'''
Created on Dec 16, 2014

@author: mreynolds
'''
import os
import sys
import time
import ldap
import time
import logging
import socket
import pytest
import threading
from lib389 import DirSrv, Entry, tools, tasks
from lib389.tools import DirSrvTools
from lib389._constants import *
from lib389.properties import *
from constants import *

log = logging.getLogger(__name__)

NUM_USERS = 250


def openConnection(inst):
    # Open a new connection to our LDAP server
    server = DirSrv(verbose=False)
    args_instance[SER_HOST] = HOST_STANDALONE
    args_instance[SER_PORT] = PORT_STANDALONE
    args_instance[SER_SERVERID_PROP] = SERVERID_STANDALONE
    args_standalone = args_instance.copy()
    server.allocate(args_standalone)
    server.open()

    return server


# Configure Referential Integrity Plugin for stress test
def configureRI(inst):
    inst.plugins.enable(name=PLUGIN_REFER_INTEGRITY)
    PLUGIN_DN = 'cn=' + PLUGIN_REFER_INTEGRITY + ',cn=plugins,cn=config'
    try:
        inst.modify_s(PLUGIN_DN, [(ldap.MOD_REPLACE, 'referint-membership-attr', 'uniquemember')])
    except ldap.LDAPError, e:
        log.error('configureRI: Failed to configure RI plugin: error ' + e.message['desc'])
        assert False


# Configure MemberOf Plugin for stress test
def configureMO(inst):
    inst.plugins.enable(name=PLUGIN_MEMBER_OF)
    PLUGIN_DN = 'cn=' + PLUGIN_MEMBER_OF + ',cn=plugins,cn=config'
    try:
        inst.modify_s(PLUGIN_DN, [(ldap.MOD_REPLACE, 'memberofgroupattr', 'uniquemember')])
    except ldap.LDAPError, e:
        log.error('configureMO: Failed to update config(uniquemember): error ' + e.message['desc'])
        assert False


class DelUsers(threading.Thread):
    def __init__(self, inst, rdnval):
        threading.Thread.__init__(self)
        self.daemon = True
        self.inst = inst
        self.rdnval = rdnval

    def run(self):
        conn = openConnection(self.inst)
        idx = 0
        log.info('DelUsers - Deleting ' + str(NUM_USERS) + ' entries (' + self.rdnval + ')...')
        while idx < NUM_USERS:
            USER_DN = 'uid=' + self.rdnval + str(idx) + ',' + DEFAULT_SUFFIX
            try:
                conn.delete_s(USER_DN)
            except ldap.LDAPError, e:
                log.error('DeleteUsers: failed to delete (' + USER_DN + ') error: ' + e.message['desc'])
                assert False

            idx += 1

        conn.close()
        log.info('DelUsers - Finished deleting ' + str(NUM_USERS) + ' entries (' + self.rdnval + ').')


class AddUsers(threading.Thread):
    def __init__(self, inst, rdnval, addToGroup):
        threading.Thread.__init__(self)
        self.daemon = True
        self.inst = inst
        self.addToGroup = addToGroup
        self.rdnval = rdnval

    def run(self):
        # Start adding users
        conn = openConnection(self.inst)
        idx = 0

        if self.addToGroup:
            GROUP_DN = 'cn=stress-group,' + DEFAULT_SUFFIX
            try:
                conn.add_s(Entry((GROUP_DN,
                    {'objectclass': 'top groupOfNames groupOfUniqueNames extensibleObject'.split(),
                     'uid': 'user' + str(idx)})))
            except ldap.ALREADY_EXISTS:
                pass
            except ldap.LDAPError, e:
                log.error('AddUsers: failed to add group (' + USER_DN + ') error: ' + e.message['desc'])
                assert False

        log.info('AddUsers - Adding ' + str(NUM_USERS) + ' entries (' + self.rdnval + ')...')

        while idx < NUM_USERS:
            USER_DN = 'uid=' + self.rdnval + str(idx) + ',' + DEFAULT_SUFFIX
            try:
                conn.add_s(Entry((USER_DN, {'objectclass': 'top extensibleObject'.split(),
                           'uid': 'user' + str(idx)})))
            except ldap.LDAPError, e:
                log.error('AddUsers: failed to add (' + USER_DN + ') error: ' + e.message['desc'])
                assert False

            if self.addToGroup:
                # Add the user to the group
                try:
                    conn.modify_s(GROUP_DN, [(ldap.MOD_ADD, 'uniquemember', USER_DN)])
                except ldap.LDAPError, e:
                    log.error('AddUsers: Failed to add user' + USER_DN + ' to group: error ' + e.message['desc'])
                    assert False

            idx += 1

        conn.close()
        log.info('AddUsers - Finished adding ' + str(NUM_USERS) + ' entries (' + self.rdnval + ').')