# -*- coding: utf-8 -*- #
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#
# 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
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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"""Command to import rules in a conversion workspaces for a database migration from config files."""

import argparse

from googlecloudsdk.api_lib.database_migration import resource_args
from googlecloudsdk.calliope import base
from googlecloudsdk.command_lib.database_migration.conversion_workspaces import command_mixin
from googlecloudsdk.command_lib.database_migration.conversion_workspaces import flags as cw_flags
from googlecloudsdk.core import log


@base.RegionalEndpointsSupported
@base.ReleaseTracks(base.ReleaseTrack.GA)
@base.DefaultUniverseOnly
class ImportRules(command_mixin.ConversionWorkspacesCommandMixin, base.Command):
  """Import mapping rules in a Database Migration Service conversion workspace."""

  detailed_help = {
      'DESCRIPTION': """
        Import mapping rules in a Database Migration Service conversion
        workspace from a configuration file. For example, for Oracle to
        PostgreSQL migrations that could be an Ora2Pg config file.
      """,
      'EXAMPLES': """\
        To import rules in a conversion workspace:

            $ {command} my-conversion-workspace --region=us-central1
            --file-format=ORA2PG --config-files=PATH1/config1.conf,PATH2/config2.conf
        """,
  }

  @staticmethod
  def Args(parser: argparse.ArgumentParser) -> None:
    """Args is called by calliope to gather arguments for this command.

    Args:
      parser: An argparse parser that you can use to add arguments that go on
        the command line after this command. Positional arguments are allowed.
    """
    resource_args.AddConversionWorkspaceResourceArg(parser, 'to import rules')
    cw_flags.AddImportFileFormatFlag(parser)
    cw_flags.AddConfigFilesFlag(parser)
    cw_flags.AddAutoCommitFlag(parser)

  def Run(self, args: argparse.Namespace) -> None:
    """Import rules in a Database Migration Service conversion workspace.

    Args:
      args: argparse.Namespace, The arguments that this command was invoked
        with.
    """
    conversion_workspace_ref = args.CONCEPTS.conversion_workspace.Parse()
    client = self.GetClient(location=conversion_workspace_ref.locationsId)

    # Import mapping rules is a passthrough method and returns only done: true
    # along with the error (if any)
    result_operation = client.operations.ImportRules(
        name=conversion_workspace_ref.RelativeName(),
        config_files=args.config_files,
        file_format=args.file_format,
        auto_commit=args.auto_commit
        if args.auto_commit is not None
        else True,
    )

    if result_operation.error is not None:
      log.status.Print(
          'Imported mapping rules for conversion workspace'
          f' {conversion_workspace_ref.conversionWorkspacesId} failed with'
          f' error [{result_operation.error.message}]',
      )
    else:
      log.status.Print(
          'Imported mapping rules for conversion workspace'
          f' {conversion_workspace_ref.conversionWorkspacesId}',
      )
