from optparse import make_option
from django.core.management.base import BaseCommand, CommandError
from django.contrib.auth.models import User

from hub.models import ExtraUserDetail
from kpi.deployment_backends.kc_reader.utils import get_kc_profile_data

class Command(BaseCommand):
    option_list = BaseCommand.option_list + (
        make_option('--all-users',
                    action='store_true',
                    dest='all_users',
                    default=False,
                    help="Copy all users' profiles"),
        make_option('--username',
                    action='store',
                    dest='username',
                    default=False,
                    help="Copy only a specific user's profiles"),
        make_option('--again',
                    action='store_true',
                    dest='again',
                    default=False,
                    help='Usually, a KC profile is copied only once per user, '
                         'making it possible for the user to blank out a '
                         'field without having the old value from KC '
                         'reappear. To copy previously copied profiles again, '
                         'use this option'
                    ),
    )

    def handle(self, *args, **options):
        if options.get('all_users'):
            users = User.objects.all()
        elif options.get('username'):
            users = User.objects.filter(username=options.get('username'))
        else:
            raise CommandError('No users selected!')
        initial_count = users.count()
        if not options.get('again'):
            # Poor man's query within JSONField that saves a little time. We'll
            # check `copied_kc_profile` again after parsing the JSON
            users = users.exclude(
                extra_details__data__contains='"copied_kc_profile":true')
        copied_count = 0
        for user in users:
            extra_details, created = ExtraUserDetail.objects.get_or_create(
                user=user)
            if not extra_details.data.get('copied_kc_profile', False) or \
                    options.get('again'):
                kc_detail = get_kc_profile_data(user.pk)
                for k, v in kc_detail.iteritems():
                    if extra_details.data.get(k, None) is None:
                        extra_details.data[k] = v
                        extra_details.data['copied_kc_profile'] = True
                copied_count += 1
                extra_details.save()
        self.stdout.write('Copied {} profile{}.'.format(
            copied_count, '' if copied_count == 1 else 's'))
        skipped_count = initial_count - copied_count
        if skipped_count:
            self.stdout.write('Skipped {} profile{}.'.format(
                skipped_count, '' if skipped_count == 1 else 's'))

Include management command missing from a080693