Allow OpenUV entities to be unavailable (#31018)

* Allow OpenUV entities to be unavailable

* Empty commit to re-trigger build

homeassistant/components/openuv/__init__.py

@@ -289,9 +289,15 @@ class OpenUvEntity(Entity):
     def __init__(self, openuv):
         """Initialize."""
         self._attrs = {ATTR_ATTRIBUTION: DEFAULT_ATTRIBUTION}
+        self._available = True
         self._name = None
         self.openuv = openuv
 
+    @property
+    def available(self) -> bool:
+        """Return True if entity is available."""
+        return self._available
+
     @property
     def device_state_attributes(self):
         """Return the state attributes."""

homeassistant/components/openuv/binary_sensor.py

@@ -100,8 +100,11 @@ class OpenUvBinarySensor(OpenUvEntity, BinarySensorDevice):
         data = self.openuv.data[DATA_PROTECTION_WINDOW]
 
         if not data:
+            self._available = False
             return
 
+        self._available = True
+
         for key in ("from_time", "to_time", "from_uv", "to_uv"):
             if not data.get(key):
                 _LOGGER.info("Skipping update due to missing data: %s", key)

homeassistant/components/openuv/sensor.py

@@ -124,7 +124,14 @@ class OpenUvSensor(OpenUvEntity):
 
     async def async_update(self):
         """Update the state."""
-        data = self.openuv.data[DATA_UV]["result"]
+        data = self.openuv.data[DATA_UV].get("result")
+
+        if not data:
+            self._available = False
+            return
+
+        self._available = True
+
         if self._sensor_type == TYPE_CURRENT_OZONE_LEVEL:
             self._state = data["ozone"]
         elif self._sensor_type == TYPE_CURRENT_UV_INDEX: