Powerview hub implementation

.coveragerc

@@ -149,6 +149,7 @@ omit =
     homeassistant/components/sensor/transmission.py
     homeassistant/components/sensor/twitch.py
     homeassistant/components/sensor/worldclock.py
+    homeassistant/components/scene/powerview.py
     homeassistant/components/switch/arest.py
     homeassistant/components/switch/edimax.py
     homeassistant/components/switch/dlink.py
@@ -162,6 +163,7 @@ omit =
     homeassistant/components/thermostat/proliphix.py
     homeassistant/components/thermostat/radiotherm.py
 
+
 [report]
 # Regexes for lines to exclude from consideration
 exclude_lines =

homeassistant/components/scene/powerview.py

@@ -0,0 +1,68 @@
+"""
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+Gets powerview scenes from a powerview hub
+defined by a Hunter Douglas powerview app.
+
+For more details about this component, please refer to the documentation at
+https://home-assistant.io/components/scene/
+"""
+
+import logging
+
+from homeassistant.components.scene import Scene
+
+_LOGGER = logging.getLogger(__name__)
+REQUIREMENTS = [
+    'https://github.com/sander76/powerviewApi/'
+    'archive/master.zip#powerview_api==0.2']
+
+HUB_ADDRESS = 'address'
+
+
+# pylint: disable=unused-argument
+def setup_platform(hass, config, add_devices, discovery_info=None):
+    """sets up the powerview scenes stored in a powerview hub"""
+    import powerview
+
+    hub_address = config.get(HUB_ADDRESS)
+
+    _pv = powerview.PowerView(hub_address)
+    try:
+        _scenes = _pv.get_scenes()
+        _rooms = _pv.get_rooms()
+    except ConnectionError:
+        _LOGGER.exception("error connecting to powerview "
+                          "hub with ip address: %s", hub_address)
+        return False
+    add_devices(PowerViewScene(hass, scene, _rooms, _pv)
+                for scene in _scenes['sceneData'])
+
+    return True
+
+
+class PowerViewScene(Scene):
+    """ A scene is a group of entities and the states we want them to be. """
+
+    def __init__(self, hass, scene_data, room_data, pv_instance):
+        self.pv_instance = pv_instance
+        self.hass = hass
+        self.scene_data = scene_data
+        self._sync_room_data(room_data)
+
+    def _sync_room_data(self, room_data):
+        room = next((room for room in room_data["roomData"]
+                     if room["id"] == self.scene_data["roomId"]), None)
+        if room is not None:
+            self.scene_data["roomName"] = room["name"]
+
+    @property
+    def name(self):
+        return self.scene_data["name"]
+
+    @property
+    def device_state_attributes(self):
+        return {"roomName": self.scene_data["roomName"]}
+
+    def activate(self):
+        """ Activates scene. Tries to get entities into requested state. """
+        self.pv_instance.activate_scene(self.scene_data["id"])

requirements_all.txt

@@ -90,6 +90,9 @@ https://github.com/rkabadi/pyedimax/archive/365301ce3ff26129a7910c501ead09ea625f
 # homeassistant.components.sensor.temper
 https://github.com/rkabadi/temper-python/archive/3dbdaf2d87b8db9a3cd6e5585fc704537dd2d09b.zip#temperusb==1.2.3
 
+# homeassistant.components.scene.powerview
+https://github.com/sander76/powerviewApi/archive/master.zip#powerview_api==0.2
+
 # homeassistant.components.mysensors
 https://github.com/theolind/pymysensors/archive/f0c928532167fb24823efa793ec21ca646fd37a6.zip#pymysensors==0.5