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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.
*/
#include "config.h"
#include "Song.hxx"
#include "Directory.hxx"
#include "tag/Tag.hxx"
#include "util/Alloc.hxx"
#include "DetachedSong.hxx"
#include <assert.h>
#include <string.h>
#include <stdlib.h>
static Song *
song_alloc(const char *uri, Directory *parent)
{
size_t uri_length;
assert(uri);
uri_length = strlen(uri);
assert(uri_length);
Song *song = (Song *)
xalloc(sizeof(*song) - sizeof(song->uri) + uri_length + 1);
song->tag = nullptr;
memcpy(song->uri, uri, uri_length + 1);
song->parent = parent;
song->mtime = 0;
song->start_ms = song->end_ms = 0;
return song;
}
Song *
Song::NewFrom(DetachedSong &&other, Directory *parent)
{
Song *song = song_alloc(other.GetURI(), parent);
song->tag = new Tag(std::move(other.WritableTag()));
song->mtime = other.GetLastModified();
song->start_ms = other.GetStartMS();
song->end_ms = other.GetEndMS();
return song;
}
Song *
Song::NewFile(const char *path, Directory *parent)
{
return song_alloc(path, parent);
}
void
Song::Free()
{
delete tag;
free(this);
}
std::string
Song::GetURI() const
{
assert(*uri);
if (parent == nullptr || parent->IsRoot())
return std::string(uri);
else {
const char *path = parent->GetPath();
std::string result;
result.reserve(strlen(path) + 1 + strlen(uri));
result.assign(path);
result.push_back('/');
result.append(uri);
return result;
}
}
double
Song::GetDuration() const
{
if (end_ms > 0)
return (end_ms - start_ms) / 1000.0;
if (tag == nullptr)
return 0;
return tag->time - start_ms / 1000.0;
}
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