Add new launch sensor to keep track of space launches. (#18274)

* Add new launch sensor to keep track of space launches.

* Added attribution to Launch Library.

* Adds data class and throtle, reuse aiohttp session.

* Add one extra blank line before the new class..

* Change throttle to simpler SCAN_INTERVAL.

* Remove the usage of the LaunchData class.

* Bump pylaunches, remove . from log, fix line breaker for agency_country_code, remove CONF_ from ATTRIBUTION.

.coveragerc

@@ -728,6 +728,7 @@ omit =
     homeassistant/components/sensor/kwb.py
     homeassistant/components/sensor/lacrosse.py
     homeassistant/components/sensor/lastfm.py
+    homeassistant/components/sensor/launch.py
     homeassistant/components/sensor/linky.py
     homeassistant/components/sensor/linux_battery.py
     homeassistant/components/sensor/loopenergy.py

homeassistant/components/sensor/launch.py

@@ -0,0 +1,92 @@
+"""
+A sensor platform that give you information about the next space launch.
+
+For more details about this platform, please refer to the documentation at
+https://www.home-assistant.io/components/sensor.launch/
+"""
+from datetime import timedelta
+import logging
+
+import voluptuous as vol
+
+import homeassistant.helpers.config_validation as cv
+from homeassistant.components.sensor import PLATFORM_SCHEMA
+from homeassistant.const import ATTR_ATTRIBUTION, CONF_NAME
+from homeassistant.helpers.entity import Entity
+from homeassistant.helpers.aiohttp_client import async_get_clientsession
+
+REQUIREMENTS = ['pylaunches==0.1.2']
+
+_LOGGER = logging.getLogger(__name__)
+
+ATTRIBUTION = "Data provided by Launch Library."
+
+DEFAULT_NAME = 'Launch'
+
+SCAN_INTERVAL = timedelta(hours=1)
+
+PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
+    vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
+    })
+
+
+async def async_setup_platform(
+        hass, config, async_add_entities, discovery_info=None):
+    """Create the launch sensor."""
+    from pylaunches.api import Launches
+
+    name = config[CONF_NAME]
+
+    session = async_get_clientsession(hass)
+    launches = Launches(hass.loop, session)
+    sensor = [LaunchSensor(launches, name)]
+    async_add_entities(sensor, True)
+
+
+class LaunchSensor(Entity):
+    """Representation of a launch Sensor."""
+
+    def __init__(self, launches, name):
+        """Initialize the sensor."""
+        self.launches = launches
+        self._attributes = {}
+        self._name = name
+        self._state = None
+
+    async def async_update(self):
+        """Get the latest data."""
+        await self.launches.get_launches()
+        if self.launches.launches is None:
+            _LOGGER.error("No data recieved")
+            return
+        try:
+            data = self.launches.launches[0]
+            self._state = data['name']
+            self._attributes['launch_time'] = data['start']
+            self._attributes['agency'] = data['agency']
+            agency_country_code = data['agency_country_code']
+            self._attributes['agency_country_code'] = agency_country_code
+            self._attributes['stream'] = data['stream']
+            self._attributes[ATTR_ATTRIBUTION] = ATTRIBUTION
+        except (KeyError, IndexError) as error:
+            _LOGGER.debug("Error getting data, %s", error)
+
+    @property
+    def name(self):
+        """Return the name of the sensor."""
+        return self._name
+
+    @property
+    def state(self):
+        """Return the state of the sensor."""
+        return self._state
+
+    @property
+    def icon(self):
+        """Return the icon of the sensor."""
+        return 'mdi:rocket'
+
+    @property
+    def device_state_attributes(self):
+        """Return attributes for the sensor."""
+        return self._attributes

requirements_all.txt

@@ -985,6 +985,9 @@ pylacrosse==0.3.1
 # homeassistant.components.sensor.lastfm
 pylast==2.4.0
 
+# homeassistant.components.sensor.launch
+pylaunches==0.1.2
+
 # homeassistant.components.media_player.lg_netcast
 pylgnetcast-homeassistant==0.2.0.dev0