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mirror of https://github.com/home-assistant/core synced 2024-07-30 21:18:57 +02:00
ha-core/homeassistant/components/startca/sensor.py
2021-08-23 22:33:59 +02:00

232 lines
7.2 KiB
Python

"""Support for Start.ca Bandwidth Monitor."""
from __future__ import annotations
from datetime import timedelta
import logging
from xml.parsers.expat import ExpatError
import async_timeout
import voluptuous as vol
import xmltodict
from homeassistant.components.sensor import (
PLATFORM_SCHEMA,
SensorEntity,
SensorEntityDescription,
)
from homeassistant.const import (
CONF_API_KEY,
CONF_MONITORED_VARIABLES,
CONF_NAME,
DATA_GIGABYTES,
HTTP_OK,
PERCENTAGE,
)
from homeassistant.helpers.aiohttp_client import async_get_clientsession
import homeassistant.helpers.config_validation as cv
from homeassistant.util import Throttle
_LOGGER = logging.getLogger(__name__)
DEFAULT_NAME = "Start.ca"
CONF_TOTAL_BANDWIDTH = "total_bandwidth"
MIN_TIME_BETWEEN_UPDATES = timedelta(hours=1)
REQUEST_TIMEOUT = 5 # seconds
SENSOR_TYPES: tuple[SensorEntityDescription, ...] = (
SensorEntityDescription(
key="usage",
name="Usage Ratio",
native_unit_of_measurement=PERCENTAGE,
icon="mdi:percent",
),
SensorEntityDescription(
key="usage_gb",
name="Usage",
native_unit_of_measurement=DATA_GIGABYTES,
icon="mdi:download",
),
SensorEntityDescription(
key="limit",
name="Data limit",
native_unit_of_measurement=DATA_GIGABYTES,
icon="mdi:download",
),
SensorEntityDescription(
key="used_download",
name="Used Download",
native_unit_of_measurement=DATA_GIGABYTES,
icon="mdi:download",
),
SensorEntityDescription(
key="used_upload",
name="Used Upload",
native_unit_of_measurement=DATA_GIGABYTES,
icon="mdi:upload",
),
SensorEntityDescription(
key="used_total",
name="Used Total",
native_unit_of_measurement=DATA_GIGABYTES,
icon="mdi:download",
),
SensorEntityDescription(
key="grace_download",
name="Grace Download",
native_unit_of_measurement=DATA_GIGABYTES,
icon="mdi:download",
),
SensorEntityDescription(
key="grace_upload",
name="Grace Upload",
native_unit_of_measurement=DATA_GIGABYTES,
icon="mdi:upload",
),
SensorEntityDescription(
key="grace_total",
name="Grace Total",
native_unit_of_measurement=DATA_GIGABYTES,
icon="mdi:download",
),
SensorEntityDescription(
key="total_download",
name="Total Download",
native_unit_of_measurement=DATA_GIGABYTES,
icon="mdi:download",
),
SensorEntityDescription(
key="total_upload",
name="Total Upload",
native_unit_of_measurement=DATA_GIGABYTES,
icon="mdi:download",
),
SensorEntityDescription(
key="used_remaining",
name="Remaining",
native_unit_of_measurement=DATA_GIGABYTES,
icon="mdi:download",
),
)
SENSOR_KEYS: list[str] = [desc.key for desc in SENSOR_TYPES]
PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
{
vol.Required(CONF_MONITORED_VARIABLES): vol.All(
cv.ensure_list, [vol.In(SENSOR_KEYS)]
),
vol.Required(CONF_API_KEY): cv.string,
vol.Required(CONF_TOTAL_BANDWIDTH): cv.positive_int,
vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
}
)
async def async_setup_platform(hass, config, async_add_entities, discovery_info=None):
"""Set up the sensor platform."""
websession = async_get_clientsession(hass)
apikey = config[CONF_API_KEY]
bandwidthcap = config[CONF_TOTAL_BANDWIDTH]
ts_data = StartcaData(hass.loop, websession, apikey, bandwidthcap)
ret = await ts_data.async_update()
if ret is False:
_LOGGER.error("Invalid Start.ca API key: %s", apikey)
return
name = config[CONF_NAME]
monitored_variables = config[CONF_MONITORED_VARIABLES]
entities = [
StartcaSensor(ts_data, name, description)
for description in SENSOR_TYPES
if description.key in monitored_variables
]
async_add_entities(entities, True)
class StartcaSensor(SensorEntity):
"""Representation of Start.ca Bandwidth sensor."""
def __init__(self, startcadata, name, description: SensorEntityDescription):
"""Initialize the sensor."""
self.entity_description = description
self.startcadata = startcadata
self._attr_name = f"{name} {description.name}"
async def async_update(self):
"""Get the latest data from Start.ca and update the state."""
await self.startcadata.async_update()
sensor_type = self.entity_description.key
if sensor_type in self.startcadata.data:
self._attr_native_value = round(self.startcadata.data[sensor_type], 2)
class StartcaData:
"""Get data from Start.ca API."""
def __init__(self, loop, websession, api_key, bandwidth_cap):
"""Initialize the data object."""
self.loop = loop
self.websession = websession
self.api_key = api_key
self.bandwidth_cap = bandwidth_cap
# Set unlimited users to infinite, otherwise the cap.
self.data = (
{"limit": self.bandwidth_cap}
if self.bandwidth_cap > 0
else {"limit": float("inf")}
)
@staticmethod
def bytes_to_gb(value):
"""Convert from bytes to GB.
:param value: The value in bytes to convert to GB.
:return: Converted GB value
"""
return float(value) * 10 ** -9
@Throttle(MIN_TIME_BETWEEN_UPDATES)
async def async_update(self):
"""Get the Start.ca bandwidth data from the web service."""
_LOGGER.debug("Updating Start.ca usage data")
url = f"https://www.start.ca/support/usage/api?key={self.api_key}"
with async_timeout.timeout(REQUEST_TIMEOUT):
req = await self.websession.get(url)
if req.status != HTTP_OK:
_LOGGER.error("Request failed with status: %u", req.status)
return False
data = await req.text()
try:
xml_data = xmltodict.parse(data)
except ExpatError:
return False
used_dl = self.bytes_to_gb(xml_data["usage"]["used"]["download"])
used_ul = self.bytes_to_gb(xml_data["usage"]["used"]["upload"])
grace_dl = self.bytes_to_gb(xml_data["usage"]["grace"]["download"])
grace_ul = self.bytes_to_gb(xml_data["usage"]["grace"]["upload"])
total_dl = self.bytes_to_gb(xml_data["usage"]["total"]["download"])
total_ul = self.bytes_to_gb(xml_data["usage"]["total"]["upload"])
limit = self.data["limit"]
if self.bandwidth_cap > 0:
self.data["usage"] = 100 * used_dl / self.bandwidth_cap
else:
self.data["usage"] = 0
self.data["usage_gb"] = used_dl
self.data["used_download"] = used_dl
self.data["used_upload"] = used_ul
self.data["used_total"] = used_dl + used_ul
self.data["grace_download"] = grace_dl
self.data["grace_upload"] = grace_ul
self.data["grace_total"] = grace_dl + grace_ul
self.data["total_download"] = total_dl
self.data["total_upload"] = total_ul
self.data["used_remaining"] = limit - used_dl
return True