app.py

from flask import Flask
from flask_migrate import Migrate
from extensions import db, migrate
from dotenv import load_dotenv
import os
import secrets
import logging
from routes import init_socketio

# Configure logging
logging.basicConfig(level=logging.INFO)

def create_app():
    app = Flask(__name__)
    
    # Load environment variables
    load_dotenv()
    
    # Configure app
    app.config['SECRET_KEY'] = os.getenv('FLASK_SECRET_KEY', secrets.token_hex(16))
    app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///calendar.db'
    app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
    app.config['UPLOAD_FOLDER'] = os.path.join(os.path.dirname(os.path.abspath(__file__)), 'static', 'uploads')
    app.config['MAX_CONTENT_LENGTH'] = 16 * 1024 * 1024  # 16MB max file size

    # Initialize extensions
    db.init_app(app)
    migrate.init_app(app, db)

    socketio = init_socketio(app)

    # Register blueprints
    from routes import (
        main_routes,
        auth_routes,
        calendar_routes,
        message_routes,
        resource_routes,
        study_routes,
        notification_routes,
        class_routes
    )
    app.register_blueprint(main_routes, url_prefix='/')
    app.register_blueprint(auth_routes, url_prefix='/auth')
    app.register_blueprint(calendar_routes, url_prefix='/calendar')
    app.register_blueprint(message_routes, url_prefix='/messages')
    app.register_blueprint(resource_routes, url_prefix='/resources')
    app.register_blueprint(study_routes, url_prefix='/study')
    app.register_blueprint(notification_routes)
    app.register_blueprint(class_routes, url_prefix='/classes')

    return app

# Create the application instance
app = create_app()

# Main entry point of the application
if __name__ == '__main__':
    socketio.run(app, debug=True)