refactoring to please rubocop

lib/concepts/project/operations/create_remix.rb

@@ -33,16 +33,13 @@ def remix_project(response, params, user_id, original_project, remix_origin)
       def create_remix(original_project, params, user_id, remix_origin)
         remix = format_project(original_project, params, user_id, remix_origin)
 
-        original_project.images.each do |image|
-          remix.images.attach(image.blob)
-        end
         params[:image_list].each do |image|
-          remix.images.attach(io: StringIO.new(Base64.decode64(image[:content])), filename: image[:filename]) if image[:content].present?
-        end
-
-        original_project.images.each do |image|
-          existing_image = remix.images.find { |img| img.filename.to_s == image.filename.to_s }
-          remix.images.attach(image.blob) unless existing_image
+          if image[:content].present?
+            remix.images.attach(io: extract_image_io(image), filename: image[:filename])
+          else
+            existing_image = find_existing_image(image, original_project)
+            remix.images.attach(existing_image.blob) if existing_image
+          end
         end
 
         original_project.videos.each do |video|
@@ -71,6 +68,14 @@ def format_project(original_project, params, user_id, remix_origin)
           proj.lesson_id = nil # Only the original can have a lesson id
         end
       end
+
+      def extract_image_io(image)
+        StringIO.new(Base64.decode64(image[:content]))
+      end
+
+      def find_existing_image(image, original_project)
+        original_project.images.find { |img| img.filename.to_s == image[:filename].to_s }
+      end
     end
   end
 end