"""
ASGI config for hospital_management project.

It exposes the ASGI callable as a module-level variable named ``application``.

For more information on this file, see
https://docs.djangoproject.com/en/5.2/howto/deployment/asgi/
"""

import os
from django.core.asgi import get_asgi_application

# Set Django settings module
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'hospital_management.settings')

# Initialize Django ASGI application early to ensure AppRegistry is populated
# before importing code that may import ORM models.
django_asgi_app = get_asgi_application()

# Import Channels components after Django initialization
from channels.routing import ProtocolTypeRouter, URLRouter
from channels.auth import AuthMiddlewareStack
from channels.security.websocket import AllowedHostsOriginValidator

# Import WebSocket routing
from hospital_management.routing import websocket_urlpatterns

# Configure ASGI application
application = ProtocolTypeRouter({
    # Django's ASGI application to handle traditional HTTP requests
    "http": django_asgi_app,
    
    # WebSocket handler with authentication and origin validation
    "websocket": AllowedHostsOriginValidator(
        AuthMiddlewareStack(
            URLRouter(websocket_urlpatterns)
        )
    ),
})