#    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.

"""Database v1 Clusters action implementations"""

from osc_lib.command import command
from osc_lib import utils
import six

from troveclient.i18n import _


def set_attributes_for_print_detail(cluster):
    info = cluster._info.copy()
    if hasattr(cluster, 'datastore'):
        info['datastore'] = cluster.datastore['type']
        info['datastore_version'] = cluster.datastore['version']
    if hasattr(cluster, 'task'):
        info['task_description'] = cluster.task['description']
        info['task_name'] = cluster.task['name']
    info.pop('task', None)
    if hasattr(cluster, 'ip'):
        info['ip'] = ', '.join(cluster.ip)
    instances = info.pop('instances', None)
    if instances:
        info['instance_count'] = len(instances)
    info.pop('links', None)
    return info


class ListDatabaseClusters(command.Lister):

    _description = _("List database clusters")
    columns = ['ID', 'Name', 'Datastore', 'Datastore Version',
               'Task Name']

    def get_parser(self, prog_name):
        parser = super(ListDatabaseClusters, self).get_parser(prog_name)
        parser.add_argument(
            '--limit',
            dest='limit',
            metavar='<limit>',
            type=int,
            default=None,
            help=_('Limit the number of results displayed.')
        )
        parser.add_argument(
            '--marker',
            dest='marker',
            metavar='<ID>',
            type=str,
            default=None,
            help=_('Begin displaying the results for IDs greater than the'
                   ' specified marker. When used with :option:`--limit,` set'
                   ' this to the last ID displayed in the previous run.')
        )
        return parser

    def take_action(self, parsed_args):
        database_clusters = self.app.client_manager.database.clusters
        clusters = database_clusters.list(limit=parsed_args.limit,
                                          marker=parsed_args.marker)
        for cluster in clusters:
            setattr(cluster, 'datastore_version',
                    cluster.datastore['version'])
            setattr(cluster, 'datastore', cluster.datastore['type'])
            setattr(cluster, 'task_name', cluster.task['name'])

        clusters = [utils.get_item_properties(c, self.columns)
                    for c in clusters]
        return self.columns, clusters


class ShowDatabaseCluster(command.ShowOne):
    _description = _("Shows details of a database cluster")

    def get_parser(self, prog_name):
        parser = super(ShowDatabaseCluster, self).get_parser(prog_name)
        parser.add_argument(
            'cluster',
            metavar='<cluster>',
            help=_('ID or name of the cluster'),
        )
        return parser

    def take_action(self, parsed_args):
        database_clusters = self.app.client_manager.database.clusters
        cluster = utils.find_resource(database_clusters, parsed_args.cluster)
        cluster = set_attributes_for_print_detail(cluster)
        return zip(*sorted(six.iteritems(cluster)))