90 lines
2.9 KiB
Python
90 lines
2.9 KiB
Python
"""
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A component which allows you to send data to Emoncms.
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For more details about this component, please refer to the documentation at
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https://home-assistant.io/components/emoncms_history/
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"""
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import logging
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from datetime import timedelta
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import requests
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import voluptuous as vol
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import homeassistant.helpers.config_validation as cv
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from homeassistant.const import (
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CONF_API_KEY, CONF_WHITELIST, CONF_URL, STATE_UNKNOWN, STATE_UNAVAILABLE,
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CONF_SCAN_INTERVAL)
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from homeassistant.helpers import state as state_helper
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from homeassistant.helpers.event import track_point_in_time
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from homeassistant.util import dt as dt_util
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_LOGGER = logging.getLogger(__name__)
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DOMAIN = 'emoncms_history'
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CONF_INPUTNODE = 'inputnode'
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CONFIG_SCHEMA = vol.Schema({
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DOMAIN: vol.Schema({
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vol.Required(CONF_API_KEY): cv.string,
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vol.Required(CONF_URL): cv.string,
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vol.Required(CONF_INPUTNODE): cv.positive_int,
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vol.Required(CONF_WHITELIST): cv.entity_ids,
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vol.Optional(CONF_SCAN_INTERVAL, default=30): cv.positive_int,
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}),
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}, extra=vol.ALLOW_EXTRA)
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def setup(hass, config):
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"""Set up the Emoncms history component."""
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conf = config[DOMAIN]
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whitelist = conf.get(CONF_WHITELIST)
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def send_data(url, apikey, node, payload):
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"""Send payload data to Emoncms."""
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try:
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fullurl = '{}/input/post.json'.format(url)
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data = {"apikey": apikey, "data": payload}
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parameters = {"node": node}
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req = requests.post(
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fullurl, params=parameters, data=data, allow_redirects=True,
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timeout=5)
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except requests.exceptions.RequestException:
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_LOGGER.error("Error saving data '%s' to '%s'", payload, fullurl)
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else:
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if req.status_code != 200:
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_LOGGER.error(
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"Error saving data %s to %s (http status code = %d)",
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payload, fullurl, req.status_code)
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def update_emoncms(time):
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"""Send whitelisted entities states regularly to Emoncms."""
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payload_dict = {}
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for entity_id in whitelist:
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state = hass.states.get(entity_id)
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if state is None or state.state in (
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STATE_UNKNOWN, '', STATE_UNAVAILABLE):
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continue
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try:
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payload_dict[entity_id] = state_helper.state_as_number(state)
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except ValueError:
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continue
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if payload_dict:
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payload = "{%s}" % ",".join("{}:{}".format(key, val)
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for key, val in
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payload_dict.items())
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send_data(conf.get(CONF_URL), conf.get(CONF_API_KEY),
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str(conf.get(CONF_INPUTNODE)), payload)
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track_point_in_time(hass, update_emoncms, time +
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timedelta(seconds=conf.get(CONF_SCAN_INTERVAL)))
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update_emoncms(dt_util.utcnow())
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return True
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