From 84747ada668a2f07893e2b4093a586c4432b5e5f Mon Sep 17 00:00:00 2001
From: epenet <6771947+epenet@users.noreply.github.com>
Date: Wed, 3 Aug 2022 21:22:30 +0200
Subject: [PATCH] Use attributes in decora light (#76047)

---
 homeassistant/components/decora/light.py | 66 ++++++++----------------
 1 file changed, 22 insertions(+), 44 deletions(-)

diff --git a/homeassistant/components/decora/light.py b/homeassistant/components/decora/light.py
index 9dbc031d476..c6fae73bc28 100644
--- a/homeassistant/components/decora/light.py
+++ b/homeassistant/components/decora/light.py
@@ -6,7 +6,7 @@ import copy
 from functools import wraps
 import logging
 import time
-from typing import TypeVar
+from typing import TYPE_CHECKING, Any, TypeVar
 
 from bluepy.btle import BTLEException  # pylint: disable=import-error
 import decora  # pylint: disable=import-error
@@ -21,10 +21,13 @@ from homeassistant.components.light import (
     LightEntity,
 )
 from homeassistant.const import CONF_API_KEY, CONF_DEVICES, CONF_NAME
-from homeassistant.core import HomeAssistant
 import homeassistant.helpers.config_validation as cv
-from homeassistant.helpers.entity_platform import AddEntitiesCallback
-from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
+
+if TYPE_CHECKING:
+    from homeassistant.core import HomeAssistant
+    from homeassistant.helpers.entity_platform import AddEntitiesCallback
+    from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
+
 
 _DecoraLightT = TypeVar("_DecoraLightT", bound="DecoraLight")
 _R = TypeVar("_R")
@@ -110,65 +113,40 @@ class DecoraLight(LightEntity):
     _attr_color_mode = ColorMode.BRIGHTNESS
     _attr_supported_color_modes = {ColorMode.BRIGHTNESS}
 
-    def __init__(self, device):
+    def __init__(self, device: dict[str, Any]) -> None:
         """Initialize the light."""
 
-        self._name = device["name"]
-        self._address = device["address"]
+        self._attr_name = device["name"]
+        self._attr_unique_id = device["address"]
         self._key = device["key"]
-        self._switch = decora.decora(self._address, self._key)
-        self._brightness = 0
-        self._state = False
-
-    @property
-    def unique_id(self):
-        """Return the ID of this light."""
-        return self._address
-
-    @property
-    def name(self):
-        """Return the name of the device if any."""
-        return self._name
-
-    @property
-    def is_on(self):
-        """Return true if device is on."""
-        return self._state
-
-    @property
-    def brightness(self):
-        """Return the brightness of this light between 0..255."""
-        return self._brightness
-
-    @property
-    def assumed_state(self):
-        """We can read the actual state."""
-        return False
+        self._switch = decora.decora(device["address"], self._key)
+        self._attr_brightness = 0
+        self._attr_is_on = False
 
     @retry
-    def set_state(self, brightness):
+    def set_state(self, brightness: int) -> None:
         """Set the state of this lamp to the provided brightness."""
         self._switch.set_brightness(int(brightness / 2.55))
-        self._brightness = brightness
+        self._attr_brightness = brightness
 
     @retry
-    def turn_on(self, **kwargs):
+    def turn_on(self, **kwargs: Any) -> None:
         """Turn the specified or all lights on."""
         brightness = kwargs.get(ATTR_BRIGHTNESS)
         self._switch.on()
-        self._state = True
+        self._attr_is_on = True
 
         if brightness is not None:
             self.set_state(brightness)
 
     @retry
-    def turn_off(self, **kwargs):
+    def turn_off(self, **kwargs: Any) -> None:
         """Turn the specified or all lights off."""
         self._switch.off()
-        self._state = False
+        self._attr_is_on = False
 
     @retry
-    def update(self):
+    def update(self) -> None:
         """Synchronise internal state with the actual light state."""
-        self._brightness = self._switch.get_brightness() * 2.55
-        self._state = self._switch.get_on()
+        self._attr_brightness = self._switch.get_brightness() * 2.55
+        self._attr_is_on = self._switch.get_on()