# -*- coding: utf-8 -*-
"""
BSD 2-Clause License

Copyright (c) 2020-2021, The FreeBSD Project
Copyright (c) 2020-2021, Sergio Carlavilla <carlavilla@FreeBSD.org>

This script will convert the releases.adoc file to releases.toml
in this way we can share the releases variables between AsciiDoctor and Hugo
"""
#!/usr/bin/env python3

import sys, getopt
import re

variables = {}

def getValueByKey(key):
  return variables[key.replace("{", "").replace("}", "")].replace("\"", "")

def loadVariables(path):
  with open(path, 'r', encoding = 'utf-8') as releasesFile:
    line = releasesFile.readline()

    while line:
      if (re.match(r"^:{1}[^\n]+", line)):
        variable = re.sub(':', '', line.strip(), 1)
        variable = re.sub(': ', '="', variable)
        variable += "\""
        data = variable.split("=")

        if (len(data) == 2):
          variables.update( {data[0] : data[1]} )

      line = releasesFile.readline()

def main(argv):
  path = ''

  try:
    opts, args = getopt.getopt(argv,"hp:",["path="])
  except getopt.GetoptError:
    print('releases-toml.py -p <path>')
    sys.exit(2)
  for opt, arg in opts:
    if opt == '-h':
      print('releases-toml.py -p <path>')
      sys.exit()
    elif opt in ("-p", "--path"):
      path = arg

  releasesTOML =  "# Code @" + "generated by the FreeBSD Documentation toolchain. DO NOT EDIT.\n"
  releasesTOML += "# Please don't change this file manually but run `make` to update it.\n"
  releasesTOML += "# For more information, please read the FreeBSD Documentation Project Primer\n"
  releasesTOML += '\n'

  loadVariables(path)

  for key in variables:
    foundBraces = re.search(r"\{.*?\}", variables[key])

    if (foundBraces):
      braces = foundBraces.group(0)
      releasesTOML += key + "=" + variables[key].replace(braces, getValueByKey(braces)) + "\n"
    else:
      releasesTOML += key + "=" + variables[key] + "\n"

  with open('./data/releases.toml', 'w', encoding = 'utf-8') as releasesTOMLFile:
    releasesTOMLFile.write(releasesTOML)

if __name__ == "__main__":
  main(sys.argv[1:])