aboutsummaryrefslogtreecommitdiff
path: root/src/PlaylistPrint.cxx
blob: e79e877322b98097682614dbc94bdca4250a4a66 (plain)
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
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
/*
 * 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 "PlaylistPrint.hxx"
#include "PlaylistFile.hxx"
#include "PlaylistAny.hxx"
#include "PlaylistSong.hxx"
#include "Playlist.hxx"
#include "PlaylistRegistry.hxx"
#include "PlaylistPlugin.hxx"
#include "QueuePrint.hxx"
#include "SongPrint.hxx"
#include "DatabaseGlue.hxx"
#include "DatabasePlugin.hxx"
#include "Client.hxx"
#include "input_stream.h"

extern "C" {
#include "song.h"
}

void
playlist_print_uris(Client *client, const struct playlist *playlist)
{
	const struct queue *queue = &playlist->queue;

	queue_print_uris(client, queue, 0, queue->GetLength());
}

bool
playlist_print_info(Client *client, const struct playlist *playlist,
		    unsigned start, unsigned end)
{
	const struct queue *queue = &playlist->queue;

	if (end > queue->GetLength())
		/* correct the "end" offset */
		end = queue->GetLength();

	if (start > end)
		/* an invalid "start" offset is fatal */
		return false;

	queue_print_info(client, queue, start, end);
	return true;
}

bool
playlist_print_id(Client *client, const struct playlist *playlist,
		  unsigned id)
{
	const struct queue *queue = &playlist->queue;
	int position;

	position = queue->IdToPosition(id);
	if (position < 0)
		/* no such song */
		return false;

	return playlist_print_info(client, playlist, position, position + 1);
}

bool
playlist_print_current(Client *client, const struct playlist *playlist)
{
	int current_position = playlist->GetCurrentPosition();
	if (current_position < 0)
		return false;

	queue_print_info(client, &playlist->queue,
			 current_position, current_position + 1);
	return true;
}

void
playlist_print_find(Client *client, const struct playlist *playlist,
		    const SongFilter &filter)
{
	queue_find(client, &playlist->queue, filter);
}

void
playlist_print_changes_info(Client *client,
			    const struct playlist *playlist,
			    uint32_t version)
{
	queue_print_changes_info(client, &playlist->queue, version);
}

void
playlist_print_changes_position(Client *client,
				const struct playlist *playlist,
				uint32_t version)
{
	queue_print_changes_position(client, &playlist->queue, version);
}

static bool
PrintSongDetails(Client *client, const char *uri_utf8)
{
	const Database *db = GetDatabase(nullptr);
	if (db == nullptr)
		return false;

	song *song = db->GetSong(uri_utf8, nullptr);
	if (song == nullptr)
		return false;

	song_print_info(client, song);
	db->ReturnSong(song);
	return true;
}

bool
spl_print(Client *client, const char *name_utf8, bool detail,
	  GError **error_r)
{
	GError *error = NULL;
	PlaylistFileContents contents = LoadPlaylistFile(name_utf8, &error);
	if (contents.empty() && error != nullptr) {
		g_propagate_error(error_r, error);
		return false;
	}

	for (const auto &uri_utf8 : contents) {
		if (!detail || !PrintSongDetails(client, uri_utf8.c_str()))
			client_printf(client, SONG_FILE "%s\n",
				      uri_utf8.c_str());
	}

	return true;
}

static void
playlist_provider_print(Client *client, const char *uri,
			struct playlist_provider *playlist, bool detail)
{
	struct song *song;
	char *base_uri = uri != NULL ? g_path_get_dirname(uri) : NULL;

	while ((song = playlist_plugin_read(playlist)) != NULL) {
		song = playlist_check_translate_song(song, base_uri, false);
		if (song == NULL)
			continue;

		if (detail)
			song_print_info(client, song);
		else
			song_print_uri(client, song);

		song_free(song);
	}

	g_free(base_uri);
}

bool
playlist_file_print(Client *client, const char *uri, bool detail)
{
	Mutex mutex;
	Cond cond;

	struct input_stream *is;
	struct playlist_provider *playlist =
		playlist_open_any(uri, mutex, cond, &is);
	if (playlist == NULL)
		return false;

	playlist_provider_print(client, uri, playlist, detail);
	playlist_plugin_close(playlist);

	if (is != NULL)
		input_stream_close(is);

	return true;
}