Add trending statuses (#17431)

* Add trending statuses

* Fix dangling items with stale scores in localized sets

* Various fixes and improvements

- Change approve_all/reject_all to approve_accounts/reject_accounts
- Change Trends::Query methods to not mutate the original query
- Change Trends::Query#skip to offset
- Change follow recommendations to be refreshed in a transaction

* Add tests for trending statuses filtering behaviour

* Fix not applying filtering scope in controller

3 files changed, 39 insertions, 1 deletions

diff --git a/app/controllers/api/v1/admin/trends/links_controller.rb b/app/controllers/api/v1/admin/trends/links_controller.rb
new file mode 100644
index 000000000..63b3d9358
--- /dev/null
+++ b/app/controllers/api/v1/admin/trends/links_controller.rb
@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+class Api::V1::Admin::Trends::LinksController < Api::BaseController
+  protect_from_forgery with: :exception
+
+  before_action -> { authorize_if_got_token! :'admin:read' }
+  before_action :require_staff!
+  before_action :set_links
+
+  def index
+    render json: @links, each_serializer: REST::Trends::LinkSerializer
+  end
+
+  private
+
+  def set_links
+    @links = Trends.links.query.limit(limit_param(10))
+  end
+end
diff --git a/app/controllers/api/v1/admin/trends/statuses_controller.rb b/app/controllers/api/v1/admin/trends/statuses_controller.rb
new file mode 100644
index 000000000..86633cc74
--- /dev/null
+++ b/app/controllers/api/v1/admin/trends/statuses_controller.rb
@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+class Api::V1::Admin::Trends::StatusesController < Api::BaseController
+  protect_from_forgery with: :exception
+
+  before_action -> { authorize_if_got_token! :'admin:read' }
+  before_action :require_staff!
+  before_action :set_statuses
+
+  def index
+    render json: @statuses, each_serializer: REST::StatusSerializer
+  end
+
+  private
+
+  def set_statuses
+    @statuses = cache_collection(Trends.statuses.query.limit(limit_param(DEFAULT_STATUSES_LIMIT)), Status)
+  end
+end
diff --git a/app/controllers/api/v1/admin/trends/tags_controller.rb b/app/controllers/api/v1/admin/trends/tags_controller.rb
index 4815af31e..5cc4c269d 100644
--- a/app/controllers/api/v1/admin/trends/tags_controller.rb
+++ b/app/controllers/api/v1/admin/trends/tags_controller.rb
@@ -14,6 +14,6 @@ class Api::V1::Admin::Trends::TagsController < Api::BaseController
   private
 
   def set_tags
-    @tags = Trends.tags.get(false, limit_param(10))
+    @tags = Trends.tags.query.limit(limit_param(10))
   end
 end