#! /usr/bin/env python3

import argparse
import phonagen

def parseArgs():
  # Define argument parser
  parser = argparse.ArgumentParser(description='Convert a phonology from csv to json.')
  parser.add_argument('file', metavar='csvfile', help='csv file to convert')
  parser.add_argument('--id', metavar='id', help='id of the phonology; guessed from the csv header if not provided', default='')
  parser.add_argument('--description', metavar='description', help='description of the phonology; empty if not provided', default='')
  parser.add_argument('--main', metavar='main-transcription', help='main transcription of the phonology; must correspond to an element of the csv header (outside id and description); guessed from the csv header if not provided.', default='')
  parser.add_argument('--output', metavar='output-file', help='Output file for the phonology. The file is printed to standard output if not given.', default='')
  # Parse arguments
  return parser.parse_args()

# Main
if __name__ == '__main__':
  args = parseArgs()
  phonology = phonagen.Phonology(id = args.id, description = args.description, mainTranscription = args.main)
  phonology.fromCsv(args.file)
  phonagenFile = phonagen.PhonagenFile()
  phonagenFile.addPhonology(phonology)
  phonagenFile.writeTo(args.output)