ni-mail/app/__init__.py

import os
from flask import Flask, render_template, jsonify
from dotenv import load_dotenv
from app.db import db
from app.api import accounts, emails

__version__ = "1.1.0"

def create_app():
    load_dotenv()
    app = Flask(__name__)
    
    data_dir = os.getenv("DATA_DIR", os.getcwd())
    default_db = f"sqlite:///{os.path.join(data_dir, 'ni_mail.db')}"
    db_path = os.getenv("DATABASE_URL", default_db)
    
    app.config["SQLALCHEMY_DATABASE_URI"] = db_path
    app.config["SQLALCHEMY_TRACK_MODIFICATIONS"] = False
    app.config["SECRET_KEY"] = os.getenv("SECRET_KEY", "ni-mail-secret-key-v1.1.0")
    
    db.init_app(app)
    
    app.register_blueprint(accounts.bp)
    app.register_blueprint(emails.bp)
    
    @app.route("/")
    def index():
        return render_template("index.html")
        
    @app.route("/health")
    def health():
        return jsonify({
            "status": "ok",
            "app": "ni-mail",
            "version": __version__
        })
        
    with app.app_context():
        db.create_all()
        
    return app