Add support for attribute caching to the remote platform

Builds on #100601

homeassistant/components/remote/__init__.py

@@ -6,7 +6,7 @@
 from enum import IntFlag
 import functools as ft
 import logging
-from typing import Any, final
+from typing import TYPE_CHECKING, Any, final
 
 import voluptuous as vol
 
@@ -35,6 +35,12 @@
 from homeassistant.helpers.typing import ConfigType
 from homeassistant.loader import bind_hass
 
+if TYPE_CHECKING:
+    from functools import cached_property
+else:
+    from homeassistant.backports.functools import cached_property
+
+
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_ACTIVITY = "activity"
@@ -174,25 +180,32 @@ class RemoteEntityDescription(ToggleEntityDescription, frozen_or_thawed=True):
     """A class that describes remote entities."""
 
 
-class RemoteEntity(ToggleEntity):
+CACHED_PROPERTIES_WITH_ATTR_ = {
+    "supported_features",
+    "current_activity",
+    "activity_list",
+}
+
+
+class RemoteEntity(ToggleEntity, cached_properties=CACHED_PROPERTIES_WITH_ATTR_):
     """Base class for remote entities."""
 
     entity_description: RemoteEntityDescription
     _attr_activity_list: list[str] | None = None
     _attr_current_activity: str | None = None
     _attr_supported_features: RemoteEntityFeature = RemoteEntityFeature(0)
 
-    @property
+    @cached_property
     def supported_features(self) -> RemoteEntityFeature:
         """Flag supported features."""
         return self._attr_supported_features
 
-    @property
+    @cached_property
     def current_activity(self) -> str | None:
         """Active activity."""
         return self._attr_current_activity
 
-    @property
+    @cached_property
     def activity_list(self) -> list[str] | None:
         """List of available activities."""
         return self._attr_activity_list