# -*- coding: utf-8 -*- #
# Copyright 2025 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.
"""Create a Cloud Run instance."""


from googlecloudsdk.calliope import base
from googlecloudsdk.calliope import exceptions as c_exceptions
from googlecloudsdk.calliope import parser_errors as c_parser_errors
from googlecloudsdk.command_lib.run import config_changes
from googlecloudsdk.command_lib.run import connection_context
from googlecloudsdk.command_lib.run import container_parser
from googlecloudsdk.command_lib.run import exceptions
from googlecloudsdk.command_lib.run import flags
from googlecloudsdk.command_lib.run import messages_util
from googlecloudsdk.command_lib.run import pretty_print
from googlecloudsdk.command_lib.run import resource_args
from googlecloudsdk.command_lib.run import serverless_operations
from googlecloudsdk.command_lib.run import stages
from googlecloudsdk.command_lib.util.concepts import concept_parsers
from googlecloudsdk.command_lib.util.concepts import presentation_specs
from googlecloudsdk.core import properties
from googlecloudsdk.core import resources
from googlecloudsdk.core.console import progress_tracker


EXAMPLE_INSTANCE_IMAGE = 'us-docker.pkg.dev/cloudrun/container/hello:latest'


def ContainerArgGroup(release_track=base.ReleaseTrack.ALPHA):
  """Returns an argument group with all per-container deploy args."""

  help_text = """
Container Flags

  If the --container is specified the following arguments may only be specified after a --container flag.
"""
  group = base.ArgumentGroup(help=help_text)
  # Verify image flag is specified in Run function for better error message.
  group.AddArgument(
      flags.ImageArg(image=EXAMPLE_INSTANCE_IMAGE, required=False)
  )
  group.AddArgument(flags.PortArg())
  group.AddArgument(flags.MutexEnvVarsFlags(release_track=release_track))
  group.AddArgument(flags.MemoryFlag())
  group.AddArgument(flags.CpuFlag())
  group.AddArgument(flags.GpuFlag())
  group.AddArgument(flags.ArgsFlag())
  group.AddArgument(flags.SecretsFlags())
  group.AddArgument(flags.CommandFlag())
  group.AddArgument(flags.DependsOnFlag())
  group.AddArgument(flags.AddVolumeMountFlag())
  group.AddArgument(flags.RemoveVolumeMountFlag())
  group.AddArgument(flags.ClearVolumeMountsFlag())
  group.AddArgument(flags.StartupProbeFlag())

  return group


@base.UniverseCompatible
@base.ReleaseTracks(base.ReleaseTrack.ALPHA)
class Create(base.Command):
  """Create a Cloud Run instance."""

  detailed_help = {
      'DESCRIPTION': (
          """\
          Creates a new Cloud Run instance.
          """
      ),
      'EXAMPLES': (
          """\
          To create a new instance `my-instance` on Cloud Run:

              $ {command} my-instance --image=us-docker.pkg.dev/project/image

          You may also omit the instance name. Then a prompt will be displayed
          with a suggested default value:

              $ {command} --image=us-docker.pkg.dev/project/image
          """
      ),
  }

  @classmethod
  def CommonArgs(cls, parser):
    # Flags not specific to any platform
    instance_presentation = presentation_specs.ResourcePresentationSpec(
        'INSTANCE',
        resource_args.GetInstanceResourceSpec(),
        'Instance to create.',
        required=False,
        prefixes=False,
    )
    flags.AddLabelsFlag(parser)
    flags.AddServiceAccountFlag(parser)
    flags.AddSetCloudSQLFlag(parser)
    flags.AddVpcConnectorArg(parser)
    flags.AddVpcNetworkGroupFlagsForCreate(parser, resource_kind='job')
    flags.AddEgressSettingsFlag(parser)
    flags.AddClientNameAndVersionFlags(parser)
    flags.AddBinAuthzPolicyFlags(parser, with_clear=False)
    flags.AddBinAuthzBreakglassFlag(parser)
    flags.AddCmekKeyFlag(parser, with_clear=False)
    flags.AddSandboxArg(parser, hidden=True)
    flags.AddGeneralAnnotationFlags(parser)
    flags.AddVolumesFlags(parser, cls.ReleaseTrack())
    flags.AddGpuTypeFlag(parser)
    flags.GpuZonalRedundancyFlag(parser)
    flags.AddIngressFlag(parser)
    flags.AddInvokerIamCheckFlag(parser)
    flags.AddTimeoutFlag(parser)

    polling_group = parser.add_mutually_exclusive_group()
    flags.AddAsyncFlag(polling_group)

    concept_parsers.ConceptParser([instance_presentation]).AddToParser(parser)
    # No output by default, can be overridden by --format
    parser.display_info.AddFormat('none')

  @staticmethod
  def Args(parser):
    Create.CommonArgs(parser)
    container_args = ContainerArgGroup()
    container_parser.AddContainerFlags(parser, container_args)

  def Run(self, args):
    """Deploy an Instance to Cloud Run."""
    if flags.FlagIsExplicitlySet(args, 'containers'):
      containers = args.containers
      if len(containers) > 10:
        raise c_exceptions.InvalidArgumentException(
            '--container', 'Instances may include at most 10 containers'
        )
      needs_image = {
          name: container
          for name, container in containers.items()
          if not container.IsSpecified('image')
      }
      if needs_image:
        raise exceptions.RequiredImageArgumentException(needs_image)
    elif not flags.FlagIsExplicitlySet(args, 'image'):
      raise c_parser_errors.RequiredError(argument='--image')

    instance_ref = args.CONCEPTS.instance.Parse()

    instance_name = None
    if instance_ref:
      flags.ValidateResource(instance_ref)
      parent_ref = instance_ref.Parent()
      instance_name = instance_ref.Name()
    else:
      # instance_ref is None, name not provided. Build parent_ref manually.
      region = properties.VALUES.run.region.Get()
      if not region:
        raise exceptions.ConfigurationError(
            'The --region flag or run/region property must be set.'
        )
      project = properties.VALUES.core.project.Get(required=True)

      # Construct the parent reference (namespace)
      parent_ref = resources.REGISTRY.Create(
          'run.namespaces', namespacesId=project
      )

    conn_context = connection_context.GetConnectionContext(
        args, flags.Product.RUN, self.ReleaseTrack()
    )
    changes = flags.GetInstanceConfigurationChanges(
        args, release_track=self.ReleaseTrack()
    )
    changes.append(
        config_changes.SetLaunchStageAnnotationChange(self.ReleaseTrack())
    )

    messages_util.MaybeLogDefaultGpuTypeMessage(args, resource=None)
    with serverless_operations.Connect(conn_context) as operations:
      pretty_print.Info(
          messages_util.GetStartCreateInstanceMessage(
              conn_context, parent_ref, instance_name
          )
      )
      header_msg = 'Creating instance...'

      with progress_tracker.StagedProgressTracker(
          header_msg,
          stages.InstanceStages(),
          failure_message='Instance failed to deploy',
          suppress_output=args.async_,
      ) as tracker:
        instance = operations.CreateInstance(
            parent_ref,
            instance_name,
            changes,
            tracker,
            asyn=args.async_,
        )

      if args.async_:
        pretty_print.Success(
            'Instance [{{bold}}{instance}{{reset}}] is being created '
            'asynchronously.'.format(instance=instance.name)
        )
      else:
        pretty_print.Success(
            'Instance [{{bold}}{instance}{{reset}}] has successfully been'
            ' created.'.format(instance=instance.name)
        )

      return instance