# Copyright (c) 2009-2016 Hewlett Packard Enterprise Development LP
#
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from requestbuilder import Arg
from requestbuilder.response import PaginatedResponse

from euca2ools.commands.iam import IAMRequest, AS_ACCOUNT


class ListGroups(IAMRequest):
    DESCRIPTION = "List your account's groups"
    ARGS = [Arg('-p', '--path-prefix', dest='PathPrefix', metavar='PATH',
                help='limit results to groups that begin with a given path'),
            AS_ACCOUNT]
    LIST_TAGS = ['Groups']

    def main(self):
        return PaginatedResponse(self, (None,), ('Groups',))

    def prepare_for_page(self, page):
        # Pages are defined by markers
        self.params['Marker'] = page

    # pylint: disable=no-self-use
    def get_next_page(self, response):
        if response.get('IsTruncated') == 'true':
            return response['Marker']
    # pylint: enable=no-self-use

    # pylint: disable=no-self-use
    def print_result(self, result):
        print 'groups'
        for group in result.get('Groups', []):
            print '  ', group['Arn']
    # pylint: enable=no-self-use