streamables =
[[actor, recipient], [recipient, actor]]
+ |> Enum.uniq()
|> Enum.map(fn [user, other_user] ->
if user.local do
{:ok, chat} = Chat.bump_or_create(user.id, other_user.ap_id)
{:ok, cm_ref} = MessageReference.create(chat, object, user.ap_id != actor.ap_id)
+ Cachex.put(
+ :chat_message_id_idempotency_key_cache,
+ cm_ref.id,
+ meta[:idempotency_key]
+ )
+
{
["user", "user:pleroma_chat"],
{user, %{cm_ref | chat: chat, object: object}}