/**
* Sigstoped
* Copyright (C) 2020 Carl Klemm
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 3 as published by the Free Software Foundation.
*
* 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, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA  02110-1301, USA.
*/

#pragma once
#include<argp.h>
#include<string>

struct Config
{
	char** inFileNames = NULL;
	std::string outputFileName = "out.png";
	bool verbose = false;
};

const char *argp_program_version = "0.1";
const char *argp_program_bug_address = "<carl@uvos.xyz>";
static char doc[] = "Program to determine the lubricant thikness on a curved surface";
static char args_doc[] = "";

static struct argp_option options[] = 
{
{"verbose",  'v', 0,      0,  "Enable verbose logging" },
{"output", 'o', "File Name",      0,  "Output image file name" },
{ 0 }
};


error_t parse_opt (int key, char *arg, struct argp_state *state)
{
	Config* config = reinterpret_cast<Config*>(state->input);
	switch (key)
	{
		case 'v':
			config->verbose = false;
		break;
		case 'o':
			config->outputFileName.assign(arg);
		break;
		case ARGP_KEY_NO_ARGS:
			argp_usage(state);
		case ARGP_KEY_ARG:
			config->inFileNames = &state->argv[state->next-1];
			state->next = state->argc;
			break;
		default:
		return ARGP_ERR_UNKNOWN;
	}
	return 0;
}
static struct argp argp = { options, parse_opt, args_doc, doc };