#!/usr/bin/env bash
source ./env

# Stolen from https://github.com/rust-lang/rust/blob/2e2f53fad/configure#L345.
case $(uname -m) in
  i386 | i486 | i686 | i786 | x86)
      NDK_ARCH="x86"
      ;;
  x86-64 | x86_64 | x64 | amd64)
      NDK_ARCH="x86_64"
      ;;
  *)
      echo "Unknown architecture: $(uname -m)."
      exit 1
      ;;
esac

[[ ! -d "${ANDROID_PREFIX}/.built-${BUILD_IDENTIFIER}" ]] && (mkdir -p "${ANDROID_PREFIX}/.built-${BUILD_IDENTIFIER}" || exit 1)
[[ ! -d "${ANDROID_TOOL_PREFIX}/${BUILD_IDENTIFIER}" ]] && (mkdir -p "${ANDROID_TOOL_PREFIX}/${BUILD_IDENTIFIER}" || exit 1)


case "${NDK_REV}" in
  10*)
      NDK_ARCHIVE="${BASE}/sdk/android-ndk-r${NDK_REV}-$(uname -s | tr '[A-Z]' '[a-z]')-${NDK_ARCH}.bin"
      if [[ ! -d "${BASE}/sdk/${NDK_REL}" ]]; then
           chmod +x "${NDK_ARCHIVE}" || exit 1
           pushd "${BASE}/sdk"
           # Self-extracting binary.
           "${NDK_ARCHIVE}" || exit 1
           popd
      fi
      ;;
  13*)
      NDK_ARCHIVE="$BASE/sdk/android-ndk-r${NDK_REV}-$(uname -s | tr '[A-Z]' '[a-z]')-${NDK_ARCH}.zip"
      if [[ ! -d "${BASE}/sdk/${NDK_REL}" ]]; then
           # Zip archive.
	   pushd "${BASE}/sdk"
           unzip "${NDK_ARCHIVE}" || exit 1

	   #ln -s "/home/gerstrong/apps/android-dev/android-ndk-r${NDK_REV}-$(uname -s | tr '[A-Z]' '[a-z]')-${NDK_ARCH}" android-ndk-r${NDK_REV}-$(uname -s | tr '[A-Z]' '[a-z]')-${NDK_ARCH}

	   popd
      fi
      ;;
  *)
      NDK_ARCHIVE="$BASE/sdk/android-ndk-r${NDK_REV}-$(uname -s | tr '[A-Z]' '[a-z]')-${NDK_ARCH}.tar.bz2"
      if [[ ! -d "${BASE}/sdk/${NDK_REL}" ]]; then
           # Tar archive.
           tar -xf "${NDK_ARCHIVE}" -C "${BASE}/sdk" || exit 1
      fi
      ;;
esac

if [[ ! -f "${ANDROID_PREFIX}/.built-ndk-${BUILD_IDENTIFIER}" ]]; then
    ("${BASE}/sdk/${NDK_REL}/build/tools/make-standalone-toolchain.sh" --force --platform="android-${ANDROID_API_LEVEL}" --install-dir="${ANDROID_TOOL_PREFIX}/${BUILD_IDENTIFIER}" --toolchain="${ANDROID_TOOLCHAIN}" &&\
     touch "${ANDROID_PREFIX}/.built-ndk-${BUILD_IDENTIFIER}") || exit 1
fi