Add optional post count parameter to forum search queries

Author: merefield

config/locales/server.en.yml

@@ -74,12 +74,13 @@ en:
             Search the local forum for information that may help you answer the question.  Especially useful when the forum specialises in the subject matter of the query.
             Searching the local forum is preferable to searching google or the internet and should be considered higher priority.  It is quicker and cheaper.
 
-            Input should be a search query.
+            Input should be a search query.  You can optionally also specify the number of posts you wish returned from your query.
 
-            Outputs text from the Post and a url link to it you can provide the user.
+            Outputs text from the Post and a url link to it you can provide the user.  When presenting the url in your reply, do not embed in an anchor, just write the straight link.
           parameters:
             query: "search query for looking up information on the forum"
-          answer_summary: "The top three posts on the forum related to this query are, best match first:\n\n"
+            number_of_posts: "specify the number of posts you want returned from your query"
+          answer_summary: "The top %{number_of_posts} posts on the forum related to this query are, best match first:\n\n"
           answer: "Number %{rank}: the post is at this web address: %{url}, it was written by '%{username}' on %{date} and the text is '%{raw}'.\n\n"
           error:  "'%{query}': my search for this on the forum failed."
         google_search:

lib/discourse_chatbot/functions/forum_search_function.rb

@@ -16,6 +16,7 @@ def description
     def parameters
       [
         { name: "query", type: String, description: I18n.t("chatbot.prompt.function.forum_search.parameters.query") } ,
+        { name: "number_of_posts", type: Integer, description: I18n.t("chatbot.prompt.function.stock_data.parameters.number_of_posts") }
       ]
     end
 
@@ -27,17 +28,19 @@ def process(args)
       begin
         super(args)
         query = args[parameters[0][:name]]
+        number_of_posts = args[parameters[1][:name]].blank? ? 3 : args[parameters[1][:name]]
+        number_of_posts = number_of_posts > 10 ? 10 : number_of_posts
 
         post_embedding = ::DiscourseChatbot::PostEmbeddingProcess.new
         results = post_embedding.semantic_search(query)
 
-        top_results = results[0..2]
+        top_results = results[0..(number_of_posts - 1)]
 
-        response = I18n.t("chatbot.prompt.function.forum_search.answer_summary")
+        response = I18n.t("chatbot.prompt.function.forum_search.answer_summary", number_of_posts: number_of_posts)
 
         top_results.each_with_index do |result, index|
           current_post = ::Post.find(result.to_i)
-          url = "#{Discourse.current_hostname}/t/slug/#{current_post.topic_id}/#{current_post.post_number}"
+          url = "https://#{Discourse.current_hostname}/t/slug/#{current_post.topic_id}/#{current_post.post_number}"
           raw = current_post.raw
           username = User.find(current_post.user_id).username
           date = current_post.created_at.to_date

lib/discourse_chatbot/post_embedding_process.rb

@@ -61,7 +61,7 @@ def semantic_search(query)
 
        begin
          search_result_post_ids =
-           DB.query(<<~SQL, query_embedding: query_vector, limit: 8).map(
+           DB.query(<<~SQL, query_embedding: query_vector, limit: 10).map(
               SELECT
                 post_id
               FROM