class Zstd < Formula
  desc "Zstandard is a real-time compression algorithm"
  homepage "https://facebook.github.io/zstd/"
  url "https://github.com/facebook/zstd/archive/v1.4.8.tar.gz"
  sha256 "f176f0626cb797022fbf257c3c644d71c1c747bb74c32201f9203654da35e9fa"
  license "BSD-3-Clause"

  bottle do
    sha256 cellar: :any, arm64_big_sur: "d3810a086fabf6504862103baf4026bac4c47fa185b748b319106c8bd0fd9e3c"
    sha256 cellar: :any, big_sur:       "d015379ee322c5984c55803256ac876ed1389eca2c15767b251232a81f45b08b"
    sha256 cellar: :any, catalina:      "ad897f36994db64c4ec410c1e9324b66dcf4f2175cf7d24c62ec647921b5dc7d"
    sha256 cellar: :any, mojave:        "936b64748f097bf20c380f06ea3d8dc963e6051240d92935b36776546c406ade"
  end

  depends_on "cmake" => :build

  uses_from_macos "zlib"

  def install
    ENV['CFLAGS'] = '-isysroot /usr/local/SYSROOT/MacOSX10.13.sdk'
    ENV['CXXFLAGS'] = '-isysroot /usr/local/SYSROOT/MacOSX10.13.sdk'
    ENV['CC'] = '/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang'
    ENV['CXX'] = '/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++'
    ENV['LD'] = '/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld'
    ENV['AR'] = '/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ar'
    system "gmake", "-j16", "install", "PREFIX=#{prefix}/"

    # Build parallel version
    system "gmake", "-j16", "-C", "contrib/pzstd", "PREFIX=#{prefix}"
    bin.install "contrib/pzstd/pzstd"
  end

  test do
    assert_equal "hello\n",
      pipe_output("#{bin}/zstd | #{bin}/zstd -d", "hello\n", 0)

    assert_equal "hello\n",
      pipe_output("#{bin}/pzstd | #{bin}/pzstd -d", "hello\n", 0)
  end
end