#!python

import sys, os, getpass
from ldaptor.protocols.ldap import distinguishedname, ldapclient, ldapconnector, ldapsyntax
from ldaptor import usage, config
from twisted.internet import reactor

def move(client, fromDN, toDN):
    e = ldapsyntax.LDAPEntry(client=client,
                             dn=fromDN)
    d = e.move(toDN)
    return d

exitStatus=0

def error(fail):
    print('fail:', fail.getErrorMessage(), file=sys.stderr)
    global exitStatus
    exitStatus=1

def main(cfg, fromDN, toDN,
         binddn, bindPassword):
    fromDN = distinguishedname.DistinguishedName(stringValue=fromDN)
    toDN = distinguishedname.DistinguishedName(stringValue=toDN)

    c = ldapconnector.LDAPClientCreator(reactor,
                                        ldapclient.LDAPClient)
    d = c.connect(dn=fromDN,
                  overrides=cfg.getServiceLocationOverrides())

    def _bind(proto, binddn, bindPassword):
        if binddn:
            pwd = bindPassword
            if pwd is None:
                pwd = getpass.getpass('Password for %s: ' % binddn)
            d=proto.bind(binddn, pwd)
        else:
            d=proto.bind()
        d.addCallback(lambda _: proto)
        return d
    d.addCallback(_bind, binddn, bindPassword)

    d.addCallback(move, fromDN, toDN)
    d.addErrback(error)
    d.addBoth(lambda x: reactor.stop())

    reactor.run()
    sys.exit(exitStatus)

class MyOptions(usage.Options, usage.Options_service_location, usage.Options_bind):
    """LDAPtor object rename utility"""

    def parseArgs(self, fromDN, toDN):
        self.opts['from'] = fromDN
        self.opts['to'] = toDN

if __name__ == "__main__":
    try:
        opts = MyOptions()
        opts.parseOptions()
    except usage.UsageError as ue:
        sys.stderr.write('{}: {}\n'.format(sys.argv[0], ue))
        sys.exit(1)

    from twisted.python import log
    log.startLogging(sys.stderr, setStdout=0)

    cfg = config.LDAPConfig(serviceLocationOverrides=opts['service-location'])

    bindPassword=None
    if opts['bind-auth-fd']:
        f=os.fdopen(opts['bind-auth-fd'])
        bindPassword=f.readline()
        assert bindPassword[-1]=='\n'
        bindPassword=bindPassword[:-1]
        f.close()

    main(cfg,
         opts['from'],
         opts['to'],
         opts['binddn'],
         bindPassword)
