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/*
* Copyright (C) 2003-2013 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 "QueueSave.hxx"
#include "Queue.hxx"
#include "PlaylistError.hxx"
#include "Song.hxx"
#include "SongSave.hxx"
#include "DatabasePlugin.hxx"
#include "DatabaseGlue.hxx"
#include "fs/TextFile.hxx"
#include "util/StringUtil.hxx"
#include "util/UriUtil.hxx"
#include "util/Error.hxx"
#include "fs/Traits.hxx"
#include "Log.hxx"
#include <stdlib.h>
#define PRIO_LABEL "Prio: "
static void
queue_save_database_song(FILE *fp, int idx, const Song &song)
{
const auto uri = song.GetURI();
fprintf(fp, "%i:%s\n", idx, uri.c_str());
}
static void
queue_save_full_song(FILE *fp, const Song &song)
{
song_save(fp, song);
}
static void
queue_save_song(FILE *fp, int idx, const Song &song)
{
if (song.IsInDatabase())
queue_save_database_song(fp, idx, song);
else
queue_save_full_song(fp, song);
}
void
queue_save(FILE *fp, const queue &queue)
{
for (unsigned i = 0; i < queue.GetLength(); i++) {
uint8_t prio = queue.GetPriorityAtPosition(i);
if (prio != 0)
fprintf(fp, PRIO_LABEL "%u\n", prio);
queue_save_song(fp, i, queue.Get(i));
}
}
void
queue_load_song(TextFile &file, const char *line, queue &queue)
{
if (queue.IsFull())
return;
uint8_t priority = 0;
if (StringStartsWith(line, PRIO_LABEL)) {
priority = strtoul(line + sizeof(PRIO_LABEL) - 1, nullptr, 10);
line = file.ReadLine();
if (line == nullptr)
return;
}
const Database *db = nullptr;
Song *song;
if (StringStartsWith(line, SONG_BEGIN)) {
const char *uri = line + sizeof(SONG_BEGIN) - 1;
if (!uri_has_scheme(uri) && !PathTraitsUTF8::IsAbsolute(uri))
return;
Error error;
song = song_load(file, nullptr, uri, error);
if (song == nullptr) {
LogError(error);
return;
}
} else {
char *endptr;
long ret = strtol(line, &endptr, 10);
if (ret < 0 || *endptr != ':' || endptr[1] == 0) {
LogError(playlist_domain,
"Malformed playlist line in state file");
return;
}
const char *uri = endptr + 1;
if (uri_has_scheme(uri)) {
song = Song::NewRemote(uri);
} else {
db = GetDatabase();
if (db == nullptr)
return;
song = db->GetSong(uri, IgnoreError());
if (song == nullptr)
return;
}
}
queue.Append(song, priority);
if (db != nullptr)
db->ReturnSong(song);
else
song->Free();
}
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