# Copyright (c) 2001-2004 Twisted Matrix Laboratories.
# See LICENSE for details.

#
import direct, unix

connectTypes = {"direct" : direct.connect,
                "unix" : unix.connect}

def connect(host, port, options, verifyHostKey, userAuthObject):
    useConnects = options.conns or ['unix', 'direct']
    return _ebConnect(None, useConnects, host, port, options, verifyHostKey,
                      userAuthObject)

def _ebConnect(f, useConnects, host, port, options, vhk, uao):
    if not useConnects:
        return f
    connectType = useConnects.pop(0)
    f = connectTypes[connectType]
    d = f(host, port, options, vhk, uao)
    d.addErrback(_ebConnect, useConnects, host, port, options, vhk, uao)
    return d