defmodule IRemoteStorage do
  use Tesla

  plug(SteamAPI, "ISteamRemoteStorage")
  plug(Tesla.Middleware.FormUrlencoded)

  def _helper(c, i) do
    num = Enum.count(i)

    m =
      i
      |> Enum.with_index()
      |> Enum.map(fn {x, y} ->
        %{"publishedfileids[#{y}]" => x}
      end)
      |> Enum.reduce(fn x, xs ->
        Map.merge(x, xs)
      end)

    Map.merge(%{"#{c}count" => num}, m)
  end

  def collection(collections) do
    vars = _helper("collection", collections)

    if {:ok, response} = post("GetCollectionDetails/v1", vars) do
      Jason.decode(response.body, %{keys: :atoms})
    end
  end

  def item(items) do
    vars = _helper("item", items)

    if {:ok, response} = post("GetPublishedFileDetails/v1", vars) do
      Jason.decode(response.body, %{keys: :atoms})
    end
  end

end