# This file is part of Booktype.
# Copyright (c) 2012 Aleksandar Erkalovic <aleksandar.erkalovic@sourcefabric.org>
#
# Booktype is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Booktype is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with Booktype.  If not, see <http://www.gnu.org/licenses/>.

from django.core.management.base import BaseCommand, CommandError
from optparse import make_option

from django.conf import settings

from booktype.utils import config

class Command(BaseCommand):
    args = "<key>"
    help = "Delete configuration variable."
    requires_model_validation = False

    def handle(self, *args, **options):
        if not hasattr(settings, 'BOOKTYPE_CONFIG'):
            raise CommandError('Does not have BOOKTYPE_CONFIG in settings.py file.')

        if len(args) != 1:
            raise CommandError("You must specify variable name")

        if not settings.BOOKTYPE_CONFIG.has_key(args[0]):
            raise CommandError("There is no such variable.")

        del settings.BOOKTYPE_CONFIG[args[0]]

        config.save_configuration()