"""
Flask Application Factory

Creates and configures the Flask application with SocketIO support for real-time
updates of the Markov economics simulation.
"""

from flask import Flask
from flask_socketio import SocketIO
from config import config
from app.models import SimulationManager

# Initialize SocketIO
socketio = SocketIO(cors_allowed_origins="*")

# Global simulation manager instance
simulation_manager = SimulationManager()


def create_app(config_name='development'):
    """
    Create and configure the Flask application.
    
    Args:
        config_name: Configuration profile to use
        
    Returns:
        Configured Flask application instance
    """
    app = Flask(__name__)
    app.config.from_object(config[config_name])
    
    # Initialize extensions
    socketio.init_app(app, async_mode='threading')
    
    # Register blueprints
    from .routes.main import main_bp
    from .routes.api import api_bp
    
    app.register_blueprint(main_bp)
    app.register_blueprint(api_bp, url_prefix='/api')
    
    return app