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/*
* Copyright (C) 2003-2011 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.h"
#include "Directory.hxx"
#include "tag.h"
#include <glib.h>
#include <assert.h>
Directory detached_root;
static struct song *
song_alloc(const char *uri, Directory *parent)
{
size_t uri_length;
assert(uri);
uri_length = strlen(uri);
assert(uri_length);
struct song *song = (struct song *)
g_malloc(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;
}
struct song *
song_remote_new(const char *uri)
{
return song_alloc(uri, nullptr);
}
struct song *
song_file_new(const char *path, Directory *parent)
{
assert((parent == nullptr) == (*path == '/'));
return song_alloc(path, parent);
}
struct song *
song_replace_uri(struct song *old_song, const char *uri)
{
struct song *new_song = song_alloc(uri, old_song->parent);
new_song->tag = old_song->tag;
new_song->mtime = old_song->mtime;
new_song->start_ms = old_song->start_ms;
new_song->end_ms = old_song->end_ms;
g_free(old_song);
return new_song;
}
struct song *
song_detached_new(const char *uri)
{
assert(uri != nullptr);
return song_alloc(uri, &detached_root);
}
struct song *
song_dup_detached(const struct song *src)
{
assert(src != nullptr);
struct song *song;
if (song_in_database(src)) {
char *uri = song_get_uri(src);
song = song_detached_new(uri);
g_free(uri);
} else
song = song_alloc(src->uri, nullptr);
song->tag = tag_dup(src->tag);
song->mtime = src->mtime;
song->start_ms = src->start_ms;
song->end_ms = src->end_ms;
return song;
}
void
song_free(struct song *song)
{
if (song->tag)
tag_free(song->tag);
g_free(song);
}
gcc_pure
static inline bool
directory_equals(const Directory &a, const Directory &b)
{
return strcmp(a.path, b.path) == 0;
}
gcc_pure
static inline bool
directory_is_same(const Directory *a, const Directory *b)
{
return a == b ||
(a != nullptr && b != nullptr &&
directory_equals(*a, *b));
}
bool
song_equals(const struct song *a, const struct song *b)
{
assert(a != nullptr);
assert(b != nullptr);
if (a->parent != nullptr && b->parent != nullptr &&
!directory_equals(*a->parent, *b->parent) &&
(a->parent == &detached_root || b->parent == &detached_root)) {
/* must compare the full URI if one of the objects is
"detached" */
char *au = song_get_uri(a);
char *bu = song_get_uri(b);
const bool result = strcmp(au, bu) == 0;
g_free(bu);
g_free(au);
return result;
}
return directory_is_same(a->parent, b->parent) &&
strcmp(a->uri, b->uri) == 0;
}
char *
song_get_uri(const struct song *song)
{
assert(song != nullptr);
assert(*song->uri);
if (!song_in_database(song) || song->parent->IsRoot())
return g_strdup(song->uri);
else
return g_strconcat(song->parent->GetPath(),
"/", song->uri, nullptr);
}
double
song_get_duration(const struct song *song)
{
if (song->end_ms > 0)
return (song->end_ms - song->start_ms) / 1000.0;
if (song->tag == nullptr)
return 0;
return song->tag->time - song->start_ms / 1000.0;
}
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