only show supported presets

homeassistant/components/vicare/fan.py

@@ -104,23 +104,17 @@ async def async_setup_entry(
             ViCareFan(get_device_serial(device.api), device.config, device.api)
             for device in device_list
             if isinstance(device.api, PyViCareVentilationDevice)
-        ]
+        ],
+        True,
     )
 
 
 class ViCareFan(ViCareEntity, FanEntity):
     """Representation of the ViCare ventilation device."""
 
-    _attr_preset_modes = list[str](
-        [
-            VentilationMode.PERMANENT,
-            VentilationMode.VENTILATION,
-            VentilationMode.SENSOR_DRIVEN,
-            VentilationMode.SENSOR_OVERRIDE,
-        ]
-    )
+    _attr_preset_modes: list[str] | None = None
     _attr_speed_count = len(ORDERED_NAMED_FAN_SPEEDS)
-    _attr_supported_features = FanEntityFeature.SET_SPEED | FanEntityFeature.PRESET_MODE
+    _attr_supported_features = FanEntityFeature.SET_SPEED
     _attr_translation_key = "ventilation"
     _enable_turn_on_off_backwards_compatibility = False
 
@@ -137,6 +131,18 @@ class ViCareFan(ViCareEntity, FanEntity):
 
     def update(self) -> None:
         """Update state of fan."""
+
+        # init presets
+        if self._attr_preset_modes is None:
+            supported_modes = list[str](self._api.getAvailableModes())
+            self._attr_preset_modes = [
+                mode
+                for mode in VentilationMode
+                if VentilationMode.to_vicare_mode(mode) in supported_modes
+            ]
+            if len(self._attr_preset_modes) > 0:
+                self._attr_supported_features |= FanEntityFeature.PRESET_MODE
+
         try:
             with suppress(PyViCareNotSupportedFeatureError):
                 self._attr_preset_mode = VentilationMode.from_vicare_mode(