import os
import sys
from django.apps import AppConfig


class QuizAppConfig(AppConfig):
    name = 'quiz'
    default_auto_field = 'django.db.models.BigAutoField'

    def ready(self):
        """
        App initialization code.
        Starts the auto-import watcher in a background thread.
        """
        # Only run in the main process (not in reloader process)
        # And not during management commands or pytest tests
        is_management_command = any(cmd in sys.argv for cmd in ['import_questions', 'migrate', 'makemigrations', 'shell'])
        is_pytest = 'pytest' in sys.argv[0] or 'PYTEST_CURRENT_TEST' in os.environ

        if not is_management_command and not is_pytest and (os.environ.get('RUN_MAIN') == 'true' or os.environ.get('RUN_MAIN') is None):
            from quiz.utils.watcher import start_watcher_thread
            start_watcher_thread()