#!/usr/bin/env python
# -*- coding: utf-8 -*-
# -*- Python -*-
#
# $Id: generate-wg-aliases $
#
# Author: Markus Stenberg <markus.stenberg@iki.fi>
#
"""

This code dumps Django model IETFWG's contents as two sets of postfix
mail lists: -ads, and -chairs

"""

# boilerplate (from various other ietf/bin scripts)
import os, sys
filename = os.path.abspath(__file__)
basedir = os.path.abspath(os.path.join(os.path.dirname(__file__), "../.."))
sys.path = [ basedir ] + sys.path
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "ietf.settings")

import django
django.setup()

from django.conf import settings

from ietf.group.models import Group
from ietf.group.utils import get_group_ads_emails, get_group_chairs_emails, get_area_ads_emails, get_area_chairs_emails
from ietf.utils.aliases import dump_sublist

# from secr/utils/group.py..
ACTIVE_STATES=['active', 'bof', 'proposed']

if __name__ == '__main__':
    import datetime
    import time

    # Year ago?
    #show_since = datetime.datetime.now() - datetime.timedelta(365)

    # 2 years ago?
    #show_since = datetime.datetime.now() - datetime.timedelta(2 * 365)

    # 3 years ago?
    #show_since = datetime.datetime.now() - datetime.timedelta(3 * 365)

    # 5 years ago?
    show_since = datetime.datetime.now() - datetime.timedelta(5 * 365)

    date = time.strftime("%Y-%m-%d_%H:%M:%S")
    signature = '# Generated by %s at %s\n' % (filename, date)

    afile = open(settings.GROUP_ALIASES_PATH, "w")
    vfile = open(settings.GROUP_VIRTUAL_PATH, "w")

    afile.write(signature)
    vfile.write(signature)
    vfile.write("%s anything\n" % settings.GROUP_VIRTUAL_DOMAIN)

    wgs = Group.objects.filter(type='wg').all()

    # - status = Active
    active_wgs = wgs.filter(state__in=ACTIVE_STATES)

    # - activity within last year? (use concluded_date)
    inactive_recent_wgs = wgs.exclude(state__in=ACTIVE_STATES).filter(time__gte=show_since)
    interesting_wgs = active_wgs | inactive_recent_wgs

    for wg in interesting_wgs.distinct().iterator():
        name = wg.acronym
        dump_sublist(afile, vfile, name+'-ads',    settings.GROUP_VIRTUAL_DOMAIN, get_group_ads_emails(wg))
        dump_sublist(afile, vfile, name+'-chairs', settings.GROUP_VIRTUAL_DOMAIN, get_group_chairs_emails(wg))

    # - status = Active
    rgs = Group.objects.filter(type='rg').all()
    active_rgs = rgs.filter(state__in=ACTIVE_STATES)

    # - activity within last year? (use concluded_date)
    inactive_recent_rgs = rgs.exclude(state__in=ACTIVE_STATES).filter(time__gte=show_since)
    interesting_rgs = active_rgs | inactive_recent_rgs

    for rg in interesting_rgs.distinct().iterator():
        name = rg.acronym
        #dump_sublist('%s%s' % (name, '-ads'), get_group_ads_emails, rg, True)
        dump_sublist(afile, vfile, name+'-chairs', settings.GROUP_VIRTUAL_DOMAIN, get_group_chairs_emails(rg))

    # Additionally, for areaz, we should list -ads and -chairs
    # (for every chair in active groups within the area).
    areas = Group.objects.filter(type='area').all()
    active_areas = areas.filter(state__in=ACTIVE_STATES)
    for area in active_areas:
        name = area.acronym
        dump_sublist(afile, vfile, name+'-ads'   , settings.GROUP_VIRTUAL_DOMAIN, get_area_ads_emails(area))
        dump_sublist(afile, vfile, name+'-chairs', settings.GROUP_VIRTUAL_DOMAIN, get_area_chairs_emails(area)+get_area_ads_emails(area))