#!/usr/bin/python3
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"""This tool lists expired blocklist entries."""

from argparse import ArgumentParser
from datetime import datetime

from univention.admin.blocklist import BLOCKLIST_BASE
from univention.udm import UDM


def is_expired(blockedUntil):
    expired_time = datetime.strptime(blockedUntil, "%Y%m%d%H%M%SZ")
    current_time = datetime.utcnow()
    return current_time > expired_time


if __name__ == '__main__':
    parser = ArgumentParser(description=__doc__)
    parser.add_argument(
        "--remove-expired",
        help="Remove expired entries from the blocklist.",
        action='store_true',
        default=False,
        required=False,
    )
    options = parser.parse_args()
    blocklist_mod = UDM.admin().version(3).get('blocklists/entry')
    now = datetime.now()
    print(f'{now} - searching for expired entries')
    for entry in blocklist_mod.search(base=BLOCKLIST_BASE):
        if is_expired(entry.props.blockedUntil):
            now = datetime.now()
            if options.remove_expired:
                print(f'{now} - deleting expired entry: {entry.dn}')
                entry.delete()
            else:
                print(f'expired entry: {entry.dn}')
