1 /* This file is part of Clementine.
2 Copyright 2010, David Sansome <me@davidsansome.com>
3
4 Clementine is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation, either version 3 of the License, or
7 (at your option) any later version.
8
9 Clementine is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
13
14 You should have received a copy of the GNU General Public License
15 along with Clementine. If not, see <http://www.gnu.org/licenses/>.
16 */
17
18 #include "library.h"
19
20 #include "librarymodel.h"
21 #include "librarybackend.h"
22 #include "core/application.h"
23 #include "core/database.h"
24 #include "core/player.h"
25 #include "core/tagreaderclient.h"
26 #include "core/taskmanager.h"
27 #include "core/thread.h"
28 #include "smartplaylists/generator.h"
29 #include "smartplaylists/querygenerator.h"
30 #include "smartplaylists/search.h"
31
32 const char* Library::kSongsTable = "songs";
33 const char* Library::kDirsTable = "directories";
34 const char* Library::kSubdirsTable = "subdirectories";
35 const char* Library::kFtsTable = "songs_fts";
36
Library(Application * app,QObject * parent)37 Library::Library(Application* app, QObject* parent)
38 : QObject(parent),
39 app_(app),
40 backend_(nullptr),
41 model_(nullptr),
42 watcher_(nullptr),
43 watcher_thread_(nullptr),
44 save_statistics_in_files_(false),
45 save_ratings_in_files_(false) {
46 backend_ = new LibraryBackend;
47 backend()->moveToThread(app->database()->thread());
48
49 backend_->Init(app->database(), kSongsTable, kDirsTable, kSubdirsTable,
50 kFtsTable);
51
52 using smart_playlists::Generator;
53 using smart_playlists::GeneratorPtr;
54 using smart_playlists::QueryGenerator;
55 using smart_playlists::Search;
56 using smart_playlists::SearchTerm;
57
58 model_ = new LibraryModel(backend_, app_, this);
59 model_->set_show_smart_playlists(true);
60 model_->set_default_smart_playlists(
61 LibraryModel::DefaultGenerators()
62 << (LibraryModel::GeneratorList()
63 << GeneratorPtr(new QueryGenerator(
64 QT_TRANSLATE_NOOP("Library", "50 random tracks"),
65 Search(Search::Type_All, Search::TermList(),
66 Search::Sort_Random, SearchTerm::Field_Title, 50)))
67 << GeneratorPtr(new QueryGenerator(
68 QT_TRANSLATE_NOOP("Library", "Ever played"),
69 Search(Search::Type_And, Search::TermList() << SearchTerm(
70 SearchTerm::Field_PlayCount,
71 SearchTerm::Op_GreaterThan, 0),
72 Search::Sort_Random, SearchTerm::Field_Title)))
73 << GeneratorPtr(new QueryGenerator(
74 QT_TRANSLATE_NOOP("Library", "Never played"),
75 Search(Search::Type_And, Search::TermList() << SearchTerm(
76 SearchTerm::Field_PlayCount,
77 SearchTerm::Op_Equals, 0),
78 Search::Sort_Random, SearchTerm::Field_Title)))
79 << GeneratorPtr(new QueryGenerator(
80 QT_TRANSLATE_NOOP("Library", "Last played"),
81 Search(Search::Type_All, Search::TermList(),
82 Search::Sort_FieldDesc, SearchTerm::Field_LastPlayed)))
83 << GeneratorPtr(new QueryGenerator(
84 QT_TRANSLATE_NOOP("Library", "Most played"),
85 Search(Search::Type_All, Search::TermList(),
86 Search::Sort_FieldDesc, SearchTerm::Field_PlayCount)))
87 << GeneratorPtr(new QueryGenerator(
88 QT_TRANSLATE_NOOP("Library", "Favourite tracks"),
89 Search(Search::Type_All, Search::TermList(),
90 Search::Sort_FieldDesc, SearchTerm::Field_Score)))
91 << GeneratorPtr(new QueryGenerator(
92 QT_TRANSLATE_NOOP("Library", "Newest tracks"),
93 Search(Search::Type_All, Search::TermList(),
94 Search::Sort_FieldDesc,
95 SearchTerm::Field_DateCreated))))
96 << (LibraryModel::GeneratorList()
97 << GeneratorPtr(new QueryGenerator(
98 QT_TRANSLATE_NOOP("Library", "All tracks"),
99 Search(Search::Type_All, Search::TermList(),
100 Search::Sort_FieldAsc, SearchTerm::Field_Artist, -1)))
101 << GeneratorPtr(new QueryGenerator(
102 QT_TRANSLATE_NOOP("Library", "Least favourite tracks"),
103 Search(Search::Type_Or,
104 Search::TermList()
105 << SearchTerm(SearchTerm::Field_Rating,
106 SearchTerm::Op_LessThan, 0.6)
107 << SearchTerm(SearchTerm::Field_SkipCount,
108 SearchTerm::Op_GreaterThan, 4),
109 Search::Sort_FieldDesc, SearchTerm::Field_SkipCount))))
110 << (LibraryModel::GeneratorList() << GeneratorPtr(new QueryGenerator(
111 QT_TRANSLATE_NOOP("Library", "Dynamic random mix"),
112 Search(Search::Type_All, Search::TermList(), Search::Sort_Random,
113 SearchTerm::Field_Title),
114 true))));
115
116 // full rescan revisions
117 full_rescan_revisions_[26] = tr("CUE sheet support");
118 full_rescan_revisions_[50] = tr("Original year tag support");
119
120 ReloadSettings();
121 }
122
~Library()123 Library::~Library() {
124 watcher_->Stop();
125 watcher_->deleteLater();
126 watcher_thread_->exit();
127 watcher_thread_->wait(5000 /* five seconds */);
128 }
129
Init()130 void Library::Init() {
131 watcher_ = new LibraryWatcher;
132 watcher_thread_ = new Thread(this);
133 watcher_thread_->SetIoPriority(Utilities::IOPRIO_CLASS_IDLE);
134
135 watcher_->moveToThread(watcher_thread_);
136 watcher_thread_->start(QThread::IdlePriority);
137
138 watcher_->set_backend(backend_);
139 watcher_->set_task_manager(app_->task_manager());
140
141 connect(backend_, SIGNAL(DirectoryDiscovered(Directory, SubdirectoryList)),
142 watcher_, SLOT(AddDirectory(Directory, SubdirectoryList)));
143 connect(backend_, SIGNAL(DirectoryDeleted(Directory)), watcher_,
144 SLOT(RemoveDirectory(Directory)));
145 connect(backend_, SIGNAL(SongsRatingChanged(SongList)),
146 SLOT(SongsRatingChanged(SongList)));
147 connect(backend_, SIGNAL(SongsStatisticsChanged(SongList)),
148 SLOT(SongsStatisticsChanged(SongList)));
149 connect(watcher_, SIGNAL(NewOrUpdatedSongs(SongList)), backend_,
150 SLOT(AddOrUpdateSongs(SongList)));
151 connect(watcher_, SIGNAL(SongsMTimeUpdated(SongList)), backend_,
152 SLOT(UpdateMTimesOnly(SongList)));
153 connect(watcher_, SIGNAL(SongsDeleted(SongList)), backend_,
154 SLOT(MarkSongsUnavailable(SongList)));
155 connect(watcher_, SIGNAL(SongsReadded(SongList, bool)), backend_,
156 SLOT(MarkSongsUnavailable(SongList, bool)));
157 connect(watcher_, SIGNAL(SubdirsDiscovered(SubdirectoryList)), backend_,
158 SLOT(AddOrUpdateSubdirs(SubdirectoryList)));
159 connect(watcher_, SIGNAL(SubdirsMTimeUpdated(SubdirectoryList)), backend_,
160 SLOT(AddOrUpdateSubdirs(SubdirectoryList)));
161 connect(watcher_, SIGNAL(CompilationsNeedUpdating()), backend_,
162 SLOT(UpdateCompilations()));
163 connect(app_->playlist_manager(), SIGNAL(CurrentSongChanged(Song)),
164 SLOT(CurrentSongChanged(Song)));
165 connect(app_->player(), SIGNAL(Stopped()), SLOT(Stopped()));
166
167 // This will start the watcher checking for updates
168 backend_->LoadDirectoriesAsync();
169 }
170
IncrementalScan()171 void Library::IncrementalScan() { watcher_->IncrementalScanAsync(); }
172
FullScan()173 void Library::FullScan() { watcher_->FullScanAsync(); }
174
PauseWatcher()175 void Library::PauseWatcher() { watcher_->SetRescanPausedAsync(true); }
176
ResumeWatcher()177 void Library::ResumeWatcher() { watcher_->SetRescanPausedAsync(false); }
178
ReloadSettings()179 void Library::ReloadSettings() {
180 watcher_->ReloadSettingsAsync();
181
182 // These don't belong in LibraryBackend's group but it's too late to change
183 // now.
184 QSettings s;
185 s.beginGroup(LibraryBackend::kSettingsGroup);
186 save_statistics_in_files_ =
187 s.value("save_statistics_in_file", false).toBool();
188 save_ratings_in_files_ = s.value("save_ratings_in_file", false).toBool();
189 }
190
WriteAllSongsStatisticsToFiles()191 void Library::WriteAllSongsStatisticsToFiles() {
192 const SongList all_songs = backend_->GetAllSongs();
193
194 const int task_id = app_->task_manager()->StartTask(
195 tr("Saving songs statistics into songs files"));
196 app_->task_manager()->SetTaskBlocksLibraryScans(task_id);
197
198 const int nb_songs = all_songs.size();
199 int i = 0;
200 for (const Song& song : all_songs) {
201 TagReaderClient::Instance()->UpdateSongStatisticsBlocking(song);
202 TagReaderClient::Instance()->UpdateSongRatingBlocking(song);
203 app_->task_manager()->SetTaskProgress(task_id, ++i, nb_songs);
204 }
205 app_->task_manager()->SetTaskFinished(task_id);
206 }
207
Stopped()208 void Library::Stopped() { CurrentSongChanged(Song()); }
209
CurrentSongChanged(const Song & song)210 void Library::CurrentSongChanged(const Song& song) {
211 TagReaderReply* reply = nullptr;
212 if (queued_rating_.is_valid()) {
213 reply = app_->tag_reader_client()->UpdateSongRating(queued_rating_);
214 queued_rating_ = Song();
215 } else if (queued_statistics_.is_valid()) {
216 reply = app_->tag_reader_client()->UpdateSongStatistics(queued_statistics_);
217 queued_statistics_ = Song();
218 }
219
220 if (reply) {
221 connect(reply, SIGNAL(Finished(bool)), reply, SLOT(deleteLater()));
222 }
223
224 if (song.filetype() == Song::Type_Asf) {
225 current_wma_song_url_ = song.url();
226 }
227 }
228
SongsRatingChanged(const SongList & songs)229 void Library::SongsRatingChanged(const SongList& songs) {
230 if (save_ratings_in_files_) {
231 app_->tag_reader_client()->UpdateSongsRating(
232 FilterCurrentWMASong(songs, &queued_rating_));
233 }
234 }
235
SongsStatisticsChanged(const SongList & songs)236 void Library::SongsStatisticsChanged(const SongList& songs) {
237 if (save_statistics_in_files_) {
238 app_->tag_reader_client()->UpdateSongsStatistics(
239 FilterCurrentWMASong(songs, &queued_statistics_));
240 }
241 }
242
FilterCurrentWMASong(SongList songs,Song * queued)243 SongList Library::FilterCurrentWMASong(SongList songs, Song* queued) {
244 for (SongList::iterator it = songs.begin(); it != songs.end();) {
245 if (it->url() == current_wma_song_url_) {
246 *queued = *it;
247 it = songs.erase(it);
248 } else {
249 ++it;
250 }
251 }
252 return songs;
253 }
254