#!/usr/bin/env python3
# Copyright 2013 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

"""Updates the ExtensionEvents and ExtensionFunctions enums in histograms.xml
with values read from extension_event_histogram_value.h and
extension_function_histogram_value.h.

If the file was pretty-printed, the updated version is pretty-printed too.
"""

from __future__ import print_function

import os
import sys

import setup_modules  # pylint: disable=unused-import

from chromium_src.tools.metrics.histograms.update_histogram_enum import (
  UpdateHistogramEnum,
)

if __name__ == '__main__':
  if len(sys.argv) > 1:
    print('No arguments expected!', file=sys.stderr)
    sys.stderr.write(__doc__)
    sys.exit(1)

  histograms = (
    ('ExtensionEvents', 'extensions/browser/extension_event_histogram_value.h'),
    (
      'ExtensionFunctions',
      'extensions/browser/extension_function_histogram_value.h',
    ),
  )
  for enum_name, source_header in histograms:
    UpdateHistogramEnum(
      'tools/metrics/histograms/metadata/extensions/enums.xml',
      histogram_enum_name=enum_name,
      source_enum_path=source_header,
      start_marker='^enum HistogramValue {',
      end_marker='^ENUM_BOUNDARY',
      calling_script=os.path.basename(__file__),
    )