2017-12-03 21:34:59 +01:00
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"""
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Stock market information from Alpha Vantage.
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For more details about this platform, please refer to the documentation at
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https://home-assistant.io/components/sensor.alpha_vantage/
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"""
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from datetime import timedelta
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import logging
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import voluptuous as vol
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from homeassistant.components.sensor import PLATFORM_SCHEMA
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from homeassistant.const import ATTR_ATTRIBUTION, CONF_API_KEY
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import homeassistant.helpers.config_validation as cv
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from homeassistant.helpers.entity import Entity
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2018-01-06 01:05:51 +01:00
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REQUIREMENTS = ['alpha_vantage==1.8.0']
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2017-12-03 21:34:59 +01:00
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_LOGGER = logging.getLogger(__name__)
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ATTR_CLOSE = 'close'
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ATTR_HIGH = 'high'
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ATTR_LOW = 'low'
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ATTR_VOLUME = 'volume'
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CONF_ATTRIBUTION = "Stock market information provided by Alpha Vantage."
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CONF_SYMBOLS = 'symbols'
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DEFAULT_SYMBOL = 'GOOGL'
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ICON = 'mdi:currency-usd'
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SCAN_INTERVAL = timedelta(minutes=5)
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PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
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vol.Required(CONF_API_KEY): cv.string,
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vol.Optional(CONF_SYMBOLS, default=[DEFAULT_SYMBOL]):
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vol.All(cv.ensure_list, [cv.string]),
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})
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def setup_platform(hass, config, add_devices, discovery_info=None):
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"""Set up the Alpha Vantage sensor."""
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from alpha_vantage.timeseries import TimeSeries
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api_key = config.get(CONF_API_KEY)
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symbols = config.get(CONF_SYMBOLS)
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timeseries = TimeSeries(key=api_key)
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dev = []
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for symbol in symbols:
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try:
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timeseries.get_intraday(symbol)
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except ValueError:
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_LOGGER.error(
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"API Key is not valid or symbol '%s' not known", symbol)
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return
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dev.append(AlphaVantageSensor(timeseries, symbol))
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add_devices(dev, True)
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class AlphaVantageSensor(Entity):
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"""Representation of a Alpha Vantage sensor."""
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def __init__(self, timeseries, symbol):
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"""Initialize the sensor."""
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self._name = symbol
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self._timeseries = timeseries
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self._symbol = symbol
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self.values = None
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self._unit_of_measurement = None
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@property
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def name(self):
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"""Return the name of the sensor."""
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return self._name
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@property
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def unit_of_measurement(self):
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"""Return the unit of measurement of this entity, if any."""
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return self._symbol
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@property
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def state(self):
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"""Return the state of the sensor."""
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return self.values['1. open']
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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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if self.values is not None:
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return {
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ATTR_ATTRIBUTION: CONF_ATTRIBUTION,
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ATTR_CLOSE: self.values['4. close'],
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ATTR_HIGH: self.values['2. high'],
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ATTR_LOW: self.values['3. low'],
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ATTR_VOLUME: self.values['5. volume'],
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}
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@property
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def icon(self):
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"""Return the icon to use in the frontend, if any."""
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return ICON
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def update(self):
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"""Get the latest data and updates the states."""
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all_values, _ = self._timeseries.get_intraday(self._symbol)
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self.values = next(iter(all_values.values()))
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