# Copyright 2013 Eucalyptus Systems, Inc.
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from euca2ools.commands.argtypes import delimited_list
from euca2ools.commands.elasticloadbalancing import ELBRequest
from requestbuilder import Arg
from requestbuilder.mixins import TabifyingMixin


class AttachLoadBalancerToSubnets(ELBRequest, TabifyingMixin):
    DESCRIPTION = '[VPC only] Add a load balancer to one or more subnets'
    ARGS = [Arg('LoadBalancerName', metavar='ELB',
                help='name of the load balancer to modify (required)'),
            Arg('-s', '--subnets', dest='Subnets.member', required=True,
                metavar='SUBNET1,SUBNET2,...', type=delimited_list(','),
                help='''IDs of the subnets to add the load balancer to
                (required)''')]
    LIST_TAGS = ['Subnets']

    def print_result(self, result):
        print self.tabify(('SUBNETS', ', '.join(result.get('Subnets', []))))