138 lines
4.3 KiB
Python
138 lines
4.3 KiB
Python
"""Support for DHT and DS18B20 sensors attached to a Konnected device."""
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from __future__ import annotations
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from homeassistant.components.sensor import SensorEntity, SensorEntityDescription
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from homeassistant.const import (
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CONF_DEVICES,
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CONF_NAME,
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CONF_SENSORS,
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CONF_TYPE,
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CONF_ZONE,
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DEVICE_CLASS_HUMIDITY,
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DEVICE_CLASS_TEMPERATURE,
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PERCENTAGE,
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TEMP_CELSIUS,
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)
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from homeassistant.core import callback
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from homeassistant.helpers.dispatcher import async_dispatcher_connect
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from homeassistant.helpers.entity import DeviceInfo
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from .const import DOMAIN as KONNECTED_DOMAIN, SIGNAL_DS18B20_NEW
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SENSOR_TYPES: dict[str, SensorEntityDescription] = {
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"temperature": SensorEntityDescription(
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key=DEVICE_CLASS_TEMPERATURE,
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name="Temperature",
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native_unit_of_measurement=TEMP_CELSIUS,
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device_class=DEVICE_CLASS_TEMPERATURE,
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),
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"humidity": SensorEntityDescription(
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key=DEVICE_CLASS_HUMIDITY,
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name="Humidity",
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native_unit_of_measurement=PERCENTAGE,
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device_class=DEVICE_CLASS_HUMIDITY,
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),
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}
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async def async_setup_entry(hass, config_entry, async_add_entities):
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"""Set up sensors attached to a Konnected device from a config entry."""
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data = hass.data[KONNECTED_DOMAIN]
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device_id = config_entry.data["id"]
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# Initialize all DHT sensors.
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dht_sensors = [
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sensor
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for sensor in data[CONF_DEVICES][device_id][CONF_SENSORS]
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if sensor[CONF_TYPE] == "dht"
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]
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entities = [
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KonnectedSensor(device_id, data=sensor_config, description=description)
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for sensor_config in dht_sensors
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for description in SENSOR_TYPES.values()
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]
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async_add_entities(entities)
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@callback
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def async_add_ds18b20(attrs):
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"""Add new KonnectedSensor representing a ds18b20 sensor."""
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sensor_config = next(
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(
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s
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for s in data[CONF_DEVICES][device_id][CONF_SENSORS]
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if s[CONF_TYPE] == "ds18b20" and s[CONF_ZONE] == attrs.get(CONF_ZONE)
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),
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None,
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)
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async_add_entities(
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[
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KonnectedSensor(
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device_id,
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sensor_config,
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SENSOR_TYPES["temperature"],
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addr=attrs.get("addr"),
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initial_state=attrs.get("temp"),
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)
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],
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True,
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)
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# DS18B20 sensors entities are initialized when they report for the first
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# time. Set up a listener for that signal from the Konnected component.
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async_dispatcher_connect(hass, SIGNAL_DS18B20_NEW, async_add_ds18b20)
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class KonnectedSensor(SensorEntity):
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"""Represents a Konnected DHT Sensor."""
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def __init__(
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self,
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device_id,
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data,
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description: SensorEntityDescription,
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addr=None,
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initial_state=None,
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):
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"""Initialize the entity for a single sensor_type."""
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self.entity_description = description
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self._addr = addr
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self._data = data
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self._zone_num = self._data.get(CONF_ZONE)
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self._attr_unique_id = addr or f"{device_id}-{self._zone_num}-{description.key}"
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# set initial state if known at initialization
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self._state = initial_state
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if self._state:
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self._state = round(float(self._state), 1)
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# set entity name if given
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if name := self._data.get(CONF_NAME):
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name += f" {description.name}"
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self._attr_name = name
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self._attr_device_info = DeviceInfo(identifiers={(KONNECTED_DOMAIN, device_id)})
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@property
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def native_value(self):
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"""Return the state of the sensor."""
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return self._state
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async def async_added_to_hass(self):
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"""Store entity_id and register state change callback."""
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entity_id_key = self._addr or self.entity_description.key
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self._data[entity_id_key] = self.entity_id
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async_dispatcher_connect(
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self.hass, f"konnected.{self.entity_id}.update", self.async_set_state
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)
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@callback
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def async_set_state(self, state):
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"""Update the sensor's state."""
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if self.entity_description.key == DEVICE_CLASS_HUMIDITY:
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self._state = int(float(state))
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else:
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self._state = round(float(state), 1)
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self.async_write_ha_state()
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