fix cover state issue

custom_components/localtuya/cover.py

@@ -104,21 +104,16 @@ class LocaltuyaCover(LocalTuyaEntity, CoverEntity):
         state = self._state
         return state == self._close_cmd
 
-    @property
-    def is_open(self):
-        """Return if the cover is open or not."""
-        if self._config[CONF_POSITIONING_MODE] != COVER_MODE_POSITION:
-            return None
-
-        return self._current_cover_position == 100
-
     @property
     def is_closed(self):
         """Return if the cover is closed or not."""
-        if self._config[CONF_POSITIONING_MODE] != COVER_MODE_POSITION:
+        if self._config[CONF_POSITIONING_MODE] == COVER_MODE_NONE:
+            return None
+        elif self._current_cover_position == 0:
+            return True
+        elif self._current_cover_position == 100:
+            return False
         return None
-
-        return self._current_cover_position == 0
 
     async def async_set_cover_position(self, **kwargs):
         """Move the cover to a specific position."""