defmodule ExKargo.Neuron.Connection do
  @moduledoc """
  `Neuron.Connection` implementation which extend default `Neuron.Connection.Http` with automatic Header 'X-Request-Id' that `Phoenix` give
  """
  @behaviour Neuron.Connection

  alias Neuron.Config
  require Logger

  @impl Neuron.Connection
  def call(body, options) do
    options = modify_headers(options)
    Neuron.Connection.Http.call(body, options)
  end

  defp modify_headers(options) do
    if Logger.metadata[:request_id] != nil do
      headers = headers(options)
      modified_headers = Keyword.put(headers, :"X-Request-ID", Logger.metadata[:request_id])
      Keyword.put(options, :headers, modified_headers)
    else
      options
    end
  end

  defp headers(options), do: Keyword.get(options, :headers, Config.get(:headers) || [])
end