from config import Config
from keycloak import KeycloakAdmin


class KeycloakHandler:
    Config.keycloak_password

    @staticmethod
    def login():
        KeycloakHandler.admin = KeycloakAdmin(
            server_url=Config.keycloak_url,
            username=Config.keycloak_user_name,
            password=Config.keycloak_password,
            realm_name=Config.keycloak_realm,
            verify=True
        )

    @staticmethod
    def get_user_by_card_id(card_id):
        users = KeycloakHandler.admin.get_users(
            { 'attributes': { 'FabCard': card_id }}
        )
        print(f'Found {len(users)} users with card_id: {card_id}')

        match len(users):
            case 0:
                return None
            case 1:
                print(f'FabCard matches with user {users[0]["username"]}')
                return users[0]
            case other:
                print(f'Error! too many users with card_id: {card_id}')
                return None

    @staticmethod
    def user_is_privileged(username):
        groups = KeycloakHandler.admin.get_user_groups(user_id=username)
        groups = [group['name'] for group in groups]

        if 'Mentoren' in groups:
            print('Overrided becouse of "Mentor" group')
            return True
        else:
            return False