77 lines
2.4 KiB
Python
77 lines
2.4 KiB
Python
"""Support for GPS tracking MQTT enabled devices."""
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import json
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import logging
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import voluptuous as vol
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from homeassistant.components import mqtt
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from homeassistant.components.device_tracker import PLATFORM_SCHEMA
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from homeassistant.components.mqtt import CONF_QOS
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from homeassistant.const import (
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ATTR_BATTERY_LEVEL,
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ATTR_GPS_ACCURACY,
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ATTR_LATITUDE,
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ATTR_LONGITUDE,
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CONF_DEVICES,
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)
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from homeassistant.core import callback
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import homeassistant.helpers.config_validation as cv
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_LOGGER = logging.getLogger(__name__)
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GPS_JSON_PAYLOAD_SCHEMA = vol.Schema(
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{
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vol.Required(ATTR_LATITUDE): vol.Coerce(float),
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vol.Required(ATTR_LONGITUDE): vol.Coerce(float),
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vol.Optional(ATTR_GPS_ACCURACY): vol.Coerce(int),
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vol.Optional(ATTR_BATTERY_LEVEL): vol.Coerce(str),
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},
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extra=vol.ALLOW_EXTRA,
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)
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PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(mqtt.SCHEMA_BASE).extend(
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{vol.Required(CONF_DEVICES): {cv.string: mqtt.valid_subscribe_topic}}
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)
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async def async_setup_scanner(hass, config, async_see, discovery_info=None):
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"""Set up the MQTT JSON tracker."""
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devices = config[CONF_DEVICES]
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qos = config[CONF_QOS]
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for dev_id, topic in devices.items():
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@callback
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def async_message_received(msg, dev_id=dev_id):
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"""Handle received MQTT message."""
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try:
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data = GPS_JSON_PAYLOAD_SCHEMA(json.loads(msg.payload))
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except vol.MultipleInvalid:
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_LOGGER.error(
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"Skipping update for following data "
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"because of missing or malformatted data: %s",
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msg.payload,
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)
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return
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except ValueError:
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_LOGGER.error("Error parsing JSON payload: %s", msg.payload)
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return
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kwargs = _parse_see_args(dev_id, data)
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hass.async_create_task(async_see(**kwargs))
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await mqtt.async_subscribe(hass, topic, async_message_received, qos)
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return True
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def _parse_see_args(dev_id, data):
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"""Parse the payload location parameters, into the format see expects."""
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kwargs = {"gps": (data[ATTR_LATITUDE], data[ATTR_LONGITUDE]), "dev_id": dev_id}
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if ATTR_GPS_ACCURACY in data:
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kwargs[ATTR_GPS_ACCURACY] = data[ATTR_GPS_ACCURACY]
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if ATTR_BATTERY_LEVEL in data:
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kwargs["battery"] = data[ATTR_BATTERY_LEVEL]
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return kwargs
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