# Copyright (c) 2014-2016 Hewlett Packard Enterprise Development LP
#
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import argparse

from requestbuilder import Arg, MutuallyExclusiveArgList

from euca2ools.commands.argtypes import binary_tag_def, delimited_list
from euca2ools.commands.cloudformation import CloudFormationRequest
from euca2ools.commands.cloudformation.argtypes import parameter_list


class CreateStack(CloudFormationRequest):
    DESCRIPTION = 'Create a new stack'
    ARGS = [Arg('StackName', metavar='STACK',
                help='name of the new stack (required)'),
            MutuallyExclusiveArgList(
                Arg('--template-file', dest='TemplateBody', metavar='FILE',
                    type=open,
                    help="file containing the new stack's JSON template"),
                Arg('--template-url', dest='TemplateURL', metavar='URL',
                    help="URL pointing to the new stack's JSON template"))
            .required(),
            Arg('-d', '--disable-rollback', dest='DisableRollback',
                action='store_true', default=argparse.SUPPRESS,
                help='disable rollback on failure'),
            Arg('-n', '--notification-arns', dest='NotificationARNs.member',
                metavar='ARN[,...]', type=delimited_list(','), action='append',
                help='''SNS ARNs to publish stack actions to'''),
            Arg('--capabilities', dest='Capabilities.member',
                metavar='CAP[,...]', type=delimited_list(','),
                help='capabilities needed to create the stack'),
            Arg('-p', '--parameter', dest='param_sets', route_to=None,
                metavar='KEY=VALUE', type=parameter_list, action='append',
                help='''key and value of the parameters to use with the new
                stack's template, separated by an "=" character'''),
            Arg('-t', '--timeout', dest='TimeoutInMinutes', type=int,
                metavar='MINUTES', help='timeout for stack creation'),
            Arg('--tag', dest='Tags.member', metavar='KEY[=VALUE]',
                type=binary_tag_def, action='append',
                help='''key and optional value of the tag to create, separated
                by an "=" character.  If no value is given the tag's value is
                set to an empty string.''')]

    def configure(self):
        CloudFormationRequest.configure(self)
        stack_params = sum(self.args.get('param_sets') or [], [])
        self.params['Parameters.member'] = stack_params

    # pylint: disable=no-self-use
    def print_result(self, result):
        print result.get('StackId')
    # pylint: enable=no-self-use