class Stella < Formula
  desc "Atari 2600 VCS emulator"
  homepage "https://stella-emu.github.io/"
  url "https://github.com/stella-emu/stella/releases/download/5.1.1/stella-5.1.1-src.tar.xz"
  sha256 "3de6ad86e4e881d1a23395c36c5453eb8a1160d0f3a021992fe990a009a933da"
  head "https://github.com/stella-emu/stella.git"

  bottle do
    cellar :any
    sha256 "20531655187c2cc8137714a7df420a701838192fb7cbd83d587300d1c8691471" => :high_sierra
    sha256 "2fb238f5b88ab0b154aa97ef9d2a25ca2176e1205702183b27711b928da04007" => :sierra
    sha256 "9be378753ee161c47391ce91aa9c3476df906062f6f5ad7dd57e2e8eb77d0921" => :el_capitan
  end

  depends_on :xcode => :build
  depends_on "sdl2"
  depends_on "libpng"

  def install
    sdl2 = Formula["sdl2"]
    libpng = Formula["libpng"]
    cd "src/macosx" do
      inreplace "stella.xcodeproj/project.pbxproj" do |s|
        s.gsub! %r{(\w{24} \/\* SDL2\.framework)}, '//\1'
        s.gsub! %r{(\w{24} \/\* png)}, '//\1'
        s.gsub! /(HEADER_SEARCH_PATHS) = \(/,
                "\\1 = (#{sdl2.opt_include}/SDL2, #{libpng.opt_include},"
        s.gsub! /(LIBRARY_SEARCH_PATHS) = ("\$\(LIBRARY_SEARCH_PATHS\)");/,
                "\\1 = (#{sdl2.opt_lib}, #{libpng.opt_lib}, \\2);"
        s.gsub! /(OTHER_LDFLAGS) = "((-\w+)*)"/, '\1 = "-lSDL2 -lpng \2"'
      end
      xcodebuild "SYMROOT=build"
      prefix.install "build/Release/Stella.app"
      bin.write_exec_script "#{prefix}/Stella.app/Contents/MacOS/Stella"
    end
  end

  test do
    assert_match /Stella version #{version}/, shell_output("#{bin}/Stella -help").strip
  end
end