107 lines
3.0 KiB
Python
107 lines
3.0 KiB
Python
"""
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Parse prices of a device from geizhals.
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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.geizhals/
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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.components.sensor import PLATFORM_SCHEMA
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import homeassistant.helpers.config_validation as cv
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from homeassistant.util import Throttle
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from homeassistant.helpers.entity import Entity
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from homeassistant.const import CONF_NAME
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REQUIREMENTS = ['geizhals==0.0.9']
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_LOGGER = logging.getLogger(__name__)
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CONF_DESCRIPTION = 'description'
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CONF_PRODUCT_ID = 'product_id'
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CONF_LOCALE = 'locale'
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ICON = 'mdi:coin'
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MIN_TIME_BETWEEN_UPDATES = timedelta(seconds=120)
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PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
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vol.Required(CONF_NAME): cv.string,
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vol.Required(CONF_PRODUCT_ID): cv.positive_int,
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vol.Optional(CONF_DESCRIPTION, default='Price'): cv.string,
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vol.Optional(CONF_LOCALE, default='DE'): vol.In(
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['AT',
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'EU',
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'DE',
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'UK',
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'PL']),
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})
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def setup_platform(hass, config, add_entities, discovery_info=None):
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"""Set up the Geizwatch sensor."""
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name = config.get(CONF_NAME)
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description = config.get(CONF_DESCRIPTION)
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product_id = config.get(CONF_PRODUCT_ID)
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domain = config.get(CONF_LOCALE)
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add_entities([Geizwatch(name, description, product_id, domain)],
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True)
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class Geizwatch(Entity):
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"""Implementation of Geizwatch."""
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def __init__(self, name, description, product_id, domain):
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"""Initialize the sensor."""
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from geizhals import Device, Geizhals
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# internal
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self._name = name
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self._geizhals = Geizhals(product_id, domain)
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self._device = Device()
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# external
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self.description = description
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self.product_id = product_id
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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 icon(self):
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"""Return the icon for the frontend."""
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return ICON
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@property
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def state(self):
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"""Return the best price of the selected product."""
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if not self._device.prices:
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return None
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return self._device.prices[0]
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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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while len(self._device.prices) < 4:
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self._device.prices.append('None')
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attrs = {'device_name': self._device.name,
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'description': self.description,
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'unit_of_measurement': self._device.price_currency,
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'product_id': self.product_id,
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'price1': self._device.prices[0],
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'price2': self._device.prices[1],
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'price3': self._device.prices[2],
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'price4': self._device.prices[3]}
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return attrs
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@Throttle(MIN_TIME_BETWEEN_UPDATES)
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def update(self):
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"""Get the latest price from geizhals and updates the state."""
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self._device = self._geizhals.parse()
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