class Varnish < Formula
  desc "High-performance HTTP accelerator"
  homepage "https://www.varnish-cache.org/"
  url "https://varnish-cache.org/_downloads/varnish-5.2.1.tgz"
  sha256 "b8452c9d78c16f78c8cfd1c1a1e696523bf64b7721c330150dcc0852459014b3"

  bottle do
    sha256 "382cd91df3dcb06cb4e741036e061f64bf42cc8f22615baf2c3c88c5e6796dce" => :high_sierra
    sha256 "4376d9964660db9e28b1075560bfec753d0bfd5c04fbbf9c6f2c2d9eb9d29088" => :sierra
    sha256 "508da7c537c4d41c9a4af5e5c8faceec47c7768bf5e9542806514f3f718a2f2b" => :el_capitan
  end

  depends_on "pkg-config" => :build
  depends_on "docutils" => :build
  depends_on "pcre"

  def install
    system "./configure", "--disable-dependency-tracking",
                          "--prefix=#{prefix}",
                          "--localstatedir=#{var}"
    system "make", "install"
    (etc/"varnish").install "etc/example.vcl" => "default.vcl"
    (var/"varnish").mkpath
  end

  plist_options :manual => "#{HOMEBREW_PREFIX}/sbin/varnishd -n #{HOMEBREW_PREFIX}/var/varnish -f #{HOMEBREW_PREFIX}/etc/varnish/default.vcl -s malloc,1G -T 127.0.0.1:2000 -a 0.0.0.0:8080 -F"

  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>ProgramArguments</key>
        <array>
          <string>#{opt_sbin}/varnishd</string>
          <string>-n</string>
          <string>#{var}/varnish</string>
          <string>-f</string>
          <string>#{etc}/varnish/default.vcl</string>
          <string>-s</string>
          <string>malloc,1G</string>
          <string>-T</string>
          <string>127.0.0.1:2000</string>
          <string>-a</string>
          <string>0.0.0.0:8080</string>
          <string>-F</string>
        </array>
        <key>KeepAlive</key>
        <true/>
        <key>RunAtLoad</key>
        <true/>
        <key>WorkingDirectory</key>
        <string>#{HOMEBREW_PREFIX}</string>
        <key>StandardErrorPath</key>
        <string>#{var}/varnish/varnish.log</string>
        <key>StandardOutPath</key>
        <string>#{var}/varnish/varnish.log</string>
      </dict>
      </plist>
    EOS
  end

  test do
    assert_match version.to_s, shell_output("#{sbin}/varnishd -V 2>&1")
  end
end