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

from euca2ools.commands.iam import IAMRequest, AS_ACCOUNT, arg_user


class ListMFADevices(IAMRequest):
    DESCRIPTION = "List a user's MFA devices"
    ARGS = [arg_user(nargs='?', help='''user to list MFA devices for
                     (default: current user)'''),
            AS_ACCOUNT]
    LIST_TAGS = ['MFADevices']

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

    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):
        for device in result.get('MFADevices', []):
            print device['SerialNumber']
    # pylint: enable=no-self-use