v0.23 Corner case for duplicate topic name/title, not allowed in Discourse

gossamer_forums.rb

@@ -1,5 +1,5 @@
 # gossamer threads migration-import code
-# v0.22.3
+# v0.23
 
 require 'mysql2'
 require 'open-uri'
@@ -306,6 +306,18 @@ class GossamerForumsImporter < ImportScripts::Base
     email
   end
 
+  def generate_unique_title(base_title, user_id, timestamp)
+    unique_title = base_title
+    suffix = 1
+  
+    while Topic.exists?(title: unique_title)
+      unique_title = "#{base_title} (#{suffix})"
+      suffix += 1
+    end
+  
+    unique_title
+  end
+
   # Helper method to download an attachment / image from a URL
   def download_attachment(url)
     begin
@@ -788,7 +800,6 @@ class GossamerForumsImporter < ImportScripts::Base
 #    topic_post_numbers = Hash.new { |hash, key| hash[key] = 0 }
 
     # Fetch the highest old_post_id from the url_map table
-# FIX THIS PROPERLY
     highest_old_post_id = fetch_highest_old_post_id.to_i
     puts "Highest (OP) old_post_id in url_map: #{highest_old_post_id}"
     highest_processed_post_id = fetch_highest_processed_post_id.to_i
@@ -826,9 +837,10 @@ class GossamerForumsImporter < ImportScripts::Base
           # Create the topic
           begin
             puts "#2"
-            puts "CREATE TOPIC  title #{title}  discourse_user_id #{discourse_user_id}  category_id #{discourse_category_id}"
+            unique_title = generate_unique_title(title, discourse_user_id, Time.at(row['post_time']))
+            puts "CREATE TOPIC  unique_title #{unique_title}  title #{title}  discourse_user_id #{discourse_user_id}  category_id #{discourse_category_id}"
             topic = Topic.create!(
-              title: title,
+              title: unique_title,
               user_id: discourse_user_id,
               created_at: Time.at(row['post_time']),
               updated_at: Time.at(row['post_time']),
@@ -898,7 +910,7 @@ class GossamerForumsImporter < ImportScripts::Base
             # Create URL mappings
 #            old_url = "https://old/forum/#{row['forum_name']}/topics/#{row['post_id']}"
             new_url = "https://new/t/#{topic.slug}/#{topic.id}"
-            insert_url_mapping(row['post_id'], new_url, title)
+            insert_url_mapping(row['post_id'], new_url, unique_title)
 
             # Update the highest processed post_id
             puts "Updated highest processed post_id #{post_id}"