Readded climate.velbus (#18434)

* Readded climate.velbus

* houndci-bot changes

* Added more comments

* Fix flake8 error

* return TEMP_* constants

* more comments

homeassistant/components/climate/velbus.py

@@ -0,0 +1,74 @@
+"""
+Support for Velbus thermostat.
+
+For more details about this platform, please refer to the documentation
+https://home-assistant.io/components/climate.velbus/
+"""
+import logging
+
+from homeassistant.components.climate import (
+    STATE_HEAT, SUPPORT_TARGET_TEMPERATURE, ClimateDevice)
+from homeassistant.components.velbus import (
+    DOMAIN as VELBUS_DOMAIN, VelbusEntity)
+from homeassistant.const import (
+    TEMP_CELSIUS, TEMP_FAHRENHEIT, ATTR_TEMPERATURE)
+
+_LOGGER = logging.getLogger(__name__)
+
+DEPENDENCIES = ['velbus']
+
+SUPPORT_FLAGS = (SUPPORT_TARGET_TEMPERATURE)
+
+
+async def async_setup_platform(
+        hass, config, async_add_entities, discovery_info=None):
+    """Set up the Velbus thermostat platform."""
+    if discovery_info is None:
+        return
+
+    sensors = []
+    for sensor in discovery_info:
+        module = hass.data[VELBUS_DOMAIN].get_module(sensor[0])
+        channel = sensor[1]
+        sensors.append(VelbusClimate(module, channel))
+
+    async_add_entities(sensors)
+
+
+class VelbusClimate(VelbusEntity, ClimateDevice):
+    """Representation of a Velbus thermostat."""
+
+    @property
+    def supported_features(self):
+        """Return the list off supported features."""
+        return SUPPORT_FLAGS
+
+    @property
+    def temperature_unit(self):
+        """Return the unit this state is expressed in."""
+        if self._module.get_unit(self._channel) == '°C':
+            return TEMP_CELSIUS
+        return TEMP_FAHRENHEIT
+
+    @property
+    def current_temperature(self):
+        """Return the current temperature."""
+        return self._module.get_state(self._channel)
+
+    @property
+    def current_operation(self):
+        """Return current operation."""
+        return STATE_HEAT
+
+    @property
+    def target_temperature(self):
+        """Return the temperature we try to reach."""
+        return self._module.get_climate_target()
+
+    def set_temperature(self, **kwargs):
+        """Set new target temperatures."""
+        temp = kwargs.get(ATTR_TEMPERATURE)
+        if temp is None:
+            return
+        self._module.set_temp(temp)
+        self.schedule_update_ha_state()

homeassistant/components/velbus.py

@@ -48,6 +48,7 @@ async def async_setup(hass, config):
         discovery_info = {
             'switch': [],
             'binary_sensor': [],
+            'climate': [],
             'sensor': []
         }
         for module in modules:
@@ -60,6 +61,8 @@ async def async_setup(hass, config):
                         ))
         load_platform(hass, 'switch', DOMAIN,
                       discovery_info['switch'], config)
+        load_platform(hass, 'climate', DOMAIN,
+                      discovery_info['climate'], config)
         load_platform(hass, 'binary_sensor', DOMAIN,
                       discovery_info['binary_sensor'], config)
         load_platform(hass, 'sensor', DOMAIN,