core/homeassistant/components/amcrest/sensor.py

100 lines
3.1 KiB
Python

"""Suppoort for Amcrest IP camera sensors."""
from datetime import timedelta
import logging
from homeassistant.const import CONF_NAME, CONF_SENSORS
from homeassistant.helpers.entity import Entity
from .const import DATA_AMCREST, SENSOR_SCAN_INTERVAL_SECS
_LOGGER = logging.getLogger(__name__)
SCAN_INTERVAL = timedelta(seconds=SENSOR_SCAN_INTERVAL_SECS)
# Sensor types are defined like: Name, units, icon
SENSOR_MOTION_DETECTOR = 'motion_detector'
SENSORS = {
SENSOR_MOTION_DETECTOR: ['Motion Detected', None, 'mdi:run'],
'sdcard': ['SD Used', '%', 'mdi:sd'],
'ptz_preset': ['PTZ Preset', None, 'mdi:camera-iris'],
}
async def async_setup_platform(
hass, config, async_add_entities, discovery_info=None):
"""Set up a sensor for an Amcrest IP Camera."""
if discovery_info is None:
return
name = discovery_info[CONF_NAME]
device = hass.data[DATA_AMCREST]['devices'][name]
async_add_entities(
[AmcrestSensor(name, device, sensor_type)
for sensor_type in discovery_info[CONF_SENSORS]],
True)
class AmcrestSensor(Entity):
"""A sensor implementation for Amcrest IP camera."""
def __init__(self, name, device, sensor_type):
"""Initialize a sensor for Amcrest camera."""
self._name = '{} {}'.format(name, SENSORS[sensor_type][0])
self._api = device.api
self._sensor_type = sensor_type
self._state = None
self._attrs = {}
self._unit_of_measurement = SENSORS[sensor_type][1]
self._icon = SENSORS[sensor_type][2]
@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._attrs
@property
def icon(self):
"""Icon to use in the frontend, if any."""
return self._icon
@property
def unit_of_measurement(self):
"""Return the units of measurement."""
return self._unit_of_measurement
def update(self):
"""Get the latest data and updates the state."""
_LOGGER.debug("Pulling data from %s sensor.", self._name)
if self._sensor_type == 'motion_detector':
self._state = self._api.is_motion_detected
self._attrs['Record Mode'] = self._api.record_mode
elif self._sensor_type == 'ptz_preset':
self._state = self._api.ptz_presets_count
elif self._sensor_type == 'sdcard':
storage = self._api.storage_all
try:
self._attrs['Total'] = '{:.2f} {}'.format(*storage['total'])
except ValueError:
self._attrs['Total'] = '{} {}'.format(*storage['total'])
try:
self._attrs['Used'] = '{:.2f} {}'.format(*storage['used'])
except ValueError:
self._attrs['Used'] = '{} {}'.format(*storage['used'])
try:
self._state = '{:.2f}'.format(storage['used_percent'])
except ValueError:
self._state = storage['used_percent']