defmodule Riverside.Test.TestServer do
  @spec start(
          handelr :: module,
          port :: non_neg_integer,
          path :: String.t()
        ) :: {:ok, pid}
  def start(handler, port, path) do
    :cowboy.start_clear(
      :test_server,
      [{:port, port}],
      %{
        env: %{
          dispatch: dispatch(handler, path)
        }
      }
    )
  end

  defp dispatch(handler, path) do
    :cowboy_router.compile([
      {:_,
       [
         {path, Riverside.Connection, [handler: handler]}
       ]}
    ])
  end

  @spec stop(pid) :: no_return
  def stop(pid) do
    :cowboy.stop_listener(:test_server)
    Process.exit(pid, :shutdown)
  end
end