Centralized artwork lookup logic

src/libs/database/impl/Artist.cpp

@@ -320,6 +320,11 @@ AND NOT EXISTS (
         return ObjectPtr<Image>{ _image };
     }
 
+    ImageId Artist::getImageId() const
+    {
+        return _image.id();
+    }
+
     RangeResults<ArtistId> Artist::findSimilarArtistIds(core::EnumSet<TrackArtistLinkType> artistLinkTypes, std::optional<Range> range) const
     {
         assert(session());

src/libs/database/impl/Release.cpp

@@ -706,6 +706,11 @@ namespace lms::db
         return ObjectPtr<Image>{ _image };
     }
 
+    ImageId Release::getImageId() const
+    {
+        return _image.id();
+    }
+
     void Release::clearLabels()
     {
         _labels.clear();

src/libs/database/include/database/Artist.hpp

@@ -33,6 +33,7 @@
 #include "database/ArtistId.hpp"
 #include "database/ClusterId.hpp"
 #include "database/Filters.hpp"
+#include "database/ImageId.hpp"
 #include "database/MediaLibraryId.hpp"
 #include "database/Object.hpp"
 #include "database/ReleaseId.hpp"
@@ -137,6 +138,7 @@ namespace lms::db
         std::optional<core::UUID> getMBID() const;
         bool hasMBID() const;
         ObjectPtr<Image> getImage() const;
+        ImageId getImageId() const;
         void visitLinks(std::function<void(const ObjectPtr<TrackArtistLink>& link)> visitor) const;
 
         // No artistLinkTypes means get them all

src/libs/database/include/database/Release.hpp

@@ -34,6 +34,7 @@
 #include "database/CountryId.hpp"
 #include "database/DirectoryId.hpp"
 #include "database/Filters.hpp"
+#include "database/ImageId.hpp"
 #include "database/LabelId.hpp"
 #include "database/MediaLibraryId.hpp"
 #include "database/Object.hpp"
@@ -292,6 +293,7 @@ namespace lms::db
         std::string_view getBarcode() const { return _barcode; }
         std::string_view getComment() const { return _comment; }
         ObjectPtr<Image> getImage() const;
+        ImageId getImageId() const;
 
         // Setters
         void setName(std::string_view name) { _name = name; }

src/libs/services/artwork/impl/ArtworkService.cpp

@@ -25,10 +25,13 @@
 #include "core/IConfig.hpp"
 #include "core/ILogger.hpp"
 #include "core/Utils.hpp"
+#include "database/Artist.hpp"
 #include "database/Db.hpp"
 #include "database/Image.hpp"
+#include "database/Release.hpp"
 #include "database/Session.hpp"
 #include "database/Track.hpp"
+#include "database/TrackEmbeddedImage.hpp"
 #include "image/Exception.hpp"
 #include "image/IEncodedImage.hpp"
 #include "image/Image.hpp"
@@ -178,6 +181,85 @@ namespace lms::cover
         return {};
     }
 
+    ArtworkService::ImageFindResult ArtworkService::findArtistImage(db::ArtistId artistId)
+    {
+        db::Session& session{ _db.getTLSSession() };
+        auto transaction{ session.createReadTransaction() };
+
+        ImageFindResult res;
+
+        if (const db::Artist::pointer artist{ db::Artist::find(session, artistId) })
+        {
+            if (const db::ImageId imageId{ artist->getImageId() }; imageId.isValid())
+                res = imageId;
+
+            // TODO fallback on first release?
+        }
+
+        return res;
+    }
+
+    ArtworkService::ImageFindResult ArtworkService::findPreferredTrackImage(db::TrackId trackId)
+    {
+        db::Session& session{ _db.getTLSSession() };
+        auto transaction{ session.createReadTransaction() };
+        ImageFindResult res;
+
+        db::TrackEmbeddedImage::FindParameters params;
+        params.setTrack(trackId);
+        params.setIsPreferred(true);
+        params.setRange(db::Range{ .offset = 0, .size = 1 });
+
+        db::TrackEmbeddedImage::find(session, params, [&](const db::TrackEmbeddedImage::pointer& image) {
+            res = image->getId();
+        });
+
+        if (res.index() == 0)
+        {
+            if (db::Track::pointer track{ db::Track::find(session, trackId) })
+            {
+                if (const db::Release::pointer release{ track->getRelease() })
+                {
+                    if (const db::ImageId imageId{ release->getImageId() }; imageId.isValid())
+                        res = imageId;
+                }
+            }
+        }
+
+        return res;
+    }
+
+    ArtworkService::ImageFindResult ArtworkService::findReleaseImage(db::ReleaseId releaseId)
+    {
+        db::Session& session{ _db.getTLSSession() };
+        auto transaction{ session.createReadTransaction() };
+
+        ImageFindResult res;
+
+        const db::Release::pointer release{ db::Release::find(session, releaseId) };
+        if (release)
+        {
+            if (const db::ImageId imageId{ release->getImageId() }; imageId.isValid())
+            {
+                res = imageId;
+            }
+            else
+            {
+                db::TrackEmbeddedImage::FindParameters params;
+                params.setRelease(releaseId);
+                params.setIsPreferred(true);
+                params.setSortMethod(db::TrackEmbeddedImageSortMethod::FrontCoverAndSize);
+                params.setRange(db::Range{ .offset = 0, .size = 1 });
+
+                db::TrackEmbeddedImage::find(session, params, [&](const db::TrackEmbeddedImage::pointer& image) {
+                    res = image->getId();
+                });
+            }
+        }
+
+        return res;
+    }
+
     std::shared_ptr<image::IEncodedImage> ArtworkService::getImage(db::ImageId imageId, std::optional<image::ImageSize> width)
     {
         const ImageCache::EntryDesc cacheEntryDesc{ imageId, width };

src/libs/services/artwork/impl/ArtworkService.hpp

@@ -47,6 +47,10 @@ namespace lms::cover
         ArtworkService& operator=(const ArtworkService&) = delete;
 
     private:
+        ImageFindResult findArtistImage(db::ArtistId artistId) override;
+        ImageFindResult findPreferredTrackImage(db::TrackId trackId) override;
+        ImageFindResult findReleaseImage(db::ReleaseId releaseId) override;
+
         std::shared_ptr<image::IEncodedImage> getImage(db::ImageId imageId, std::optional<image::ImageSize> width) override;
         std::shared_ptr<image::IEncodedImage> getTrackEmbeddedImage(db::TrackEmbeddedImageId trackEmbeddedImageId, std::optional<image::ImageSize> width) override;
 

src/libs/services/artwork/include/services/artwork/IArtworkService.hpp

@@ -22,9 +22,13 @@
 #include <filesystem>
 #include <memory>
 #include <optional>
+#include <variant>
 
+#include "database/ArtistId.hpp"
 #include "database/ImageId.hpp"
+#include "database/ReleaseId.hpp"
 #include "database/TrackEmbeddedImageId.hpp"
+#include "database/TrackId.hpp"
 #include "image/IEncodedImage.hpp"
 
 namespace lms::db
@@ -39,6 +43,13 @@ namespace lms::cover
     public:
         virtual ~IArtworkService() = default;
 
+        // Helpers to find artworks
+        using ImageFindResult = std::variant<std::monostate, db::ImageId, db::TrackEmbeddedImageId>;
+        virtual ImageFindResult findArtistImage(db::ArtistId artistId) = 0;
+        virtual ImageFindResult findPreferredTrackImage(db::TrackId trackId) = 0;
+        virtual ImageFindResult findReleaseImage(db::ReleaseId releaseId) = 0;
+
+        // Image retrieval
         virtual std::shared_ptr<image::IEncodedImage> getImage(db::ImageId imageId, std::optional<image::ImageSize> width) = 0;
         virtual std::shared_ptr<image::IEncodedImage> getTrackEmbeddedImage(db::TrackEmbeddedImageId trackEmbeddedImageId, std::optional<image::ImageSize> width) = 0;
 

src/libs/subsonic/impl/responses/Album.cpp

@@ -28,9 +28,9 @@
 #include "database/Image.hpp"
 #include "database/Release.hpp"
 #include "database/Track.hpp"
-#include "database/TrackEmbeddedImage.hpp"
 #include "database/Types.hpp"
 #include "database/User.hpp"
+#include "services/artwork/IArtworkService.hpp"
 #include "services/feedback/IFeedbackService.hpp"
 #include "services/scrobbling/IScrobblingService.hpp"
 
@@ -87,23 +87,19 @@ namespace lms::api::subsonic
         }
 
         albumNode.setAttribute("created", core::stringUtils::toISO8601String(release->getAddedTime()));
-        if (const auto image{ release->getImage() })
-        {
-            const CoverArtId coverArtId{ image->getId(), image->getLastWriteTime().toTime_t() };
-            albumNode.setAttribute("coverArt", idToString(coverArtId));
-        }
-        else
-        {
-            db::TrackEmbeddedImage::FindParameters params;
-            params.setRelease(release->getId());
-            params.setIsPreferred(true);
-            params.setSortMethod(db::TrackEmbeddedImageSortMethod::FrontCoverAndSize);
-            params.setRange(db::Range{ 0, 1 });
 
-            db::TrackEmbeddedImage::find(context.dbSession, params, [&](const db::TrackEmbeddedImage::pointer& image) {
-                const CoverArtId coverArtId{ image->getId() };
-                albumNode.setAttribute("coverArt", idToString(coverArtId));
-            });
+        {
+            const auto imageResult{ core::Service<cover::IArtworkService>::get()->findReleaseImage(release->getId()) };
+            if (const db::ImageId * imageId{ std::get_if<db::ImageId>(&imageResult) })
+            {
+                if (const db::Image::pointer image{ db::Image::find(context.dbSession, *imageId) })
+                {
+                    const CoverArtId coverArtId{ *imageId, image->getLastWriteTime().toTime_t() };
+                    albumNode.setAttribute("coverArt", idToString(coverArtId));
+                }
+            }
+            else if (const db::TrackEmbeddedImageId * embeddedImageId{ std::get_if<db::TrackEmbeddedImageId>(&imageResult) })
+                albumNode.setAttribute("coverArt", idToString(*embeddedImageId));
         }
         if (const auto originalYear{ release->getOriginalYear() })
             albumNode.setAttribute("year", *originalYear);

src/libs/subsonic/impl/responses/Artist.cpp

@@ -27,6 +27,7 @@
 #include "database/Release.hpp"
 #include "database/TrackArtistLink.hpp"
 #include "database/User.hpp"
+#include "services/artwork/IArtworkService.hpp"
 #include "services/feedback/IFeedbackService.hpp"
 
 #include "CoverArtId.hpp"
@@ -95,10 +96,18 @@ namespace lms::api::subsonic
 
         artistNode.setAttribute("id", idToString(artist->getId()));
         artistNode.setAttribute("name", artist->getName());
-        if (const auto image{ artist->getImage() })
         {
-            const CoverArtId coverArtId{ image->getId(), image->getLastWriteTime().toTime_t() };
-            artistNode.setAttribute("coverArt", idToString(coverArtId));
+            const auto imageResult{ core::Service<cover::IArtworkService>::get()->findArtistImage(artist->getId()) };
+            if (const db::ImageId * imageId{ std::get_if<db::ImageId>(&imageResult) })
+            {
+                if (const db::Image::pointer image{ db::Image::find(context.dbSession, *imageId) })
+                {
+                    const CoverArtId coverArtId{ *imageId, image->getLastWriteTime().toTime_t() };
+                    artistNode.setAttribute("coverArt", idToString(coverArtId));
+                }
+            }
+            else if (const db::TrackEmbeddedImageId * embeddedImageId{ std::get_if<db::TrackEmbeddedImageId>(&imageResult) })
+                artistNode.setAttribute("coverArt", idToString(*embeddedImageId));
         }
 
         const std::size_t count{ Release::getCount(context.dbSession, Release::FindParameters{}.setArtist(artist->getId())) };

src/libs/subsonic/impl/responses/Song.cpp

@@ -33,9 +33,9 @@
 #include "database/Release.hpp"
 #include "database/Track.hpp"
 #include "database/TrackArtistLink.hpp"
-#include "database/TrackEmbeddedImage.hpp"
 #include "database/Types.hpp"
 #include "database/User.hpp"
+#include "services/artwork/IArtworkService.hpp"
 #include "services/feedback/IFeedbackService.hpp"
 #include "services/scrobbling/IScrobblingService.hpp"
 
@@ -111,28 +111,18 @@ namespace lms::api::subsonic
             trackResponse.setAttribute("transcodedContentType", core::getMimeType(std::filesystem::path{ "." + fileSuffix }));
         }
 
-        const Release::pointer release{ track->getRelease() };
-
         {
-            TrackEmbeddedImage::FindParameters params;
-            params.setTrack(track->getId());
-            params.setIsPreferred(true);
-            params.setRange(Range{ .offset = 0, .size = 1 });
-
-            bool hasEmbeddedImage{};
-            TrackEmbeddedImage::find(context.dbSession, params, [&](const TrackEmbeddedImage::pointer& image) {
-                const CoverArtId coverArtId{ image->getId() };
-                trackResponse.setAttribute("coverArt", idToString(coverArtId));
-            });
-
-            if (!hasEmbeddedImage && release)
+            const auto imageResult{ core::Service<cover::IArtworkService>::get()->findPreferredTrackImage(track->getId()) };
+            if (const db::ImageId * imageId{ std::get_if<db::ImageId>(&imageResult) })
             {
-                if (const db::Image::pointer image{ release->getImage() })
+                if (const db::Image::pointer image{ db::Image::find(context.dbSession, *imageId) })
                 {
-                    const CoverArtId coverArtId{ image->getId(), image->getLastWriteTime().toTime_t() };
+                    const CoverArtId coverArtId{ *imageId, image->getLastWriteTime().toTime_t() };
                     trackResponse.setAttribute("coverArt", idToString(coverArtId));
                 }
             }
+            else if (const db::TrackEmbeddedImageId * embeddedImageId{ std::get_if<db::TrackEmbeddedImageId>(&imageResult) })
+                trackResponse.setAttribute("coverArt", idToString(*embeddedImageId));
         }
 
         const std::vector<Artist::pointer>& artists{ track->getArtists({ TrackArtistLinkType::Artist }) };
@@ -147,6 +137,7 @@ namespace lms::api::subsonic
                 trackResponse.setAttribute("artistId", idToString(artists.front()->getId()));
         }
 
+        const Release::pointer release{ track->getRelease() };
         if (release)
         {
             trackResponse.setAttribute("album", release->getName());

src/lms/ui/resource/ArtworkResource.cpp

@@ -26,13 +26,6 @@
 #include "core/ITraceLogger.hpp"
 #include "core/Service.hpp"
 #include "core/String.hpp"
-#include "database/Artist.hpp"
-#include "database/Image.hpp"
-#include "database/Release.hpp"
-#include "database/Session.hpp"
-#include "database/Track.hpp"
-#include "database/TrackEmbeddedImage.hpp"
-#include "database/Types.hpp"
 #include "services/artwork/IArtworkService.hpp"
 
 #include "LmsApplication.hpp"
@@ -58,19 +51,15 @@ namespace lms::ui
     {
         std::string url;
 
-        {
-            auto transaction{ LmsApp->getDbSession().createReadTransaction() };
-
-            const db::Artist::pointer artist{ db::Artist::find(LmsApp->getDbSession(), artistId) };
-            if (artist)
-            {
-                if (const db::Image::pointer image{ artist->getImage() })
-                    url = getImageUrl(image->getId(), size, "artist");
-            }
-        }
-
-        if (url.empty())
-            url = getDefaultArtistImageUrl();
+        const auto imageResult{ core::Service<cover::IArtworkService>::get()->findArtistImage(artistId) };
+        std::visit([&](const auto& arg) {
+            using T = std::decay_t<decltype(arg)>;
+            if constexpr (std::is_same_v<T, std::monostate>)
+                url = getDefaultArtistImageUrl();
+            else
+                url = getImageUrl(arg, size, "artist");
+        },
+            imageResult);
 
         return url;
     }
@@ -79,33 +68,15 @@ namespace lms::ui
     {
         std::string url;
 
-        {
-            auto transaction{ LmsApp->getDbSession().createReadTransaction() };
-
-            const db::Release::pointer release{ db::Release::find(LmsApp->getDbSession(), releaseId) };
-            if (release)
-            {
-                if (const db::Image::pointer image{ release->getImage() })
-                {
-                    url = getImageUrl(image->getId(), size, "release");
-                }
-                else
-                {
-                    db::TrackEmbeddedImage::FindParameters params;
-                    params.setRelease(releaseId);
-                    params.setIsPreferred(true);
-                    params.setSortMethod(db::TrackEmbeddedImageSortMethod::FrontCoverAndSize);
-                    params.setRange(db::Range{ 0, 1 });
-
-                    db::TrackEmbeddedImage::find(LmsApp->getDbSession(), params, [&](const db::TrackEmbeddedImage::pointer& image) {
-                        url = getImageUrl(image->getId(), size, "release");
-                    });
-                }
-            }
-        }
-
-        if (url.empty())
-            url = getDefaultReleaseCoverUrl();
+        const auto imageResult{ core::Service<cover::IArtworkService>::get()->findReleaseImage(releaseId) };
+        std::visit([&](const auto& arg) {
+            using T = std::decay_t<decltype(arg)>;
+            if constexpr (std::is_same_v<T, std::monostate>)
+                url = getDefaultReleaseCoverUrl();
+            else
+                url = getImageUrl(arg, size, "release");
+        },
+            imageResult);
 
         return url;
     }
@@ -114,34 +85,15 @@ namespace lms::ui
     {
         std::string url;
 
-        {
-            auto transaction{ LmsApp->getDbSession().createReadTransaction() };
-
-            db::TrackEmbeddedImage::FindParameters params;
-            params.setTrack(trackId);
-            params.setIsPreferred(true);
-            params.setRange(db::Range{ .offset = 0, .size = 1 });
-
-            db::TrackEmbeddedImage::find(LmsApp->getDbSession(), params, [&](const db::TrackEmbeddedImage::pointer& image) {
-                url = getImageUrl(image->getId(), size, "release");
-            });
-
-            if (url.empty())
-            {
-                db::Track::pointer track{ db::Track::find(LmsApp->getDbSession(), trackId) };
-                if (track)
-                {
-                    if (const db::Release::pointer release{ track->getRelease() })
-                    {
-                        if (const db::Image::pointer image{ release->getImage() })
-                            url = getImageUrl(image->getId(), size, "release");
-                    }
-                }
-            }
-        }
-
-        if (url.empty())
-            url = getDefaultReleaseCoverUrl();
+        const auto imageResult{ core::Service<cover::IArtworkService>::get()->findPreferredTrackImage(trackId) };
+        std::visit([&](const auto& arg) {
+            using T = std::decay_t<decltype(arg)>;
+            if constexpr (std::is_same_v<T, std::monostate>)
+                url = getDefaultReleaseCoverUrl();
+            else
+                url = getImageUrl(arg, size, "release");
+        },
+            imageResult);
 
         return url;
     }
@@ -155,9 +107,9 @@ namespace lms::ui
         return res;
     }
 
-    std::string ArtworkResource::getImageUrl(db::TrackEmbeddedImageId trackId, std::optional<Size> size, std::string_view type) const
+    std::string ArtworkResource::getImageUrl(db::TrackEmbeddedImageId trackEmbeddedImageId, std::optional<Size> size, std::string_view type) const
     {
-        std::string res{ url() + "&trimageid=" + trackId.toString() + "&type=" + std::string{ type } };
+        std::string res{ url() + "&trimageid=" + trackEmbeddedImageId.toString() + "&type=" + std::string{ type } };
         if (size)
             res += "&size=" + std::to_string(static_cast<std::size_t>(*size));
         return res;