Add conversations API (#8832)

* Add conversations API

* Add web UI for conversations

* Add test for conversations API

* Add tests for ConversationAccount

* Improve web UI

* Rename ConversationAccount to AccountConversation

* Remove conversations on block and mute

* Change last_status_id to be a denormalization of status_ids

* Add optimistic locking

app/workers/block_worker.rb

@@ -4,6 +4,9 @@ class BlockWorker
   include Sidekiq::Worker
 
   def perform(account_id, target_account_id)
-    AfterBlockService.new.call(Account.find(account_id), Account.find(target_account_id))
+    AfterBlockService.new.call(
+      Account.find(account_id),
+      Account.find(target_account_id)
+    )
   end
 end

app/workers/mute_worker.rb

@@ -0,0 +1,12 @@
+# frozen_string_literal: true
+
+class MuteWorker
+  include Sidekiq::Worker
+
+  def perform(account_id, target_account_id)
+    FeedManager.instance.clear_from_timeline(
+      Account.find(account_id),
+      Account.find(target_account_id)
+    )
+  end
+end

app/workers/push_conversation_worker.rb

@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+class PushConversationWorker
+  include Sidekiq::Worker
+
+  def perform(conversation_account_id)
+    conversation = AccountConversation.find(conversation_account_id)
+    message      = InlineRenderer.render(conversation, conversation.account, :conversation)
+    timeline_id  = "timeline:direct:#{conversation.account_id}"
+
+    Redis.current.publish(timeline_id, Oj.dump(event: :conversation, payload: message, queued_at: (Time.now.to_f * 1000.0).to_i))
+  rescue ActiveRecord::RecordNotFound
+    true
+  end
+end