Add devolo thermostat devices (#38594)

Co-authored-by: J. Nick Koston <nick@koston.org>

.coveragerc

@@ -166,6 +166,7 @@ omit =
     homeassistant/components/deutsche_bahn/sensor.py
     homeassistant/components/devolo_home_control/__init__.py
     homeassistant/components/devolo_home_control/binary_sensor.py
+    homeassistant/components/devolo_home_control/climate.py
     homeassistant/components/devolo_home_control/const.py
     homeassistant/components/devolo_home_control/cover.py
     homeassistant/components/devolo_home_control/devolo_device.py

homeassistant/components/devolo_home_control/climate.py

@@ -0,0 +1,116 @@
+"""Platform for climate integration."""
+import logging
+from typing import List, Optional
+
+from homeassistant.components.climate import (
+    ATTR_TEMPERATURE,
+    HVAC_MODE_HEAT,
+    SUPPORT_TARGET_TEMPERATURE,
+    TEMP_CELSIUS,
+    ClimateEntity,
+)
+from homeassistant.config_entries import ConfigEntry
+from homeassistant.const import PRECISION_HALVES
+from homeassistant.helpers.typing import HomeAssistantType
+
+from .const import DOMAIN
+from .devolo_device import DevoloDeviceEntity
+
+_LOGGER = logging.getLogger(__name__)
+
+
+async def async_setup_entry(
+    hass: HomeAssistantType, entry: ConfigEntry, async_add_entities
+) -> None:
+    """Get all cover devices and setup them via config entry."""
+    entities = []
+
+    for device in hass.data[DOMAIN]["homecontrol"].multi_level_switch_devices:
+        for multi_level_switch in device.multi_level_switch_property:
+            if device.deviceModelUID in [
+                "devolo.model.Thermostat:Valve",
+                "devolo.model.Room:Thermostat",
+            ]:
+                entities.append(
+                    DevoloClimateDeviceEntity(
+                        homecontrol=hass.data[DOMAIN]["homecontrol"],
+                        device_instance=device,
+                        element_uid=multi_level_switch,
+                    )
+                )
+
+    async_add_entities(entities, False)
+
+
+class DevoloClimateDeviceEntity(DevoloDeviceEntity, ClimateEntity):
+    """Representation of a climate/thermostat device within devolo Home Control."""
+
+    def __init__(self, homecontrol, device_instance, element_uid):
+        """Initialize a devolo climate/thermostat device."""
+        super().__init__(
+            homecontrol=homecontrol,
+            device_instance=device_instance,
+            element_uid=element_uid,
+            name=device_instance.item_name,
+            sync=self._sync,
+        )
+
+        self._multi_level_switch_property = (
+            device_instance.multi_level_switch_property.get(element_uid)
+        )
+
+        self._temperature = self._multi_level_switch_property.value
+
+    @property
+    def current_temperature(self) -> Optional[float]:
+        """Return the current temperature."""
+        return self._temperature
+
+    @property
+    def hvac_mode(self) -> str:
+        """Return the supported HVAC mode."""
+        return HVAC_MODE_HEAT
+
+    @property
+    def hvac_modes(self) -> List[str]:
+        """Return the list of available hvac operation modes."""
+        return [HVAC_MODE_HEAT]
+
+    @property
+    def min_temp(self) -> float:
+        """Return the minimum set temperature value."""
+        return self._multi_level_switch_property.min
+
+    @property
+    def max_temp(self) -> float:
+        """Return the maximum set temperature value."""
+        return self._multi_level_switch_property.max
+
+    @property
+    def precision(self) -> float:
+        """Return the precision of the set temperature."""
+        return PRECISION_HALVES
+
+    @property
+    def supported_features(self):
+        """Flag supported features."""
+        return SUPPORT_TARGET_TEMPERATURE
+
+    @property
+    def temperature_unit(self) -> str:
+        """Return the supported unit of temperature."""
+        return TEMP_CELSIUS
+
+    def set_temperature(self, **kwargs):
+        """Set new target temperature."""
+        self._multi_level_switch_property.set(kwargs[ATTR_TEMPERATURE])
+
+    def _sync(self, message=None):
+        """Update the climate entity triggered by web socket connection."""
+        if message[0] == self._unique_id:
+            self._temperature = message[1]
+        elif message[0].startswith("hdm"):
+            self._available = self._device_instance.is_online()
+        else:
+            _LOGGER.debug("Not valid message received: %s", message)
+        self.schedule_update_ha_state()

homeassistant/components/devolo_home_control/const.py

@@ -3,6 +3,6 @@
 DOMAIN = "devolo_home_control"
 DEFAULT_MYDEVOLO = "https://www.mydevolo.com"
 DEFAULT_MPRM = "https://homecontrol.mydevolo.com"
-PLATFORMS = ["binary_sensor", "cover", "light", "sensor", "switch"]
+PLATFORMS = ["binary_sensor", "climate", "cover", "light", "sensor", "switch"]
 CONF_MYDEVOLO = "mydevolo_url"
 CONF_HOMECONTROL = "home_control_url"