#!/usr/bin/env python

import datetime, os, sys
import syslog

# boilerplate
basedir = os.path.abspath(os.path.join(os.path.dirname(__file__), "../.."))
sys.path = [ basedir ] + sys.path
os.environ["DJANGO_SETTINGS_MODULE"] = "ietf.settings"

virtualenv_activation = os.path.join(basedir, "env", "bin", "activate_this.py")
if os.path.exists(virtualenv_activation):
    execfile(virtualenv_activation, dict(__file__=virtualenv_activation))

syslog.openlog(os.path.basename(__file__), syslog.LOG_PID, syslog.LOG_USER)

import django
django.setup()

from ietf.utils.log import logger

try:
    from ietf.doc.expire import ( in_draft_expire_freeze, get_expired_drafts, expirable_draft,
        send_expire_notice_for_draft, expire_draft, clean_up_draft_files )

    if not in_draft_expire_freeze():
        syslog.syslog("Expiring drafts ...")
        for doc in get_expired_drafts():
            # verify expirability -- it might have changed after get_expired_drafts() was run
            # (this whole loop took about 2 minutes on 04 Jan 2018)
            if expirable_draft(doc) and doc.expires < datetime.datetime.today() + datetime.timedelta(1):
                send_expire_notice_for_draft(doc)
                expire_draft(doc)
                syslog.syslog("  Expired draft %s-%s" % (doc.name, doc.rev))

    syslog.syslog("Cleaning up draft files")
    clean_up_draft_files()
except Exception as e:
    logger.error("Exception in expire-ids: %s" % e)