#   Copyright 2012-2013 OpenStack Foundation
#
#   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 Project action implementations"""

import logging
import six

from cliff import command
from cliff import lister
from cliff import show

from openstackclient.common import parseractions
from openstackclient.common import utils


class CreateProject(show.ShowOne):
    """Create new project"""

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

    def get_parser(self, prog_name):
        parser = super(CreateProject, self).get_parser(prog_name)
        parser.add_argument(
            'name',
            metavar='<project-name>',
            help='New project name',
        )
        parser.add_argument(
            '--description',
            metavar='<project-description>',
            help='New project description',
        )
        enable_group = parser.add_mutually_exclusive_group()
        enable_group.add_argument(
            '--enable',
            action='store_true',
            help='Enable project (default)',
        )
        enable_group.add_argument(
            '--disable',
            action='store_true',
            help='Disable project',
        )
        parser.add_argument(
            '--property',
            metavar='<key=value>',
            action=parseractions.KeyValueAction,
            help='Property to add for this project '
                 '(repeat option to set multiple properties)',
        )
        return parser

    def take_action(self, parsed_args):
        self.log.debug('take_action(%s)', parsed_args)
        identity_client = self.app.client_manager.identity

        enabled = True
        if parsed_args.disable:
            enabled = False
        kwargs = {}
        if parsed_args.property:
            kwargs = parsed_args.property.copy()

        project = identity_client.tenants.create(
            parsed_args.name,
            description=parsed_args.description,
            enabled=enabled,
            **kwargs
        )

        info = {}
        info.update(project._info)
        return zip(*sorted(six.iteritems(info)))


class DeleteProject(command.Command):
    """Delete project"""

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

    def get_parser(self, prog_name):
        parser = super(DeleteProject, self).get_parser(prog_name)
        parser.add_argument(
            'project',
            metavar='<project>',
            help='Project to delete (name or ID)',
        )
        return parser

    def take_action(self, parsed_args):
        self.log.debug('take_action(%s)', parsed_args)
        identity_client = self.app.client_manager.identity

        project = utils.find_resource(
            identity_client.tenants,
            parsed_args.project,
        )

        identity_client.tenants.delete(project.id)
        return


class ListProject(lister.Lister):
    """List projects"""

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

    def get_parser(self, prog_name):
        parser = super(ListProject, self).get_parser(prog_name)
        parser.add_argument(
            '--long',
            action='store_true',
            default=False,
            help='List additional fields in output',
        )
        return parser

    def take_action(self, parsed_args):
        self.log.debug('take_action(%s)', parsed_args)
        if parsed_args.long:
            columns = ('ID', 'Name', 'Description', 'Enabled')
        else:
            columns = ('ID', 'Name')
        data = self.app.client_manager.identity.tenants.list()
        return (columns,
                (utils.get_item_properties(
                    s, columns,
                    formatters={},
                ) for s in data))


class SetProject(command.Command):
    """Set project properties"""

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

    def get_parser(self, prog_name):
        parser = super(SetProject, self).get_parser(prog_name)
        parser.add_argument(
            'project',
            metavar='<project>',
            help='Project to change (name or ID)',
        )
        parser.add_argument(
            '--name',
            metavar='<new-project-name>',
            help='New project name',
        )
        parser.add_argument(
            '--description',
            metavar='<project-description>',
            help='New project description',
        )
        enable_group = parser.add_mutually_exclusive_group()
        enable_group.add_argument(
            '--enable',
            action='store_true',
            help='Enable project',
        )
        enable_group.add_argument(
            '--disable',
            action='store_true',
            help='Disable project',
        )
        parser.add_argument(
            '--property',
            metavar='<key=value>',
            action=parseractions.KeyValueAction,
            help='Property to add for this project '
                 '(repeat option to set multiple properties)',
        )
        return parser

    def take_action(self, parsed_args):
        self.log.debug('take_action(%s)', parsed_args)
        identity_client = self.app.client_manager.identity

        if (not parsed_args.name
                and not parsed_args.description
                and not parsed_args.enable
                and not parsed_args.property
                and not parsed_args.disable):
            return

        project = utils.find_resource(
            identity_client.tenants,
            parsed_args.project,
        )

        kwargs = project._info
        if parsed_args.name:
            kwargs['name'] = parsed_args.name
        if parsed_args.description:
            kwargs['description'] = parsed_args.description
        if parsed_args.enable:
            kwargs['enabled'] = True
        if parsed_args.disable:
            kwargs['enabled'] = False
        if parsed_args.property:
            kwargs.update(parsed_args.property)
        if 'id' in kwargs:
            del kwargs['id']
        if 'name' in kwargs:
            # Hack around broken Identity API arg names
            kwargs['tenant_name'] = kwargs['name']
            del kwargs['name']

        identity_client.tenants.update(project.id, **kwargs)
        return


class ShowProject(show.ShowOne):
    """Show project details"""

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

    def get_parser(self, prog_name):
        parser = super(ShowProject, self).get_parser(prog_name)
        parser.add_argument(
            'project',
            metavar='<project>',
            help='Project to display (name or ID)')
        return parser

    def take_action(self, parsed_args):
        self.log.debug('take_action(%s)', parsed_args)
        identity_client = self.app.client_manager.identity
        project = utils.find_resource(
            identity_client.tenants,
            parsed_args.project,
        )

        info = {}
        info.update(project._info)
        return zip(*sorted(six.iteritems(info)))