Introduced interfaces for all repositories, completely isolating the persistence layer from the repositories usage and specification

domain/media_file.go

@@ -15,4 +15,9 @@ type MediaFile struct {
 	Compilation bool
 	CreatedAt   time.Time
 	UpdatedAt   time.Time
+}
+
+type MediaFileRepository interface {
+	BaseRepository
+	Put(m *MediaFile) error
 }