#   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.
#

import logging

from osc_lib.command import command
from osc_lib import exceptions
from osc_lib import utils

from openstackclient.i18n import _
from openstackclient.identity import common as identity_common
from openstackclient.network import sdk_utils


LOG = logging.getLogger(__name__)


def _get_columns(item):
    column_map = {
        'is_enabled': 'enabled',
        'tenant_id': 'project_id',
    }

    return sdk_utils.get_osc_show_columns_for_sdk_resource(item, column_map)


def _get_attrs(client_manager, parsed_args):
    attrs = {}
    if parsed_args.description is not None:
        attrs['description'] = parsed_args.description
    if parsed_args.driver is not None:
        attrs['driver'] = parsed_args.driver
    if parsed_args.metainfo is not None:
        attrs['metainfo'] = parsed_args.metainfo
    if parsed_args.enable:
        attrs['enabled'] = True
    if parsed_args.disable:
        attrs['enabled'] = False
    if 'project' in parsed_args and parsed_args.project is not None:
        identity_client = client_manager.identity
        project_id = identity_common.find_project(
            identity_client,
            parsed_args.project,
            parsed_args.project_domain,
        ).id
        attrs['tenant_id'] = project_id

    return attrs


# TODO(ndahiwade): Use the SDK resource mapped attribute names once the
# OSC minimum requirements include SDK 1.0.
class CreateNetworkFlavorProfile(command.ShowOne):
    _description = _("Create new network flavor profile")

    def get_parser(self, prog_name):
        parser = super(CreateNetworkFlavorProfile, self).get_parser(prog_name)
        parser.add_argument(
            '--project',
            metavar="<project>",
            help=_("Owner's project (name or ID)")
        )
        identity_common.add_project_domain_option_to_parser(parser)
        parser.add_argument(
            '--description',
            metavar="<description>",
            help=_("Description for the flavor profile")
        )
        enable_group = parser.add_mutually_exclusive_group()
        enable_group.add_argument(
            '--enable',
            action='store_true',
            help=_("Enable the flavor profile")
        )
        enable_group.add_argument(
            '--disable',
            action='store_true',
            help=_("Disable the flavor profile")
        )
        parser.add_argument(
            '--driver',
            help=_("Python module path to driver. This becomes "
                   "required if --metainfo is missing and vice versa")
        )
        parser.add_argument(
            '--metainfo',
            help=_("Metainfo for the flavor profile. This becomes "
                   "required if --driver is missing and vice versa")
        )

        return parser

    def take_action(self, parsed_args):
        client = self.app.client_manager.network
        attrs = _get_attrs(self.app.client_manager, parsed_args)

        if parsed_args.driver is None and parsed_args.metainfo is None:
            msg = _("Either --driver or --metainfo or both are required")
            raise exceptions.CommandError(msg)

        obj = client.create_service_profile(**attrs)
        display_columns, columns = _get_columns(obj)
        data = utils.get_item_properties(obj, columns, formatters={})

        return (display_columns, data)


class DeleteNetworkFlavorProfile(command.Command):
    _description = _("Delete network flavor profile")

    def get_parser(self, prog_name):
        parser = super(DeleteNetworkFlavorProfile, self).get_parser(prog_name)

        parser.add_argument(
            'flavor_profile',
            metavar='<flavor-profile>',
            nargs='+',
            help=_("Flavor profile(s) to delete (ID only)")
        )
        return parser

    def take_action(self, parsed_args):
        client = self.app.client_manager.network
        result = 0

        for flavor_profile in parsed_args.flavor_profile:
            try:
                obj = client.find_service_profile(flavor_profile,
                                                  ignore_missing=False)
                client.delete_service_profile(obj)
            except Exception as e:
                result += 1
                LOG.error(_("Failed to delete flavor profile with "
                            "ID '%(flavor_profile)s': %(e)s"),
                          {"flavor_profile": flavor_profile, "e": e})
        if result > 0:
            total = len(parsed_args.flavor_profile)
            msg = (_("%(result)s of %(total)s flavor_profiles failed "
                   "to delete.") % {"result": result, "total": total})
            raise exceptions.CommandError(msg)


class ListNetworkFlavorProfile(command.Lister):
    _description = _("List network flavor profile(s)")

    def take_action(self, parsed_args):
        client = self.app.client_manager.network

        columns = (
            'id',
            'driver',
            'is_enabled',
            'metainfo',
            'description',
        )
        column_headers = (
            'ID',
            'Driver',
            'Enabled',
            'Metainfo',
            'Description',
        )

        data = client.service_profiles()
        return (column_headers,
                (utils.get_item_properties(
                    s, columns,
                ) for s in data))


# TODO(ndahiwade): Use the SDK resource mapped attribute names once the
# OSC minimum requirements include SDK 1.0.
class SetNetworkFlavorProfile(command.Command):
    _description = _("Set network flavor profile properties")

    def get_parser(self, prog_name):
        parser = super(SetNetworkFlavorProfile, self).get_parser(prog_name)
        parser.add_argument(
            'flavor_profile',
            metavar="<flavor-profile>",
            help=_("Flavor profile to update (ID only)")
        )
        identity_common.add_project_domain_option_to_parser(parser)
        parser.add_argument(
            '--description',
            metavar="<description>",
            help=_("Description for the flavor profile")
        )
        enable_group = parser.add_mutually_exclusive_group()
        enable_group.add_argument(
            '--enable',
            action='store_true',
            help=_("Enable the flavor profile")
        )
        enable_group.add_argument(
            '--disable',
            action='store_true',
            help=_("Disable the flavor profile")
        )
        parser.add_argument(
            '--driver',
            help=_("Python module path to driver. This becomes "
                   "required if --metainfo is missing and vice versa")
        )
        parser.add_argument(
            '--metainfo',
            help=_("Metainfo for the flavor profile. This becomes "
                   "required if --driver is missing and vice versa")
        )

        return parser

    def take_action(self, parsed_args):
        client = self.app.client_manager.network
        obj = client.find_service_profile(parsed_args.flavor_profile,
                                          ignore_missing=False)
        attrs = _get_attrs(self.app.client_manager, parsed_args)

        client.update_service_profile(obj, **attrs)


class ShowNetworkFlavorProfile(command.ShowOne):
    _description = _("Display network flavor profile details")

    def get_parser(self, prog_name):
        parser = super(ShowNetworkFlavorProfile, self).get_parser(prog_name)
        parser.add_argument(
            'flavor_profile',
            metavar='<flavor-profile>',
            help=_("Flavor profile to display (ID only)")
        )
        return parser

    def take_action(self, parsed_args):
        client = self.app.client_manager.network
        obj = client.find_service_profile(parsed_args.flavor_profile,
                                          ignore_missing=False)
        display_columns, columns = _get_columns(obj)
        data = utils.get_item_properties(obj, columns)
        return (display_columns, data)
