# Reference: https://github.com/macvim-dev/macvim/wiki/building
class Macvim < Formula
  desc "GUI for vim, made for macOS"
  homepage "https://github.com/macvim-dev/macvim"
  url "https://github.com/macvim-dev/macvim/archive/snapshot-173.tar.gz"
  version "9.0.0065"
  sha256 "2b9208fa7d201aa1a5b1ac8f7ebba6d75f37cbfbaaae3b55b81d27c80eb50785"
  license "Vim"
  head "https://github.com/macvim-dev/macvim.git", branch: "master"

  bottle do
    sha256 arm64_monterey: "bc9f6f3f22cd28592cdc1dd1b666e0abd933dcb5bbeb66b6e5f64a1f23e5a7e7"
    sha256 arm64_big_sur:  "fea10182a156107b709c498210f7abe7533735836c0908b4750917a7de31e499"
    sha256 monterey:       "cb55428bb68e448e9723bf51b8dfc8fea7da318047dfa07ff6c44b1b08e73166"
    sha256 big_sur:        "b6cca47b50f3065c0ea377cb1ebd1b485cfb6417065bbd6100497c77ca44c8dc"
    sha256 catalina:       "92b38c13544ea29478301b13f4b39af205fd0c0e9d6f3bc48192dbc971410ea4"
  end

  depends_on xcode: :build
  depends_on "cscope"
  depends_on "gettext"
  depends_on "lua"
  depends_on :macos
  depends_on "python@3.10"
  depends_on "ruby"

  conflicts_with "vim",
    because: "vim and macvim both install vi* binaries"

  def install
    # Avoid issues finding Ruby headers
    ENV.delete("SDKROOT")

    # MacVim doesn't have or require any Python package, so unset PYTHONPATH
    ENV.delete("PYTHONPATH")

    # make sure that CC is set to "clang"
    ENV.clang

    system "./configure", "--with-features=huge",
                          "--enable-multibyte",
                          "--enable-perlinterp",
                          "--enable-rubyinterp",
                          "--enable-tclinterp",
                          "--enable-terminal",
                          "--with-tlib=ncurses",
                          "--with-compiledby=Homebrew",
                          "--with-local-dir=#{HOMEBREW_PREFIX}",
                          "--enable-cscope",
                          "--enable-luainterp",
                          "--with-lua-prefix=#{Formula["lua"].opt_prefix}",
                          "--enable-luainterp",
                          "--enable-python3interp",
                          "--disable-sparkle",
                          "--with-macarchs=#{Hardware::CPU.arch}"
    system "make"

    prefix.install "src/MacVim/build/Release/MacVim.app"
    # Remove autoupdating universal binaries
    (prefix/"MacVim.app/Contents/Frameworks/Sparkle.framework").rmtree
    bin.install_symlink prefix/"MacVim.app/Contents/bin/mvim"

    # Create MacVim vimdiff, view, ex equivalents
    executables = %w[mvimdiff mview mvimex gvim gvimdiff gview gvimex]
    executables += %w[vi vim vimdiff view vimex]
    executables.each { |e| bin.install_symlink "mvim" => e }
  end

  test do
    output = shell_output("#{bin}/mvim --version")
    assert_match "+ruby", output
    assert_match "+gettext", output

    # Simple test to check if MacVim was linked to Homebrew's Python 3
    py3_exec_prefix = shell_output(Formula["python@3.10"].opt_bin/"python3-config --exec-prefix")
    assert_match py3_exec_prefix.chomp, output
    (testpath/"commands.vim").write <<~EOS
      :python3 import vim; vim.current.buffer[0] = 'hello python3'
      :wq
    EOS
    system bin/"mvim", "-v", "-T", "dumb", "-s", "commands.vim", "test.txt"
    assert_equal "hello python3", (testpath/"test.txt").read.chomp
  end
end