120 lines
3.6 KiB
Python
120 lines
3.6 KiB
Python
"""Suppoort for Amcrest IP camera binary sensors."""
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from datetime import timedelta
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import logging
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from amcrest import AmcrestError
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from homeassistant.components.binary_sensor import (
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BinarySensorDevice,
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DEVICE_CLASS_CONNECTIVITY,
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DEVICE_CLASS_MOTION,
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)
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from homeassistant.const import CONF_NAME, CONF_BINARY_SENSORS
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from homeassistant.helpers.dispatcher import async_dispatcher_connect
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from .const import (
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BINARY_SENSOR_SCAN_INTERVAL_SECS,
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DATA_AMCREST,
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DEVICES,
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SERVICE_UPDATE,
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)
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from .helpers import log_update_error, service_signal
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_LOGGER = logging.getLogger(__name__)
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SCAN_INTERVAL = timedelta(seconds=BINARY_SENSOR_SCAN_INTERVAL_SECS)
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BINARY_SENSOR_MOTION_DETECTED = "motion_detected"
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BINARY_SENSOR_ONLINE = "online"
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# Binary sensor types are defined like: Name, device class
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BINARY_SENSORS = {
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BINARY_SENSOR_MOTION_DETECTED: ("Motion Detected", DEVICE_CLASS_MOTION),
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BINARY_SENSOR_ONLINE: ("Online", DEVICE_CLASS_CONNECTIVITY),
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}
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async def async_setup_platform(hass, config, async_add_entities, discovery_info=None):
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"""Set up a binary sensor for an Amcrest IP Camera."""
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if discovery_info is None:
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return
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name = discovery_info[CONF_NAME]
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device = hass.data[DATA_AMCREST][DEVICES][name]
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async_add_entities(
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[
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AmcrestBinarySensor(name, device, sensor_type)
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for sensor_type in discovery_info[CONF_BINARY_SENSORS]
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],
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True,
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)
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class AmcrestBinarySensor(BinarySensorDevice):
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"""Binary sensor for Amcrest camera."""
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def __init__(self, name, device, sensor_type):
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"""Initialize entity."""
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self._name = "{} {}".format(name, BINARY_SENSORS[sensor_type][0])
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self._signal_name = name
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self._api = device.api
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self._sensor_type = sensor_type
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self._state = None
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self._device_class = BINARY_SENSORS[sensor_type][1]
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self._unsub_dispatcher = None
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@property
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def should_poll(self):
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"""Return True if entity has to be polled for state."""
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return self._sensor_type != BINARY_SENSOR_ONLINE
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@property
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def name(self):
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"""Return entity name."""
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return self._name
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@property
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def is_on(self):
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"""Return if entity is on."""
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return self._state
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@property
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def device_class(self):
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"""Return device class."""
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return self._device_class
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@property
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def available(self):
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"""Return True if entity is available."""
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return self._sensor_type == BINARY_SENSOR_ONLINE or self._api.available
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def update(self):
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"""Update entity."""
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if not self.available:
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return
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_LOGGER.debug("Updating %s binary sensor", self._name)
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try:
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if self._sensor_type == BINARY_SENSOR_MOTION_DETECTED:
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self._state = self._api.is_motion_detected
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elif self._sensor_type == BINARY_SENSOR_ONLINE:
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self._state = self._api.available
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except AmcrestError as error:
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log_update_error(_LOGGER, "update", self.name, "binary sensor", error)
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async def async_on_demand_update(self):
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"""Update state."""
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self.async_schedule_update_ha_state(True)
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async def async_added_to_hass(self):
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"""Subscribe to update signal."""
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self._unsub_dispatcher = async_dispatcher_connect(
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self.hass,
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service_signal(SERVICE_UPDATE, self._signal_name),
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self.async_on_demand_update,
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)
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async def async_will_remove_from_hass(self):
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"""Disconnect from update signal."""
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self._unsub_dispatcher()
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