Add the nest sensor for tracking data from nest

homeassistant/components/nest.py

@@ -0,0 +1,45 @@
+"""
+homeassistant.components.thermostat.nest
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+Adds support for Nest thermostats.
+
+For more details about this platform, please refer to the documentation at
+https://home-assistant.io/components/thermostat.nest/
+"""
+import logging
+
+from homeassistant.const import (CONF_USERNAME, CONF_PASSWORD)
+
+REQUIREMENTS = ['python-nest==2.6.0']
+DOMAIN = 'nest'
+
+NEST = None
+
+
+# pylint: disable=unused-argument
+def setup(hass, config):
+    """ Sets up the nest thermostat. """
+    global NEST
+
+    logger = logging.getLogger(__name__)
+    print("nest config", config[DOMAIN])
+    username = config[DOMAIN].get(CONF_USERNAME)
+    password = config[DOMAIN].get(CONF_PASSWORD)
+
+    if username is None or password is None:
+        logger.error("Missing required configuration items %s or %s",
+                     CONF_USERNAME, CONF_PASSWORD)
+        return
+
+    try:
+        import nest
+    except ImportError:
+        logger.exception(
+            "Error while importing dependency nest. "
+            "Did you maybe not install the python-nest dependency?")
+
+        return
+
+    NEST = nest.Nest(username, password)
+
+    return True

homeassistant/components/sensor/nest.py

@@ -0,0 +1,116 @@
+"""
+homeassistant.components.sensor.nest
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+Support for Nest Thermostat Sensors.
+
+For more details about this platform, please refer to the documentation at
+https://home-assistant.io/components/sensor.nest/
+"""
+from homeassistant.helpers.entity import Entity
+from homeassistant.const import (STATE_ON, STATE_OFF, TEMP_CELCIUS)
+from homeassistant.helpers.temperature import convert
+
+import homeassistant.components.nest as nest
+import logging
+import socket
+
+DEPENDENCIES = ['nest']
+SENSOR_TYPES = ['humidity',
+                'mode',
+                'last_ip',
+                'local_ip',
+                'last_connection',
+                'battery_level']
+
+BINARY_TYPES = ['fan',
+                'hvac_ac_state',
+                'hvac_aux_heater_state',
+                'hvac_heat_x2_state',
+                'hvac_heat_x3_state',
+                'hvac_alt_heat_state',
+                'hvac_alt_heat_x2_state',
+                'hvac_emer_heat_state',
+                'online']
+
+SENSOR_UNITS = {'humidity': '%', 'battery_level': '%'}
+
+SENSOR_TEMP_TYPES = ['temperature',
+                     'target',
+                     'away_temperature[0]',
+                     'away_temperature[1]']
+
+def setup_platform(hass, config, add_devices, discovery_info=None):
+    logger = logging.getLogger(__name__)
+    try:
+        for structure in nest.NEST.structures:
+            for device in structure.devices:
+                for variable in config['monitored_conditions']:
+                    if variable in SENSOR_TYPES:
+                        add_devices([NestSensor(structure, device, variable)])
+                    elif variable in BINARY_TYPES:
+                        add_devices([NestBinarySensor(structure, device, variable)])
+                    elif variable in SENSOR_TEMP_TYPES:
+                        add_devices([NestTempSensor(structure, device, variable)])
+                    else:
+                        logger.error('Nest sensor type: "%s" does not exist', variable)
+    except socket.error:
+        logger.error(
+            "Connection error logging into the nest web service."
+        )
+
+class NestSensor(Entity):
+    """ Represents a Nest sensor. """
+
+    def __init__(self, structure, device, variable):
+        self.structure = structure
+        self.device = device
+        self.variable = variable
+
+    @property
+    def name(self):
+        """ Returns the name of the nest, if any. """
+        location = self.device.where
+        name = self.device.name
+        if location is None:
+            return name + ' ' + self.variable
+        else:
+            if name == '':
+                return location.capitalize() + ' ' + self.variable
+            else:
+                return location.capitalize() + '(' + name + ')' + self.variable
+    @property
+    def state(self):
+        """ Returns the state of the sensor. """
+        return getattr(self.device, self.variable)
+
+    @property
+    def unit_of_measurement(self):
+        return SENSOR_UNITS.get(self.variable, None)
+
+class NestTempSensor(NestSensor):
+    """ Represents a Nest Temperature sensor. """
+
+    @property
+    def unit_of_measurement(self):
+        return self.hass.config.temperature_unit
+
+    @property
+    def state(self):
+        temp = getattr(self.device, self.variable)
+        if temp is None:
+            return None
+
+        value = convert(temp, TEMP_CELCIUS,
+                        self.hass.config.temperature_unit)
+
+        return round(value, 1)
+
+class NestBinarySensor(NestSensor):
+    """ Represents a Nst Binary sensor. """
+
+    @property
+    def state(self):
+        if getattr(self.device, self.variable):
+            return STATE_ON
+        else:
+            return STATE_OFF

homeassistant/components/thermostat/nest.py

@@ -11,38 +11,18 @@ import logging
 
 from homeassistant.components.thermostat import (ThermostatDevice, STATE_COOL,
                                                  STATE_IDLE, STATE_HEAT)
-from homeassistant.const import (CONF_USERNAME, CONF_PASSWORD, TEMP_CELCIUS)
+from homeassistant.const import (TEMP_CELCIUS)
+import homeassistant.components.nest as nest
 
-REQUIREMENTS = ['python-nest==2.6.0']
+DEPENDENCIES = ['nest']
 
-
-# pylint: disable=unused-argument
 def setup_platform(hass, config, add_devices, discovery_info=None):
-    """ Sets up the nest thermostat. """
     logger = logging.getLogger(__name__)
 
-    username = config.get(CONF_USERNAME)
-    password = config.get(CONF_PASSWORD)
-
-    if username is None or password is None:
-        logger.error("Missing required configuration items %s or %s",
-                     CONF_USERNAME, CONF_PASSWORD)
-        return
-
-    try:
-        import nest
-    except ImportError:
-        logger.exception(
-            "Error while importing dependency nest. "
-            "Did you maybe not install the python-nest dependency?")
-
-        return
-
-    napi = nest.Nest(username, password)
     try:
         add_devices([
             NestThermostat(structure, device)
-            for structure in napi.structures
+            for structure in nest.NEST.structures
             for device in structure.devices
         ])
     except socket.error:
@@ -50,7 +30,6 @@ def setup_platform(hass, config, add_devices, discovery_info=None):
             "Connection error logging into the nest web service."
         )
 
-
 class NestThermostat(ThermostatDevice):
     """ Represents a Nest thermostat. """