# vim: tabstop=4 shiftwidth=4 softtabstop=4

# Copyright 2013 OpenStack Foundation
# Copyright 2013 Hewlett-Packard Development Company, L.P.
#
#    Licensed under the Apache License, Version 2.0 (the "License"); you may
#    not use this file except in compliance with the License. You may obtain
#    a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
#    License for the specific language governing permissions and limitations
#    under the License.

from trove.common import wsgi
from trove.backup import views
from trove.backup.models import Backup
from trove.common import cfg
from trove.openstack.common import log as logging
from trove.openstack.common.gettextutils import _
import trove.common.apischema as apischema

CONF = cfg.CONF
LOG = logging.getLogger(__name__)


class BackupController(wsgi.Controller):
    """
    Controller for accessing backups in the OpenStack API.
    """
    schemas = apischema.backup

    def index(self, req, tenant_id):
        """
        Return all backups information for a tenant ID.
        """
        LOG.debug("Listing Backups for tenant '%s'" % tenant_id)
        context = req.environ[wsgi.CONTEXT_KEY]
        backups = Backup.list(context)
        return wsgi.Result(views.BackupViews(backups).data(), 200)

    def show(self, req, tenant_id, id):
        """Return a single backup."""
        LOG.info(_("Showing a backup for tenant '%s'") % tenant_id)
        LOG.info(_("id : '%s'\n\n") % id)
        context = req.environ[wsgi.CONTEXT_KEY]
        backup = Backup.get_by_id(context, id)
        return wsgi.Result(views.BackupView(backup).data(), 200)

    def create(self, req, body, tenant_id):
        LOG.debug("Creating a Backup for tenant '%s'" % tenant_id)
        context = req.environ[wsgi.CONTEXT_KEY]
        data = body['backup']
        instance = data['instance']
        name = data['name']
        desc = data.get('description')
        backup = Backup.create(context, instance, name, desc)
        return wsgi.Result(views.BackupView(backup).data(), 202)

    def delete(self, req, tenant_id, id):
        LOG.debug("Delete Backup for tenant: %s, ID: %s" % (tenant_id, id))
        context = req.environ[wsgi.CONTEXT_KEY]
        Backup.delete(context, id)
        return wsgi.Result(None, 202)