32 lines
1.2 KiB
Python
32 lines
1.2 KiB
Python
import os
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import datetime
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import json
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from django.apps import AppConfig
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from django.conf import settings
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from simulation import SimulationThread
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class TrafficlightfrontendConfig(AppConfig):
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default_auto_field = 'django.db.models.BigAutoField'
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name = 'trafficlightfrontend'
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initialized = False
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simulation_thread = None
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# Note as per documentation, may be called more than once
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# Therefore needs to be idempotent or use flag
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def ready(self):
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# Ensure RUN_MAIN to avoid starting thread on runserver "change watchdog" instance
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if TrafficlightfrontendConfig.initialized or os.environ.get("RUN_MAIN") is None:
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return
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# print("Traffic Light Frontend: initialization.")
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# print("Current working directory: {}".format(os.getcwd()))
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periods = json.load(open(os.path.join(settings.BASE_DIR, settings.SIMULATION_DATA_FILE)))
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SimulationThread.initialize(periods, start_time=datetime.time.fromisoformat(settings.SIMULATION_START_TIME), time_factor=settings.SIMULATION_TIME_FACTOR, verbose=False)
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SimulationThread.get_instance().start()
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TrafficlightfrontendConfig.initialized = True
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