98 lines
3.3 KiB
Python
98 lines
3.3 KiB
Python
"""Support for Envisalink zone states- represented as binary sensors."""
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import datetime
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import logging
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from homeassistant.components.binary_sensor import BinarySensorEntity
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from homeassistant.const import ATTR_LAST_TRIP_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.util import dt as dt_util
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from . import (
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CONF_ZONENAME,
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CONF_ZONETYPE,
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DATA_EVL,
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SIGNAL_ZONE_UPDATE,
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ZONE_SCHEMA,
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EnvisalinkDevice,
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)
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_LOGGER = logging.getLogger(__name__)
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async def async_setup_platform(hass, config, async_add_entities, discovery_info=None):
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"""Set up the Envisalink binary sensor devices."""
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configured_zones = discovery_info["zones"]
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devices = []
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for zone_num in configured_zones:
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device_config_data = ZONE_SCHEMA(configured_zones[zone_num])
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device = EnvisalinkBinarySensor(
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hass,
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zone_num,
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device_config_data[CONF_ZONENAME],
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device_config_data[CONF_ZONETYPE],
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hass.data[DATA_EVL].alarm_state["zone"][zone_num],
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hass.data[DATA_EVL],
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)
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devices.append(device)
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async_add_entities(devices)
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class EnvisalinkBinarySensor(EnvisalinkDevice, BinarySensorEntity):
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"""Representation of an Envisalink binary sensor."""
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def __init__(self, hass, zone_number, zone_name, zone_type, info, controller):
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"""Initialize the binary_sensor."""
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self._zone_type = zone_type
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self._zone_number = zone_number
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_LOGGER.debug("Setting up zone: %s", zone_name)
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super().__init__(zone_name, info, controller)
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async def async_added_to_hass(self):
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"""Register callbacks."""
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async_dispatcher_connect(self.hass, SIGNAL_ZONE_UPDATE, self._update_callback)
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@property
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def device_state_attributes(self):
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"""Return the state attributes."""
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attr = {}
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# The Envisalink library returns a "last_fault" value that's the
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# number of seconds since the last fault, up to a maximum of 327680
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# seconds (65536 5-second ticks).
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#
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# We don't want the HA event log to fill up with a bunch of no-op
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# "state changes" that are just that number ticking up once per poll
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# interval, so we subtract it from the current second-accurate time
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# unless it is already at the maximum value, in which case we set it
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# to None since we can't determine the actual value.
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seconds_ago = self._info["last_fault"]
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if seconds_ago < 65536 * 5:
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now = dt_util.now().replace(microsecond=0)
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delta = datetime.timedelta(seconds=seconds_ago)
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last_trip_time = (now - delta).isoformat()
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else:
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last_trip_time = None
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attr[ATTR_LAST_TRIP_TIME] = last_trip_time
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return attr
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@property
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def is_on(self):
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"""Return true if sensor is on."""
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return self._info["status"]["open"]
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@property
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def device_class(self):
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"""Return the class of this sensor, from DEVICE_CLASSES."""
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return self._zone_type
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@callback
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def _update_callback(self, zone):
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"""Update the zone's state, if needed."""
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if zone is None or int(zone) == self._zone_number:
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self.async_write_ha_state()
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