require 'formula'

class AndroidNdk < Formula
  homepage 'http://developer.android.com/sdk/ndk/index.html'
  version 'r10'

  if MacOS.prefer_64_bit?
    url "https://dl.google.com/android/ndk/android-ndk64-r10-darwin-x86_64.tar.bz2"
    sha1 '9ecda655e448d3b249be17f1d66f7e4f9535a3b8'

    resource "32bit_target" do
      url "https://dl.google.com/android/ndk/android-ndk32-r10-darwin-x86_64.tar.bz2"
      sha1 '4a1d226ee7361b51c02e723b5758e3da536cdf8b'
    end
  else
    url "https://dl.google.com/android/ndk/android-ndk64-r10-darwin-x86.tar.bz2"
    sha1 '0fbfd9b3af17cdab56ac475e1998f53c31fb9c1d'

    resource "32bit_target" do
      url "https://dl.google.com/android/ndk/android-ndk32-r10-darwin-x86.tar.bz2"
      sha1 'd38f5fce29e07d8b4deb538ebc2ba1ba4c067afd'
    end
  end

  depends_on 'android-sdk'

  def install
    bin.mkpath

    # Unpack 32-bit target into current directory
    target = resource("32bit_target")
    target.verify_download_integrity(target.fetch)
    system "tar", "xf", target.cached_download

    # Now we can install both 64-bit and 32-bit targeting toolchains
    prefix.install Dir['*']

    # Create a dummy script to launch the ndk apps
    ndk_exec = prefix+'ndk-exec.sh'
    ndk_exec.write <<-EOS.undent
      #!/bin/sh
      BASENAME=`basename $0`
      EXEC="#{prefix}/$BASENAME"
      test -f "$EXEC" && exec "$EXEC" "$@"
    EOS
    ndk_exec.chmod 0755
    %w[ndk-build ndk-gdb ndk-stack].each { |app| bin.install_symlink ndk_exec => app }
  end

  def caveats; <<-EOS.undent
    We agreed to the Android NDK License Agreement for you by downloading the NDK.
    If this is unacceptable you should uninstall.

    License information at:
    http://developer.android.com/sdk/terms.html

    Software and System requirements at:
    http://developer.android.com/sdk/ndk/index.html#requirements

    For more documentation on Android NDK, please check:
      #{prefix}/docs
    EOS
  end
end