FIX: include youtube link in embedded comments

app/controllers/embed_controller.rb

@@ -41,7 +41,7 @@ class EmbedController < ApplicationController
       topic_embeds = TopicEmbed.where(embed_url: urls).includes(:topic).references(:topic)
 
       topic_embeds.each do |te|
-        url = te.embed_url 
+        url = te.embed_url
         url = "#{url}#discourse-comments" unless params[:embed_url].include?(url)
         by_url[url] = I18n.t('embed.replies', count: te.topic.posts_count - 1)
       end

app/helpers/embed_helper.rb

@@ -14,5 +14,14 @@ module EmbedHelper
     end
   end
 
+  def get_html(cooked)
+    fragment = Nokogiri::HTML.fragment(cooked)
+    # convert lazyYT div to link
+    fragment.css('div.lazyYT').each do |yt_div|
+      youtube_id = yt_div["data-youtube-id"]
+      youtube_link = "https://www.youtube.com/watch?v=#{youtube_id}"
+      yt_div.replace "<p><a href='#{youtube_link}'>#{youtube_link}</a></p>"
+    end
+    raw fragment
+  end
 end
-

app/views/embed/comments.html.erb

@@ -25,7 +25,7 @@
             <span class='title'><%= post.user.title %></span>
           <%- end %>
         </h3>
-        <%= raw post.cooked %>
+        <%= get_html(post.cooked) %>
 
         <%- if post.reply_count > 0 %>
           <%- if post.reply_count == 1 %>
@@ -51,4 +51,3 @@
   <% end %>
 
 <% end %>
-