core/homeassistant/components/sensor/crimereports.py

126 lines
4.3 KiB
Python

"""
Sensor for Crime Reports.
For more details about this platform, please refer to the documentation at
https://home-assistant.io/components/sensor.crimereports/
"""
from collections import defaultdict
from datetime import timedelta
import logging
import voluptuous as vol
from homeassistant.components.sensor import PLATFORM_SCHEMA
from homeassistant.const import (
CONF_INCLUDE, CONF_EXCLUDE, CONF_NAME, CONF_LATITUDE, CONF_LONGITUDE,
ATTR_ATTRIBUTION, ATTR_LATITUDE, ATTR_LONGITUDE, CONF_RADIUS,
LENGTH_KILOMETERS, LENGTH_METERS)
from homeassistant.helpers.entity import Entity
from homeassistant.util import slugify
from homeassistant.util.distance import convert
from homeassistant.util.dt import now
import homeassistant.helpers.config_validation as cv
REQUIREMENTS = ['crimereports==1.0.0']
_LOGGER = logging.getLogger(__name__)
DOMAIN = 'crimereports'
EVENT_INCIDENT = '{}_incident'.format(DOMAIN)
SCAN_INTERVAL = timedelta(minutes=30)
PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
vol.Required(CONF_NAME): cv.string,
vol.Required(CONF_RADIUS): vol.Coerce(float),
vol.Inclusive(CONF_LATITUDE, 'coordinates'): cv.latitude,
vol.Inclusive(CONF_LONGITUDE, 'coordinates'): cv.longitude,
vol.Optional(CONF_INCLUDE): vol.All(cv.ensure_list, [cv.string]),
vol.Optional(CONF_EXCLUDE): vol.All(cv.ensure_list, [cv.string])
})
def setup_platform(hass, config, add_entities, discovery_info=None):
"""Set up the Crime Reports platform."""
latitude = config.get(CONF_LATITUDE, hass.config.latitude)
longitude = config.get(CONF_LONGITUDE, hass.config.longitude)
name = config.get(CONF_NAME)
radius = config.get(CONF_RADIUS)
include = config.get(CONF_INCLUDE)
exclude = config.get(CONF_EXCLUDE)
add_entities([CrimeReportsSensor(
hass, name, latitude, longitude, radius, include, exclude)], True)
class CrimeReportsSensor(Entity):
"""Representation of a Crime Reports Sensor."""
def __init__(self, hass, name, latitude, longitude, radius,
include, exclude):
"""Initialize the Crime Reports sensor."""
import crimereports
self._hass = hass
self._name = name
self._include = include
self._exclude = exclude
radius_kilometers = convert(radius, LENGTH_METERS, LENGTH_KILOMETERS)
self._crimereports = crimereports.CrimeReports(
(latitude, longitude), radius_kilometers)
self._attributes = None
self._state = None
self._previous_incidents = set()
@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 device_state_attributes(self):
"""Return the state attributes."""
return self._attributes
def _incident_event(self, incident):
"""Fire if an event occurs."""
data = {
'type': incident.get('type'),
'description': incident.get('friendly_description'),
'timestamp': incident.get('timestamp'),
'location': incident.get('location')
}
if incident.get('coordinates'):
data.update({
ATTR_LATITUDE: incident.get('coordinates')[0],
ATTR_LONGITUDE: incident.get('coordinates')[1]
})
self._hass.bus.fire(EVENT_INCIDENT, data)
def update(self):
"""Update device state."""
import crimereports
incident_counts = defaultdict(int)
incidents = self._crimereports.get_incidents(
now().date(), include=self._include, exclude=self._exclude)
fire_events = len(self._previous_incidents) > 0
if len(incidents) < len(self._previous_incidents):
self._previous_incidents = set()
for incident in incidents:
incident_type = slugify(incident.get('type'))
incident_counts[incident_type] += 1
if (fire_events and incident.get('id')
not in self._previous_incidents):
self._incident_event(incident)
self._previous_incidents.add(incident.get('id'))
self._attributes = {
ATTR_ATTRIBUTION: crimereports.ATTRIBUTION
}
self._attributes.update(incident_counts)
self._state = len(incidents)