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/*
* Copyright (C) 2003-2014 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/*
* Maps directory and song objects to file system paths.
*/
#ifndef MPD_MAPPER_HXX
#define MPD_MAPPER_HXX
#include <string>
#include "Compiler.h"
#define PLAYLIST_FILE_SUFFIX ".m3u"
class AllocatedPath;
struct Directory;
struct Song;
struct LightSong;
class DetachedSong;
void
mapper_init(AllocatedPath &&music_dir, AllocatedPath &&playlist_dir);
void mapper_finish(void);
#ifdef ENABLE_DATABASE
/**
* Return the absolute path of the music directory encoded in UTF-8 or
* nullptr if no music directory was configured.
*/
gcc_const
const char *
mapper_get_music_directory_utf8(void);
/**
* Return the absolute path of the music directory encoded in the
* filesystem character set.
*/
gcc_const
const AllocatedPath &
mapper_get_music_directory_fs(void);
/**
* Returns true if a music directory was configured.
*/
gcc_const
static inline bool
mapper_has_music_directory(void)
{
return mapper_get_music_directory_utf8() != nullptr;
}
#endif
/**
* If the specified absolute path points inside the music directory,
* this function converts it to a relative path. If not, it returns
* the unmodified string pointer.
*/
gcc_pure
const char *
map_to_relative_path(const char *path_utf8);
#ifdef ENABLE_DATABASE
/**
* Determines the absolute file system path of a relative URI. This
* is basically done by converting the URI to the file system charset
* and prepending the music directory.
*/
gcc_pure
AllocatedPath
map_uri_fs(const char *uri);
/**
* Determines the file system path of a directory object.
*
* @param directory the directory object
* @return the path in file system encoding, or nullptr if mapping failed
*/
gcc_pure
AllocatedPath
map_directory_fs(const Directory &directory);
/**
* Determines the file system path of a directory's child (may be a
* sub directory or a song).
*
* @param directory the parent directory object
* @param name the child's name in UTF-8
* @return the path in file system encoding, or nullptr if mapping failed
*/
gcc_pure
AllocatedPath
map_directory_child_fs(const Directory &directory, const char *name);
/**
* "Detach" the #Song object, i.e. convert it to a #DetachedSong
* instance.
*/
gcc_pure
DetachedSong
map_song_detach(const LightSong &song);
/**
* Determines the file system path of a song. This must not be a
* remote song.
*
* @param song the song object
* @return the path in file system encoding, or nullptr if mapping failed
*/
gcc_pure
AllocatedPath
map_song_fs(const Song &song);
#endif
gcc_pure
AllocatedPath
map_song_fs(const DetachedSong &song);
#ifdef ENABLE_DATABASE
/**
* Maps a file system path (relative to the music directory or
* absolute) to a relative path in UTF-8 encoding.
*
* @param path_fs a path in file system encoding
* @return the relative path in UTF-8, or an empty string if mapping
* failed
*/
gcc_pure
std::string
map_fs_to_utf8(const char *path_fs);
#endif
/**
* Returns the playlist directory.
*/
gcc_const
const AllocatedPath &
map_spl_path(void);
/**
* Maps a playlist name (without the ".m3u" suffix) to a file system
* path.
*
* @return the path in file system encoding, or nullptr if mapping failed
*/
gcc_pure
AllocatedPath
map_spl_utf8_to_fs(const char *name);
#endif
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