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class GnupgAT236 < Formula
  desc "GNU Pretty Good Privacy (PGP) package"
  homepage "https://gnupg.org/"
  url "https://gnupg.org/ftp/gcrypt/gnupg/gnupg-2.3.6.tar.bz2"
  sha256 "21f7fe2fc5c2f214184ab050977ec7a8e304e58bfae2ab098fec69f8fabda9c1"
  license "GPL-3.0-or-later"

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

  bottle do
    root_url 'https://github.com/Shopify/homebrew-shopify/releases/download/bag-of-holding'
    rebuild 1
    sha256 arm64_monterey: "8b8d3f5562996b8d12a22af7ab2d88975ee261c9a0800a610100a0ae4a3b9fb8"
  end

  depends_on "pkg-config" => :build
  depends_on "gettext"
  depends_on "gnutls"
  depends_on "libassuan"
  depends_on "libgcrypt"
  depends_on "libgpg-error"
  depends_on "libksba"
  depends_on "libusb"
  depends_on "npth"
  depends_on "pinentry"

  uses_from_macos "sqlite", since: :catalina

  on_linux do
    depends_on "libidn"
  end

  conflicts_with "homebrew/core/gnupg"

  def install
    libusb = Formula["libusb"]
    ENV.append "CPPFLAGS", "-I#{libusb.opt_include}/libusb-#{libusb.version.major_minor}"

    system "./configure", "--disable-dependency-tracking",
                          "--disable-silent-rules",
                          "--prefix=#{prefix}",
                          "--sbindir=#{bin}",
                          "--sysconfdir=#{etc}",
                          "--enable-all-tests",
                          "--with-pinentry-pgm=#{Formula["pinentry"].opt_bin}/pinentry"
    system "make"
    system "make", "check"
    system "make", "install"

    # Configure scdaemon as recommended by upstream developers
    # https://dev.gnupg.org/T5415#145864
    if OS.mac?
      # write to buildpath then install to ensure existing files are not clobbered
      (buildpath/"scdaemon.conf").write <<~EOS
        disable-ccid
      EOS
      pkgetc.install "scdaemon.conf"
    end
  end

  def post_install
    (var/"run").mkpath
    quiet_system "killall", "gpg-agent"
  end

  test do
    (testpath/"batch.gpg").write <<~EOS
      Key-Type: RSA
      Key-Length: 2048
      Subkey-Type: RSA
      Subkey-Length: 2048
      Name-Real: Testing
      Name-Email: testing@foo.bar
      Expire-Date: 1d
      %no-protection
      %commit
    EOS
    begin
      system bin/"gpg", "--batch", "--gen-key", "batch.gpg"
      (testpath/"test.txt").write "Hello World!"
      system bin/"gpg", "--detach-sign", "test.txt"
      system bin/"gpg", "--verify", "test.txt.sig"
    ensure
      system bin/"gpgconf", "--kill", "gpg-agent"
    end
  end
end