mpd/src/playlist/DespotifyPlaylistPlugin.cxx
2013-01-29 20:36:28 +01:00

147 lines
3.4 KiB
C++

/*
* Copyright (C) 2011-2013 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.
*/
#include "config.h"
#include "DespotifyPlaylistPlugin.hxx"
#include "DespotifyUtils.hxx"
#include "MemoryPlaylistProvider.hxx"
#include "tag.h"
#include "song.h"
extern "C" {
#include <despotify.h>
}
#include <glib.h>
#include <string.h>
#include <stdlib.h>
static void
add_song(std::forward_list<SongPointer> &songs, struct ds_track *track)
{
const char *dsp_scheme = despotify_playlist_plugin.schemes[0];
struct song *song;
char uri[128];
char *ds_uri;
/* Create a spt://... URI for MPD */
g_snprintf(uri, sizeof(uri), "%s://", dsp_scheme);
ds_uri = uri + strlen(dsp_scheme) + 3;
if (despotify_track_to_uri(track, ds_uri) != ds_uri) {
/* Should never really fail, but let's be sure */
g_debug("Can't add track %s\n", track->title);
return;
}
song = song_remote_new(uri);
song->tag = mpd_despotify_tag_from_track(track);
songs.emplace_front(song);
}
static bool
parse_track(struct despotify_session *session,
std::forward_list<SongPointer> &songs,
struct ds_link *link)
{
struct ds_track *track = despotify_link_get_track(session, link);
if (track == nullptr)
return false;
add_song(songs, track);
return true;
}
static bool
parse_playlist(struct despotify_session *session,
std::forward_list<SongPointer> &songs,
struct ds_link *link)
{
ds_playlist *playlist = despotify_link_get_playlist(session, link);
if (playlist == nullptr)
return false;
for (ds_track *track = playlist->tracks; track != nullptr;
track = track->next)
add_song(songs, track);
return true;
}
static struct playlist_provider *
despotify_playlist_open_uri(const char *url,
gcc_unused Mutex &mutex, gcc_unused Cond &cond)
{
despotify_session *session = mpd_despotify_get_session();
if (session == nullptr)
return nullptr;
/* Get link without spt:// */
ds_link *link =
despotify_link_from_uri(url + strlen(despotify_playlist_plugin.schemes[0]) + 3);
if (link == nullptr) {
g_debug("Can't find %s\n", url);
return nullptr;
}
std::forward_list<SongPointer> songs;
bool parse_result;
switch (link->type) {
case LINK_TYPE_TRACK:
parse_result = parse_track(session, songs, link);
break;
case LINK_TYPE_PLAYLIST:
parse_result = parse_playlist(session, songs, link);
break;
default:
parse_result = false;
break;
}
despotify_free_link(link);
if (!parse_result)
return nullptr;
songs.reverse();
return new MemoryPlaylistProvider(std::move(songs));
}
static const char *const despotify_schemes[] = {
"spt",
nullptr
};
const struct playlist_plugin despotify_playlist_plugin = {
"despotify",
nullptr,
nullptr,
despotify_playlist_open_uri,
nullptr,
nullptr,
nullptr,
despotify_schemes,
nullptr,
nullptr,
};