#!/usr/bin/env python
# -*- coding: utf-8 -*-

# Stéganô - Stéganô is a basic Python Steganography module.
# Copyright (C) 2010-2017  Cédric Bonhomme - https://www.cedricbonhomme.org
#
# For more information : https://github.com/cedricbonhomme/Stegano
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>

__author__ = "Cedric Bonhomme"
__version__ = "$Revision: 0.1 $"
__date__ = "$Date: 2017/02/06 $"
__license__ = "GPLv3"

try:
    from stegano import red
except:
    print("Install stegano: sudo pip install Stegano")

import argparse
parser = argparse.ArgumentParser(prog='stegano-red')
subparsers = parser.add_subparsers(help='sub-command help', dest='command')

parser_hide = subparsers.add_parser('hide', help='hide help')
parser_hide.add_argument("-i", "--input", dest="input_image_file",
                help="Image file")
parser_hide.add_argument("-m", dest="secret_message",
                help="Your secret message to hide (non binary).")
parser_hide.add_argument("-o", "--output", dest="output_image_file",
                help="Image file")

parser_reveal = subparsers.add_parser('reveal', help='reveal help')
parser_reveal.add_argument("-i", "--input", dest="input_image_file",
                help="Image file")

arguments = parser.parse_args()

if arguments.command == 'hide':
    secret = red.hide(arguments.input_image_file, arguments.secret_message)
    secret.save(arguments.output_image_file)

elif arguments.command == 'reveal':
    secret = red.reveal(arguments.input_image_file)
    print(secret)
