import sys
import socket
from urllib.parse import urlparse

from sfa.util.sfalogging import logger
import xmlrpc.client


class DummyShell:
    """
    A simple xmlrpc shell to the dummy testbed API instance

    """

    direct_calls = ['AddNode', 'AddSlice', 'AddUser', 'AddUserKey', 'AddUserToSlice', 'AddSliceToNodes',
                    'GetTestbedInfo', 'GetNodes', 'GetSlices', 'GetUsers',
                    'DeleteNode', 'DeleteSlice', 'DeleteUser', 'DeleteKey', 'DeleteUserFromSlice',
                    'DeleteSliceFromNodes',
                    'UpdateNode', 'UpdateSlice', 'UpdateUser',
                    ]

    def __init__(self, config):
        url = config.SFA_DUMMY_URL
        self.proxy = xmlrpc.client.ServerProxy(
            url, verbose=False, allow_none=True)

    def __getattr__(self, name):
        def func(*args, **kwds):
            if not name in DummyShell.direct_calls:
                raise Exception(
                    "Illegal method call %s for DUMMY driver" % (name))
            result = getattr(self.proxy, name)(*args, **kwds)
            logger.debug('DummyShell %s returned ... ' % (name))
            return result
        return func