Migrate tuya lights to use Kelvin (#132803)

homeassistant/components/tuya/light.py

@@ -10,7 +10,7 @@ from tuya_sharing import CustomerDevice, Manager
 
 from homeassistant.components.light import (
     ATTR_BRIGHTNESS,
-    ATTR_COLOR_TEMP,
+    ATTR_COLOR_TEMP_KELVIN,
     ATTR_HS_COLOR,
     ColorMode,
     LightEntity,
@@ -21,6 +21,7 @@ from homeassistant.const import EntityCategory
 from homeassistant.core import HomeAssistant, callback
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
+from homeassistant.util import color as color_util
 
 from . import TuyaConfigEntry
 from .const import TUYA_DISCOVERY_NEW, DPCode, DPType, WorkMode
@@ -49,6 +50,9 @@ DEFAULT_COLOR_TYPE_DATA_V2 = ColorTypeData(
     v_type=IntegerTypeData(DPCode.COLOUR_DATA_HSV, min=1, scale=0, max=1000, step=1),
 )
 
+MAX_MIREDS = 500  # 2000 K
+MIN_MIREDS = 153  # 6500 K
+
 
 @dataclass(frozen=True)
 class TuyaLightEntityDescription(LightEntityDescription):
@@ -457,6 +461,8 @@ class TuyaLightEntity(TuyaEntity, LightEntity):
     _color_mode: DPCode | None = None
     _color_temp: IntegerTypeData | None = None
     _fixed_color_mode: ColorMode | None = None
+    _attr_min_color_temp_kelvin = 2000  # 500 Mireds
+    _attr_max_color_temp_kelvin = 6500  # 153 Mireds
 
     def __init__(
         self,
@@ -532,7 +538,7 @@ class TuyaLightEntity(TuyaEntity, LightEntity):
         """Turn on or control the light."""
         commands = [{"code": self.entity_description.key, "value": True}]
 
-        if self._color_temp and ATTR_COLOR_TEMP in kwargs:
+        if self._color_temp and ATTR_COLOR_TEMP_KELVIN in kwargs:
             if self._color_mode_dpcode:
                 commands += [
                     {
@@ -546,9 +552,11 @@ class TuyaLightEntity(TuyaEntity, LightEntity):
                     "code": self._color_temp.dpcode,
                     "value": round(
                         self._color_temp.remap_value_from(
-                            kwargs[ATTR_COLOR_TEMP],
-                            self.min_mireds,
-                            self.max_mireds,
+                            color_util.color_temperature_kelvin_to_mired(
+                                kwargs[ATTR_COLOR_TEMP_KELVIN]
+                            ),
+                            MIN_MIREDS,
+                            MAX_MIREDS,
                             reverse=True,
                         )
                     ),
@@ -560,7 +568,7 @@ class TuyaLightEntity(TuyaEntity, LightEntity):
             or (
                 ATTR_BRIGHTNESS in kwargs
                 and self.color_mode == ColorMode.HS
-                and ATTR_COLOR_TEMP not in kwargs
+                and ATTR_COLOR_TEMP_KELVIN not in kwargs
             )
         ):
             if self._color_mode_dpcode:
@@ -688,8 +696,8 @@ class TuyaLightEntity(TuyaEntity, LightEntity):
         return round(brightness)
 
     @property
-    def color_temp(self) -> int | None:
-        """Return the color_temp of the light."""
+    def color_temp_kelvin(self) -> int | None:
+        """Return the color temperature value in Kelvin."""
         if not self._color_temp:
             return None
 
@@ -697,9 +705,9 @@ class TuyaLightEntity(TuyaEntity, LightEntity):
         if temperature is None:
             return None
 
-        return round(
+        return color_util.color_temperature_mired_to_kelvin(
             self._color_temp.remap_value_to(
-                temperature, self.min_mireds, self.max_mireds, reverse=True
+                temperature, MIN_MIREDS, MAX_MIREDS, reverse=True
             )
         )