app/__init__.py

from flask import Flask
from flask_sqlalchemy import SQLAlchemy
from flask_login import LoginManager
from celery import Celery
import redis

db = SQLAlchemy()
login = LoginManager()
celery = Celery(__name__)
cache = redis.Redis()

def create_app():
    # Create the Flask app first
    app = Flask(__name__)

    # Load configuration
    app.config.from_object('config.Config')

    # Set the instance path after loading the config
    app.instance_path = app.config['INSTANCE_PATH']

    # Initialize extensions
    db.init_app(app)
    login.init_app(app)
    celery.conf.update(app.config)
    
    # Register Blueprints
    from .routes.auth import auth_bp
    from .routes.dashboard import dashboard_bp
    from .routes.api import api_bp
    from .routes.compliance import compliance_bp
    app.register_blueprint(auth_bp)
    app.register_blueprint(dashboard_bp)
    app.register_blueprint(api_bp)
    app.register_blueprint(compliance_bp)
    
    return app