Fix home regeneration (#6251)

* Fix regeneration marker not being removed after completion

* Return HTTP 206 from /api/v1/timelines/home if regeneration in progress
Prioritize RegenerationWorker by putting it into default queue

* Display loading indicator and poll home timeline while it regenerates

* Add graphic to regeneration message

* Make "not found" indicator consistent with home regeneration

1 files changed, 9 insertions, 1 deletions

diff --git a/app/controllers/api/v1/timelines/home_controller.rb b/app/controllers/api/v1/timelines/home_controller.rb
index db6cd8568..bbbcf7f90 100644
--- a/app/controllers/api/v1/timelines/home_controller.rb
+++ b/app/controllers/api/v1/timelines/home_controller.rb
@@ -9,7 +9,11 @@ class Api::V1::Timelines::HomeController < Api::BaseController
 
   def show
     @statuses = load_statuses
-    render json: @statuses, each_serializer: REST::StatusSerializer, relationships: StatusRelationshipsPresenter.new(@statuses, current_user&.account_id)
+
+    render json: @statuses,
+           each_serializer: REST::StatusSerializer,
+           relationships: StatusRelationshipsPresenter.new(@statuses, current_user&.account_id),
+           status: regeneration_in_progress? ? 206 : 200
   end
 
   private
@@ -57,4 +61,8 @@ class Api::V1::Timelines::HomeController < Api::BaseController
   def pagination_since_id
     @statuses.first.id
   end
+
+  def regeneration_in_progress?
+    Redis.current.exists("account:#{current_account.id}:regeneration")
+  end
 end