app/__init__.py

from flask import Flask
from flask_socketio import SocketIO
from app.config import Config
import os

# Create SocketIO instance globally
socketio = SocketIO()

def create_app(config_class=Config):
    app = Flask(__name__)
    app.config.from_object(config_class)
    
    # IMPORTANT: Set a strong secret key for sessions
    app.secret_key = os.environ.get('SECRET_KEY') or os.urandom(24)
    
    # Ensure upload directories exist
    os.makedirs(app.config['UPLOAD_FOLDER'], exist_ok=True)
    os.makedirs(app.config['OUTPUT_FOLDER'], exist_ok=True)
    
    # Initialize SocketIO with proper configuration for Hugging Face Spaces
    socketio.init_app(
        app, 
        cors_allowed_origins="*",
        async_mode='threading',  # Changed from eventlet
        logger=True,
        engineio_logger=True,
        ping_timeout=60,
        ping_interval=25
    )
    
    # Register blueprints
    from app.routes import dashboard_bp, setup_bp
    app.register_blueprint(dashboard_bp)
    app.register_blueprint(setup_bp, url_prefix='/setup')
    
    return app