require "formula"

# Note that x.even are stable releases, x.odd are devel releases
class Node < Formula
  homepage "http://nodejs.org/"
  url "http://nodejs.org/dist/v0.10.32/node-v0.10.32.tar.gz"
  sha256 "c2120d0e3d2d191654cb11dbc0a33a7216d53732173317681da9502be0030f10"

  bottle do
    revision 5
    sha1 "2c9a3d216724479e319ed594c7c7019c9b2fbf40" => :yosemite
    sha1 "21a907e9143e132ad08f424bbc98b472ee4d0042" => :mavericks
    sha1 "a882dcc7e9bf4ed3dd55bf15c99921288df4e9ce" => :mountain_lion
  end

  devel do
    url "http://nodejs.org/dist/v0.11.14/node-v0.11.14.tar.gz"
    sha256 "ce08b0a2769bcc135ca25639c9d411a038e93e0f5f5a83000ecde9b763c4dd83"
  end

  head "https://github.com/joyent/node.git"

  option "enable-debug", "Build with debugger hooks"
  option "without-npm", "npm will not be installed"
  option "without-completion", "npm bash completion will not be installed"

  depends_on :python => :build

  fails_with :llvm do
    build 2326
  end

  resource "npm" do
    url "https://registry.npmjs.org/npm/-/npm-1.4.24.tgz"
    sha1 "78125bb55dc592b9cbf4aff44e33d5d81c9471af"
  end

  def install
    args = %W{--prefix=#{prefix} --without-npm}
    args << "--debug" if build.include? "enable-debug"

    system "./configure", *args
    system "make", "install"

    resource("npm").stage libexec/"npm" if build.with? "npm"
  end

  def post_install
    return if build.without? "npm"

    node_modules = HOMEBREW_PREFIX/"lib/node_modules"
    node_modules.mkpath
    cp_r libexec/"npm", node_modules

    npm_root = node_modules/"npm"
    npmrc = npm_root/"npmrc"
    npmrc.atomic_write("prefix = #{HOMEBREW_PREFIX}\n")

    # make sure npm can find node
    ENV["PATH"] = "#{opt_bin}:#{ENV["PATH"]}"

    ENV["NPM_CONFIG_USERCONFIG"] = npmrc
    npm_root.cd { system "make", "VERBOSE=1", "install" }
    system "#{HOMEBREW_PREFIX}/bin/npm", "install", "--global", "npm@latest",
                                         "--prefix", HOMEBREW_PREFIX

    Pathname.glob(npm_root/"man/*") do |man|
      man.children.each do |file|
        ln_sf file, "#{HOMEBREW_PREFIX}/share/man/#{man.basename}"
      end
    end

    if build.with? "completion"
      bash_completion.install_symlink \
        npm_root/"lib/utils/completion.sh" => "npm"
    end
  end

  def caveats
    if build.without? "npm"; <<-end.undent
      Homebrew has NOT installed npm. If you later install it, you should supplement
      your NODE_PATH with the npm module folder:
        #{HOMEBREW_PREFIX}/lib/node_modules
      end
    end
  end

  test do
    path = testpath/"test.js"
    path.write "console.log('hello');"

    output = `#{bin}/node #{path}`.strip
    assert_equal "hello", output
    assert_equal 0, $?.exitstatus

    if build.with? "npm"
      # make sure npm can find node
      ENV.prepend_path "PATH", opt_bin
      assert_equal which("node"), opt_bin/"node"
      assert (HOMEBREW_PREFIX/"bin/npm").executable?, "npm must be executable"
      system "#{HOMEBREW_PREFIX}/bin/npm", "--verbose", "install", "npm@latest"
    end
  end
end