Add Blebox climate support (#35373)

* support BleBox climate

* refactor entity async_setup_entry functions

* use constants and simplify hvac mode setting

* apply fixes from review requests in #35370

* remove unneeded const mappings

homeassistant/components/blebox/climate.py

@@ -0,0 +1,91 @@
+"""BleBox climate entity."""
+
+from homeassistant.components.climate import ClimateDevice
+from homeassistant.components.climate.const import (
+    CURRENT_HVAC_HEAT,
+    CURRENT_HVAC_IDLE,
+    CURRENT_HVAC_OFF,
+    HVAC_MODE_HEAT,
+    HVAC_MODE_OFF,
+    SUPPORT_TARGET_TEMPERATURE,
+)
+from homeassistant.const import ATTR_TEMPERATURE, TEMP_CELSIUS
+
+from . import BleBoxEntity, create_blebox_entities
+
+
+async def async_setup_entry(hass, config_entry, async_add_entities):
+    """Set up a BleBox climate entity."""
+
+    create_blebox_entities(
+        hass, config_entry, async_add_entities, BleBoxClimateEntity, "climates"
+    )
+
+
+class BleBoxClimateEntity(BleBoxEntity, ClimateDevice):
+    """Representation of a BleBox climate feature (saunaBox)."""
+
+    @property
+    def supported_features(self):
+        """Return the supported climate features."""
+        return SUPPORT_TARGET_TEMPERATURE
+
+    @property
+    def hvac_mode(self):
+        """Return the desired HVAC mode."""
+        if self._feature.is_on is None:
+            return None
+
+        return HVAC_MODE_HEAT if self._feature.is_on else HVAC_MODE_OFF
+
+    @property
+    def hvac_action(self):
+        """Return the actual current HVAC action."""
+        is_on = self._feature.is_on
+        if not is_on:
+            return None if is_on is None else CURRENT_HVAC_OFF
+
+        # NOTE: In practice, there's no need to handle case when is_heating is None
+        return CURRENT_HVAC_HEAT if self._feature.is_heating else CURRENT_HVAC_IDLE
+
+    @property
+    def hvac_modes(self):
+        """Return a list of possible HVAC modes."""
+        return [HVAC_MODE_OFF, HVAC_MODE_HEAT]
+
+    @property
+    def temperature_unit(self):
+        """Return the temperature unit."""
+        return TEMP_CELSIUS
+
+    @property
+    def max_temp(self):
+        """Return the maximum temperature supported."""
+        return self._feature.max_temp
+
+    @property
+    def min_temp(self):
+        """Return the maximum temperature supported."""
+        return self._feature.min_temp
+
+    @property
+    def current_temperature(self):
+        """Return the current temperature."""
+        return self._feature.current
+
+    @property
+    def target_temperature(self):
+        """Return the desired thermostat temperature."""
+        return self._feature.desired
+
+    async def async_set_hvac_mode(self, hvac_mode):
+        """Set the climate entity mode."""
+        if hvac_mode == HVAC_MODE_HEAT:
+            return await self._feature.async_on()
+
+        return await self._feature.async_off()
+
+    async def async_set_temperature(self, **kwargs):
+        """Set the thermostat temperature."""
+        value = kwargs[ATTR_TEMPERATURE]
+        await self._feature.async_set_temperature(value)