class Vim < Formula
  desc "Vi 'workalike' with many additional features"
  homepage "https://www.vim.org/"
  # vim should only be updated every 50 releases on multiples of 50
  url "https://github.com/vim/vim/archive/v9.0.1300.tar.gz"
  sha256 "3ddec0c67ac5a8bc905a5bc2cd2d9272ddbeddf57ed0964c1f1c489f3c80c4f5"
  license "Vim"
  head "https://github.com/vim/vim.git", branch: "master"

  # The Vim repository contains thousands of tags and the `Git` strategy isn't
  # ideal in this context. This is an exceptional situation, so this checks the
  # first page of tags on GitHub (to minimize data transfer).
  livecheck do
    url "https://github.com/vim/vim/tags"
    regex(%r{href=["']?[^"' >]*?/tag/v?(\d+(?:\.\d+)+)["' >]}i)
    strategy :page_match
  end

  bottle do
    sha256 arm64_ventura:  "25711b264cc9d3c7f65a756b24082d88edaf471cdbdb9920323269a81389ba09"
    sha256 arm64_monterey: "8354ff85f7da700aef12a4e761a3bc6d98afc8159d967c4ffc679d62452c3022"
    sha256 arm64_big_sur:  "7ad36cbeb1916bf6aec00c436626333e5d52ac3d98df2c3bc9c1a17e7d5da093"
    sha256 ventura:        "17e6ca26cb712da8891a0ebcffc50054dfc16bc6b394e3a78ab925e58d9e3332"
    sha256 monterey:       "e9e00bdc81460a4a2acc9a72ff04fccd5ab69dd24d4d2993f3b75ce9ae6c3477"
    sha256 big_sur:        "f71e20bc33ee021d5a2708818707e4866ce0d55467bb25c6e230a70615402064"
    sha256 x86_64_linux:   "a6159b75e694745aac1a13bcffb998c7bf055ed6b6e1dbceeba8bdb7d10bdfe8"
  end

  depends_on "gettext"
  depends_on "lua"
  depends_on "ncurses"
  depends_on "perl"
  depends_on "python@3.11"
  depends_on "ruby"

  conflicts_with "ex-vi",
    because: "vim and ex-vi both install bin/ex and bin/view"

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

  def install
    ENV.prepend_path "PATH", Formula["python@3.11"].opt_libexec/"bin"

    # https://github.com/Homebrew/homebrew-core/pull/1046
    ENV.delete("SDKROOT")

    # vim doesn't require any Python package, unset PYTHONPATH.
    ENV.delete("PYTHONPATH")

    # We specify HOMEBREW_PREFIX as the prefix to make vim look in the
    # the right place (HOMEBREW_PREFIX/share/vim/{vimrc,vimfiles}) for
    # system vimscript files. We specify the normal installation prefix
    # when calling "make install".
    # Homebrew will use the first suitable Perl & Ruby in your PATH if you
    # build from source. Please don't attempt to hardcode either.
    system "./configure", "--prefix=#{HOMEBREW_PREFIX}",
                          "--mandir=#{man}",
                          "--enable-multibyte",
                          "--with-tlib=ncurses",
                          "--with-compiledby=Homebrew",
                          "--enable-cscope",
                          "--enable-terminal",
                          "--enable-perlinterp",
                          "--enable-rubyinterp",
                          "--enable-python3interp",
                          "--disable-gui",
                          "--without-x",
                          "--enable-luainterp",
                          "--with-lua-prefix=#{Formula["lua"].opt_prefix}"
    system "make"
    # Parallel install could miss some symlinks
    # https://github.com/vim/vim/issues/1031
    ENV.deparallelize
    # If stripping the binaries is enabled, vim will segfault with
    # statically-linked interpreters like ruby
    # https://github.com/vim/vim/issues/114
    system "make", "install", "prefix=#{prefix}", "STRIP=#{which "true"}"
    bin.install_symlink "vim" => "vi"
  end

  test do
    (testpath/"commands.vim").write <<~EOS
      :python3 import vim; vim.current.buffer[0] = 'hello python3'
      :wq
    EOS
    system bin/"vim", "-T", "dumb", "-s", "commands.vim", "test.txt"
    assert_equal "hello python3", File.read("test.txt").chomp
    assert_match "+gettext", shell_output("#{bin}/vim --version")
  end
end