pad file name with creation date

During zip creation, when 2 files have an identical name it creates a corrupted zip file
Duplicate files can now be downloaded with all the versions, the file names contain a timestamp

app/lib/active_storage/downloadable_file.rb

@@ -16,13 +16,21 @@ class ActiveStorage::DownloadableFile
     pjs.map do |piece_justificative|
       [
         piece_justificative,
-        piece_justificative.filename.to_s
+        self.timestamped_filename(piece_justificative)
       ]
     end
   end
 
   private
 
+  def self.timestamped_filename(piece_justificative)
+    extension = File.extname(piece_justificative.filename.to_s)
+    basename = File.basename(piece_justificative.filename.to_s, extension)
+    timestamp = piece_justificative.created_at.strftime("%d-%m-%Y-%H-%S")
+
+    "#{basename}-#{timestamp}#{extension}"
+  end
+
   def using_local_backend?
     [:local, :local_test, :test].include?(Rails.application.config.active_storage.service)
   end