107 lines
2.9 KiB
Python
107 lines
2.9 KiB
Python
"""Support for Solax inverter via local API."""
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import asyncio
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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.const import (
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TEMP_CELSIUS,
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CONF_IP_ADDRESS
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)
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from homeassistant.helpers.entity import Entity
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import homeassistant.helpers.config_validation as cv
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from homeassistant.components.sensor import PLATFORM_SCHEMA
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from homeassistant.exceptions import PlatformNotReady
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from homeassistant.helpers.event import async_track_time_interval
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_LOGGER = logging.getLogger(__name__)
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PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
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vol.Required(CONF_IP_ADDRESS): cv.string,
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})
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SCAN_INTERVAL = timedelta(seconds=30)
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async def async_setup_platform(hass, config, async_add_entities,
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discovery_info=None):
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"""Platform setup."""
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import solax
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api = solax.solax.RealTimeAPI(config[CONF_IP_ADDRESS])
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endpoint = RealTimeDataEndpoint(hass, api)
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hass.async_add_job(endpoint.async_refresh)
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async_track_time_interval(hass, endpoint.async_refresh, SCAN_INTERVAL)
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devices = []
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for sensor in solax.INVERTER_SENSORS:
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unit = solax.INVERTER_SENSORS[sensor][1]
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if unit == 'C':
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unit = TEMP_CELSIUS
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devices.append(Inverter(sensor, unit))
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endpoint.sensors = devices
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async_add_entities(devices)
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class RealTimeDataEndpoint:
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"""Representation of a Sensor."""
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def __init__(self, hass, api):
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"""Initialize the sensor."""
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self.hass = hass
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self.api = api
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self.data = {}
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self.ready = asyncio.Event()
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self.sensors = []
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async def async_refresh(self, now=None):
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"""Fetch new state data for the sensor.
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This is the only method that should fetch new data for Home Assistant.
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"""
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from solax import SolaxRequestError
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try:
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self.data = await self.api.get_data()
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self.ready.set()
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except SolaxRequestError:
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if now is not None:
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self.ready.clear()
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else:
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raise PlatformNotReady
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for sensor in self.sensors:
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if sensor.key in self.data:
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sensor.value = self.data[sensor.key]
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sensor.async_schedule_update_ha_state()
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class Inverter(Entity):
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"""Class for a sensor."""
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def __init__(self, key, unit):
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"""Initialize an inverter sensor."""
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self.key = key
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self.value = None
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self.unit = unit
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@property
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def state(self):
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"""State of this inverter attribute."""
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return self.value
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@property
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def name(self):
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"""Name of this inverter attribute."""
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return self.key
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@property
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def unit_of_measurement(self):
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"""Return the unit of measurement."""
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return self.unit
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@property
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def should_poll(self):
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"""No polling needed."""
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return False
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