"""Flask app factory for HAMeter web UI."""

import os

from flask import Flask

from hameter.state import AppState


def create_app(app_state: AppState) -> Flask:
    app = Flask(__name__)
    app.secret_key = os.environ.get("FLASK_SECRET_KEY", os.urandom(24))
    app.config["APP_STATE"] = app_state

    from hameter.web.routes import bp
    app.register_blueprint(bp)

    return app