#!/usr/bin/python3
#
# Univention Server Memberserver
#  sets LDAP server according to policy
#
# SPDX-FileCopyrightText: 2003-2025 Univention GmbH
# SPDX-License-Identifier: AGPL-3.0-only

import sys

from univention.config_registry import ConfigRegistry
from univention.config_registry.frontend import ucr_update
from univention.lib.policy_result import PolicyResultFailed, policy_result


configRegistry = ConfigRegistry(write_registry=ConfigRegistry.LDAP)
configRegistry.load()

found = False

ldap_hostdn = configRegistry.get('ldap/hostdn')
if ldap_hostdn:
    for key in ['ldap/server/name', 'ldap/server/addition']:
        ldap_server_string = configRegistry.get(key)
        if ldap_server_string:
            for k in ldap_server_string.split(' '):
                try:
                    results, _policies = policy_result(ldap_hostdn, ldap_server=k)
                except PolicyResultFailed:
                    continue

                addition = []
                updates = {}

                ldap_server_name = configRegistry.get('ldap/server/name')
                results = results.get('univentionLDAPServer', [])
                for new_ldap_server in results:
                    if not found:
                        if not ldap_server_name or new_ldap_server != ldap_server_name:
                            updates['ldap/server/name'] = new_ldap_server
                        found = True
                    else:
                        addition.append(new_ldap_server)

                old = configRegistry.get('ldap/server/addition', '')
                new = ' '.join(addition)
                if new != old:
                    updates['ldap/server/addition'] = new

                if updates:
                    ucr_update(configRegistry, updates)

                sys.exit(0)

sys.exit(1)
