Add support for FASP data sharing (#34415)

app/models/concerns/account/fasp_concern.rb

@@ -0,0 +1,37 @@
+# frozen_string_literal: true
+
+module Account::FaspConcern
+  extend ActiveSupport::Concern
+
+  included do
+    after_commit :announce_new_account_to_subscribed_fasp, on: :create
+    after_commit :announce_updated_account_to_subscribed_fasp, on: :update
+    after_commit :announce_deleted_account_to_subscribed_fasp, on: :destroy
+  end
+
+  private
+
+  def announce_new_account_to_subscribed_fasp
+    return unless Mastodon::Feature.fasp_enabled?
+    return unless discoverable?
+
+    uri = ActivityPub::TagManager.instance.uri_for(self)
+    Fasp::AnnounceAccountLifecycleEventWorker.perform_async(uri, 'new')
+  end
+
+  def announce_updated_account_to_subscribed_fasp
+    return unless Mastodon::Feature.fasp_enabled?
+    return unless discoverable? || saved_change_to_discoverable?
+
+    uri = ActivityPub::TagManager.instance.uri_for(self)
+    Fasp::AnnounceAccountLifecycleEventWorker.perform_async(uri, 'update')
+  end
+
+  def announce_deleted_account_to_subscribed_fasp
+    return unless Mastodon::Feature.fasp_enabled?
+    return unless discoverable?
+
+    uri = ActivityPub::TagManager.instance.uri_for(self)
+    Fasp::AnnounceAccountLifecycleEventWorker.perform_async(uri, 'delete')
+  end
+end