ex_reticulum

defmodule ExReticulum.Link do
  @moduledoc """
  A bidirectional encrypted communication channel between two Reticulum nodes.
  """

  alias ExReticulum.Native

  @type t :: %__MODULE__{
          ref: reference(),
          id: binary(),
          status: :pending | :handshake | :active | :stale | :closed
        }

  @enforce_keys [:ref, :id]
  defstruct [:ref, :id, status: :pending]

  defimpl Jason.Encoder do
    def encode(link, opts) do
      link
      |> Map.take([:id, :status])
      |> Map.update!(:id, &Base.encode16(&1, case: :lower))
      |> Jason.Encode.map(opts)
    end
  end

  @spec status(t()) :: {:ok, atom()} | {:error, atom()}
  def status(%__MODULE__{ref: ref}) do
    Native.link_status(ref)
  end

  @spec rtt(t()) :: {:ok, non_neg_integer()} | {:error, atom()}
  def rtt(%__MODULE__{ref: ref}) do
    Native.link_rtt(ref)
  end
end