from django.apps import AppConfig
from django.db.utils import OperationalError, ProgrammingError
from .models import ShopConfiguration

class ConfigurationConfig(AppConfig):
    default_auto_field = 'django.db.models.BigAutoField'
    name = 'configuration'

    def ready(self):
        """Ensure the ShopConfiguration singleton exists at startup.

        Wrapped in broad DB error handling so that commands like
        makemigrations/migrate don't fail when the table does not yet exist.
        """
        try:
            ShopConfiguration.get_solo()
            
        except (OperationalError, ProgrammingError):
            ShopConfiguration.objects.create()