Add smart playlists, ratings and Qobuz

Fixes #259
Fixes #264

src/smartplaylists/smartplaylistsearch.h

@@ -0,0 +1,69 @@
+/*
+ * Strawberry Music Player
+ * This file was part of Clementine.
+ * Copyright 2010, David Sansome <me@davidsansome.com>
+ *
+ * Strawberry 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Strawberry 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 Strawberry.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef SMARTPLAYLISTSEARCH_H
+#define SMARTPLAYLISTSEARCH_H
+
+#include "config.h"
+
+#include <QList>
+#include <QString>
+#include <QDataStream>
+
+#include "playlistgenerator.h"
+#include "smartplaylistsearchterm.h"
+
+class SmartPlaylistSearch {
+
+ public:
+  typedef QList<SmartPlaylistSearchTerm> TermList;
+
+  // These values are persisted, so add to the end of the enum only
+  enum SearchType { Type_And = 0, Type_Or, Type_All, };
+
+  // These values are persisted, so add to the end of the enum only
+  enum SortType { Sort_Random = 0, Sort_FieldAsc, Sort_FieldDesc, };
+
+  explicit SmartPlaylistSearch();
+  explicit SmartPlaylistSearch(const SearchType type, const TermList terms, const SortType sort_type, const SmartPlaylistSearchTerm::Field sort_field, const int limit = PlaylistGenerator::kDefaultLimit);
+
+  bool is_valid() const;
+  bool operator==(const SmartPlaylistSearch &other) const;
+  bool operator!=(const SmartPlaylistSearch &other) const { return !(*this == other); }
+
+  SearchType search_type_;
+  TermList terms_;
+  SortType sort_type_;
+  SmartPlaylistSearchTerm::Field sort_field_;
+  int limit_;
+
+  // Not persisted, used to alter the behaviour of the query
+  QList<int> id_not_in_;
+  int first_item_;
+
+  void Reset();
+  QString ToSql(const QString &songs_table) const;
+
+};
+
+QDataStream &operator<<(QDataStream &s, const SmartPlaylistSearch &search);
+QDataStream &operator>>(QDataStream &s, SmartPlaylistSearch &search);
+
+#endif  // SMARTPLAYLISTSEARCH_H