#!/usr/bin/env vpython3
# Copyright 2020 The ChromiumOS Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Converts ConfigBundle json pb into json pb with int enums."""

import argparse
import sys

from google.protobuf import json_format

from chromiumos.config.payload import config_bundle_pb2
from chromiumos.config.prototype import prototype_config_bundle_pb2


def Main(input_config, output_config):  # pylint: disable=invalid-name
  """Converts ConfigBundle json pb into json pb with enums as ints.

  Args:
    input_config: path to input file to convert.
    output_config: path to write converted output file to.
  """
  config = config_bundle_pb2.ConfigBundle()
  try:
    with open(input_config, 'r', encoding='utf-8') as f:
      json_format.Parse(f.read(), config)
  except json_format.ParseError:
    config = prototype_config_bundle_pb2.PrototypeConfigBundle()
    with open(input_config, 'r', encoding='utf-8') as f:
      json_format.Parse(f.read(), config)

  json_output = json_format.MessageToJson(
      config, sort_keys=True, use_integers_for_enums=True)
  with open(output_config, 'w', encoding='utf-8') as f:
    print(json_output, file=f)


def main():
  """Main program which parses args and runs Main."""
  parser = argparse.ArgumentParser(description=__doc__)
  parser.add_argument(
      '-i',
      '--input_config',
      type=str,
      required=True,
      help='Source ConfigBundle JSON PB file.')
  parser.add_argument(
      '-o',
      '--output_config',
      type=str,
      required=True,
      help='Output JSON PB file.')
  args = parser.parse_args()
  Main(args.input_config, args.output_config)


if __name__ == '__main__':
  sys.exit(main())