from __future__ import unicode_literals

from django.conf import settings
from django.contrib.auth import get_user_model
from django.core.management.base import CommandError, BaseCommand

from misago.core.pgutils import chunk_queryset

from misago.users.permissions import can_delete_own_account


UserModel = get_user_model()


class Command(BaseCommand):
    help = (
        "Deletes accounts of users that have requested it. "
        "Leaves their content behind, but anonymises it."
    )

    def handle(self, *args, **options):
        if not settings.MISAGO_ENABLE_DELETE_OWN_ACCOUNT:
            self.stdout.write("Delete own account option is currently disabled.")

        deleted = 0

        queryset = UserModel.objects.filter(delete_own_account=True)

        for user in chunk_queryset(queryset):
            if can_delete_own_account(user, user):
                user.delete()
                deleted += 1

        self.stdout.write("Deleted users: {}".format(deleted))