/* libxmms-flac - XMMS FLAC input plugin

 * Copyright (C) 2000-2009  Josh Coalson

 * Copyright (C) 2011-2016  Xiph.Org Foundation

 * Copyright (C) 2002,2003,2004,2005,2006,2007,2008,2009  Daisuke Shimamura

 *

 * Based on FLAC plugin.c and mpg123 plugin

 *

 * 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 2

 * 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, write to the Free Software Foundation, Inc.,

 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

 */

#ifdef HAVE_CONFIG_H

#include "config.h"

#endif

#include "plugin.h"

#include <stdlib.h>

#include <string.h>

#include <stdio.h>

#include <glib.h>

#include <xmms/plugin.h>

#include <xmms/util.h>

#include <xmms/configfile.h>

#include <xmms/titlestring.h>

#include "FLAC/metadata.h"

#include "plugin_common/tags.h"

#include "charset.h"

#include "configure.h"

/*

 * Function local__extname (filename)

 *

 *    Return pointer within filename to its extenstion, or NULL if

 *    filename has no extension.

 *

 */

static char *local__extname(const char *filename)

{

	char *ext = strrchr(filename, '.');

	if (ext != NULL)

		++ext;

	return ext;

}

static char *local__getstr(char* str)

{

	if (str && strlen(str) > 0)

		return str;

	return NULL;

}

static int local__getnum(char* str)

{

	if (str && strlen(str) > 0)

		return atoi(str);

	return 0;

}

static char *local__getfield(const FLAC__StreamMetadata *tags, const char *name)

{

	if (0 != tags) {

		const char *utf8 = FLAC_plugin__tags_get_tag_utf8(tags, name);

		if (0 != utf8) {

			if(flac_cfg.title.convert_char_set)

				return convert_from_utf8_to_user(utf8);

			else

				return strdup(utf8);

		}

	}

	return 0;

}

static void local__safe_free(char *s)

{

	if (0 != s)

		free(s);

}

/*

 * Function flac_format_song_title (tag, filename)

 *

 *    Create song title according to `tag' and/or `filename' and

 *    return it.  The title must be subsequently freed using g_free().

 *

 */

char *flac_format_song_title(char *filename)

{

	char *ret = NULL;

	TitleInput *input = NULL;

	FLAC__StreamMetadata *tags;

	char *title, *artist, *performer, *album, *date, *tracknumber, *genre, *description;

	FLAC_plugin__tags_get(filename, &tags);

	title       = local__getfield(tags, "TITLE");

	artist      = local__getfield(tags, "ARTIST");

	performer   = local__getfield(tags, "PERFORMER");

	album       = local__getfield(tags, "ALBUM");

	date        = local__getfield(tags, "DATE");

	tracknumber = local__getfield(tags, "TRACKNUMBER");

	genre       = local__getfield(tags, "GENRE");

	description = local__getfield(tags, "DESCRIPTION");

	XMMS_NEW_TITLEINPUT(input);

	input->performer = local__getstr(artist);

	if(!input->performer)

		input->performer = local__getstr(performer);

	input->album_name = local__getstr(album);

	input->track_name = local__getstr(title);

	input->track_number = local__getnum(tracknumber);

	input->year = local__getnum(date);

	input->genre = local__getstr(genre);

	input->comment = local__getstr(description);

	input->file_name = g_basename(filename);

	input->file_path = filename;

	input->file_ext = local__extname(filename);

	ret = xmms_get_titlestring(flac_cfg.title.tag_override ? flac_cfg.title.tag_format : xmms_get_gentitle_format(), input);

	g_free(input);

	if (!ret) {

		/*

		 * Format according to filename.

		 */

		ret = g_strdup(g_basename(filename));

		if (local__extname(ret) != NULL)

			*(local__extname(ret) - 1) = '\0';	/* removes period */

	}

	FLAC_plugin__tags_destroy(&tags);

	local__safe_free(title);

	local__safe_free(artist);

	local__safe_free(performer);

	local__safe_free(album);

	local__safe_free(date);

	local__safe_free(tracknumber);

	local__safe_free(genre);

	local__safe_free(description);

	return ret;

}