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Add support for Fixer.io (#2336)
* Add support for Fixer.io * Add unit of measurment and set throttle to one day
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@ -174,6 +174,7 @@ omit =
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homeassistant/components/sensor/efergy.py
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homeassistant/components/sensor/efergy.py
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homeassistant/components/sensor/eliqonline.py
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homeassistant/components/sensor/eliqonline.py
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homeassistant/components/sensor/fitbit.py
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homeassistant/components/sensor/fitbit.py
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homeassistant/components/sensor/fixer.py
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homeassistant/components/sensor/forecast.py
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homeassistant/components/sensor/forecast.py
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homeassistant/components/sensor/glances.py
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homeassistant/components/sensor/glances.py
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homeassistant/components/sensor/google_travel_time.py
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homeassistant/components/sensor/google_travel_time.py
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125
homeassistant/components/sensor/fixer.py
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125
homeassistant/components/sensor/fixer.py
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@ -0,0 +1,125 @@
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"""
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Currency exchange rate support that comes from fixer.io.
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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.fixer/
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"""
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import logging
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from datetime import timedelta
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import voluptuous as vol
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from homeassistant.const import (CONF_PLATFORM, CONF_NAME)
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from homeassistant.helpers.entity import Entity
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from homeassistant.util import Throttle
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import homeassistant.helpers.config_validation as cv
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REQUIREMENTS = ['fixerio==0.1.1']
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_LOGGER = logging.getLogger(__name__)
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DEFAULT_NAME = "Exchange rate"
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ICON = 'mdi:currency'
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CONF_BASE = 'base'
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CONF_TARGET = 'target'
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STATE_ATTR_BASE = 'Base currency'
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STATE_ATTR_TARGET = 'Target currency'
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STATE_ATTR_EXCHANGE_RATE = 'Exchange rate'
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PLATFORM_SCHEMA = vol.Schema({
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vol.Required(CONF_PLATFORM): 'fixer',
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vol.Optional(CONF_BASE): cv.string,
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vol.Optional(CONF_NAME): cv.string,
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vol.Required(CONF_TARGET): cv.string,
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})
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# Return cached results if last scan was less then this time ago.
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MIN_TIME_BETWEEN_UPDATES = timedelta(days=1)
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def setup_platform(hass, config, add_devices, discovery_info=None):
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"""Setup the Fixer.io sensor."""
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from fixerio import (Fixerio, exceptions)
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name = config.get(CONF_NAME, DEFAULT_NAME)
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base = config.get(CONF_BASE, 'USD')
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target = config.get(CONF_TARGET)
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try:
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Fixerio(base=base, symbols=[target], secure=True).latest()
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except exceptions.FixerioException:
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_LOGGER.error('One of the given currencies is not supported')
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return False
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data = ExchangeData(base, target)
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add_devices([ExchangeRateSensor(data, name, target)])
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# pylint: disable=too-few-public-methods
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class ExchangeRateSensor(Entity):
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"""Representation of a Exchange sensor."""
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def __init__(self, data, name, target):
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"""Initialize the sensor."""
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self.data = data
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self._target = target
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self._name = name
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self._state = None
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self.update()
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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._target
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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._state
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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.data.rate is not None:
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return {
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STATE_ATTR_BASE: self.data.rate['base'],
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STATE_ATTR_TARGET: self._target,
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STATE_ATTR_EXCHANGE_RATE: self.data.rate['rates'][self._target]
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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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self.data.update()
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self._state = round(self.data.rate['rates'][self._target], 3)
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class ExchangeData(object):
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"""Get the latest data and update the states."""
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def __init__(self, base_currency, target_currency):
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"""Initialize the data object."""
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from fixerio import Fixerio
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self.rate = None
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self.base_currency = base_currency
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self.target_currency = target_currency
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self.exchange = Fixerio(base=self.base_currency,
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symbols=[self.target_currency],
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secure=True)
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@Throttle(MIN_TIME_BETWEEN_UPDATES)
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def update(self):
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"""Get the latest data from Fixer.io."""
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self.rate = self.exchange.latest()
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@ -73,6 +73,9 @@ feedparser==5.2.1
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# homeassistant.components.sensor.fitbit
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# homeassistant.components.sensor.fitbit
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fitbit==0.2.2
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fitbit==0.2.2
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# homeassistant.components.sensor.fixer
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fixerio==0.1.1
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# homeassistant.components.notify.free_mobile
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# homeassistant.components.notify.free_mobile
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freesms==0.1.0
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freesms==0.1.0
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