Add multiple genres to MediaFile

scanner/metadata/metadata.go

@@ -13,7 +13,6 @@ import (
 	"github.com/google/uuid"
 	"github.com/navidrome/navidrome/conf"
 	"github.com/navidrome/navidrome/log"
-	"github.com/navidrome/navidrome/utils"
 )
 
 type Extractor interface {
@@ -138,7 +137,7 @@ func (t *Tags) getAllTagValues(tagNames ...string) []string {
 			values = append(values, v...)
 		}
 	}
-	return utils.UniqueStrings(values)
+	return values
 }
 
 func (t *Tags) getSortTag(originalTag string, tagNamess ...string) string {

scanner/metadata/metadata_test.go

@@ -66,7 +66,7 @@ var _ = Describe("Tags", func() {
 			md := &Tags{}
 			md.tags = map[string][]string{
 				"genre":  {"Rock", "Pop"},
-				"_genre": {"New Wave", "Rock"},
+				"_genre": {"New Wave"},
 			}
 			md.custom = map[string][]string{"genre": {"_genre"}}
 

scanner/metadata/taglib_test.go

@@ -19,7 +19,7 @@ var _ = Describe("taglibExtractor", func() {
 			Expect(m.Artist()).To(Equal("Artist"))
 			Expect(m.AlbumArtist()).To(Equal("Album Artist"))
 			Expect(m.Compilation()).To(BeTrue())
-			Expect(m.Genres()).To(ConsistOf("Rock"))
+			Expect(m.Genres()).To(ConsistOf("Rock", "Rock"))
 			Expect(m.Year()).To(Equal(2014))
 			n, t := m.TrackNumber()
 			Expect(n).To(Equal(2))