# Copyright 2015 Google Inc. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Creates an VM instance template with the same defaults as vm_instance.py."""
import copy

import common
import default
import vm_instance

# Properties for this component, also look at the vm_instance properties
PROJECT = default.PROJECT


# The optional and mandatory fields are the same as a vm_instance
def GenerateComputeVMTemplate(context):
  """Generates one instanceTemplate resource."""
  prop = context.properties
  project = prop.setdefault(PROJECT, context.env[PROJECT])
  vm_tpl = vm_instance.GenerateComputeVM(context,
                                         create_disks_separately=False)[-1]
  # Copy properties since they will be modified to be used as subproperties
  vm_props = copy.deepcopy(vm_tpl['properties'])
  common.TakeZoneOut(vm_props)
  vm_name = vm_tpl['name'][:-3]  # takes the -vm out

  # pyformat: disable
  resource = [
      {
          'name': vm_name,
          'type': default.TEMPLATE,
          'properties': {
              'project': project,
              'properties': vm_props,
          }
      }
  ]
  # pyformat: enable
  return resource


def GenerateResourceList(context):
  """Returns list of resources generated by this module."""
  resources = GenerateComputeVMTemplate(context)
  resources += common.AddDiskResourcesIfNeeded(context)
  resources += vm_instance.AddServiceEndpointIfNeeded(context)
  return resources


@common.FormatErrorsDec
def GenerateConfig(context):
  """Generates YAML resource configuration."""
  return common.MakeResource(GenerateResourceList(context))