class Unbound < Formula
  desc "Validating, recursive, caching DNS resolver"
  homepage "https://www.unbound.net"
  url "https://nlnetlabs.nl/downloads/unbound/unbound-1.9.1.tar.gz"
  sha256 "c3c0bf9b86ccba4ca64f93dd4fe7351308ab54293f297a67de5a8914c1dc59c5"
  revision 1
  head "https://github.com/NLnetLabs/unbound.git"

  bottle do
    sha256 "3897bcc25b36315cbda263d5048f608fb32736caa1839c2117146b8295c74530" => :mojave
    sha256 "fa2e0a209f9eeb4818300136b3c41030b6d4fc4c76b2385ebc717dd0798f1495" => :high_sierra
    sha256 "787fd85e55a6205ac18e52ad583ff2bca8e760a274f0e6278c8befb50959b685" => :sierra
  end

  depends_on "libevent"
  depends_on "openssl"

  def install
    args = %W[
      --prefix=#{prefix}
      --sysconfdir=#{etc}
      --with-libevent=#{Formula["libevent"].opt_prefix}
      --with-ssl=#{Formula["openssl"].opt_prefix}
      --enable-event-api
    ]

    args << "--with-libexpat=#{MacOS.sdk_path}/usr" if MacOS.sdk_path_if_needed
    system "./configure", *args

    inreplace "doc/example.conf", 'username: "unbound"', 'username: "@@HOMEBREW-UNBOUND-USER@@"'
    system "make"
    system "make", "test"
    system "make", "install"
  end

  def post_install
    conf = etc/"unbound/unbound.conf"
    return unless conf.exist?
    return unless conf.read.include?('username: "@@HOMEBREW-UNBOUND-USER@@"')

    inreplace conf, 'username: "@@HOMEBREW-UNBOUND-USER@@"',
                    "username: \"#{ENV["USER"]}\""
  end

  plist_options :startup => true

  def plist; <<~EOS
    <?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
    <plist version="1.0">
      <dict>
        <key>Label</key>
        <string>#{plist_name}</string>
        <key>KeepAlive</key>
        <true/>
        <key>RunAtLoad</key>
        <true/>
        <key>ProgramArguments</key>
        <array>
          <string>#{opt_sbin}/unbound</string>
          <string>-d</string>
          <string>-c</string>
          <string>#{etc}/unbound/unbound.conf</string>
        </array>
        <key>UserName</key>
        <string>root</string>
        <key>StandardErrorPath</key>
        <string>/dev/null</string>
        <key>StandardOutPath</key>
        <string>/dev/null</string>
      </dict>
    </plist>
  EOS
  end

  test do
    system sbin/"unbound-control-setup", "-d", testpath
  end
end