# Copyright 2009-2013 Eucalyptus Systems, Inc.
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from euca2ools.commands.argtypes import ternary_tag_def
from euca2ools.commands.ec2 import EC2Request
from requestbuilder import Arg


class DeleteTags(EC2Request):
    DESCRIPTION = 'Delete tags from one or more resources'
    ARGS = [Arg('ResourceId', metavar='RESOURCE', nargs='+', help='''ID(s) of
                the resource(s) to un-tag (at least 1 required)'''),
            Arg('--tag', dest='Tag', metavar='KEY[=[VALUE]]',
                type=ternary_tag_def, action='append', required=True,
                help='''key and optional value of the tag to delete, separated
                by an "=" character.  If you specify a value then the tag is
                deleted only if its value matches the one you specified.  If
                you specify the empty string as the value (e.g. "--tag foo=")
                then the tag is deleted only if its value is the empty
                string.  If you do not specify a value (e.g. "--tag foo") then
                the tag is deleted regardless of its value. (at least 1
                required)''')]