import getpass
from argparse import Namespace, _SubParsersAction

from mdrsclient.api import UserApi
from mdrsclient.commands.base import BaseCommand
from mdrsclient.config import ConfigFile
from mdrsclient.connection import MDRSConnection
from mdrsclient.exceptions import MissingConfigurationException


class LoginCommand(BaseCommand):
    @classmethod
    def register(cls, parsers: _SubParsersAction) -> None:
        command = cls()
        login_parser = parsers.add_parser("login", help="login to remote host")
        login_parser.add_argument("remote", help="label of remote host")
        login_parser.set_defaults(func=command.login)

    def login(self, args: Namespace) -> None:
        remote = self._parse_remote_host(args.remote)
        config = ConfigFile(remote)
        if config.url is None:
            raise MissingConfigurationException(f"Remote host `{remote}` is not found.")
        connection = MDRSConnection(config.remote, config.url)
        username = input("Username: ").strip()
        password = getpass.getpass("Password: ").strip()
        user_api = UserApi(connection)
        (user, token) = user_api.auth(username, password)
        print("Login Successful")
        connection.user = user
        connection.token = token