def _on_disconnect(
self,
client: mqtt.Client | None,
userdata: Any | None,
rc: int | None,
properties: Any | None = None, # pylint: disable=unused-argument,invalid-name
) -> None:
"""MQTT callback method."""
logger = self._log.getChild("mqtt.disconnected")
if rc > 0:
if rc == 7:
if not self.mqtt.connected:
raise MQTTException(
"Unexpected MQTT disconnect - were you perhaps banned?"
)
if self.mqtt.connected:
logger.debug("MQTT connection was lost! (%s)", error_string(rc))
logger.debug("Setting MQTT connected flag FALSE")
self.mqtt.connected = False
self._events.call(LandroidEvent.MQTT_CONNECTION, state=self.mqtt.connected)
for name, topics in self.mqtt.topics.items():
topic = topics["out"]
logger.debug(
"MQTT for %s disconnected, unsubscribing from topic '%s'",
name,
topic,
)
client.unsubscribe(topic)
def _on_connect(
self,
client: mqtt.Client | None,
userdata: Any | None,
flags: Any | None,
rc: int | None,
properties: Any | None = None, # pylint: disable=unused-argument,invalid-name
) -> None:
"""MQTT callback method."""
logger = self._log.getChild("mqtt.connected")
logger.debug(connack_string(rc))
if rc == 0:
for name, topics in self.mqtt.topics.items():
topic = topics["out"]
logger.debug(
"MQTT for %s connected, subscribing to topic '%s'", name, topic
)
client.subscribe(topic)
for name, device in self.devices.items():
device.mqtt = self.mqtt
if isinstance(device.raw_data, type(None)):
logger.debug(
"MQTT chached data not found for %s - requesting now", name
)
mqp = device.mqtt.send(name, force=True)
if isinstance(mqp, type(None)):
raise MQTTException("Couldn't send request to MQTT server.")
elif not isinstance(mqp, str):
while not mqp.is_published:
pass
logger.debug("Setting MQTT connected flag TRUE")
self.mqtt.connected = True
self._events.call(LandroidEvent.MQTT_CONNECTION, state=self.mqtt.connected)
else:
logger.debug("Setting MQTT connected flag FALSE")
self.mqtt.connected = False
self._events.call(LandroidEvent.MQTT_CONNECTION, state=self.mqtt.connected)
raise MQTTException(connack_string(rc))
