Implement optional light variable to reverse color temp

custom_components/localtuya/const.py

@@ -16,6 +16,7 @@ CONF_COLOR = "color"
 CONF_COLOR_MODE = "color_mode"
 CONF_COLOR_TEMP_MIN_KELVIN = "color_temp_min_kelvin"
 CONF_COLOR_TEMP_MAX_KELVIN = "color_temp_max_kelvin"
+CONF_COLOR_TEMP_REVERSE = "color_temp_reverse"
 CONF_MUSIC_MODE = "music_mode"
 
 # switch

custom_components/localtuya/light.py

@@ -27,6 +27,7 @@ from .const import (
     CONF_COLOR_MODE,
     CONF_COLOR_TEMP_MAX_KELVIN,
     CONF_COLOR_TEMP_MIN_KELVIN,
+    CONF_COLOR_TEMP_REVERSE,
     CONF_MUSIC_MODE,
 )
 
@@ -35,6 +36,7 @@ _LOGGER = logging.getLogger(__name__)
 MIRED_TO_KELVIN_CONST = 1000000
 DEFAULT_MIN_KELVIN = 2700  # MIRED 370
 DEFAULT_MAX_KELVIN = 6500  # MIRED 153
+DEFAULT_COLOR_TEMP_REVERSE = False
 
 DEFAULT_LOWER_BRIGHTNESS = 29
 DEFAULT_UPPER_BRIGHTNESS = 1000
@@ -117,6 +119,9 @@ def flow_schema(dps):
         vol.Optional(CONF_COLOR_TEMP_MAX_KELVIN, default=DEFAULT_MAX_KELVIN): vol.All(
             vol.Coerce(int), vol.Range(min=1500, max=8000)
         ),
+        vol.Optional(
+            CONF_COLOR_TEMP_REVERSE, default=False, description={"suggested_value": False}
+        ): bool,
         vol.Optional(CONF_SCENE): vol.In(dps),
         vol.Optional(
             CONF_MUSIC_MODE, default=False, description={"suggested_value": False}
@@ -154,6 +159,9 @@ class LocaltuyaLight(LocalTuyaEntity, LightEntity):
             MIRED_TO_KELVIN_CONST
             / self._config.get(CONF_COLOR_TEMP_MAX_KELVIN, DEFAULT_MAX_KELVIN)
         )
+        self._color_temp_reverse = self._config.get(
+            CONF_COLOR_TEMP_REVERSE, DEFAULT_COLOR_TEMP_REVERSE
+        )
         self._hs = None
         self._effect = None
         self._effect_list = []
@@ -199,13 +207,15 @@ class LocaltuyaLight(LocalTuyaEntity, LightEntity):
     def color_temp(self):
         """Return the color_temp of the light."""
         if self.has_config(CONF_COLOR_TEMP) and self.is_white_mode:
-            return int(
+            color_temp_value =  self._upper_color_temp - self._color_temp if self._color_temp_reverse else self._color_temp
+            color_temp_scaled = int(
                 self._max_mired
                 - (
                     ((self._max_mired - self._min_mired) / self._upper_color_temp)
-                    * self._color_temp
+                    * color_temp_value
                 )
             )
+            return color_temp_scaled
         return None
 
     @property
@@ -364,14 +374,16 @@ class LocaltuyaLight(LocalTuyaEntity, LightEntity):
         if ATTR_COLOR_TEMP in kwargs and (features & SUPPORT_COLOR_TEMP):
             if brightness is None:
                 brightness = self._brightness
-            color_temp = int(
+            
+            color_temp_value =  (self._max_mired - self._min_mired) - (int(kwargs[ATTR_COLOR_TEMP]) - self._min_mired) if self._color_temp_reverse else (int(kwargs[ATTR_COLOR_TEMP]) - self._min_mired)
+            color_temp_scaled = int(
                 self._upper_color_temp
                 - (self._upper_color_temp / (self._max_mired - self._min_mired))
-                * (int(kwargs[ATTR_COLOR_TEMP]) - self._min_mired)
+                * color_temp_value
             )
             states[self._config.get(CONF_COLOR_MODE)] = MODE_WHITE
             states[self._config.get(CONF_BRIGHTNESS)] = brightness
-            states[self._config.get(CONF_COLOR_TEMP)] = color_temp
+            states[self._config.get(CONF_COLOR_TEMP)] = color_temp_scaled
         await self._device.set_dps(states)
 
     async def async_turn_off(self, **kwargs):