From ff9cbd14182b73b8560ab4a44d9d2d6296181dc5 Mon Sep 17 00:00:00 2001
From: Raman Gupta <7243222+raman325@users.noreply.github.com>
Date: Tue, 15 Sep 2026 14:25:18 -0400
Subject: [PATCH] Use Vizio state extended capability detection (#181569)

---
 homeassistant/components/vizio/coordinator.py | 14 +++++++------
 tests/components/vizio/test_init.py           | 20 ++++++++++++++-----
 2 files changed, 23 insertions(+), 11 deletions(-)

diff --git a/homeassistant/components/vizio/coordinator.py b/homeassistant/components/vizio/coordinator.py
index 140f9aba9759..6a3b15e68335 100644
--- a/homeassistant/components/vizio/coordinator.py
+++ b/homeassistant/components/vizio/coordinator.py
@@ -18,6 +18,7 @@ from vizaio import (
     VizioAuthError,
     VizioError,
     VizioNotFoundError,
+    VizioUnsupportedError,
     fetch_app_availability,
     fetch_remote_app_catalog,
     is_app_input,
@@ -151,10 +152,9 @@ class VizioDeviceCoordinator(DataUpdateCoordinator[VizioDeviceData]):
             update_interval=SCAN_INTERVAL,
         )
         self.device = device
-        # Modern TV firmware bundles power/input/app state into one endpoint;
-        # firmware without it never gains it, so probe only until the first
-        # URI_NOT_FOUND response. Audio devices do not support this endpoint.
-        self._use_state_extended = device.profile.has_inputs
+        # Supported firmware bundles power/input/app state into one endpoint.
+        # Probe until the library reports that the endpoint is unavailable.
+        self._use_state_extended = True
 
     @override
     async def _async_setup(self) -> None:
@@ -193,8 +193,10 @@ class VizioDeviceCoordinator(DataUpdateCoordinator[VizioDeviceData]):
             try:
                 state = await self.device.get_state_extended()
             except VizioAuthError as err:
-                raise ConfigEntryAuthFailed from err
-            except VizioNotFoundError:
+                if self.device.profile.requires_auth:
+                    raise ConfigEntryAuthFailed from err
+                self._use_state_extended = False
+            except VizioNotFoundError, VizioUnsupportedError:
                 self._use_state_extended = False
             except VizioError as err:
                 raise self._update_failed() from err
diff --git a/tests/components/vizio/test_init.py b/tests/components/vizio/test_init.py
index 62fcc12a9abc..c66101c894b6 100644
--- a/tests/components/vizio/test_init.py
+++ b/tests/components/vizio/test_init.py
@@ -11,7 +11,9 @@ from vizaio import (
     DeviceType,
     VizioAuthError,
     VizioConnectionError,
+    VizioError,
     VizioNotFoundError,
+    VizioUnsupportedError,
 )
 from vizaio.profiles import SOUNDBAR_PROFILE
 
@@ -228,18 +230,18 @@ async def test_state_extended_polling(
 
 
 @pytest.mark.usefixtures("vizio_connect")
-async def test_soundbar_does_not_poll_state_extended(
+async def test_soundbar_state_extended_auth_failure_falls_back(
     hass: HomeAssistant,
     mock_speaker_config_entry: MockConfigEntry,
     mock_vizio: AsyncMock,
 ) -> None:
-    """Test soundbars use the unauthenticated power endpoint."""
+    """Test soundbars fall back when state_extended rejects no token."""
     mock_vizio.profile = SOUNDBAR_PROFILE
     mock_vizio.get_state_extended.side_effect = VizioAuthError("token required")
 
     await setup_integration(hass, mock_speaker_config_entry)
 
-    mock_vizio.get_state_extended.assert_not_called()
+    mock_vizio.get_state_extended.assert_called_once()
     mock_vizio.get_power_state.assert_called_once()
     assert not hass.config_entries.flow.async_progress_by_handler(DOMAIN)
 
@@ -259,15 +261,23 @@ async def test_state_extended_power_off(
     mock_vizio.get_settings.assert_not_called()
 
 
+@pytest.mark.parametrize(
+    "error",
+    [
+        pytest.param(VizioNotFoundError("not found"), id="not_found"),
+        pytest.param(VizioUnsupportedError("not supported"), id="unsupported"),
+    ],
+)
 @pytest.mark.usefixtures("vizio_connect")
 async def test_state_extended_probed_only_once(
     hass: HomeAssistant,
     mock_tv_config_entry: MockConfigEntry,
     mock_vizio: AsyncMock,
     freezer: FrozenDateTimeFactory,
+    error: VizioError,
 ) -> None:
-    """Test firmware without state_extended is not re-probed every refresh."""
-    mock_vizio.get_state_extended.side_effect = VizioNotFoundError("not supported")
+    """Test unavailable state_extended is not re-probed every refresh."""
+    mock_vizio.get_state_extended.side_effect = error
 
     await setup_integration(hass, mock_tv_config_entry)
     mock_vizio.get_state_extended.reset_mock()