defmodule PhoenixReactify.Helpers.Babel do
  use PhoenixReactify.Helper

  @doc """
    Add the specified entry to the .babelrc under the current path
  """
  @spec add_entry_to_babelrc(String.t(), String.t()) :: :ok
  def add_entry_to_babelrc(current_path, entry) do
    File.touch!("#{current_path}/assets/.babelrc")

    case Jason.decode(File.read!("#{current_path}/assets/.babelrc")) do
      {:ok, decoded} ->
        updatedBabelRc =
          Map.put(decoded, "presets", Map.get(decoded, "presets", []) ++ ["#{entry}"])

        File.write!(
          "#{current_path}/assets/.babelrc",
          """
            #{Jason.encode!(updatedBabelRc)}
          """
        )

      {:error, _} ->
        nil
    end
  end
end