Shelly code quality - use properties for status (#83421)

homeassistant/components/shelly/entity.py

@@ -519,20 +519,21 @@ class ShellyRpcAttributeEntity(ShellyRpcEntity, entity.Entity):
         self._attr_name = get_rpc_entity_name(coordinator.device, key, description.name)
         self._last_value = None
 
+    @property
+    def sub_status(self) -> Any:
+        """Device status by entity key."""
+        return self.status[self.entity_description.sub_key]
+
     @property
     def attribute_value(self) -> StateType:
         """Value of sensor."""
         if callable(self.entity_description.value):
+            # using "get" here since subkey might not exist (e.g. "errors" sub_key)
             self._last_value = self.entity_description.value(
-                self.coordinator.device.status[self.key].get(
-                    self.entity_description.sub_key
-                ),
-                self._last_value,
+                self.status.get(self.entity_description.sub_key), self._last_value
             )
         else:
-            self._last_value = self.coordinator.device.status[self.key][
-                self.entity_description.sub_key
-            ]
+            self._last_value = self.sub_status
 
         return self._last_value
 
@@ -544,9 +545,7 @@ class ShellyRpcAttributeEntity(ShellyRpcEntity, entity.Entity):
         if not available or not self.entity_description.available:
             return available
 
-        return self.entity_description.available(
-            self.coordinator.device.status[self.key][self.entity_description.sub_key]
-        )
+        return self.entity_description.available(self.sub_status)
 
 
 class ShellySleepingBlockAttributeEntity(ShellyBlockAttributeEntity, RestoreEntity):

homeassistant/components/shelly/light.py

@@ -39,10 +39,12 @@ from .coordinator import ShellyBlockCoordinator, ShellyRpcCoordinator, get_entry
 from .entity import ShellyBlockEntity, ShellyRpcEntity
 from .utils import (
     async_remove_shelly_entity,
+    brightness_to_percentage,
     get_device_entry_gen,
     get_rpc_key_ids,
     is_block_channel_type_light,
     is_rpc_channel_type_light,
+    percentage_to_brightness,
 )
 
 
@@ -189,19 +191,15 @@ class BlockShellyLight(ShellyBlockEntity, LightEntity):
     @property
     def brightness(self) -> int:
         """Return the brightness of this light between 0..255."""
-        brightness_pct: int
         if self.mode == "color":
             if self.control_result:
-                brightness_pct = self.control_result["gain"]
-            else:
-                brightness_pct = cast(int, self.block.gain)
-        else:
-            if self.control_result:
-                brightness_pct = self.control_result["brightness"]
-            else:
-                brightness_pct = cast(int, self.block.brightness)
+                return percentage_to_brightness(self.control_result["gain"])
+            return percentage_to_brightness(cast(int, self.block.gain))
 
-        return round(255 * brightness_pct / 100)
+        # white mode
+        if self.control_result:
+            return percentage_to_brightness(self.control_result["brightness"])
+        return percentage_to_brightness(cast(int, self.block.brightness))
 
     @property
     def color_mode(self) -> ColorMode:
@@ -292,11 +290,10 @@ class BlockShellyLight(ShellyBlockEntity, LightEntity):
             )
 
         if ATTR_BRIGHTNESS in kwargs and brightness_supported(supported_color_modes):
-            brightness_pct = int(100 * (kwargs[ATTR_BRIGHTNESS] + 1) / 255)
             if hasattr(self.block, "gain"):
-                params["gain"] = brightness_pct
+                params["gain"] = brightness_to_percentage(kwargs[ATTR_BRIGHTNESS])
             if hasattr(self.block, "brightness"):
-                params["brightness"] = brightness_pct
+                params["brightness"] = brightness_to_percentage(kwargs[ATTR_BRIGHTNESS])
 
         if (
             ATTR_COLOR_TEMP_KELVIN in kwargs
@@ -386,7 +383,7 @@ class RpcShellySwitchAsLight(ShellyRpcEntity, LightEntity):
     @property
     def is_on(self) -> bool:
         """If light is on."""
-        return bool(self.coordinator.device.status[self.key]["output"])
+        return bool(self.status["output"])
 
     async def async_turn_on(self, **kwargs: Any) -> None:
         """Turn on light."""
@@ -411,20 +408,19 @@ class RpcShellyLight(ShellyRpcEntity, LightEntity):
     @property
     def is_on(self) -> bool:
         """If light is on."""
-        return bool(self.coordinator.device.status[self.key]["output"])
+        return bool(self.status["output"])
 
     @property
     def brightness(self) -> int:
         """Return the brightness of this light between 0..255."""
-        brightness_pct = self.coordinator.device.status[self.key]["brightness"]
-        return round(255 * brightness_pct / 100)
+        return percentage_to_brightness(self.status["brightness"])
 
     async def async_turn_on(self, **kwargs: Any) -> None:
         """Turn on light."""
         params: dict[str, Any] = {"id": self._id, "on": True}
 
         if ATTR_BRIGHTNESS in kwargs:
-            params["brightness"] = int(100 * (kwargs[ATTR_BRIGHTNESS] + 1) / 255)
+            params["brightness"] = brightness_to_percentage(kwargs[ATTR_BRIGHTNESS])
 
         await self.call_rpc("Light.Set", params)
 

homeassistant/components/shelly/switch.py

@@ -138,7 +138,7 @@ class RpcRelaySwitch(ShellyRpcEntity, SwitchEntity):
     @property
     def is_on(self) -> bool:
         """If switch is on."""
-        return bool(self.coordinator.device.status[self.key]["output"])
+        return bool(self.status["output"])
 
     async def async_turn_on(self, **kwargs: Any) -> None:
         """Turn on relay."""

homeassistant/components/shelly/update.py

@@ -251,9 +251,7 @@ class RpcUpdateEntity(ShellyRpcAttributeEntity, UpdateEntity):
     @property
     def latest_version(self) -> str | None:
         """Latest version available for install."""
-        new_version = self.entity_description.latest_version(
-            self.coordinator.device.status[self.key][self.entity_description.sub_key],
-        )
+        new_version = self.entity_description.latest_version(self.sub_status)
         if new_version:
             return cast(str, new_version)
 

homeassistant/components/shelly/utils.py

@@ -398,3 +398,13 @@ def device_update_info(
         dev_registry.async_update_device(
             device.id, sw_version=shellydevice.firmware_version
         )
+
+
+def brightness_to_percentage(brightness: int) -> int:
+    """Convert brightness level to percentage."""
+    return int(100 * (brightness + 1) / 255)
+
+
+def percentage_to_brightness(percentage: int) -> int:
+    """Convert percentage to brightness level."""
+    return round(255 * percentage / 100)