defmodule App.Plug.Auth do
  import Plug.Conn

  def init(opts), do: opts

  def call(conn, _opts) do
    user_id = get_session(conn, :user_id)

    cond do
      conn.assigns[:current_user] ->
        conn
      user = user_id && App.Repo.get(App.User, user_id) ->
        assign(conn, :current_user, user)
      true ->
        assign(conn, :current_user, nil)
    end
  end
end