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transport_standalone.py
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import logging
import sys
import os
import json
from threading import Timer
from luma.core.virtual import terminal
from dotenv import load_dotenv
from joedisplay import get_device, StageController
from transport.stages import TrainDepartureBoardStage
from transport.transport_api import TransportAPI, TrainDisplayBoardDecorator
"""
Standalone train departures board running in a single process.
Required environment variables:
- `TRANSPORTAPI_APP_ID` - Transport API app ID
- `TRANSPORTAPI_APP_KEY` - Transport API app key
- `DEPATURE_STATION` - CRS code of station to show
Data will be refreshed every 30 seconds.
"""
load_dotenv()
REFRESH_INTERVAL_SECONDS = 30
logger = logging.getLogger(__name__)
logging.basicConfig(stream=sys.stdout, level=logging.DEBUG)
device = get_device()
term = terminal(device, None)
term.println('Please wait, loading data...')
term.flush()
controller = StageController(device)
controller.add_stage(TrainDepartureBoardStage)
api = TrainDisplayBoardDecorator(TransportAPI(os.environ.get(
"TRANSPORTAPI_APP_ID"), os.environ.get("TRANSPORTAPI_APP_KEY")))
def load_data_and_update_display():
logger.info("Refreshing...")
event = api.load_departures_for_station(
os.environ.get("DEPARTURE_STATION"), top=4)
controller.event_handler(event, None)
# Schedule refresh every `REFRESH_INTERVAL_SECONDS`
Timer(REFRESH_INTERVAL_SECONDS, load_data_and_update_display).start()
if __name__ == "__main__":
load_data_and_update_display()