Attempt at adding a last active field to tokens

lib/pleroma/web/o_auth/token.ex

@@ -21,6 +21,7 @@ defmodule Pleroma.Web.OAuth.Token do
     field(:refresh_token, :string)
     field(:scopes, {:array, :string}, default: [])
     field(:valid_until, :naive_datetime_usec)
+    field(:last_active, :naive_datetime_usec)
     belongs_to(:user, User, type: FlakeId.Ecto.CompatType)
     belongs_to(:app, App)
 
@@ -96,6 +97,14 @@ defmodule Pleroma.Web.OAuth.Token do
     |> validate_required([:valid_until])
   end
 
+  defp update_activity() do
+    last_active = NaiveDateTime.utc_now()
+
+    changeset
+    |> change(%{last_active: last_active})
+    |> validate_required([:last_active])
+  end
+
   @spec create(App.t(), User.t(), map()) :: {:ok, Token.t()} | {:error, Ecto.Changeset.t()}
   def create(%App{} = app, %User{} = user, attrs \\ %{}) do
     with {:ok, token} <- do_create(app, user, attrs) do

lib/pleroma/web/o_auth/token_view.ex

@@ -17,6 +17,7 @@ defmodule Pleroma.Web.OAuth.TokenView do
     %{
       id: token_entry.id,
       valid_until: token_entry.valid_until,
+      last_active: token_entry.last_active,
       app_name: token_entry.app.client_name,
       scopes: token_entry.scopes,
       is_current_token: token_entry.id == current_token.id

lib/pleroma/web/plugs/o_auth_plug.ex

@@ -24,6 +24,7 @@ defmodule Pleroma.Web.Plugs.OAuthPlug do
     with {:ok, token_str} <- fetch_token_str(conn) do
       with {:ok, user, user_token} <- fetch_user_and_token(token_str),
            false <- Token.expired?(user_token) do
+        Token.update_activity()
         conn
         |> assign(:token, user_token)
         |> assign(:user, user)