# -*- coding: utf-8 -*-
##############################################################################
#
# Copyright (c) 2010-2014 Vifib SARL and Contributors.
# All Rights Reserved.
#
# WARNING: This program as such is intended to be used by professional
# programmers who take the whole responsibility of assessing all potential
# consequences resulting from its eventual inadequacies and bugs
# End users who are looking for a ready-to-use solution with commercial
# guarantees and support are strongly adviced to contract a Free Software
# Service Company
#
# This program is Free Software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public License
# as published by the Free Software Foundation; either version 2.1
# of the License, or (at your option) any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
#
##############################################################################

from slapos.cli.config import ClientConfigCommand
from slapos.client import init, ClientConfig


class RemoveCommand(ClientConfigCommand):
    """
    remove a Software from a node
    """

    def get_parser(self, prog_name):
        ap = super(RemoveCommand, self).get_parser(prog_name)

        ap.add_argument('software_url',
                        help='Your software url')

        ap.add_argument('node',
                        help="Target node")

        return ap

    def take_action(self, args):
        configp = self.fetch_config(args)
        conf = ClientConfig(args, configp)
        local = init(conf, self.app.log)
        do_remove(self.app.log, args.software_url, args.node, local)


def do_remove(logger, software_url, compute_node_id, local):
    """
    Request deletion of Software Release
    'software_url' from compute_node 'compute_node_id'.
    """
    logger.info('Requesting deletion of %s Software Release...', software_url)

    if software_url in local:
        software_url = local[software_url]
    local['slap'].registerSupply().supply(
        software_release=software_url,
        compute_node_guid=compute_node_id,
        state='destroyed'
    )
    logger.info('Done.')
