class Libsodium < Formula
  desc "NaCl networking and cryptography library"
  homepage "https://libsodium.org/"
  url "https://download.libsodium.org/libsodium/releases/libsodium-1.0.20.tar.gz"
  sha256 "ebb65ef6ca439333c2bb41a0c1990587288da07f6c7fd07cb3a18cc18d30ce19"
  license "ISC"

  livecheck do
    url "https://download.libsodium.org/libsodium/releases/"
    regex(/href=.*?libsodium[._-]v?(\d+(?:\.\d+)+)\.t/i)
  end

  head do
    url "https://github.com/jedisct1/libsodium.git", branch: "master"

    depends_on "autoconf" => :build
    depends_on "automake" => :build
    depends_on "libtool" => :build
  end

  def install
    system "./autogen.sh", "-sb" if build.head?
    system "./configure", "--disable-debug", "--disable-dependency-tracking",
                          "--prefix=#{prefix}"
    system "make", "check"
    system "make", "install"
  end

  test do
    (testpath/"test.c").write <<~EOS
      #include <assert.h>
      #include <sodium.h>

      int main()
      {
        assert(sodium_init() != -1);
        return 0;
      }
    EOS
    system ENV.cc, "test.c", "-I#{include}", "-L#{lib}",
                   "-lsodium", "-o", "test"
    system "./test"
  end
end