core/homeassistant/components/etherscan/sensor.py

86 lines
2.5 KiB
Python

"""Support for Etherscan sensors."""
from datetime import timedelta
from pyetherscan import get_balance
import voluptuous as vol
from homeassistant.components.sensor import PLATFORM_SCHEMA
from homeassistant.const import ATTR_ATTRIBUTION, CONF_ADDRESS, CONF_NAME, CONF_TOKEN
import homeassistant.helpers.config_validation as cv
from homeassistant.helpers.entity import Entity
ATTRIBUTION = "Data provided by etherscan.io"
CONF_TOKEN_ADDRESS = "token_address"
SCAN_INTERVAL = timedelta(minutes=5)
PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
{
vol.Required(CONF_ADDRESS): cv.string,
vol.Optional(CONF_NAME): cv.string,
vol.Optional(CONF_TOKEN): cv.string,
vol.Optional(CONF_TOKEN_ADDRESS): cv.string,
}
)
def setup_platform(hass, config, add_entities, discovery_info=None):
"""Set up the Etherscan.io sensors."""
address = config.get(CONF_ADDRESS)
name = config.get(CONF_NAME)
token = config.get(CONF_TOKEN)
token_address = config.get(CONF_TOKEN_ADDRESS)
if token:
token = token.upper()
if not name:
name = "%s Balance" % token
if not name:
name = "ETH Balance"
add_entities([EtherscanSensor(name, address, token, token_address)], True)
class EtherscanSensor(Entity):
"""Representation of an Etherscan.io sensor."""
def __init__(self, name, address, token, token_address):
"""Initialize the sensor."""
self._name = name
self._address = address
self._token_address = token_address
self._token = token
self._state = None
self._unit_of_measurement = self._token or "ETH"
@property
def name(self):
"""Return the name of the sensor."""
return self._name
@property
def state(self):
"""Return the state of the sensor."""
return self._state
@property
def unit_of_measurement(self):
"""Return the unit of measurement this sensor expresses itself in."""
return self._unit_of_measurement
@property
def device_state_attributes(self):
"""Return the state attributes of the sensor."""
return {ATTR_ATTRIBUTION: ATTRIBUTION}
def update(self):
"""Get the latest state of the sensor."""
if self._token_address:
self._state = get_balance(self._address, self._token_address)
elif self._token:
self._state = get_balance(self._address, self._token)
else:
self._state = get_balance(self._address)