88 lines
2.7 KiB
Python
88 lines
2.7 KiB
Python
"""Support for Axis binary sensors."""
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from datetime import timedelta
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from homeassistant.components.binary_sensor import BinarySensorDevice
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from homeassistant.const import CONF_MAC, CONF_TRIGGER_TIME
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from homeassistant.core import callback
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from homeassistant.helpers.dispatcher import async_dispatcher_connect
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from homeassistant.helpers.event import async_track_point_in_utc_time
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from homeassistant.util.dt import utcnow
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from .const import DOMAIN as AXIS_DOMAIN, LOGGER
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DEPENDENCIES = [AXIS_DOMAIN]
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async def async_setup_entry(hass, config_entry, async_add_entities):
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"""Set up a Axis binary sensor."""
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serial_number = config_entry.data[CONF_MAC]
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device = hass.data[AXIS_DOMAIN][serial_number]
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@callback
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def async_add_sensor(event):
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"""Add binary sensor from Axis device."""
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async_add_entities([AxisBinarySensor(event, device)], True)
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device.listeners.append(
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async_dispatcher_connect(hass, 'axis_add_sensor', async_add_sensor))
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class AxisBinarySensor(BinarySensorDevice):
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"""Representation of a binary Axis event."""
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def __init__(self, event, device):
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"""Initialize the Axis binary sensor."""
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self.event = event
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self.device = device
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self.delay = device.config_entry.options[CONF_TRIGGER_TIME]
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self.remove_timer = None
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async def async_added_to_hass(self):
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"""Subscribe sensors events."""
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self.event.register_callback(self.update_callback)
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def update_callback(self):
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"""Update the sensor's state, if needed."""
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delay = self.device.config_entry.options[CONF_TRIGGER_TIME]
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if self.remove_timer is not None:
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self.remove_timer()
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self.remove_timer = None
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if delay == 0 or self.is_on:
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self.schedule_update_ha_state()
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return
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@callback
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def _delay_update(now):
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"""Timer callback for sensor update."""
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LOGGER.debug("%s called delayed (%s sec) update", self.name, delay)
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self.async_schedule_update_ha_state()
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self.remove_timer = None
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self.remove_timer = async_track_point_in_utc_time(
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self.hass, _delay_update,
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utcnow() + timedelta(seconds=delay))
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@property
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def is_on(self):
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"""Return true if event is active."""
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return self.event.is_tripped
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@property
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def name(self):
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"""Return the name of the event."""
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return '{} {} {}'.format(
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self.device.name, self.event.event_type, self.event.id)
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@property
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def device_class(self):
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"""Return the class of the event."""
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return self.event.event_class
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@property
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def should_poll(self):
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"""No polling needed."""
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return False
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