Add new component: BMW connected drive (#12277)

* first working version of BMW connected drive sensor

* extended coveragerc

* fixed blank line

* fixed pylint

* major refactoring after major refactoring in bimmer_connected

* Update are now triggered from BMWConnectedDriveVehicle.
* removed polling from sensor and device_tracker
* backend URL is not detected automatically based on current country
* vehicles are discovered automatically
* updates are async now

resolves:
* https://github.com/ChristianKuehnel/bimmer_connected/issues/3
* https://github.com/ChristianKuehnel/bimmer_connected/issues/5

* improved exception handing

* fixed static analysis findings

* fixed review comments from @MartinHjelmare

* improved startup, data is updated right after sensors were created.

* fixed pylint issue

* updated to latest release of the bimmer_connected library

* updated requirements-all.txt

* fixed comments from @MartinHjelmare

* calling self.update from async_add_job

* removed unused attribute "account"

.coveragerc

@@ -29,6 +29,9 @@ omit =
     homeassistant/components/arduino.py
     homeassistant/components/*/arduino.py
 
+    homeassistant/components/bmw_connected_drive.py
+    homeassistant/components/*/bmw_connected_drive.py
+
     homeassistant/components/android_ip_webcam.py
     homeassistant/components/*/android_ip_webcam.py
 

CODEOWNERS

@@ -43,6 +43,7 @@ homeassistant/components/hassio.py @home-assistant/hassio
 
 # Individual components
 homeassistant/components/alarm_control_panel/egardia.py @jeroenterheerdt
+homeassistant/components/bmw_connected_drive.py @ChristianKuehnel
 homeassistant/components/camera/yi.py @bachya
 homeassistant/components/climate/ephember.py @ttroy50
 homeassistant/components/climate/eq3btsmart.py @rytilahti
@@ -74,6 +75,7 @@ homeassistant/components/switch/tplink.py @rytilahti
 homeassistant/components/xiaomi_aqara.py @danielhiversen @syssi
 
 homeassistant/components/*/axis.py @kane610
+homeassistant/components/*/bmw_connected_drive.py @ChristianKuehnel
 homeassistant/components/*/broadlink.py @danielhiversen
 homeassistant/components/hive.py @Rendili @KJonline
 homeassistant/components/*/hive.py @Rendili @KJonline

homeassistant/components/bmw_connected_drive.py

+"""
+Reads vehicle status from BMW connected drive portal.
+
+For more details about this platform, please refer to the documentation at
+https://home-assistant.io/components/bmw_connected_drive/
+"""
+import logging
+import datetime
+
+import voluptuous as vol
+from homeassistant.helpers import discovery
+from homeassistant.helpers.event import track_utc_time_change
+
+import homeassistant.helpers.config_validation as cv
+from homeassistant.const import (
+    CONF_USERNAME, CONF_PASSWORD
+)
+
+REQUIREMENTS = ['bimmer_connected==0.3.0']
+
+_LOGGER = logging.getLogger(__name__)
+
+DOMAIN = 'bmw_connected_drive'
+CONF_VALUES = 'values'
+CONF_COUNTRY = 'country'
+
+ACCOUNT_SCHEMA = vol.Schema({
+    vol.Required(CONF_USERNAME): cv.string,
+    vol.Required(CONF_PASSWORD): cv.string,
+    vol.Required(CONF_COUNTRY): cv.string,
+})
+
+CONFIG_SCHEMA = vol.Schema({
+    DOMAIN: {
+        cv.string: ACCOUNT_SCHEMA
+    },
+}, extra=vol.ALLOW_EXTRA)
+
+
+BMW_COMPONENTS = ['device_tracker', 'sensor']
+UPDATE_INTERVAL = 5  # in minutes
+
+
+def setup(hass, config):
+    """Set up the BMW connected drive components."""
+    accounts = []
+    for name, account_config in config[DOMAIN].items():
+        username = account_config[CONF_USERNAME]
+        password = account_config[CONF_PASSWORD]
+        country = account_config[CONF_COUNTRY]
+        _LOGGER.debug('Adding new account %s', name)
+        bimmer = BMWConnectedDriveAccount(username, password, country, name)
+        accounts.append(bimmer)
+
+        # update every UPDATE_INTERVAL minutes, starting now
+        # this should even out the load on the servers
+
+        now = datetime.datetime.now()
+        track_utc_time_change(
+            hass, bimmer.update,
+            minute=range(now.minute % UPDATE_INTERVAL, 60, UPDATE_INTERVAL),
+            second=now.second)
+
+    hass.data[DOMAIN] = accounts
+
+    for account in accounts:
+        account.update()
+
+    for component in BMW_COMPONENTS:
+        discovery.load_platform(hass, component, DOMAIN, {}, config)
+
+    return True
+
+
+class BMWConnectedDriveAccount(object):
+    """Representation of a BMW vehicle."""
+
+    def __init__(self, username: str, password: str, country: str,
+                 name: str) -> None:
+        """Constructor."""
+        from bimmer_connected.account import ConnectedDriveAccount
+
+        self.account = ConnectedDriveAccount(username, password, country)
+        self.name = name
+        self._update_listeners = []
+
+    def update(self, *_):
+        """Update the state of all vehicles.
+
+        Notify all listeners about the update.
+        """
+        _LOGGER.debug('Updating vehicle state for account %s, '
+                      'notifying %d listeners',
+                      self.name, len(self._update_listeners))
+        try:
+            self.account.update_vehicle_states()
+            for listener in self._update_listeners:
+                listener()
+        except IOError as exception:
+            _LOGGER.error('Error updating the vehicle state.')
+            _LOGGER.exception(exception)
+
+    def add_update_listener(self, listener):
+        """Add a listener for update notifications."""
+        self._update_listeners.append(listener)

homeassistant/components/device_tracker/bmw_connected_drive.py

+"""Device tracker for BMW Connected Drive vehicles.
+
+For more details about this platform, please refer to the documentation at
+https://home-assistant.io/components/device_tracker.bmw_connected_drive/
+"""
+import logging
+
+from homeassistant.components.bmw_connected_drive import DOMAIN \
+    as BMW_DOMAIN
+from homeassistant.util import slugify
+
+DEPENDENCIES = ['bmw_connected_drive']
+
+_LOGGER = logging.getLogger(__name__)
+
+
+def setup_scanner(hass, config, see, discovery_info=None):
+    """Set up the BMW tracker."""
+    accounts = hass.data[BMW_DOMAIN]
+    _LOGGER.debug('Found BMW accounts: %s',
+                  ', '.join([a.name for a in accounts]))
+    for account in accounts:
+        for vehicle in account.account.vehicles:
+            tracker = BMWDeviceTracker(see, vehicle)
+            account.add_update_listener(tracker.update)
+            tracker.update()
+    return True
+
+
+class BMWDeviceTracker(object):
+    """BMW Connected Drive device tracker."""
+
+    def __init__(self, see, vehicle):
+        """Initialize the Tracker."""
+        self._see = see
+        self.vehicle = vehicle
+
+    def update(self) -> None:
+        """Update the device info."""
+        dev_id = slugify(self.vehicle.modelName)
+        _LOGGER.debug('Updating %s', dev_id)
+        attrs = {
+            'trackr_id': dev_id,
+            'id': dev_id,
+            'name': self.vehicle.modelName
+        }
+        self._see(
+            dev_id=dev_id, host_name=self.vehicle.modelName,
+            gps=self.vehicle.state.gps_position, attributes=attrs,
+            icon='mdi:car'
+        )

homeassistant/components/sensor/bmw_connected_drive.py

+"""
+Reads vehicle status from BMW connected drive portal.
+
+For more details about this platform, please refer to the documentation at
+https://home-assistant.io/components/sensor.bmw_connected_drive/
+"""
+import logging
+import asyncio
+
+from homeassistant.components.bmw_connected_drive import DOMAIN as BMW_DOMAIN
+from homeassistant.helpers.entity import Entity
+
+DEPENDENCIES = ['bmw_connected_drive']
+
+_LOGGER = logging.getLogger(__name__)
+
+LENGTH_ATTRIBUTES = [
+    'remaining_range_fuel',
+    'mileage',
+    ]
+
+VALID_ATTRIBUTES = LENGTH_ATTRIBUTES + [
+    'remaining_fuel',
+]
+
+
+def setup_platform(hass, config, add_devices, discovery_info=None):
+    """Set up the BMW sensors."""
+    accounts = hass.data[BMW_DOMAIN]
+    _LOGGER.debug('Found BMW accounts: %s',
+                  ', '.join([a.name for a in accounts]))
+    devices = []
+    for account in accounts:
+        for vehicle in account.account.vehicles:
+            for sensor in VALID_ATTRIBUTES:
+                device = BMWConnectedDriveSensor(account, vehicle, sensor)
+                devices.append(device)
+    add_devices(devices)
+
+
+class BMWConnectedDriveSensor(Entity):
+    """Representation of a BMW vehicle sensor."""
+
+    def __init__(self, account, vehicle, attribute: str):
+        """Constructor."""
+        self._vehicle = vehicle
+        self._account = account
+        self._attribute = attribute
+        self._state = None
+        self._unit_of_measurement = None
+        self._name = '{} {}'.format(self._vehicle.modelName, self._attribute)
+
+    @property
+    def should_poll(self) -> bool:
+        """Data update is triggered from BMWConnectedDriveEntity."""
+        return False
+
+    @property
+    def name(self) -> str:
+        """Return the name of the sensor."""
+        return self._name
+
+    @property
+    def state(self):
+        """Return the state of the sensor.
+
+        The return type of this call depends on the attribute that
+        is configured.
+        """
+        return self._state
+
+    @property
+    def unit_of_measurement(self) -> str:
+        """Get the unit of measurement."""
+        return self._unit_of_measurement
+
+    def update(self) -> None:
+        """Read new state data from the library."""
+        _LOGGER.debug('Updating %s', self.entity_id)
+        vehicle_state = self._vehicle.state
+        self._state = getattr(vehicle_state, self._attribute)
+
+        if self._attribute in LENGTH_ATTRIBUTES:
+            self._unit_of_measurement = vehicle_state.unit_of_length
+        elif self._attribute == 'remaining_fuel':
+            self._unit_of_measurement = vehicle_state.unit_of_volume
+        else:
+            self._unit_of_measurement = None
+
+        self.schedule_update_ha_state()
+
+    @asyncio.coroutine
+    def async_added_to_hass(self):
+        """Add callback after being added to hass.
+
+        Show latest data after startup.
+        """
+        self._account.add_update_listener(self.update)
+        yield from self.hass.async_add_job(self.update)

requirements_all.txt

@@ -135,6 +135,9 @@ beautifulsoup4==4.6.0
 # homeassistant.components.zha
 bellows==0.5.0
 
+# homeassistant.components.bmw_connected_drive
+bimmer_connected==0.3.0
+
 # homeassistant.components.blink
 blinkpy==0.6.0