Add device automation action (#26455)

* Add support for device actions, with light as example.

* Add translation; return list

homeassistant/helpers/script.py

@@ -9,7 +9,7 @@ from typing import Optional, Sequence, Callable, Dict, List, Set, Tuple
 import voluptuous as vol
 
 from homeassistant.core import HomeAssistant, Context, callback, CALLBACK_TYPE
-from homeassistant.const import CONF_CONDITION, CONF_TIMEOUT
+from homeassistant.const import CONF_CONDITION, CONF_DEVICE, CONF_DOMAIN, CONF_TIMEOUT
 from homeassistant import exceptions
 from homeassistant.helpers import (
     service,
@@ -22,6 +22,7 @@ from homeassistant.helpers.event import (
     async_track_template,
 )
 from homeassistant.helpers.typing import ConfigType
+from homeassistant.loader import async_get_integration
 import homeassistant.util.dt as date_util
 from homeassistant.util.async_ import run_coroutine_threadsafe, run_callback_threadsafe
 
@@ -48,6 +49,7 @@ ACTION_WAIT_TEMPLATE = "wait_template"
 ACTION_CHECK_CONDITION = "condition"
 ACTION_FIRE_EVENT = "event"
 ACTION_CALL_SERVICE = "call_service"
+ACTION_DEVICE_AUTOMATION = "device"
 
 
 def _determine_action(action):
@@ -64,6 +66,9 @@ def _determine_action(action):
     if CONF_EVENT in action:
         return ACTION_FIRE_EVENT
 
+    if CONF_DEVICE in action:
+        return ACTION_DEVICE_AUTOMATION
+
     return ACTION_CALL_SERVICE
 
 
@@ -117,6 +122,7 @@ class Script:
             ACTION_CHECK_CONDITION: self._async_check_condition,
             ACTION_FIRE_EVENT: self._async_fire_event,
             ACTION_CALL_SERVICE: self._async_call_service,
+            ACTION_DEVICE_AUTOMATION: self._async_device_automation,
         }
 
     @property
@@ -318,6 +324,17 @@ class Script:
             context=context,
         )
 
+    async def _async_device_automation(self, action, variables, context):
+        """Perform the device automation specified in the action.
+
+        This method is a coroutine.
+        """
+        self.last_action = action.get(CONF_ALIAS, "device automation")
+        self._log("Executing step %s" % self.last_action)
+        integration = await async_get_integration(self.hass, action[CONF_DOMAIN])
+        platform = integration.get_platform("device_automation")
+        await platform.async_action_from_config(self.hass, action, variables, context)
+
     async def _async_fire_event(self, action, variables, context):
         """Fire an event."""
         self.last_action = action.get(CONF_ALIAS, action[CONF_EVENT])