FIX: Make Discobot image tutorial accept URL that points to images.

plugins/discourse-narrative-bot/lib/discourse_narrative_bot/new_user_narrative.rb

@@ -302,7 +302,6 @@ module DiscourseNarrativeBot
       post_topic_id = @post.topic_id
       return unless valid_topic?(post_topic_id)
 
-      @post.post_analyzer.cook(@post.raw, {})
       transition = true
       attempted_count = get_state_data(:attempted) || 0
 
@@ -313,7 +312,9 @@ module DiscourseNarrativeBot
         @data[:skip_attempted] = false
       end
 
-      if @post.post_analyzer.image_count > 0
+      cooked = @post.post_analyzer.cook(@post.raw, {})
+
+      if Nokogiri::HTML.fragment(cooked).css("img").size > 0
         set_state_data(:post_id, @post.id)
 
         if get_state_data(:liked)

plugins/discourse-narrative-bot/spec/discourse_narrative_bot/new_user_narrative_spec.rb

@@ -434,12 +434,19 @@ describe DiscourseNarrativeBot::NewUserNarrative do
 
           described_class.any_instance.expects(:enqueue_timeout_job).with(user)
 
+          url = "https://i.ytimg.com/vi/tntOCGkgt98/maxresdefault.jpg"
+
+          stub_request(:head, url).to_return(
+            status: 200, body: file_from_fixtures("smallest.png").read
+          )
+
           new_post = Fabricate(:post,
             user: user,
             topic: topic,
-            raw: "<img src='https://i.ytimg.com/vi/tntOCGkgt98/maxresdefault.jpg'>"
+            raw: url
           )
 
+          CookedPostProcessor.new(new_post).post_process
           DiscourseNarrativeBot::TrackSelector.new(:reply, user, post_id: new_post.id).select
 
           expected_raw = <<~RAW