app.py

import os
import logging

from flask import Flask
from flask_sqlalchemy import SQLAlchemy
from sqlalchemy.orm import DeclarativeBase
from werkzeug.middleware.proxy_fix import ProxyFix

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


class Base(DeclarativeBase):
    pass


db = SQLAlchemy(model_class=Base)

# create the app
app = Flask(__name__)
app.secret_key = os.environ.get("SESSION_SECRET",
                                "dev-secret-key-change-in-production")
app.wsgi_app = ProxyFix(app.wsgi_app, x_proto=1, x_host=1)

# configure the database, relative to the app instance folder
app.config["SQLALCHEMY_DATABASE_URI"] = os.environ.get(
    "DATABASE_URL", "sqlite:///dify_learning.db")
app.config["SQLALCHEMY_ENGINE_OPTIONS"] = {
    "pool_recycle": 300,
    "pool_pre_ping": True,
}

# initialize the app with the extension
db.init_app(app)

# Import routes after app creation to avoid circular imports
from routes import *

with app.app_context():
    # Make sure to import the models here or their tables won't be created
    import models
    db.create_all()

if __name__ == '__main__':
    app.run(host='0.0.0.0', port=7860, debug=True)