Component Automation - initial version

config/home-assistant.conf.example

@@ -79,3 +79,26 @@ unknown_light=group.living_room
 [browser]
 
 [keyboard]
+
+[automation]
+platform=state
+alias=Sun starts shining
+
+state_entity_id=sun.sun
+# Next two are optional, omit to match all
+state_from=below_horizon
+state_to=above_horizon
+
+execute_service=light.turn_off
+service_entity_id=group.living_room
+
+[automation 2]
+platform=time
+alias=Beer o Clock
+
+time_hours=16
+time_minutes=0
+time_seconds=0
+
+execute_service=notify.notify
+execute_service_data={"message":"It's 4, time for beer!"}

homeassistant/__init__.py

@@ -220,10 +220,10 @@ def _process_match_param(parameter):
     """ Wraps parameter in a list if it is not one and returns it. """
     if parameter is None or parameter == MATCH_ALL:
         return MATCH_ALL
-    elif isinstance(parameter, list):
-        return parameter
-    else:
+    elif isinstance(parameter, str) or not hasattr(parameter, '__iter__'):
         return (parameter,)
+    else:
+        return tuple(parameter)
 
 
 def _matcher(subject, pattern):
@@ -592,7 +592,7 @@ class StateMachine(object):
         if isinstance(entity_ids, str):
             entity_ids = (entity_ids.lower(),)
         else:
-            entity_ids = [entity_id.lower() for entity_id in entity_ids]
+            entity_ids = tuple(entity_id.lower() for entity_id in entity_ids)
 
         @ft.wraps(action)
         def state_listener(event):

homeassistant/components/automation/__init__.py

@@ -0,0 +1,71 @@
+"""
+homeassistant.components.automation
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Allows to setup simple automation rules via the config file.
+"""
+import logging
+import json
+
+from homeassistant.loader import get_component
+from homeassistant.helpers import config_per_platform
+from homeassistant.util import convert, split_entity_id
+from homeassistant.const import ATTR_ENTITY_ID
+
+DOMAIN = "automation"
+
+DEPENDENCIES = ["group"]
+
+CONF_ALIAS = "alias"
+CONF_SERVICE = "execute_service"
+CONF_SERVICE_ENTITY_ID = "service_entity_id"
+CONF_SERVICE_DATA = "service_data"
+
+_LOGGER = logging.getLogger(__name__)
+
+
+def setup(hass, config):
+    """ Sets up automation. """
+
+    for p_type, p_config in config_per_platform(config, DOMAIN, _LOGGER):
+        platform = get_component('automation.{}'.format(p_type))
+
+        if platform is None:
+            _LOGGER.error("Unknown automation platform specified: %s", p_type)
+            continue
+
+        if platform.register(hass, p_config, _get_action(hass, p_config)):
+            _LOGGER.info(
+                "Initialized %s rule %s", p_type, p_config.get(CONF_ALIAS, ""))
+        else:
+            _LOGGER.error(
+                "Error setting up rule %s", p_config.get(CONF_ALIAS, ""))
+
+    return True
+
+
+def _get_action(hass, config):
+    """ Return an action based on a config. """
+
+    def action():
+        """ Action to be executed. """
+        _LOGGER.info("Executing rule %s", config.get(CONF_ALIAS, ""))
+
+        if CONF_SERVICE in config:
+            domain, service = split_entity_id(config[CONF_SERVICE])
+
+            service_data = convert(
+                config.get(CONF_SERVICE_DATA), json.loads, {})
+
+            if not isinstance(service_data, dict):
+                _LOGGER.error(
+                    "%s should be a serialized JSON object", CONF_SERVICE_DATA)
+                service_data = {}
+
+            if CONF_SERVICE_ENTITY_ID in config:
+                service_data[ATTR_ENTITY_ID] = \
+                    config[CONF_SERVICE_ENTITY_ID].split(",")
+
+            hass.services.call(domain, service, service_data)
+
+    return action

homeassistant/components/automation/state.py

@@ -0,0 +1,37 @@
+"""
+homeassistant.components.automation.state
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Offers state listening automation rules.
+"""
+import logging
+
+from homeassistant.const import MATCH_ALL
+
+
+CONF_ENTITY_ID = "state_entity_id"
+CONF_FROM = "state_from"
+CONF_TO = "state_to"
+
+
+def register(hass, config, action):
+    """ Listen for state changes based on `config`. """
+    entity_id = config.get(CONF_ENTITY_ID)
+
+    if entity_id is None:
+        logging.getLogger(__name__).error(
+            "Missing configuration key %s", CONF_ENTITY_ID)
+        return False
+
+    from_state = config.get(CONF_FROM, MATCH_ALL)
+    to_state = config.get(CONF_TO, MATCH_ALL)
+
+    # pylint: disable=unused-argument
+    def state_automation_listener(entity, from_s, to_s):
+        """ Listens for state changes and calls action. """
+        action()
+
+    hass.states.track_change(
+        entity_id, state_automation_listener, from_state, to_state)
+
+    return True

homeassistant/components/automation/time.py

@@ -0,0 +1,29 @@
+"""
+homeassistant.components.automation.time
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Offers time listening automation rules.
+"""
+from homeassistant.util import convert
+
+CONF_HOURS = "time_hours"
+CONF_MINUTES = "time_minutes"
+CONF_SECONDS = "time_seconds"
+
+
+def register(hass, config, action):
+    """ Listen for state changes based on `config`. """
+    hours = convert(config.get(CONF_HOURS), int)
+    minutes = convert(config.get(CONF_MINUTES), int)
+    seconds = convert(config.get(CONF_SECONDS), int)
+
+    # pylint: disable=unused-argument
+    def time_automation_listener(now):
+        """ Listens for time changes and calls action. """
+        action()
+
+    hass.track_time_change(
+        time_automation_listener,
+        hour=hours, minute=minutes, second=seconds)
+
+    return True