class Libvpx < Formula
  desc "VP8/VP9 video codec"
  homepage "https://www.webmproject.org/code/"
  url "https://github.com/webmproject/libvpx/archive/refs/tags/v1.16.0.tar.gz"
  sha256 "7a479a3c66b9f5d5542a4c6a1b7d3768a983b1e5c14c60a9396edc9b649e015c"
  license "BSD-3-Clause"
  compatibility_version 1
  head "https://chromium.googlesource.com/webm/libvpx.git", branch: "main"

  on_intel do
    depends_on "yasm" => :build
  end

  def install
    ENV.runtime_cpu_detection
    # NOTE: `libvpx` will fail to build on new macOS versions before the
    # `configure` and `build/make/configure.sh` files are updated to support
    # the new target (e.g., `arm64-darwin24-gcc` for macOS 15). We [temporarily]
    # patch these files to add the new target (until there is a new version).
    # If we don't want to create a patch each year, we can consider using
    # `--force-target=#{Hardware::CPU.arch}-darwin#{OS.kernel_version.major}-gcc`
    # to force the target instead.
    args = %W[
      --prefix=#{prefix}
      --disable-dependency-tracking
      --disable-examples
      --disable-unit-tests
      --enable-pic
      --enable-runtime-cpu-detect
      --enable-shared
      --enable-vp9-highbitdepth
    ]
    args << "--target=#{Hardware::CPU.arch}-darwin#{OS.kernel_version.major}-gcc" if OS.mac?

    mkdir "macbuild" do
      system "../configure", *args
      system "make", "install"
    end
  end

  test do
    system "ar", "-x", "#{lib}/libvpx.a"
  end
end