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/*
* Copyright (C) 2003-2009 The Music Player Daemon Project
* http://www.musicpd.org
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* This is the sticker database library. It is the backend of all the
* sticker code in MPD.
*
* "Stickers" are pieces of information attached to existing MPD
* objects (e.g. song files, directories, albums). Clients can create
* arbitrary name/value pairs. MPD itself does not assume any special
* meaning in them.
*
* The goal is to allow clients to share additional (possibly dynamic)
* information about songs, which is neither stored on the client (not
* available to other clients), nor stored in the song files (MPD has
* no write access).
*
* Client developers should create a standard for common sticker
* names, to ensure interoperability.
*
* Examples: song ratings; statistics; deferred tag writes; lyrics;
* ...
*
*/
#ifndef STICKER_H
#define STICKER_H
#include <glib.h>
#include <stdbool.h>
/**
* Opens the sticker database (if path is not NULL).
*/
void
sticker_global_init(const char *path);
/**
* Close the sticker database.
*/
void
sticker_global_finish(void);
/**
* Returns true if the sticker database is configured and available.
*/
bool
sticker_enabled(void);
/**
* Populates a GList with GPtrArrays of sticker names and values from
* an object's sticker record. The caller must free each GPtrArray
* element of the returned list with g_ptr_array_free(), as well as
* the returned GList with g_list_free().
*/
GList *
sticker_list_values(const char *type, const char *uri);
/**
* Returns one value from an object's sticker record. The caller must
* free the return value with g_free().
*/
char *
sticker_load_value(const char *type, const char *uri, const char *name);
/**
* Sets a sticker value in the specified object. Overwrites existing
* values.
*/
bool
sticker_store_value(const char *type, const char *uri,
const char *name, const char *value);
/**
* Deletes a sticker from the database. All sticker values of the
* specified object are deleted.
*/
bool
sticker_delete(const char *type, const char *uri);
#endif
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