PVOutput sensor (#4203)

* Add PVOutput sensor

* Remove attributes

* Revert `verify_ssl` back to true

.coveragerc

@@ -286,6 +286,7 @@ omit =
     homeassistant/components/sensor/openweathermap.py
     homeassistant/components/sensor/pi_hole.py
     homeassistant/components/sensor/plex.py
+    homeassistant/components/sensor/pvoutput.py
     homeassistant/components/sensor/sabnzbd.py
     homeassistant/components/sensor/scrape.py
     homeassistant/components/sensor/serial_pm.py

homeassistant/components/sensor/pvoutput.py

@@ -0,0 +1,117 @@
+"""
+Support for getting collected information from PVOutput.
+
+For more details about this platform, please refer to the documentation at
+https://home-assistant.io/components/sensor.pvoutput/
+"""
+import logging
+from collections import namedtuple
+
+import voluptuous as vol
+
+import homeassistant.helpers.config_validation as cv
+from homeassistant.helpers.entity import Entity
+from homeassistant.components.sensor import PLATFORM_SCHEMA
+from homeassistant.components.sensor.rest import RestData
+from homeassistant.const import (
+    ATTR_TEMPERATURE, CONF_API_KEY, CONF_NAME, STATE_UNKNOWN)
+
+_LOGGER = logging.getLogger(__name__)
+_ENDPOINT = 'http://pvoutput.org/service/r2/getstatus.jsp'
+
+ATTR_DATE = 'date'
+ATTR_TIME = 'time'
+ATTR_ENERGY_GENERATION = 'energy_generation'
+ATTR_POWER_GENERATION = 'power_generation'
+ATTR_ENERGY_CONSUMPTION = 'energy_consumption'
+ATTR_POWER_CONSUMPTION = 'power_consumption'
+ATTR_EFFICIENCY = 'efficiency'
+ATTR_VOLTAGE = 'voltage'
+
+CONF_SYSTEM_ID = 'system_id'
+
+DEFAULT_NAME = 'PVOutput'
+DEFAULT_VERIFY_SSL = True
+
+PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
+    vol.Required(CONF_API_KEY): cv.string,
+    vol.Required(CONF_SYSTEM_ID): cv.string,
+    vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
+})
+
+
+def setup_platform(hass, config, add_devices, discovery_info=None):
+    """Set up the PVOutput sensor."""
+    name = config.get(CONF_NAME)
+    api_key = config.get(CONF_API_KEY)
+    system_id = config.get(CONF_SYSTEM_ID)
+    method = 'GET'
+    payload = auth = None
+    verify_ssl = DEFAULT_VERIFY_SSL
+    headers = {
+        'X-Pvoutput-Apikey': api_key,
+        'X-Pvoutput-SystemId': system_id,
+    }
+
+    rest = RestData(method, _ENDPOINT, auth, headers, payload, verify_ssl)
+    rest.update()
+
+    if rest.data is None:
+        _LOGGER.error("Unable to fetch data from PVOutput")
+        return False
+
+    add_devices([PvoutputSensor(rest, name)])
+
+
+# pylint: disable=no-member
+class PvoutputSensor(Entity):
+    """Representation of a PVOutput sensor."""
+
+    def __init__(self, rest, name):
+        """Initialize a PVOutput sensor."""
+        self.rest = rest
+        self._name = name
+        self.pvcoutput = False
+        self.status = namedtuple(
+            'status', [ATTR_DATE, ATTR_TIME, ATTR_ENERGY_GENERATION,
+                       ATTR_POWER_GENERATION, ATTR_ENERGY_CONSUMPTION,
+                       ATTR_POWER_CONSUMPTION, ATTR_EFFICIENCY,
+                       ATTR_TEMPERATURE, ATTR_VOLTAGE])
+
+        self.update()
+
+    @property
+    def name(self):
+        """Return the name of the sensor."""
+        return self._name
+
+    @property
+    def state(self):
+        """Return the state of the device."""
+        if self.pvcoutput is not None:
+            return self.pvcoutput.energy_generation
+        else:
+            return STATE_UNKNOWN
+
+    @property
+    def device_state_attributes(self):
+        """Return the state attributes of the Pi-Hole."""
+        if self.pvcoutput is not None:
+            return {
+                ATTR_POWER_GENERATION: self.pvcoutput.power_generation,
+                ATTR_ENERGY_CONSUMPTION: self.pvcoutput.energy_consumption,
+                ATTR_POWER_CONSUMPTION: self.pvcoutput.power_consumption,
+                ATTR_EFFICIENCY: self.pvcoutput.efficiency,
+                ATTR_TEMPERATURE: self.pvcoutput.temperature,
+                ATTR_VOLTAGE: self.pvcoutput.voltage,
+            }
+
+    def update(self):
+        """Get the latest data from the PVOutput API and updates the state."""
+        try:
+            self.rest.update()
+            self.pvcoutput = self.status._make(self.rest.data.split(','))
+        except TypeError:
+            self.pvcoutput = None
+            _LOGGER.error(
+                "Unable to fetch data from PVOutput. %s", self.rest.data)