Improve error handling of powerview hub maintenance, remove invalid device classes (#73395)

homeassistant/components/hunterdouglas_powerview/button.py

@@ -7,11 +7,7 @@ from typing import Any, Final
 
 from aiopvapi.resources.shade import BaseShade, factory as PvShade
 
-from homeassistant.components.button import (
-    ButtonDeviceClass,
-    ButtonEntity,
-    ButtonEntityDescription,
-)
+from homeassistant.components.button import ButtonEntity, ButtonEntityDescription
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity import EntityCategory
@@ -50,7 +46,6 @@ BUTTONS: Final = [
         key="calibrate",
         name="Calibrate",
         icon="mdi:swap-vertical-circle-outline",
-        device_class=ButtonDeviceClass.UPDATE,
         entity_category=EntityCategory.DIAGNOSTIC,
         press_action=lambda shade: shade.calibrate(),
     ),
@@ -58,7 +53,6 @@ BUTTONS: Final = [
         key="identify",
         name="Identify",
         icon="mdi:crosshairs-question",
-        device_class=ButtonDeviceClass.UPDATE,
         entity_category=EntityCategory.DIAGNOSTIC,
         press_action=lambda shade: shade.jog(),
     ),

homeassistant/components/hunterdouglas_powerview/coordinator.py

@@ -36,9 +36,19 @@ class PowerviewShadeUpdateCoordinator(DataUpdateCoordinator[PowerviewShadeData])
 
     async def _async_update_data(self) -> PowerviewShadeData:
         """Fetch data from shade endpoint."""
+
         async with async_timeout.timeout(10):
             shade_entries = await self.shades.get_resources()
+
+        if isinstance(shade_entries, bool):
+            # hub returns boolean on a 204/423 empty response (maintenance)
+            # continual polling results in inevitable error
+            raise UpdateFailed("Powerview Hub is undergoing maintenance")
+
         if not shade_entries:
             raise UpdateFailed("Failed to fetch new shade data")
+
+        # only update if shade_entries is valid
         self.data.store_group_data(shade_entries[SHADE_DATA])
+
         return self.data