import os
from flask import Flask, render_template
from pathlib import Path
from .auth import login_required


DATABASE_NAME = "kanken_online.sqlite"
def create_app(test_config=None):
    app = Flask(__name__, instance_relative_config=True)
    app.config.from_mapping(
        SECRET_KEY="dev",
        DATABASE=str(Path(app.instance_path) / DATABASE_NAME)
    )

    if test_config is None:
        app.config.from_pyfile("config.py", silent=True)
    else:
        app.config.from_mapping(test_config)
    
    # Ensure instance path exists
    os.makedirs(app.instance_path, exist_ok=True)

    @app.route("/hello")
    def hello():
        return "Hello, World!"
    
    @app.route("/")
    def index():
        return render_template("index.html")
    
    @app.route("/options")
    @login_required
    def options():
        return "options"
    
    from . import database
    database.initialize_app(app)

    from . import auth, api
    app.register_blueprint(auth.blueprint)
    app.register_blueprint(api.blueprint)

    return app