/*
 * Version string boilerplate for slide puzzle game.
 * Copyright © 2022-2023 Nick Bowler
 *
 * 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 <https://www.gnu.org/licenses/>.
 */

#include <config.h>
#include <stdio.h>
#include <stdarg.h>
#include <striconv.h>
#include <localcharset.h>

#include "version.h"

const char *init_copysign(char **alloc)
{
	*alloc = NULL;

	if (ENABLE_NLS) {
		char *buf = str_iconv("\xc2\xa9", "UTF-8", locale_charset());
		if (buf)
			return *alloc = buf;
	}

	return "(C)";
}

#define VERSION_HEAD_FMT "%s (RRace) %s\nCopyright %s 2023 Nick Bowler"
#define VERSION_HEAD_ARGS progname, PACKAGE_VERSION, copysign

void version_print_head(const char *progname, FILE *f)
{
	const char *copysign;
	char *copybuf;

	copysign = init_copysign(&copybuf);

	printf(VERSION_HEAD_FMT, VERSION_HEAD_ARGS);
	putc('\n', f);

	free(copybuf);
}

char *version_format_head(const char *progname)
{
	const char *copysign;
	char *copybuf, *ret;

	copysign = init_copysign(&copybuf);

	ret = malloc(sizeof VERSION_HEAD_FMT + 100);
	if (ret)
		sprintf(ret, VERSION_HEAD_FMT, VERSION_HEAD_ARGS);

	free(copybuf);
	return ret;
}