Add command aliases to Vizio remote platform (#166839)

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

homeassistant/components/vizio/remote.py

@@ -23,6 +23,32 @@ from .coordinator import VizioConfigEntry, VizioDeviceCoordinator
 
 PARALLEL_UPDATES = 0
 
+# Maps native pyvizio key names to human-friendly aliases.
+# Keys are uppercase native names (e.g. "CC_TOGGLE"), values are lists of lowercase aliases.
+REMOTE_KEY_ALIASES: dict[str, list[str]] = {
+    "CC_TOGGLE": ["closed_captions", "cc"],
+    "CH_DOWN": ["channel_down"],
+    "CH_PREV": ["previous_channel"],
+    "CH_UP": ["channel_up"],
+    "INPUT_NEXT": ["next_input"],
+    "MUTE_TOGGLE": ["mute", "toggle_mute"],
+    "OK": ["enter", "select"],
+    "PIC_MODE": ["picture_mode"],
+    "PIC_SIZE": ["picture_size"],
+    "POW_OFF": ["off", "power_off"],
+    "POW_ON": ["on", "power_on"],
+    "POW_TOGGLE": ["power", "power_toggle", "toggle_power"],
+    "SEEK_BACK": ["reverse", "rewind"],
+    "SEEK_FWD": ["forward", "fast_forward", "ff"],
+    "VOL_DOWN": ["volume_down"],
+    "VOL_UP": ["volume_up"],
+}
+
+# Invert aliases into {alias: native_key} for O(1) lookup
+_ALIAS_LOOKUP: dict[str, str] = {
+    alias: key for key, aliases in REMOTE_KEY_ALIASES.items() for alias in aliases
+}
+
 
 async def async_setup_entry(
     hass: HomeAssistant,
@@ -49,7 +75,12 @@ class VizioRemote(CoordinatorEntity[VizioDeviceCoordinator], RemoteEntity):
         self._attr_device_info = DeviceInfo(identifiers={(DOMAIN, unique_id)})
         self._device = coordinator.device
         valid_keys = set(self._device.get_remote_keys_list())
+        # Map lowercased native keys to their original uppercase pyvizio names
         self._command_map: dict[str, str] = {key.lower(): key for key in valid_keys}
+        # Add aliases only for native keys this device actually supports
+        for alias, target in _ALIAS_LOOKUP.items():
+            if target in valid_keys:
+                self._command_map[alias] = target
 
     @property
     @override

tests/components/vizio/test_remote.py

@@ -110,6 +110,12 @@ async def test_turn_on_off(
         ("BACK", "BACK"),
         ("ch_up", "CH_UP"),
         ("SMARTCAST", "SMARTCAST"),
+        # Aliases
+        ("closed_captions", "CC_TOGGLE"),
+        ("channel_up", "CH_UP"),
+        ("enter", "OK"),
+        ("volume_down", "VOL_DOWN"),
+        ("VoLuMe_DoWn", "VOL_DOWN"),
     ],
 )
 @pytest.mark.usefixtures("vizio_connect", "vizio_update")
@@ -160,9 +166,13 @@ async def test_send_command_tv_invalid(
 @pytest.mark.parametrize(
     ("command", "expected_key"),
     [
+        # Native keys (one lowercase variant tested)
         ("MUTE_TOGGLE", "MUTE_TOGGLE"),
         ("pause", "PAUSE"),
         ("VOL_UP", "VOL_UP"),
+        # Aliases (only those whose target is a speaker key)
+        ("mute", "MUTE_TOGGLE"),
+        ("volume_down", "VOL_DOWN"),
     ],
 )
 @pytest.mark.usefixtures("vizio_connect", "vizio_update")
@@ -189,7 +199,17 @@ async def test_send_command_speaker_valid(
         mock_remote.assert_called_once_with(expected_key, log_api_exception=False)
 
 
-@pytest.mark.parametrize("command", ["MENU", "CH_UP", "INVALID_KEY"])
+@pytest.mark.parametrize(
+    "command",
+    [
+        "MENU",
+        "CH_UP",
+        # TV-only alias
+        "channel_up",
+        # Completely invalid
+        "INVALID_KEY",
+    ],
+)
 @pytest.mark.usefixtures("vizio_connect", "vizio_update")
 async def test_send_command_speaker_invalid(
     hass: HomeAssistant,