VERSION='7.3.22'
PYVER='3.11'
MIN_OSX_VERSION='10.15'

# https://www.pypy.org/checksums.html
aarch64_hash=c29a8933e2084f52df74c829aa0d8f5652b9d5919f68e9fb89cab3afe35dd884
linux32_hash=6fdad58d6d376810cf6291be1d396032f4da8109517357de0091adc3874f04c9
linux64_hash=c0c239a6b0d381338bcccf852d0690b9daca632e0216389a3796f8817fd66e0e
osarm64_hash=5de96e2b68a8b347fb24f8b3f5345ce0724605d4122ce194e1decce4dab8d5a0
osx64_hash=26adf960b6f57cacb39a9f0e8fd87e9de7986762b467c75b3aaf94177aa7af87

### end of manual settings - following lines same for every download

function err_no_binary {
    local archmsg="${1}"
    local ver="pypy${PYVER}-v${VERSION}-src"
    local url="https://downloads.python.org/pypy/${ver}.tar.bz2"
    { echo
      colorize 1 "ERROR"
      echo ": The binary distribution of PyPy is not available for ${archmsg}."
      echo "try '${url}' to build from source."
      echo
    } >&2
    exit 1
}

function pypy_pkg_data {
    # pypy architecture tag
    local ARCH="${1}"

    # defaults
    local cmd='install_package'  # use bz2
    local pkg="${ARCH}" # assume matches
    local ext='tar.bz2'
    local hash='' # undefined

    # select the hash, fix pkg if not match ARCH
    case "${ARCH}" in
    'linux-aarch64' )
      hash="${aarch64_hash}"
      pkg='aarch64'
      ;;
    'linux' )
      hash="${linux32_hash}"
      pkg='linux32'
      ;;
    'linux64' )
      hash="${linux64_hash}"
      ;;
    'osarm64' )
      hash="${osarm64_hash}"
      pkg='macos_arm64'
      ;;
    'osx64' )
      if require_osx_version "${MIN_OSX_VERSION}"; then
        hash="${osx64_hash}"
        pkg='macos_x86_64'
      else
        err_no_binary "${ARCH}, OS X < ${MIN_OSX_VERSION}"
      fi
      ;;
    * )
      err_no_binary "${ARCH}"
      ;;
    esac

    local basever="pypy${PYVER}-v${VERSION}"
    local baseurl="https://downloads.python.org/pypy/${basever}"

    # result - command, package dir, url+hash
    echo "${cmd}" "${basever}-${pkg}" "${baseurl}-${pkg}.${ext}#${hash}"
}

# determine command, package directory, url+hash
declare -a pd="$(pypy_pkg_data "$(pypy_architecture 2>/dev/null || true)")"

# install
${pd[0]} "${pd[1]}" "${pd[2]}" 'pypy' "verify_py${PYVER//./}" 'ensurepip'