#!/usr/bin/env python

from machlib.menu import Menu, get_data_from

import argparse
from configparser import ConfigParser, ExtendedInterpolation
import os
import os.path
import errno

# default configuration and menu files
_default_configuration_file = '~/.config/mach5/config.ini'


# -------------------- MAIN --------------------

# Parse command line options
arg_parser = argparse.ArgumentParser(
    description='Our simple chords application')
arg_parser.add_argument('-c', '--cfg', help='Config ini file')
arg_parser.add_argument('-m', '--menu', help='Menu yaml file')

args = arg_parser.parse_args()

# load config file
cfg_file = args.cfg if args.cfg else _default_configuration_file
cfg_file = os.path.expanduser(cfg_file)

if not os.path.exists(cfg_file):
    raise FileNotFoundError(errno.ENOENT,
                            os.strerror(errno.ENOENT), cfg_file)


_configuration = ConfigParser(interpolation=ExtendedInterpolation())
found = _configuration.read(cfg_file)

# [TODO] next lines should raise an error
if (not found):
    print('[ERROR] Config file not found')
    raise FileNotFoundError

menu_file = args.menu if args.menu\
    else _configuration['General']['default_menu_file']
menu_file = os.path.expanduser(menu_file)

if not os.path.exists(menu_file):
    raise FileNotFoundError(errno.ENOENT,
                            os.strerror(errno.ENOENT), menu_file)


# Menu(get_data_from(menu_file)).get_command().execute()
Menu(get_data_from(menu_file)).get_option()