FIX: Only show public visible topics as suggested for anons (#27)

* FIX: Only show public visible topics as suggested for anons

* DEV: Add tests for embeddings

* Update spec/lib/modules/embeddings/semantic_suggested_spec.rb

Co-authored-by: Bianca Nenciu <nbianca@users.noreply.github.com>

* Update spec/lib/modules/embeddings/semantic_suggested_spec.rb

Co-authored-by: Bianca Nenciu <nbianca@users.noreply.github.com>

* move to top

---------

Co-authored-by: Bianca Nenciu <nbianca@users.noreply.github.com>

lib/modules/embeddings/semantic_suggested.rb

@@ -33,7 +33,12 @@ module DiscourseAi
 
         # array_position forces the order of the topics to be preserved
         candidates =
-          ::Topic.where(id: candidate_ids).order("array_position(ARRAY#{candidate_ids}, id)")
+          ::Topic
+            .visible
+            .listable_topics
+            .secured
+            .where(id: candidate_ids)
+            .order("array_position(ARRAY#{candidate_ids}, id)")
 
         { result: candidates, params: {} }
       end

spec/lib/modules/embeddings/entry_point_spec.rb

@@ -0,0 +1,31 @@
+# frozen_string_literal: true
+
+require "rails_helper"
+
+describe DiscourseAi::Embeddings::EntryPoint do
+  fab!(:user) { Fabricate(:user) }
+
+  describe "registering event callbacks" do
+    context "when creating a topic" do
+      let(:creator) do
+        PostCreator.new(
+          user,
+          raw: "this is the new content for my topic",
+          title: "this is my new topic title",
+        )
+      end
+
+      it "queues a job on create if embeddings is enabled" do
+        SiteSetting.ai_embeddings_enabled = true
+
+        expect { creator.create }.to change(Jobs::GenerateEmbeddings.jobs, :size).by(1)
+      end
+
+      it "does nothing if sentiment analysis is disabled" do
+        SiteSetting.ai_embeddings_enabled = false
+
+        expect { creator.create }.not_to change(Jobs::GenerateEmbeddings.jobs, :size)
+      end
+    end
+  end
+end

spec/lib/modules/embeddings/semantic_suggested_spec.rb

@@ -0,0 +1,38 @@
+# frozen_string_literal: true
+
+require "rails_helper"
+
+describe DiscourseAi::Embeddings::SemanticSuggested do
+  fab!(:target) { Fabricate(:topic) }
+  fab!(:normal_topic_1) { Fabricate(:topic) }
+  fab!(:normal_topic_2) { Fabricate(:topic) }
+  fab!(:normal_topic_3) { Fabricate(:topic) }
+  fab!(:unlisted_topic) { Fabricate(:topic, visible: false) }
+  fab!(:private_topic) { Fabricate(:private_message_topic) }
+  fab!(:secured_category) { Fabricate(:category, read_restricted: true) }
+  fab!(:secured_category_topic) { Fabricate(:topic, category: secured_category) }
+
+  before { SiteSetting.ai_embeddings_semantic_suggested_topics_anons_enabled = true }
+
+  describe "#build_suggested_topics" do
+    before do
+      Discourse.cache.clear
+      described_class.stubs(:search_suggestions).returns(
+        Topic.unscoped.order(id: :desc).limit(10).pluck(:id),
+      )
+    end
+
+    after { Discourse.cache.clear }
+
+    it "returns the suggested topics without non public topics" do
+      suggested = described_class.build_suggested_topics(target, {}, TopicQuery.new(nil))
+      suggested_results = suggested[:result]
+      expect(suggested_results).to include(normal_topic_1)
+      expect(suggested_results).to include(normal_topic_2)
+      expect(suggested_results).to include(normal_topic_3)
+      expect(suggested_results).to_not include(unlisted_topic)
+      expect(suggested_results).to_not include(private_topic)
+      expect(suggested_results).to_not include(secured_category_topic)
+    end
+  end
+end