list_members

#!/usr/bin/env python

import argparse
import sys
import time
import traceback

from solawi.mailinglists import (MAPPING, members_url)
from solawi.nextcloud import get_group_emails
from solawi.snapshots import (read_snapshot, save_snapshot)


def print_all():
    for groupname in MAPPING:
        print('---', groupname.upper())
        users = get_group_emails(groupname)
        print('\n'.join(a['mail'] for a in users))


def save():
    timestamp = time.time()
    users = read_snapshot()
    for groupname in MAPPING:
        if not groupname in users:
            users[groupname] = []
        old_users = users[groupname]
        new_users = get_group_emails(
            groupname, skip_these_users=old_users)
        for new_user in new_users:
            users[groupname] += [{
                'id': new_user['id'],
                'mail': new_user['mail'],
                'ts': timestamp
            }]
        if new_users:
            print('---', groupname.upper())
            print('\n'.join(a['mail'] for a in new_users))
            if MAPPING[groupname]:
                print('''---
Please update here: {}'''.format(members_url(MAPPING[groupname]))) 
    save_snapshot(users)


def main():
    parser = argparse.ArgumentParser(description='List current members.')
    parser.add_argument('--save',
                        action='store_true',
                        help='Save current snapshot of members. List new entries.')
    args = parser.parse_args()

    if args.save:
        save()
        sys.exit(0)
    print_all()

if __name__ == "__main__":
    try:
        main()
    except Exception as e:
        traceback.print_exc()
        sys.exit(1)