"""
Main entry point for the MARTe Autodoc project"

Author: Martino Ferrari
Email: martinogiordano.ferrari@iter.org
"""
from argparse import ArgumentParser
import logging
import sys
import os
import pprint

from MARTe.StandardParser import StandardParser
from MARTe.StandardParser import ParseException
import json

import autodoc

__version__ = "0.0.0"

def __args__():
  """Parse arguments."""
  parser = ArgumentParser(
    prog="autodoc",
    description="MARTe configuration auto documentation tool",
  )
  parser.add_argument("filename", help="Configuration file to document", type=str)
  parser.add_argument("--type", choices=["json", "marte"], default="marte", help="Configuration file type (default: `marte`)")
  parser.add_argument("--loglevel", choices=["DEBUG", "INFO", "WARNING", "ERROR", "CRITICAL"], default="ERROR", help="Logging level (default: `ERROR`)")
  parser.add_argument("--version", action="version", version=__version__)
  return parser.parse_args()

def main():
  """Main function."""
  args = __args__()
  logging.basicConfig(level=args.loglevel)
  logging.info(f"AutoDoc v{__version__}")
  if not os.path.exists(args.filename):
    logging.error(f"Specified file `{args.filename}` does not exists")
    sys.exit(1)
  config = {}
  if args.type == 'marte':
    parser = StandardParser()
    try:
      config = parser.parse_file(args.filename)
    except ParseException as e:
      logging.error(f"Impossible to parse file `{args.filename}` at position ({e.line},{e.col}): {e.msg}`")
      sys.exit(1)
    except Exception as e:
      logging.error(f"Sometihng went wrong with file `{args.filename}`")
      sys.exit(1)
  else:
    with open(args.filename, "r") as file:
      config = json.load(file)
  if not config:
    logging.error(f"Impossible to load configuration `{args.filename}`")
    sys.exit(1)
  print(f"# `{os.path.splitext(os.path.basename(args.filename))[0]}` Documentation")
  for label, obj in config.items():
    if 'Class' in obj:
      autodoc.document(label, obj)

if __name__ == '__main__':
  main()