Improve RSS entries for statuses (#13592)

* Improve RSS entries for statuses

- Render polls in both accounts and tags serializers
- Refactor RSS serializers
- Change title preview to include ellipsis when truncated
- Change title preview to show CW instead of toot text
- Add tests

* Remove title from OEmbed serialization

Twitter doesn't serialize title either, and tihs allows us to move the
title formatting code to the RSS serializers.

1 files changed, 2 insertions, 13 deletions

diff --git a/app/serializers/rss/account_serializer.rb b/app/serializers/rss/account_serializer.rb
index ee972ff96..81e24af0d 100644
--- a/app/serializers/rss/account_serializer.rb
+++ b/app/serializers/rss/account_serializer.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-class RSS::AccountSerializer
+class RSS::AccountSerializer < RSS::Serializer
   include ActionView::Helpers::NumberHelper
   include AccountsHelper
   include RoutingHelper
@@ -17,18 +17,7 @@ class RSS::AccountSerializer
     builder.image(full_asset_url(account.avatar.url(:original))) if account.avatar?
     builder.cover(full_asset_url(account.header.url(:original))) if account.header?
 
-    statuses.each do |status|
-      builder.item do |item|
-        item.title(status.title)
-            .link(ActivityPub::TagManager.instance.url_for(status))
-            .pub_date(status.created_at)
-            .description(status.spoiler_text.presence || Formatter.instance.format(status, inline_poll_options: true).to_str)
-
-        status.media_attachments.each do |media|
-          item.enclosure(full_asset_url(media.file.url(:original, false)), media.file.content_type, media.file.size)
-        end
-      end
-    end
+    render_statuses(builder, statuses)
 
     builder.to_xml
   end