from uuid import uuid4

from starlette.requests import HTTPConnection

from app.config import settings
from app.connectors.twilio import TwilioConnector
from app.models import User

users = {}


def get_or_create_user(conn: HTTPConnection) -> User:
    user_id = conn.cookies.get("user_id")
    existing = users.get(user_id)
    if not existing:
        # If cookie existed but no server state -> rehydration scenario
        if user_id:
            users[user_id] = User(
                id=user_id,
                connector=TwilioConnector(),
                settings=settings.clone_default_user_settings(),
                new_user=False,
                client_settings_needed=True,
            )
            return users[user_id]
        # Fresh user (no cookie)
        user_id = str(uuid4())
        users[user_id] = User(
            id=user_id,
            connector=TwilioConnector(),
            settings=settings.clone_default_user_settings(),
        )
        return users[user_id]
    return existing