# -*- 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.
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"""Command to convert conversion workspaces for a database migration."""

import argparse

from googlecloudsdk.api_lib.database_migration import resource_args
from googlecloudsdk.api_lib.database_migration.conversion_workspaces.app_code_conversion import application_code_converter
from googlecloudsdk.api_lib.database_migration.conversion_workspaces.app_code_conversion import conversion_params
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.command_lib.util.concepts import concept_parsers


@base.Hidden
@base.ReleaseTracks(base.ReleaseTrack.GA)
@base.DefaultUniverseOnly
class ConvertApplicationCode(
    command_mixin.ConversionWorkspacesCommandMixin,
    base.Command,
):
  """Convert the application code."""

  detailed_help = {
      'DESCRIPTION': """
        Convert the provided source code from accessing the source database to
        accessing the destination database.
      """,
      'EXAMPLES': """\
        To convert the application code:

            $ {command} --source-file=Path/to/source --region=us-central1
      """,
  }

  @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.
    """
    concept_parsers.ConceptParser.ForResource(
        '--region',
        resource_args.GetRegionResourceSpec(),
        group_help='The location of the resource.',
        required=True,
    ).AddToParser(parser)
    cw_flags.AddSourceDialectFlag(parser)
    cw_flags.AddTargetDialectFlag(parser)
    cw_flags.AddSourceDetailsFlag(parser)
    cw_flags.AddTargetPathFlag(parser)

  def Run(self, args: argparse.Namespace):
    """Convert the application code.

    Args:
      args: argparse.Namespace, The arguments that this command was invoked
        with.
    """
    params = conversion_params.ApplicationCodeConversionParams(
        name=args.CONCEPTS.region.Parse().RelativeName(),
        source_dialect=args.source_dialect,
        target_dialect=args.target_dialect,
        source_folder=args.source_folder,
        target_path=args.target_path,
        source_file=args.source_file,
    )
    converter = application_code_converter.ApplicationCodeConverter(
        params=params,
        ai_client=self.client.ai,
    )
    converter.Convert()