class Gnatsd < Formula
  desc "Lightweight cloud messaging system"
  homepage "https://nats.io"
  url "https://github.com/nats-io/gnatsd/archive/v0.9.2.tar.gz"
  sha256 "307a9cc8e1cd460865c0c9278ee64120711f3169c9c5bc22e08fadd5884a5201"
  head "https://github.com/apcera/gnatsd.git"

  bottle do
    cellar :any_skip_relocation
    sha256 "d7409e50dd28d05015ac977444a4725c3d362c1ee9a58ebdc8ef378e19c4f53b" => :el_capitan
    sha256 "216b24c9e0fcc6982ceafbc050aaf15460988a792917b2147f467d32f4fd1d4d" => :yosemite
    sha256 "d1d8243cb6268a313a930ee145c093d6b54163b70a5e485fb09dbfee37e592e1" => :mavericks
  end

  depends_on "go" => :build

  def install
    ENV["GOPATH"] = buildpath
    mkdir_p "src/github.com/nats-io"
    ln_s buildpath, "src/github.com/nats-io/gnatsd"
    system "go", "build", "-o", bin/"gnatsd", "main.go"
  end

  plist_options :manual => "gnatsd"

  def plist; <<-EOS.undent
    <?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_bin}/gnatsd</string>
        </array>
        <key>RunAtLoad</key>
        <true/>
      </dict>
    </plist>
    EOS
  end

  test do
    pid = fork do
      exec bin/"gnatsd",
           "--port=8085",
           "--pid=#{testpath}/pid",
           "--log=#{testpath}/log"
    end
    sleep 3

    begin
      assert_match version.to_s, shell_output("curl localhost:8085")
      assert File.exist?(testpath/"log")
    ensure
      Process.kill "SIGINT", pid
      Process.wait pid
    end
  end
end