#   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.
#

"""Identity v2 Service Catalog action implementations"""

import logging
import six

from cliff import lister
from cliff import show

from openstackclient.common import utils
from openstackclient.i18n import _  # noqa


def _format_endpoints(eps=None):
    if not eps:
        return ""
    for index, ep in enumerate(eps):
        ret = eps[index]['region'] + '\n'
        for url in ['publicURL', 'internalURL', 'adminURL']:
            ret += "  %s: %s\n" % (url, eps[index]['publicURL'])
    return ret


class ListCatalog(lister.Lister):
    """List services in the service catalog"""

    log = logging.getLogger(__name__ + '.ListCatalog')

    def take_action(self, parsed_args):
        self.log.debug('take_action(%s)', parsed_args)

        # This is ugly because if auth hasn't happened yet we need
        # to trigger it here.
        sc = self.app.client_manager.session.auth.get_auth_ref(
            self.app.client_manager.session,
        ).service_catalog

        data = sc.get_data()
        columns = ('Name', 'Type', 'Endpoints')
        return (columns,
                (utils.get_dict_properties(
                    s, columns,
                    formatters={
                        'Endpoints': _format_endpoints,
                    },
                ) for s in data))


class ShowCatalog(show.ShowOne):
    """Show service catalog details"""

    log = logging.getLogger(__name__ + '.ShowCatalog')

    def get_parser(self, prog_name):
        parser = super(ShowCatalog, self).get_parser(prog_name)
        parser.add_argument(
            'service',
            metavar='<service>',
            help=_('Service to display (type, name or ID)'),
        )
        return parser

    def take_action(self, parsed_args):
        self.log.debug('take_action(%s)', parsed_args)

        # This is ugly because if auth hasn't happened yet we need
        # to trigger it here.
        sc = self.app.client_manager.session.auth.get_auth_ref(
            self.app.client_manager.session,
        ).service_catalog

        data = None
        for service in sc.get_data():
            if (
                'name' in service and
                service['name'] != parsed_args.service and
                'type' in service and
                service['type'] != parsed_args.service
            ):
                    continue

            data = service
            data['endpoints'] = _format_endpoints(data['endpoints'])
            if 'endpoints_links' in data:
                data.pop('endpoints_links')

        return zip(*sorted(six.iteritems(data)))