# SPDX-FileCopyrightText: WTF Kooperative eG <https://wtf-eg.de/>
#
# SPDX-License-Identifier: AGPL-3.0-or-later

import uuid
import yaml

from app import app, db
from ki.models import User, Token


def auth(username, password):
    auth_file_path = app.config["KI_DATA_DIR"] + "/auth.yml"

    with open(auth_file_path, "r") as auth_file_stream:
        users = yaml.safe_load(auth_file_stream)

        if username not in users:
            return None

        auth_user = users[username]

        if auth_user["password"] != password:
            return None

        user = User.query.filter(User.auth_id.__eq__(username)).first()

        if user is None:
            user = User(auth_id=username)
            db.session.add(user)

        token = Token(token=str(uuid.uuid4()), user=user)
        db.session.add(token)
        db.session.commit()

    return token