from zope.interface import Attribute, Interface
from .IUser import IUser


class IDatabaseService(Interface):
    """Interface to create databases for users."""

    type = Attribute('the type of database')
    host = Attribute('the database address')
    auth_username = Attribute('username of user creating connection')
    auth_password = Attribute('password of user creating connection')

    def create_db(username: str) -> str:
        """create a database for user and return its password"""