class Ncurses < Formula
  desc "Text-based UI library"
  homepage "https://www.gnu.org/s/ncurses/"
  url "https://ftpmirror.gnu.org/ncurses/ncurses-6.4.tar.gz"
  mirror "https://ftp.gnu.org/gnu/ncurses/ncurses-6.4.tar.gz"
  sha256 "6931283d9ac87c5073f30b6290c4c75f21632bb4fc3603ac8100812bed248159"

  bottle do
    sha256 "4ec59b31309bbd20ee0d354a8eda5ff32f6a0607c9e2df5467b8b0b948323b70" => :tiger_altivec
    sha256 "862fcc19fcf64f8fda2a711044341b3a59550fac7e24e55f02d8aa49b3e9d240" => :tiger_g3
  end

  keg_only :provided_by_osx

  depends_on "pkg-config" => :build

  def install
    # Build breaks passing -w
    ENV.enable_warnings if ENV.compiler == :gcc_4_0

    system "./configure", "--prefix=#{prefix}",
                          "--enable-pc-files",
                          "--with-pkg-config-libdir=#{lib}/pkgconfig",
                          "--enable-sigwinch",
                          "--enable-symlinks",
                          "--enable-widec",
                          "--mandir=#{man}",
                          "--with-manpage-format=normal",
                          "--with-shared",
                          "--with-gpm=no"
    system "make"
    ENV.deparallelize
    system "make", "install"
    make_libncurses_symlinks

    prefix.install "test"
    (prefix/"test").install "install-sh", "config.sub", "config.guess"
  end

  def make_libncurses_symlinks
    major = version.to_s.split(".")[0]

    %w[form menu ncurses panel].each do |name|
      if OS.mac?
        lib.install_symlink "lib#{name}w.#{major}.dylib" => "lib#{name}.dylib"
        lib.install_symlink "lib#{name}w.#{major}.dylib" => "lib#{name}.#{major}.dylib"
      else
        lib.install_symlink "lib#{name}w.so.#{major}" => "lib#{name}.so"
        lib.install_symlink "lib#{name}w.so.#{major}" => "lib#{name}.so.#{major}"
      end
      lib.install_symlink "lib#{name}w.a" => "lib#{name}.a"
      lib.install_symlink "lib#{name}w_g.a" => "lib#{name}_g.a"
    end

    lib.install_symlink "libncurses++w.a" => "libncurses++.a"
    lib.install_symlink "libncurses.a" => "libcurses.a"
    if OS.mac?
      lib.install_symlink "libncurses.dylib" => "libcurses.dylib"
    else
      lib.install_symlink "libncurses.so" => "libcurses.so"
      lib.install_symlink "libncurses.so" => "libtinfo.so"
    end

    (lib/"pkgconfig").install_symlink "ncursesw.pc" => "ncurses.pc"

    bin.install_symlink "ncursesw#{major}-config" => "ncurses#{major}-config"

    include.install_symlink [
      "ncursesw/curses.h", "ncursesw/form.h", "ncursesw/ncurses.h",
      "ncursesw/panel.h", "ncursesw/term.h", "ncursesw/termcap.h"
    ]
  end

  test do
    ENV["TERM"] = "xterm"
    system bin/"tput", "cols"
    system prefix/"test/keynames"
    system prefix/"test/test_arrays"
    system prefix/"test/test_vidputs"
  end
end