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/* $Id$ */
/*
 * Copyright (c) 2005 Dimitri Sokolyuk <demon@dim13.org>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <sys/queue.h>
#include <sys/param.h>

#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#include "meta.h"
#include "files.h"
#include "tools.h"
#include "version.h"

#ifndef lint
static const char rcsid[] = "@(#)$Id$";
#endif /* not lint */

const char usagearg[] = "[-v] torrent [torrent ...]";

void	progress(struct btmeta *, int);
void	done(struct btmeta *);
void	printbf(char *, int);

void
printbf(char *bf, int sz)
{
	int i;

	for (i = 0; i < sz * NBBY; i++) {
		printf("%c", "01"[!!btisset(bf, i)]);
		if ((i + 1) % 8 == 0)
			printf("%c", "\n "[!!((i + 1) % 0x40)]);
	}
	printf("\n");
}

int
main(int argc, char **argv)
{
	extern char *__progname;
	struct btmeta *mp;
	struct progresscb cb;
	int ch, vflag;

	vflag = 0;
	while ((ch = getopt(argc, argv, "v")) != -1) {
		switch (ch) {
		case 'v':
			vflag = 1;
			break;
		case '?':
		default:
			usage(usagearg);
			/* NOTREACHED */
		}
	}

	argc -= optind;
	argv += optind;

	if (argc < 1)
		usage(usagearg);

	printf("%s %d.%d - check BitTorrent files\n",
		__progname, VERSION_MAJOR, VERSION_MINOR);

	for (; *argv != NULL; ++argv) {
		if ((mp = btreadmeta(*argv)) == NULL) {
			warnx("cannot read %s\n", *argv);
			continue;
		}

		if (btmkhier(mp) == -1)
			return -1;
		printf("\nfile: %s\n", mp->fname);
		printf("size: %s\n", metric((double) mp->size));
#if 0
		btchkfiles(mp, progress);
		done(mp);
#else
		cb.progress = progress;
		cb.done = done;
		btchkfiles(mp, &cb);
#endif
		if (vflag)
			printbf(mp->bitfield, mp->bitlen);

		btfreemeta(mp);
	}
	return 0;
}

void
progress(struct btmeta *mp, int n)
{
	if (n % 10 == 0) {
		printf("\rchecking %d of %d (%d ok)",
			n, mp->npieces, mp->good);
		fflush(stdout);
	}
}

void
done(struct btmeta *mp)
{
	printf("\rtotal good pieces %d/%d (%d%%)\n",
		mp->good, mp->npieces, mp->good * 100 / mp->npieces);

	printf("left: %s\n", metric((double) mp->left));
}