Use a redis-cached feed for the DM timeline

app/services/batched_remove_status_service.rb

@@ -107,9 +107,9 @@ class BatchedRemoveStatusService < BaseService
     payload = @json_payloads[status.id]
     redis.pipelined do
       @mentions[status.id].each do |mention|
-        redis.publish("timeline:direct:#{mention.account.id}", payload) if mention.account.local?
+        FeedManager.instance.unpush_from_direct(mention.account, status) if mention.account.local?
       end
-      redis.publish("timeline:direct:#{status.account.id}", payload) if status.account.local?
+      FeedManager.instance.unpush_from_direct(status.account, status) if status.account.local?
     end
   end
 

app/services/fan_out_on_write_service.rb

@@ -37,6 +37,7 @@ class FanOutOnWriteService < BaseService
   def deliver_to_self(status)
     Rails.logger.debug "Delivering status #{status.id} to author"
     FeedManager.instance.push_to_home(status.account, status)
+    FeedManager.instance.push_to_direct(status.account, status) if status.direct_visibility?
   end
 
   def deliver_to_followers(status)
@@ -98,11 +99,9 @@ class FanOutOnWriteService < BaseService
   def deliver_to_direct_timelines(status)
     Rails.logger.debug "Delivering status #{status.id} to direct timelines"
 
-    status.mentions.includes(:account).each do |mention|
-      Redis.current.publish("timeline:direct:#{mention.account.id}", @payload) if mention.account.local?
+    FeedInsertWorker.push_bulk(status.mentions.includes(:account).map(&:account).select { |mentioned_account| mentioned_account.local? }) do |account|
+      [status.id, account.id, :direct]
     end
-
-    Redis.current.publish("timeline:direct:#{status.account.id}", @payload) if status.account.local?
   end
 
   def deliver_to_own_conversation(status)

app/services/precompute_feed_service.rb

@@ -3,6 +3,7 @@
 class PrecomputeFeedService < BaseService
   def call(account)
     FeedManager.instance.populate_feed(account)
+    FeedManager.instance.populate_direct_feed(account)
   ensure
     Redis.current.del("account:#{account.id}:regeneration")
   end

app/services/remove_status_service.rb

@@ -48,6 +48,7 @@ class RemoveStatusService < BaseService
 
   def remove_from_self
     FeedManager.instance.unpush_from_home(@account, @status)
+    FeedManager.instance.unpush_from_direct(@account, @status) if @status.direct_visibility?
   end
 
   def remove_from_followers
@@ -159,9 +160,8 @@ class RemoveStatusService < BaseService
 
   def remove_from_direct
     @mentions.each do |mention|
-      Redis.current.publish("timeline:direct:#{mention.account.id}", @payload) if mention.account.local?
+      FeedManager.instance.unpush_from_direct(mention.account, @status) if mention.account.local?
     end
-    Redis.current.publish("timeline:direct:#{@account.id}", @payload) if @account.local?
   end
 
   def lock_options