[Feature] Website live chat (#187)

Co-authored-by: Nithin David Thomas <webofnithin@gmail.com>
Co-authored-by: Sojan Jose <sojan@pepalo.com>

app/finders/message_finder.rb

@@ -10,11 +10,17 @@ class MessageFinder
 
   private
 
+  def messages
+    return @conversation.messages if @params[:filter_internal_messages].blank?
+
+    @conversation.messages.where.not('private = ? OR message_type = ?', true, 2)
+  end
+
   def current_messages
     if @params[:before].present?
-      @conversation.messages.reorder('created_at desc').where('id < ?', @params[:before]).limit(20).reverse
+      messages.reorder('created_at desc').where('id < ?', @params[:before]).limit(20).reverse
     else
-      @conversation.messages.reorder('created_at desc').limit(20).reverse
+      messages.reorder('created_at desc').limit(20).reverse
     end
   end
 end