Use asyncio Lock for fibaro light (#18622)

* Use asyncio Lock for fibaro light

* line length and empty line at end

* async turn_off

Turned the turn_off into async as well

* bless you, blank lines...

My local flake8 lies to me. Not cool.

homeassistant/components/light/fibaro.py

@@ -6,7 +6,8 @@ https://home-assistant.io/components/light.fibaro/
 """
 
 import logging
-import threading
+import asyncio
+from functools import partial
 
 from homeassistant.components.light import (
     ATTR_BRIGHTNESS, ATTR_HS_COLOR, ATTR_WHITE_VALUE, ENTITY_ID_FORMAT,
@@ -37,12 +38,15 @@ def scaleto100(value):
     return max(0, min(100, ((value * 100.4) / 255.0)))
 
 
-def setup_platform(hass, config, add_entities, discovery_info=None):
+async def async_setup_platform(hass,
+                               config,
+                               async_add_entities,
+                               discovery_info=None):
     """Perform the setup for Fibaro controller devices."""
     if discovery_info is None:
         return
 
-    add_entities(
+    async_add_entities(
         [FibaroLight(device, hass.data[FIBARO_CONTROLLER])
          for device in hass.data[FIBARO_DEVICES]['light']], True)
 
@@ -58,7 +62,7 @@ class FibaroLight(FibaroDevice, Light):
         self._brightness = None
         self._white = 0
 
-        self._update_lock = threading.RLock()
+        self._update_lock = asyncio.Lock()
         if 'levelChange' in fibaro_device.interfaces:
             self._supported_flags |= SUPPORT_BRIGHTNESS
         if 'color' in fibaro_device.properties:
@@ -88,9 +92,14 @@ class FibaroLight(FibaroDevice, Light):
         """Flag supported features."""
         return self._supported_flags
 
-    def turn_on(self, **kwargs):
+    async def async_turn_on(self, **kwargs):
         """Turn the light on."""
-        with self._update_lock:
+        async with self._update_lock:
+            await self.hass.async_add_executor_job(
+                partial(self._turn_on, **kwargs))
+
+    def _turn_on(self, **kwargs):
+        """Really turn the light on."""
         if self._supported_flags & SUPPORT_BRIGHTNESS:
             target_brightness = kwargs.get(ATTR_BRIGHTNESS)
 
@@ -128,10 +137,15 @@ class FibaroLight(FibaroDevice, Light):
         # The simplest case is left for last. No dimming, just switch on
         self.call_turn_on()
 
-    def turn_off(self, **kwargs):
+    async def async_turn_off(self, **kwargs):
         """Turn the light off."""
+        async with self._update_lock:
+            await self.hass.async_add_executor_job(
+                partial(self._turn_off, **kwargs))
+
+    def _turn_off(self, **kwargs):
+        """Really turn the light off."""
         # Let's save the last brightness level before we switch it off
-        with self._update_lock:
         if (self._supported_flags & SUPPORT_BRIGHTNESS) and \
                 self._brightness and self._brightness > 0:
             self._last_brightness = self._brightness
@@ -143,10 +157,14 @@ class FibaroLight(FibaroDevice, Light):
         """Return true if device is on."""
         return self.current_binary_state
 
-    def update(self):
-        """Call to update state."""
+    async def async_update(self):
+        """Update the state."""
+        async with self._update_lock:
+            await self.hass.async_add_executor_job(self._update)
+
+    def _update(self):
+        """Really update the state."""
         # Brightness handling
-        with self._update_lock:
         if self._supported_flags & SUPPORT_BRIGHTNESS:
             self._brightness = float(self.fibaro_device.properties.value)
         # Color handling