aboutsummaryrefslogtreecommitdiffstats
path: root/src/sticker/SongSticker.cxx
blob: 3431a1702ce6a6929569bee88613a71526e64939 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
/*
 * 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 "SongSticker.hxx"
#include "StickerDatabase.hxx"
#include "db/LightSong.hxx"
#include "db/Song.hxx"
#include "db/Directory.hxx"

#include <glib.h>

#include <assert.h>
#include <string.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);
}

bool
sticker_song_set_value(const LightSong &song,
		       const char *name, const char *value)
{
	const auto uri = song.GetURI();
	return sticker_store_value("song", uri.c_str(), name, value);
}

bool
sticker_song_delete(const LightSong &song)
{
	const auto uri = song.GetURI();
	return sticker_delete("song", uri.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);
}

struct sticker *
sticker_song_get(const LightSong &song)
{
	const auto uri = song.GetURI();
	return sticker_load("song", uri.c_str());
}

struct sticker_song_find_data {
	Directory *directory;
	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;

	Song *song = data->directory->LookupSong(uri + data->base_uri_length);
	if (song != nullptr)
		data->func(song->Export(), value, data->user_data);
}

bool
sticker_song_find(Directory &directory, const char *name,
		  void (*func)(const LightSong &song, const char *value,
			       void *user_data),
		  void *user_data)
{
	struct sticker_song_find_data data;
	data.directory = &directory;
	data.func = func;
	data.user_data = user_data;

	char *allocated;
	data.base_uri = directory.GetPath();
	if (*data.base_uri != 0)
		/* append slash to base_uri */
		data.base_uri = allocated =
			g_strconcat(data.base_uri, "/", nullptr);
	else
		/* searching in root directory - no trailing slash */
		allocated = nullptr;

	data.base_uri_length = strlen(data.base_uri);

	bool success = sticker_find("song", data.base_uri, name,
				    sticker_song_find_cb, &data);
	g_free(allocated);

	return success;
}