Use Procedure#publish_or_reopen!

app/controllers/admin/procedures_controller.rb

@@ -99,9 +99,7 @@ class Admin::ProceduresController < AdminController
       return redirect_to admin_procedures_path
     end
 
-    if procedure.may_publish?(params[:procedure_path])
-      procedure.publish!(params[:procedure_path])
-
+    if procedure.publish_or_reopen!(params[:procedure_path])
       flash.notice = "Démarche publiée"
       redirect_to admin_procedures_path
     else

app/models/procedure.rb

@@ -84,6 +84,15 @@ class Procedure < ApplicationRecord
     end
   end
 
+  def publish_or_reopen!(path)
+    if archivee? && may_reopen?(path)
+      reopen!(path)
+    elsif may_publish?(path)
+      reset!
+      publish!(path)
+    end
+  end
+
   def publish_with_path!(path)
     procedure_path = ProcedurePath
       .where(administrateur: administrateur)