# -*- coding: utf-8 -*- #
# Copyright 2020 Google LLC. 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.
"""Utilities for validating parameters."""

from __future__ import absolute_import
from __future__ import division
from __future__ import unicode_literals

from googlecloudsdk.calliope import exceptions


def ValidateWorkerPoolSpec(worker_pool_spec):
  """Validates the input worker-pool-specs."""
  for spec in worker_pool_spec:
    use_python_package = spec.pythonPackageSpec and (
        spec.pythonPackageSpec.executorImageUri or
        spec.pythonPackageSpec.pythonModule)
    use_container = spec.containerSpec and spec.containerSpec.imageUri

    if (use_container and use_python_package) or (not use_container and
                                                  not use_python_package):
      raise exceptions.InvalidArgumentException(
          '--worker-pool-spec',
          'Either container or python package must be set.')


def ValidateDisplayName(display_name):
  """Validates the display name."""
  if display_name is not None and not display_name:
    raise exceptions.InvalidArgumentException(
        '--display-name',
        'Display name can not be empty.')