Created an interface for the Db class

src/libs/services/recommendation/impl/clusters/ClustersEngine.cpp

@@ -21,7 +21,7 @@
 
 #include "database/Artist.hpp"
 #include "database/Cluster.hpp"
-#include "database/Db.hpp"
+#include "database/IDb.hpp"
 #include "database/Release.hpp"
 #include "database/Session.hpp"
 #include "database/Track.hpp"
@@ -29,10 +29,9 @@
 
 namespace lms::recommendation
 {
-
     using namespace db;
 
-    std::unique_ptr<IEngine> createClustersEngine(Db& db)
+    std::unique_ptr<IEngine> createClustersEngine(db::IDb& db)
     {
         return std::make_unique<ClusterEngine>(db);
     }

src/libs/services/recommendation/impl/clusters/ClustersEngine.hpp

@@ -27,7 +27,7 @@ namespace lms::recommendation
     class ClusterEngine : public IEngine
     {
     public:
-        ClusterEngine(db::Db& db)
+        ClusterEngine(db::IDb& db)
             : _db{ db } {}
 
         ~ClusterEngine() override = default;
@@ -45,7 +45,7 @@ namespace lms::recommendation
         ReleaseContainer getSimilarReleases(db::ReleaseId releaseId, std::size_t maxCount) const override;
         ArtistContainer getSimilarArtists(db::ArtistId artistId, core::EnumSet<db::TrackArtistLinkType> linkTypes, std::size_t maxCount) const override;
 
-        db::Db& _db;
+        db::IDb& _db;
     };
 
 } // namespace lms::recommendation