ifttt_webhook

defmodule IftttWebhook.Server do
  @moduledoc """
  A GenServer implementation to send webhooks to IFTTT
  """

  use GenServer

  alias IftttWebhook.API

  @spec start_link(binary) ::
    {:ok, pid} |
    {:error, term}
  def start_link(api_key) do
    GenServer.start_link(__MODULE__, api_key, name: __MODULE__)
  end

  @doc """
  Sends event and values to the server, which uses `IftttWebhook.API`
  to send it to IFTTT's Webservice
  """
  def send_async(event, values) when is_list(values) do
    GenServer.cast(__MODULE__, {:send, event, values})
  end

  # Server implementation

  def init(api_key) do
    {:ok, api_key}
  end

  def handle_cast({:send, event, values}, api_key) do
    {:ok, _response} = API.send(api_key, event, values)
    {:noreply, api_key}
  end
end