class Gnatsd < Formula
  desc "Lightweight cloud messaging system"
  homepage "https://nats.io"
  url "https://github.com/nats-io/gnatsd/archive/v0.9.4.tar.gz"
  sha256 "6465161c52e3e703f88cfe37182904d956234c4346f9ad6eb74903eff0190c98"
  head "https://github.com/apcera/gnatsd.git"

  bottle do
    cellar :any_skip_relocation
    sha256 "447407dcc51b0536b901a4b9aa006aba4b89de3b077b8fcc015a6b14b80f2838" => :el_capitan
    sha256 "0e54745a3e0cf9f33eb62b339a6ab701ee09e6b108427a5c3f8bab38ee011def" => :yosemite
    sha256 "78654a5731e84f66ccfa45a85ad241dbca8dd1010e80e856b8cf883ab3ba5b51" => :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