import sys
from getpass import getpass

import requests


host, user = sys.argv[1:]
password = getpass('Password: ')

session = requests.Session()
session.auth = (user, password)
count = 0

res = session.get(host + '/api/users')
res.raise_for_status()

for user in res.json():
    login = user['login']
    if '@' in login:
        login = login[:login.index('@')]
        res = session.put('%s/api/users/%d' % (host, user['id']),
                          {'login': login})

        if res.ok:
            print('Migrated %s -> %s' % (user['login'], login))
            count += 1

        res.raise_for_status()

print('%d users migrated' % count)