core/homeassistant/components/tmb/sensor.py

128 lines
3.5 KiB
Python

"""Support for TMB (Transports Metropolitans de Barcelona) Barcelona public transport."""
from __future__ import annotations
from datetime import timedelta
import logging
from requests import HTTPError
from tmb import IBus
import voluptuous as vol
from homeassistant.components.sensor import (
PLATFORM_SCHEMA as SENSOR_PLATFORM_SCHEMA,
SensorEntity,
)
from homeassistant.const import CONF_NAME, UnitOfTime
from homeassistant.core import HomeAssistant
import homeassistant.helpers.config_validation as cv
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
from homeassistant.util import Throttle
_LOGGER = logging.getLogger(__name__)
CONF_APP_ID = "app_id"
CONF_APP_KEY = "app_key"
CONF_LINE = "line"
CONF_BUS_STOP = "stop"
CONF_BUS_STOPS = "stops"
ATTR_BUS_STOP = "stop"
ATTR_LINE = "line"
MIN_TIME_BETWEEN_UPDATES = timedelta(seconds=60)
LINE_STOP_SCHEMA = vol.Schema(
{
vol.Required(CONF_BUS_STOP): cv.string,
vol.Required(CONF_LINE): cv.string,
vol.Optional(CONF_NAME): cv.string,
}
)
PLATFORM_SCHEMA = SENSOR_PLATFORM_SCHEMA.extend(
{
vol.Required(CONF_APP_ID): cv.string,
vol.Required(CONF_APP_KEY): cv.string,
vol.Required(CONF_BUS_STOPS): vol.All(cv.ensure_list, [LINE_STOP_SCHEMA]),
}
)
def setup_platform(
hass: HomeAssistant,
config: ConfigType,
add_entities: AddEntitiesCallback,
discovery_info: DiscoveryInfoType | None = None,
) -> None:
"""Set up the sensors."""
ibus_client = IBus(config[CONF_APP_ID], config[CONF_APP_KEY])
sensors = []
for line_stop in config[CONF_BUS_STOPS]:
line = line_stop[CONF_LINE]
stop = line_stop[CONF_BUS_STOP]
if line_stop.get(CONF_NAME):
name = f"{line} - {line_stop[CONF_NAME]} ({stop})"
else:
name = f"{line} - {stop}"
sensors.append(TMBSensor(ibus_client, stop, line, name))
add_entities(sensors, True)
class TMBSensor(SensorEntity):
"""Implementation of a TMB line/stop Sensor."""
_attr_attribution = "Data provided by Transport Metropolitans de Barcelona"
_attr_icon = "mdi:bus-clock"
def __init__(self, ibus_client, stop, line, name):
"""Initialize the sensor."""
self._ibus_client = ibus_client
self._stop = stop
self._line = line.upper()
self._name = name
self._unit = UnitOfTime.MINUTES
self._state = None
@property
def name(self):
"""Return the name of the sensor."""
return self._name
@property
def native_unit_of_measurement(self):
"""Return the unit of measurement."""
return self._unit
@property
def unique_id(self):
"""Return a unique, HASS-friendly identifier for this entity."""
return f"{self._stop}_{self._line}"
@property
def native_value(self):
"""Return the next departure time."""
return self._state
@property
def extra_state_attributes(self):
"""Return the state attributes of the last update."""
return {
ATTR_BUS_STOP: self._stop,
ATTR_LINE: self._line,
}
@Throttle(MIN_TIME_BETWEEN_UPDATES)
def update(self) -> None:
"""Get the next bus information."""
try:
self._state = self._ibus_client.get_stop_forecast(self._stop, self._line)
except HTTPError:
_LOGGER.error(
"Unable to fetch data from TMB API. Please check your API keys are"
" valid"
)