Deduplicate embedded images, ref #628

2025-03-15 14:48:37 +01:00
parent 744abefc8b
commit 05000d8a1a
65 changed files with 1307 additions and 319 deletions
@@ -0,0 +1,124 @@
+/*
+ * Copyright (C) 2025 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS 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.
+ *
+ * LMS 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 LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "database/Directory.hpp"
+
+#include "database/Session.hpp"
+#include "database/Track.hpp"
+#include "database/TrackEmbeddedImage.hpp"
+#include "database/Types.hpp"
+
+#include "Utils.hpp"
+#include "traits/IdTypeTraits.hpp"
+#include "traits/ImageHashTypeTraits.hpp"
+
+namespace lms::db
+{
+    namespace
+    {
+        Wt::Dbo::Query<Wt::Dbo::ptr<TrackEmbeddedImage>> createQuery(Session& session, const TrackEmbeddedImage::FindParameters& params)
+        {
+            session.checkReadTransaction();
+
+            auto query{ session.getDboSession()->query<Wt::Dbo::ptr<TrackEmbeddedImage>>("SELECT t_e_i FROM track_embedded_image t_e_i") };
+
+            if (params.isPreferred
+                || params.track.isValid()
+                || params.release.isValid()
+                || params.trackList.isValid()
+                || params.sortMethod == TrackEmbeddedImageSortMethod::FrontCoverAndSize)
+            {
+                query.join("track_embedded_image_link t_e_i_l ON t_e_i_l.track_embedded_image_id = t_e_i.id");
+
+                if (params.isPreferred)
+                    query.where("t_e_i_l.is_preferred = ?").bind(params.isPreferred.value());
+
+                if (params.track.isValid())
+                    query.where("t_e_i_l.track_id = ?").bind(params.track);
+
+                if (params.release.isValid())
+                {
+                    query.join("track t ON t_e_i_l.track_id = t.id");
+                    query.where("t.release_id = ?").bind(params.release);
+                }
+
+                if (params.trackList.isValid())
+                {
+                    query.join("tracklist_entry t_l_e ON t_l_e.track_id = t_e_i_l.track_id");
+                    query.where("t_l_e.tracklist_id = ?").bind(params.trackList);
+                }
+            }
+
+            switch (params.sortMethod)
+            {
+            case TrackEmbeddedImageSortMethod::None:
+                break;
+            case TrackEmbeddedImageSortMethod::FrontCoverAndSize:
+                query.orderBy("CASE WHEN t_e_i_l.type = ? THEN 0 ELSE 1 END, t_e_i.size").bind(ImageType::FrontCover);
+                break;
+            }
+
+            return query;
+        }
+    } // namespace
+
+    TrackEmbeddedImage::pointer TrackEmbeddedImage::create(Session& session)
+    {
+        return session.getDboSession()->add(std::unique_ptr<TrackEmbeddedImage>{ new TrackEmbeddedImage{} });
+    }
+
+    std::size_t TrackEmbeddedImage::getCount(Session& session)
+    {
+        session.checkReadTransaction();
+
+        return utils::fetchQuerySingleResult(session.getDboSession()->query<int>("SELECT COUNT(*) FROM track_embedded_image"));
+    }
+
+    TrackEmbeddedImage::pointer TrackEmbeddedImage::find(Session& session, TrackEmbeddedImageId id)
+    {
+        session.checkReadTransaction();
+
+        return utils::fetchQuerySingleResult(session.getDboSession()->find<TrackEmbeddedImage>().where("id = ?").bind(id));
+    }
+
+    void TrackEmbeddedImage::find(Session& session, const FindParameters& params, const std::function<void(const pointer&)>& func)
+    {
+        session.checkReadTransaction();
+
+        auto query{ createQuery(session, params) };
+        utils::forEachQueryRangeResult(query, params.range, func);
+    }
+
+    TrackEmbeddedImage::pointer TrackEmbeddedImage::find(Session& session, std::size_t size, ImageHashType hash)
+    {
+        session.checkReadTransaction();
+
+        auto query{ session.getDboSession()->find<TrackEmbeddedImage>().where("size = ?").bind(static_cast<int>(size)).where("hash = ?").bind(hash) };
+        return utils::fetchQuerySingleResult(query);
+    }
+
+    RangeResults<TrackEmbeddedImageId> TrackEmbeddedImage::findOrphanIds(Session& session, std::optional<Range> range)
+    {
+        session.checkReadTransaction();
+
+        auto query{ session.getDboSession()->query<TrackEmbeddedImageId>("SELECT t_e_i.id FROM track_embedded_image t_e_i LEFT JOIN track_embedded_image_link t_e_i_l ON t_e_i.id = t_e_i_l.track_embedded_image_id WHERE t_e_i_l.track_embedded_image_id IS NULL") };
+        return utils::execRangeQuery<TrackEmbeddedImageId>(query, range);
+    }
+
+} // namespace lms::db