import ConfigType, HomeAssistantType from . import ( ATTR_DISCOVERY_HASH, CONF_COMMAND_TOPIC, CONF_QOS, CONF_RETAIN, CONF_STATE_TOPIC, CONF_UNIQUE_ID, MqttAttributes, MqttAvailability, MqttDiscoveryUpdate, MqttEntityDeviceInfo, subscription) from .discovery import MQTT_DISCOVERY_NEW, clear_discovery_hash _LOGGER = logging.getLogger(__name__) DEPENDENCIES = ['mqtt'] CONF_STATE_VALUE_TEMPLATE = 'state_value_template' CONF_SPEED_STATE_TOPIC = 'speed_state_topic' CONF_SPEED_COMMAND_TOPIC = 'speed_command_topic' CONF_SPEED_VALUE_TEMPLATE = 'speed_value_template' CONF_OSCILLATION_STATE_TOPIC = 'oscillation_state_topic' CONF_OSCILLATION_COMMAND_TOPIC = 'oscillation_command_topic' CONF_OSCILLATION_VALUE_TEMPLATE = 'oscillation_value_template' CONF_PAYLOAD_OSCILLATION_ON = 'payload_oscillation_on' CONF_PAYLOAD_OSCILLATION_OFF = 'payload_oscillation_off' CONF_PAYLOAD_LOW_SPEED = 'payload_low_speed' CONF_PAYLOAD_MEDIUM_SPEED = 'payload_medium_speed' CONF_PAYLOAD_HIGH_SPEED = 'payload_high_speed' CONF_SPEED_LIST = 'speeds' DEFAULT_NAME = 'MQTT Fan' DEFAULT_PAYLOAD_ON = 'ON' DEFAULT_PAYLOAD_OFF = 'OFF' DEFAULT_OPTIMISTIC = False OSCILLATE_ON_PAYLOAD = 'oscillate_on' OSCILLATE_OFF_PAYLOAD = 'oscillate_off' OSCILLATION = 'oscillation' PLATFORM_SCHEMA = mqtt.MQTT_RW_PLATFORM_SCHEMA.extend({ vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string, vol.Optional(CONF_STATE_VALUE_TEMPLATE): cv.template, vol.Optional(CONF_SPEED_STATE_TOPIC): mqtt.valid_subscribe_topic, vol.Optional(CONF_SPEED_COMMAND_TOPIC): mqtt.valid_publish_topic, vol.Optional(CONF_SPEED_VALUE_TEMPLATE): cv.template, vol.Optional(CONF_OSCILLATION_STATE_TOPIC): mqtt.valid_subscribe_topic, vol.Optional(CONF_OSCILLATION_COMMAND_TOPIC): mqtt.valid_publish_topic, vol.Optional(CONF_OSCILLATION_VALUE_TEMPLATE): cv.template, vol.Optional(CONF_PAYLOAD_ON, default=DEFAULT_PAYLOAD_ON): cv.string, vol.Optional(CONF_PAYLOAD_OFF, default=DEFAULT_PAYLOAD_OFF): cv.string, vol.Optional(CONF_PAYLOAD_OSCILLATION_ON, default=DEFAULT_PAYLOAD_ON): cv.string, vol.Optional(CONF_PAYLOAD_OSCILLATION_OFF, default=DEFAULT_PAYLOAD_OFF): cv.string, vol.Optional(CONF_PAYLOAD_LOW_SPEED, default=SPEED_LOW): cv.string, vol.Optional(CONF_PAYLOAD_MEDIUM_SPEED, default=SPEED_MEDIUM): cv.string, vol.Optional(CONF_PAYLOAD_HIGH_SPEED, default=SPEED_HIGH): cv.string, vol.Optional(CONF_SPEED_LIST, default=[SPEED_OFF, SPEED_LOW, SPEED_MEDIUM, SPEED_HIGH]): cv.ensure_list, vol.Optional(CONF_OPTIMISTIC, default=DEFAULT_OPTIMISTIC): cv.boolean, vol.Optional(CONF_UNIQUE_ID): cv.string, vol.Optional(CONF_DEVICE): mqtt.MQTT_ENTITY_DEVICE_INFO_SCHEMA, }).extend(mqtt.MQTT_AVAILABILITY_SCHEMA.schema).extend( mqtt.MQTT_JSON_ATTRS_SCHEMA.schema) async def async_setup_platform(hass: HomeAssistantType, config: ConfigType, async_add_entities, discovery_info=None): """Set up MQTT fan through configuration.yaml.""" await _async_setup_entity(config, async_add_entities) async def async_setup_entry(hass, config_entry, async_add_entities): """Set up MQTT fan dynamically through MQTT discovery.""" async def async_discover(discovery_payload): """Discover and add a MQTT fan.""" try: discovery_hash = discovery_payload.pop(ATTR_DISCOVERY_HASH) config = PLATFORM_SCHEMA(discovery_payload) await _async_setup_entity(config, async_add_entities, config_entry, discovery_hash) except Exception: if discovery_hash: clear_discovery_hash(hass, discovery_hash) raise async_dispatcher_connect( hass, MQTT_DISCOVERY_NEW.format(fan.DOMAIN, 'mqtt'), async_discover) async def _async_setup_entity(config, async_add_entities, config_entry=None, discovery_hash=None): """Set up the MQTT fan.""" async_add_entities([MqttFan(config, config_entry, discovery_hash)]) # pylint: disable=too-many-ancestors class MqttFan(MqttAttributes, MqttAvailability, MqttDiscoveryUpdate, MqttEntityDeviceInfo, FanEntity): """A MQTT fan component.""" def __init__(self, config, config_entry, discovery_hash): """Initialize the MQTT fan.""" self._unique_id = config.get(CONF_UNIQUE_ID) self._state = False self._speed = None self._oscillation = None self._supported_features = 0 self._sub_state = None self._topic = None self._payload = None self._templates = None self._optimistic = None self._optimistic_oscillation = None self._optimistic_speed = None # Load config self._setup_from_config(config) device_config = config.get(CONF_DEVICE) MqttAttributes.__init__(self, config) MqttAvailability.__init__(self, config) MqttDiscoveryUpdate.__init__(self, discovery_hash, self.discovery_update) MqttEntityDeviceInfo.__init__(self, device_config, config_entry) async def async_added_to_hass(self): """Subscribe to MQTT events.""" await super().async_added_to_hass() await self._subscribe_topics() async def discovery_update(self, discovery_payload): """Handle updated discovery message.""" config = PLATFORM_SCHEMA(discovery_payload) self._setup_from_config(config) await self.attributes_discovery_update(config) await self.availability_discovery_update(config) await self.device_info_discovery_update(config) await self._subscribe_topics() self.async_write_ha_state() def _setup_from_config(self, config): """(Re)Setup the entity.""" self._config = config self._topic = { key: config.get(key) for key in ( CONF_STATE_TOPIC, CONF_COMMAND_TOPIC, CONF_SPEED_STATE_TOPIC, CONF_SPEED_COMMAND_TOPIC, CONF_OSCILLATION_STATE_TOPIC, CONF_OSCILLATION_COMMAND_TOPIC, ) } self._templates = { CONF_STATE: config.get(CONF_STATE_VALUE_TEMPLATE), ATTR_SPEED: config.get(CONF_SPEED_VALUE_TEMPLATE), OSCILLATION: config.get(CONF_OSCILLATION_VALUE_TEMPLATE) } self._payload = { STATE_ON: config.get(CONF_PAYLOAD_ON), STATE_OFF: config.get(CONF_PAYLOAD_OFF), OSCILLATE_ON_PAYLOAD: config.get(CONF_PAYLOAD_OSCILLATION_ON), OSCILLATE_OFF_PAYLOAD: config.get(CONF_PAYLOAD_OSCILLATION_OFF), SPEED_LOW: config.get(CONF_PAYLOAD_LOW_SPEED), SPEED_MEDIUM: config.get(CONF_PAYLOAD_MEDIUM_SPEED), SPEED_HIGH: config.get(CONF_PAYLOAD_HIGH_SPEED), } optimistic = config.get(CONF_OPTIMISTIC) self._optimistic = optimistic or self._topic[CONF_STATE_TOPIC] is None self._optimistic_oscillation = ( optimistic or self._topic[CONF_OSCILLATION_STATE_TOPIC] is None) self._optimistic_speed = ( optimistic or self._topic[CONF_SPEED_STATE_TOPIC] is None) self._supported_features = 0 self._supported_features |= (self._topic[CONF_OSCILLATION_STATE_TOPIC] is not None and SUPPORT_OSCILLATE) self._supported_features |= (self._topic[CONF_SPEED_STATE_TOPIC] is not None and SUPPORT_SET_SPEED) async def _subscribe_topics(self): """(Re)Subscribe to topics.""" topics = {} templates = {} for key, tpl in list(self._templates.items()): if tpl is None: templates[key] = lambda value: value else: tpl.hass = self.hass templates[key] = tpl.async_render_with_possible_json_value @callback def state_received(msg): """Handle new received MQTT message.""" payload = templates[CONF_STATE](msg.payload) if payload == self._payload[STATE_ON]: self._state = True elif payload == self._payload[STATE_OFF]: self._state = False self.async_write_ha_state() if self._topic[CONF_STATE_TOPIC] is not None: topics[CONF_STATE_TOPIC] = { 'topic': self._topic[CONF_STATE_TOPIC], 'msg_callback': state_received, 'qos': self._config.get(CONF_QOS)} @callback def speed_received(msg): """Handle new received MQTT message for the speed.""" payload = templates[ATTR_SPEED](msg.payload) if payload == self._payload[SPEED_LOW]: self._speed = SPEED_LOW elif payload == self._payload[SPEED_MEDIUM]: self._speed = SPEED_MEDIUM elif payload == self._payload[SPEED_HIGH]: self._speed = SPEED_HIGH self.async_write_ha_state() if self._topic[CONF_SPEED_STATE_TOPIC] is not None: topics[CONF_SPEED_STATE_TOPIC] = { 'topic': self._topic[CONF_SPEED_STATE_TOPIC], 'msg_callback': speed_received, 'qos': self._config.get(CONF_QOS)} self._speed = SPEED_OFF @callback def oscillation_received(msg): """Handle new received MQTT message for the oscillation.""" payload = templates[OSCILLATION](msg.payload) if payload == self._payload[OSCILLATE_ON_PAYLOAD]: self._oscillation = True elif payload == self._payload[OSCILLATE_OFF_PAYLOAD]: self._oscillation = False self.async_write_ha_state() if self._topic[CONF_OSCILLATION_STATE_TOPIC] is not None: topics[CONF_OSCILLATION_STATE_TOPIC] = { 'topic': self._topic[CONF_OSCILLATION_STATE_TOPIC], 'msg_callback': oscillation_received, 'qos': self._config.get(CONF_QOS)} self._oscillation = False self._sub_state = await subscription.async_subscribe_topics( self.hass, self._sub_state, topics) async def async_will_remove_from_hass(self): """Unsubscribe when removed.""" self._sub_state = await subscription.async_unsubscribe_topics( self.hass, self._sub_state) await MqttAttributes.async_will_remove_from_hass(self) await MqttAvailability.async_will_remove_from_hass(self) @property def should_poll(self): """No polling needed for a MQTT fan.""" return False @property def assumed_state(self): """Return true if we do optimistic updates.""" return self._optimistic @property def is_on(self): """Return true if device is on.""" return self._state @property def name(self) -> str: """Get entity name.""" return self._config.get(CONF_NAME) @property def speed_list(self) -> list: """Get the list of available speeds.""" return self._config.get(CONF_SPEED_LIST) @property def supported_features(self) -> int: """Flag supported features.""" return self._supported_features @property def speed(self): """Return the current speed.""" return self._speed @property def oscillating(self): """Return the oscillation state.""" return self._oscillation async def async_turn_on(self, speed: str = None, **kwargs) -> None: """Turn on the entity. This method is a coroutine. """ mqtt.async_publish( self.hass, self._topic[CONF_COMMAND_TOPIC], self._payload[STATE_ON], self._config.get(CONF_QOS), self._config.get(CONF_RETAIN)) if speed: await self.async_set_speed(speed) async def async_turn_off(self, **kwargs) -> None: """Turn off the entity. This method is a coroutine. """ mqtt.async_publish( self.hass, self._topic[CONF_COMMAND_TOPIC], self._payload[STATE_OFF], self._config.get(CONF_QOS), self._config.get(CONF_RETAIN)) async def async_set_speed(self, speed: str) -> None: """Set the speed of the fan. This method is a coroutine. """ if self._topic[CONF_SPEED_COMMAND_TOPIC] is None: return if speed == SPEED_LOW: mqtt_payload = self._payload[SPEED_LOW] elif speed == SPEED_MEDIUM: mqtt_payload = self._payload[SPEED_MEDIUM] elif speed == SPEED_HIGH: mqtt_payload = self._payload[SPEED_HIGH] else: mqtt_payload = speed mqtt.async_publish( self.hass, self._topic[CONF_SPEED_COMMAND_TOPIC], mqtt_payload, self._config.get(CONF_QOS), self._config.get(CONF_RETAIN)) if self._optimistic_speed: self._speed = speed self.async_write_ha_state() async def async_oscillate(self, oscillating: bool) -> None: """Set oscillation. This method is a coroutine. """ if self._topic[CONF_OSCILLATION_COMMAND_TOPIC] is None: return if oscillating is False: payload = self._payload[OSCILLATE_OFF_PAYLOAD] else: payload = self._payload[OSCILLATE_ON_PAYLOAD] mqtt.async_publish( self.hass, self._topic[CONF_OSCILLATION_COMMAND_TOPIC], payload, self._config.get(CONF_QOS), self._config.get(CONF_RETAIN)) if self._optimistic_oscillation: self._oscillation = oscillating self.async_write_ha_state() @property def unique_id(self): """Return a unique ID.""" return self._unique_id