class Graphicsmagick < Formula
  desc "Image processing tools collection"
  homepage "http://www.graphicsmagick.org/"
  url "https://downloads.sourceforge.net/project/graphicsmagick/graphicsmagick-history/1.3/GraphicsMagick-1.3.21.tar.gz"
  sha256 "84ddfa0c1b5bf47db8d7d2937d4ac2fdce5e45acfd7d8a5e6a2387162312c394"
  head "http://hg.code.sf.net/p/graphicsmagick/code", :using => :hg
  revision 1

  bottle do
  end

  option "with-quantum-depth-8", "Compile with a quantum depth of 8 bit"
  option "with-quantum-depth-16", "Compile with a quantum depth of 16 bit"
  option "with-quantum-depth-32", "Compile with a quantum depth of 32 bit"
  option "without-magick-plus-plus", "disable build/install of Magick++"
  option "without-svg", "Compile without svg support"
  option "with-perl", "Build PerlMagick; provides the Graphics::Magick module"

  depends_on "libtool" => :run

  depends_on "pkg-config" => :build

  depends_on "jpeg" => :recommended
  depends_on "libpng" => :recommended
  depends_on "freetype" => :recommended

  depends_on :x11 => :optional
  depends_on "libtiff" => :optional
  depends_on "little-cms" => :optional
  depends_on "little-cms2" => :optional
  depends_on "jasper" => :optional
  depends_on "libwmf" => :optional
  depends_on "ghostscript" => :optional
  depends_on "webp" => :optional

  fails_with :llvm do
    build 2335
  end

  skip_clean :la

  def ghostscript_fonts?
    File.directory? "#{HOMEBREW_PREFIX}/share/ghostscript/fonts"
  end

  def install
    args = ["--prefix=#{prefix}",
            "--disable-dependency-tracking",
            "--enable-shared",
            "--disable-static",
            "--with-modules",
            "--disable-openmp"]

    args << "--without-gslib" if build.without? "ghostscript"
    args << "--with-gs-font-dir=#{HOMEBREW_PREFIX}/share/ghostscript/fonts" if build.without? "ghostscript"
    args << "--without-magick-plus-plus" if build.without? "magick-plus-plus"
    args << "--with-perl" if build.with? "perl"
    args << "--with-webp=yes" if build.with? "webp"

    if build.with? "quantum-depth-32"
      quantum_depth = 32
    elsif build.with? "quantum-depth-16"
      quantum_depth = 16
    elsif build.with? "quantum-depth-8"
      quantum_depth = 8
    end

    args << "--with-quantum-depth=#{quantum_depth}" if quantum_depth
    args << "--without-x" if build.without? "x11"
    args << "--without-ttf" if build.without? "freetype"
    args << "--without-xml" if build.without? "svg"
    args << "--without-lcms" if build.without? "little-cms"
    args << "--without-lcms2" if build.without? "little-cms2"

    # versioned stuff in main tree is pointless for us
    inreplace "configure", "${PACKAGE_NAME}-${PACKAGE_VERSION}", "${PACKAGE_NAME}"
    system "./configure", *args
    system "make", "install"
    if build.with? "perl"
      cd "PerlMagick" do
        # Install the module under the GraphicsMagick prefix
        system "perl", "Makefile.PL", "INSTALL_BASE=#{prefix}"
        system "make"
        system "make", "install"
      end
    end
  end

  test do
    system "#{bin}/gm", "identify", test_fixtures("test.png")
  end

  def caveats
    if build.with? "perl"
      <<-EOS.undent
        The Graphics::Magick perl module has been installed under:

          #{lib}

      EOS
    end
  end
end
