import os
import sys
import time
import ldap
import logging
import pytest
from lib389 import DirSrv, Entry, tools, tasks
from lib389.tools import DirSrvTools
from lib389._constants import *
from lib389.properties import *
from lib389.tasks import *

log = logging.getLogger(__name__)

installation_prefix = None


class TopologyStandalone(object):
    def __init__(self, standalone):
        standalone.open()
        self.standalone = standalone


@pytest.fixture(scope="module")
def topology(request):
    '''
        This fixture is used to standalone topology for the 'module'.
    '''
    global installation_prefix

    if installation_prefix:
        args_instance[SER_DEPLOYED_DIR] = installation_prefix

    standalone = DirSrv(verbose=False)

    # Args for the standalone instance
    args_instance[SER_HOST] = HOST_STANDALONE
    args_instance[SER_PORT] = PORT_STANDALONE
    args_instance[SER_SERVERID_PROP] = SERVERID_STANDALONE
    args_standalone = args_instance.copy()
    standalone.allocate(args_standalone)

    # Get the status of the instance and restart it if it exists
    instance_standalone = standalone.exists()

    # Remove the instance
    if instance_standalone:
        standalone.delete()

    # Create the instance
    standalone.create()

    # Used to retrieve configuration information (dbdir, confdir...)
    standalone.open()

    # clear the tmp directory
    standalone.clearTmpDir(__file__)

    # Here we have standalone instance up and running
    return TopologyStandalone(standalone)


def test_ticket47953(topology):
    """
        Test that we can delete an aci that has an invalid syntax.
        Sart by importing an ldif with a "bad" aci, then simply try
        to remove that value without error.
    """

    log.info('Testing Ticket 47953 - Test we can delete aci that has invalid syntax')

    #
    # Import an invalid ldif
    #
    ldif_file = topology.standalone.getDir(__file__, DATA_DIR) + "ticket47953.ldif"
    importTask = Tasks(topology.standalone)
    args = {TASK_WAIT: True}
    try:
        importTask.importLDIF(DEFAULT_SUFFIX, None, ldif_file, args)
    except ValueError:
        assert False

    #
    # Delete the invalid aci
    #
    acival = '(targetattr ="fffff")(version 3.0;acl "Directory Administrators Group"' + \
             ';allow (all) (groupdn = "ldap:///cn=Directory Administrators, dc=example,dc=com");)'

    log.info('Attempting to remove invalid aci...')
    try:
        topology.standalone.modify_s(DEFAULT_SUFFIX, [(ldap.MOD_DELETE, 'aci', acival)])
        log.info('Removed invalid aci.')
    except ldap.LDAPError, e:
        log.error('Failed to remove invalid aci: ' + e.message['desc'])
        assert False


def test_ticket47953_final(topology):
    topology.standalone.delete()
    log.info('Testcase PASSED')


def run_isolated():
    '''
        run_isolated is used to run these test cases independently of a test scheduler (xunit, py.test..)
        To run isolated without py.test, you need to
            - edit this file and comment '@pytest.fixture' line before 'topology' function.
            - set the installation prefix
            - run this program
    '''
    global installation_prefix
    installation_prefix = None

    topo = topology(True)
    test_ticket47953(topo)
    test_ticket47953_final(topo)


if __name__ == '__main__':
    run_isolated()