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/*
* Copyright 2003-2018 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 "SongSticker.hxx"
#include "StickerDatabase.hxx"
#include "song/LightSong.hxx"
#include "db/Interface.hxx"
#include "util/Alloc.hxx"
#include "util/ScopeExit.hxx"
#include <string.h>
#include <stdlib.h>
std::string
sticker_song_get_value(const LightSong &song, const char *name)
{
const auto uri = song.GetURI();
return sticker_load_value("song", uri.c_str(), name);
}
void
sticker_song_set_value(const LightSong &song,
const char *name, const char *value)
{
const auto uri = song.GetURI();
sticker_store_value("song", uri.c_str(), name, value);
}
bool
sticker_song_delete(const char *uri)
{
return sticker_delete("song", uri);
}
bool
sticker_song_delete(const LightSong &song)
{
return sticker_song_delete(song.GetURI().c_str());
}
bool
sticker_song_delete_value(const LightSong &song, const char *name)
{
const auto uri = song.GetURI();
return sticker_delete_value("song", uri.c_str(), name);
}
Sticker *
sticker_song_get(const LightSong &song)
{
const auto uri = song.GetURI();
return sticker_load("song", uri.c_str());
}
namespace {
struct sticker_song_find_data {
const Database *db;
const char *base_uri;
size_t base_uri_length;
void (*func)(const LightSong &song, const char *value,
void *user_data);
void *user_data;
};
}
static void
sticker_song_find_cb(const char *uri, const char *value, void *user_data)
{
struct sticker_song_find_data *data =
(struct sticker_song_find_data *)user_data;
if (memcmp(uri, data->base_uri, data->base_uri_length) != 0)
/* should not happen, ignore silently */
return;
const Database *db = data->db;
try {
const LightSong *song = db->GetSong(uri);
data->func(*song, value, data->user_data);
db->ReturnSong(song);
} catch (...) {
}
}
void
sticker_song_find(const Database &db, const char *base_uri, const char *name,
StickerOperator op, const char *value,
void (*func)(const LightSong &song, const char *value,
void *user_data),
void *user_data)
{
struct sticker_song_find_data data;
data.db = &db;
data.func = func;
data.user_data = user_data;
char *allocated;
data.base_uri = base_uri;
if (*data.base_uri != 0)
/* append slash to base_uri */
data.base_uri = allocated =
xstrcatdup(data.base_uri, "/");
else
/* searching in root directory - no trailing slash */
allocated = nullptr;
AtScopeExit(allocated) { free(allocated); };
data.base_uri_length = strlen(data.base_uri);
sticker_find("song", data.base_uri, name, op, value,
sticker_song_find_cb, &data);
}