#!/usr/bin/env bash

macruby_install_extract_pkg()
(
  set -x
  \typeset __source __target __temp1 __temp1_org __temp2 __result
  __source="$1"
  __target="$2"
  __temp1="$( TMPDIR="${rvm_tmp_path}" mktemp -d -t rvm-tmp1.XXXXXXXXX )"
  __temp2="$( TMPDIR="${rvm_tmp_path}" mktemp -d -t rvm-tmp2.XXXXXXXXX )"
  [[ -n "${__temp1}" && -d "${__temp1}" && -n "${__temp2}" && -d "${__temp2}" ]] || return $?
  __result=0
  __temp1_org="${__temp1}"
  __temp1+="/${rvm_ruby_package_name}" # required for the next command to run at all
  pkgutil --expand "${__source}" "${__temp1}" || __result=$?
  __temp1="$( __rvm_find "${__temp1}" -name Payload -type f )"
  [[ -n "${__temp1}" ]] &&
  tar xzf "${__temp1}" -C "${__temp2}" &&
  mkdir -p "${__target}/" &&
  mv -f "${__temp2}/Library/Frameworks/MacRuby.framework/Versions/Current"/* "${__target}/" ||
  __result=$?
  rm -rf "${__temp1}" "${__temp1_org}" "${__temp2}" || true
  return ${__result}
)

macruby_install_extract_zip()
{
  mkdir -p ${rvm_src_path}/$rvm_ruby_string &&
  unzip -o -j "${rvm_archives_path}/$rvm_ruby_package_file" \
    "MacRuby ${rvm_ruby_version}/MacRuby ${rvm_ruby_version}.pkg" \
    -d "${rvm_src_path}/$rvm_ruby_string"  &&
  \command \mv "${rvm_src_path}/$rvm_ruby_string/MacRuby ${rvm_ruby_version}.pkg" \
    "${rvm_src_path}/$rvm_ruby_string/$rvm_ruby_string.pkg" &&
  macruby_install_extract_pkg "${rvm_src_path}/$rvm_ruby_string/$rvm_ruby_string.pkg" "$rvm_ruby_home" ||
  return $?
}

macruby_install_wrapper()
{
  \command \cat <<RubyWrapper
#!/usr/bin/env bash

export DYLD_LIBRARY_PATH="$rvm_ruby_home/usr/lib\${DYLD_LIBRARY_PATH:+:}\${DYLD_LIBRARY_PATH:-}"
export RUBYOPT="\${RUBYOPT:-} $extra_rubyopt"
export GEM_HOME="\${GEM_HOME:-$rvm_ruby_gem_home}"
export GEM_PATH="\${GEM_PATH:-$rvm_ruby_gem_path}"
export MY_RUBY_HOME="$rvm_ruby_home"
export PATH="$rvm_ruby_gem_home/bin:$rvm_ruby_global_gems_path/bin:$rvm_ruby_home/bin:\$PATH"

exec "$rvm_ruby_home/usr/bin/mac$1" "\$@"
RubyWrapper
}

macruby_install_wrap_binaries_detect_rubyopt()
{
  \typeset __path
  extra_rubyopt=""
  for __path in $(
    DYLD_LIBRARY_PATH="$rvm_ruby_home/usr/lib" "$rvm_ruby_home/usr/bin/macruby" -e 'puts $LOAD_PATH'
  )
  do
    [[ "${__path}" == "." ]] ||
    extra_rubyopt+="-I$rvm_ruby_home/usr${__path#*/usr} "
  done
}

macruby_install_fix_shebang()
{
  case "$1" in
    (ruby) return 0 ;; # it's a binary, no fixing needed
  esac
  {
    echo "#!$rvm_ruby_home/usr/bin/macruby"
    __rvm_tail -n +2 "$rvm_ruby_home/usr/bin/mac$1"
  } > "$rvm_ruby_home/usr/bin/mac$1.new"
  mv -f "$rvm_ruby_home/usr/bin/mac$1.new" "$rvm_ruby_home/usr/bin/mac$1"
  chmod +x "$rvm_ruby_home/usr/bin/mac$1"
}

macruby_install_wrap_binary()
{
  binary_name="${binary_name#$rvm_ruby_home/usr/bin/mac}"
  file_name="$rvm_ruby_home/bin/$binary_name"

  if [[ -f "$file_name" ]]
  then \command \rm -f "$file_name"
  fi

  macruby_install_fix_shebang "$binary_name"
  macruby_install_wrapper "$binary_name" > "$file_name"

  [[ -x "$file_name" ]] || chmod +x $file_name
}

macruby_install_wrap_binaries()
{
  mkdir -p "$rvm_ruby_home/bin/" ||
  {
    rvm_error "Can not create binaries directory => $rvm_ruby_home/bin/"
    return 1
  }
  \typeset binary_name extra_rubyopt
  macruby_install_wrap_binaries_detect_rubyopt

  for binary_name in "$rvm_ruby_home/usr/bin"/mac*
  do
    macruby_install_wrap_binary
  done
}

macruby_install()
{
  [[ "Darwin" == "${_system_type}" ]] ||
  {
    rvm_error "MacRuby can only be installed on a Darwin OS."
    exit 1
  }

  if
    (( rvm_head_flag == 1 ))
  then
    rvm_error "macruby-head is temporarily disabled(broken), use macruby-nightly for now."
    return 1

    if (( ${rvm_llvm_flag:=0} == 1 ))
    then "$rvm_scripts_path/package" llvm install
    fi

    macruby_path="/usr/local/bin"
    # TODO: configure & make variables should be set here.
    rvm_ruby_configure=" true "
    rvm_ruby_make="rake"
    rvm_ruby_make_install="$rvm_bin_path/rvmsudo rake install"

    __rvm_db "${rvm_ruby_interpreter}_repo_url" "rvm_ruby_url"

    rvm_ruby_repo_url=$rvm_ruby_url

    __rvm_setup_compile_environment "${rvm_ruby_string}"

    __rvm_install_source $* ||
    {
      result=$?
      rvm_error "There has been an error while trying to install from source. \nHalting the installation."
      return $result
    }
  else
    macruby_path="/Library/Frameworks/MacRuby.framework/Versions/${rvm_ruby_version}/usr/bin"

    rvm_log "Retrieving MacRuby ${rvm_ruby_version} ..."
    "$rvm_scripts_path/fetch" "$rvm_ruby_url" ||
    {
      result=$?
      rvm_error "There has been an error while trying to fetch the source. Halting the installation."
      return $result
    }

    case "$rvm_ruby_package_file" in
      (*.zip)
        __rvm_log_command "install" "Installing package" \
          macruby_install_extract_zip ||
          return $?
        ;;
      (*.pkg)
        __rvm_log_command "install" "Installing package" \
          macruby_install_extract_pkg "${rvm_archives_path}/$rvm_ruby_package_file" "$rvm_ruby_home" ||
          return $?
        ;;
      (*)
        rvm_error "Do not know what to do with archive: ${rvm_archives_path}/$rvm_ruby_package_file"
        return 1
        ;;
    esac
  fi
  macruby_install_wrap_binaries
  __rvm_initial_gemsets_create "$rvm_ruby_home/bin/ruby"
  binaries=()
  __rvm_post_install
}