mix.exs

defmodule MixBlake3.Project do
  use Mix.Project

  @source_url "https://github.com/Thomas-Jean/blake3"
  @version "1.0.3"

  @rayon Application.compile_env(:blake3, :rayon, System.get_env("BLAKE3_RAYON"))
  @simd_mode Application.compile_env(:blake3, :simd_mode, System.get_env("BLAKE3_SIMD_MODE"))

  def project do
    [
      app: :blake3,
      version: @version,
      elixir: "~> 1.13",
      build_embedded: Mix.env() == :prod,
      start_permanent: Mix.env() == :prod,
      deps: deps(),
      docs: docs(),
      package: package(),
      source_url: @source_url
    ]
  end

  def application do
    []
  end

  defp package() do
    [
      description: "Elixir binding for the Rust Blake3 implementation",
      files: [
        "lib",
        "native",
        ".formatter.exs",
        "README*",
        "LICENSE*",
        "mix.exs",
        "checksum-*.exs"
      ],
      licenses: ["Apache-2.0"],
      links: %{"GitHub" => @source_url}
    ]
  end

  defp deps do
    [
      {:rustler, "~> 0.30", optional: true},
      {:rustler_precompiled, "~> 0.7"},
      {:ex_doc, "~> 0.21", only: [:dev, :test], runtime: false}
    ]
  end

  defp docs do
    [
      extras: ["README.md"],
      main: "readme",
      source_url: @source_url
    ]
  end

  def config_features() do
    simd =
      case @simd_mode do
        "c_neon" -> "neon"
        :c_neon -> "neon"
        "neon" -> "neon"
        :neon -> "neon"
        _ -> nil
      end

    rayon = if @rayon, do: "rayon", else: nil

    Enum.reject([simd, rayon], &is_nil/1)
  end
end