split media service read paths

internal/service/media_library.go

@@ -0,0 +1,43 @@
+package service
+
+import (
+	"context"
+
+	"github.com/ShukeBta/MediaStationGo/internal/model"
+)
+
+// ListLibraries returns every library configured on the server.
+func (s *MediaService) ListLibraries(ctx context.Context) ([]model.Library, error) {
+	return s.repo.Library.List(ctx)
+}
+
+// DeleteLibrary removes a library and its media rows. The on-disk files are
+// left untouched.
+func (s *MediaService) DeleteLibrary(ctx context.Context, id string) error {
+	lib, err := s.repo.Library.FindByID(ctx, id)
+	if err != nil {
+		return err
+	}
+	if lib != nil {
+		if _, ok := ParseCloudLibraryMount(lib.Path); ok {
+			if err := s.repo.Media.PurgeByLibrary(ctx, id); err != nil {
+				return err
+			}
+			_ = s.repo.DB.WithContext(ctx).Where("library_id = ?", id).Delete(&model.LibraryRoot{}).Error
+			err := s.repo.DB.WithContext(ctx).Unscoped().Where("id = ?", id).Delete(&model.Library{}).Error
+			if err == nil {
+				s.invalidateMediaCache(ctx)
+			}
+			return err
+		}
+	}
+	_ = s.repo.DB.WithContext(ctx).Where("library_id = ?", id).Delete(&model.LibraryRoot{}).Error
+	if err := s.repo.Media.DeleteByLibrary(ctx, id); err != nil {
+		return err
+	}
+	err = s.repo.Library.Delete(ctx, id)
+	if err == nil {
+		s.invalidateMediaCache(ctx)
+	}
+	return err
+}