Add missing events for discourse-hipchat-plugin

https://github.com/binaryage/discourse-hipchat-plugin

app/controllers/topics_controller.rb

@@ -261,6 +261,8 @@ class TopicsController < ApplicationController
     first_post = topic.ordered_posts.first
     PostDestroyer.new(current_user, first_post, { context: params[:context] }).destroy
 
+    DiscourseEvent.trigger(:topic_destroyed, topic, current_user)
+
     render nothing: true
   end
 
@@ -271,6 +273,8 @@ class TopicsController < ApplicationController
     first_post = topic.posts.with_deleted.order(:post_number).first
     PostDestroyer.new(current_user, first_post).recover
 
+    DiscourseEvent.trigger(:topic_recovered, topic, current_user)
+
     render nothing: true
   end
 

lib/post_destroyer.rb

@@ -46,6 +46,7 @@ class PostDestroyer
     elsif @user.id == @post.user_id
       mark_for_deletion
     end
+    DiscourseEvent.trigger(:post_destroyed, @post, @opts, @user)
   end
 
   def recover
@@ -57,6 +58,7 @@ class PostDestroyer
     topic = Topic.with_deleted.find @post.topic_id
     topic.recover! if @post.is_first_post?
     topic.update_statistics
+    DiscourseEvent.trigger(:post_recovered, @post, @opts, @user)
   end
 
   def staff_recovered