Fix group entity availability handling

tests/test_fan.py

@@ -362,6 +362,36 @@ async def test_zha_group_fan_entity(
     # test that group fan is now off
     assert entity.state["is_on"] is False
 
+    assert entity.state["available"] is True
+
+    device_fan_1.on_network = False
+    device_fan_2.on_network = False
+    await asyncio.sleep(0.1)
+    await zha_gateway.async_block_till_done()
+
+    assert entity.state["available"] is False
+
+    device_fan_1.on_network = True
+    device_fan_2.on_network = True
+    await asyncio.sleep(0.1)
+    await zha_gateway.async_block_till_done()
+
+    assert entity.state["available"] is True
+
+    device_fan_1.available = False
+    device_fan_2.available = False
+    await asyncio.sleep(0.1)
+    await zha_gateway.async_block_till_done()
+
+    assert entity.state["available"] is False
+
+    device_fan_1.available = True
+    device_fan_2.available = True
+    await asyncio.sleep(0.1)
+    await zha_gateway.async_block_till_done()
+
+    assert entity.state["available"] is True
+
 
 @patch(
     "zigpy.zcl.clusters.hvac.Fan.write_attributes",

tests/test_light.py

@@ -920,6 +920,36 @@ async def test_zha_group_light_entity(
     await zha_gateway.async_block_till_done()
     assert bool(entity.state["on"]) is True
 
+    assert entity.state["available"] is True
+
+    device_light_1.on_network = False
+    device_light_2.on_network = False
+    await asyncio.sleep(0.1)
+    await zha_gateway.async_block_till_done()
+
+    assert entity.state["available"] is False
+
+    device_light_1.on_network = True
+    device_light_2.on_network = True
+    await asyncio.sleep(0.1)
+    await zha_gateway.async_block_till_done()
+
+    assert entity.state["available"] is True
+
+    device_light_1.available = False
+    device_light_2.available = False
+    await asyncio.sleep(0.1)
+    await zha_gateway.async_block_till_done()
+
+    assert entity.state["available"] is False
+
+    device_light_1.available = True
+    device_light_2.available = True
+    await asyncio.sleep(0.1)
+    await zha_gateway.async_block_till_done()
+
+    assert entity.state["available"] is True
+
     # turn it off to test a new member add being tracked
     await send_attributes_report(zha_gateway, dev1_cluster_on_off, {0: 0})
     await zha_gateway.async_block_till_done()

tests/test_switch.py

@@ -350,6 +350,36 @@ async def test_zha_group_switch_entity(
     # test that group light is now back on
     assert bool(entity.state["state"]) is True
 
+    assert entity.state["available"] is True
+
+    device_switch_1.on_network = False
+    device_switch_2.on_network = False
+    await asyncio.sleep(0.1)
+    await zha_gateway.async_block_till_done()
+
+    assert entity.state["available"] is False
+
+    device_switch_1.on_network = True
+    device_switch_2.on_network = True
+    await asyncio.sleep(0.1)
+    await zha_gateway.async_block_till_done()
+
+    assert entity.state["available"] is True
+
+    device_switch_1.available = False
+    device_switch_2.available = False
+    await asyncio.sleep(0.1)
+    await zha_gateway.async_block_till_done()
+
+    assert entity.state["available"] is False
+
+    device_switch_1.available = True
+    device_switch_2.available = True
+    await asyncio.sleep(0.1)
+    await zha_gateway.async_block_till_done()
+
+    assert entity.state["available"] is True
+
 
 class WindowDetectionFunctionQuirk(CustomDevice):
     """Quirk with window detection function attribute."""

zha/application/platforms/__init__.py

@@ -421,7 +421,7 @@ def __init__(
             _LOGGER,
             cooldown=update_group_from_member_delay,
             immediate=False,
-            function=self.async_update,
+            function=self.update,
         )
         self._group.register_group_entity(self)
 
@@ -442,6 +442,21 @@ def info_object(self) -> BaseEntityInfo:
             group_id=self.group_id,
         )
 
+    @property
+    def state(self) -> dict[str, Any]:
+        """Return the arguments to use in the command."""
+        state = super().state
+        state["available"] = self.available
+        return state
+
+    @property
+    def available(self) -> bool:
+        """Return true if all member entities are available."""
+        return any(
+            platform_entity.available
+            for platform_entity in self._group.get_platform_entities(self.PLATFORM)
+        )
+
     @property
     def group_id(self) -> int:
         """Return the group id."""

zha/application/platforms/fan/__init__.py

@@ -287,7 +287,6 @@ def __init__(self, group: Group):
         """Initialize a fan group."""
         self._fan_cluster_handler: ClusterHandler = group.endpoint[hvac.Fan.cluster_id]
         super().__init__(group)
-        self._available: bool = False
         self._percentage = None
         self._preset_mode = None
         if hasattr(self, "info_object"):
@@ -355,7 +354,6 @@ def update(self, _: Any = None) -> None:
             "All platform entity states for group entity members: %s", all_states
         )
 
-        self._available = any(entity.available for entity in platform_entities)
         percentage_states: list[dict] = [
             state for state in all_states if state.get(ATTR_PERCENTAGE)
         ]

zha/application/platforms/light/__init__.py

@@ -113,7 +113,6 @@ def __init__(self, *args, **kwargs):
         """Initialize the light."""
         self._device: Device = None
         super().__init__(*args, **kwargs)
-        self._available: bool = False
         self._min_mireds: int | None = 153
         self._max_mireds: int | None = 500
         self._hs_color: tuple[float, float] | None = None
@@ -1207,12 +1206,6 @@ def info_object(self) -> LightEntityInfo:
             max_mireds=self.max_mireds,
         )
 
-    # remove this when all ZHA platforms and base entities are updated
-    @property
-    def available(self) -> bool:
-        """Return entity availability."""
-        return self._available
-
     async def on_remove(self) -> None:
         """Cancel tasks this entity owns."""
         await super().on_remove()
@@ -1261,10 +1254,6 @@ def update(self, _: Any = None) -> None:
             self._off_with_transition = False
             self._off_brightness = None
 
-        self._available = any(
-            platform_entity.device.available for platform_entity in platform_entities
-        )
-
         self._brightness = reduce_attribute(on_states, ATTR_BRIGHTNESS)
 
         self._xy_color = reduce_attribute(on_states, ATTR_XY_COLOR, reduce=mean_tuple)

zha/application/platforms/switch.py

@@ -179,7 +179,6 @@ def update(self, _: Any | None = None) -> None:
         on_states = [state for state in all_states if state["state"]]
 
         self._state = len(on_states) > 0
-        self._available = any(entity.available for entity in platform_entities)
 
         self.maybe_emit_state_changed_event()