#!/bin/bash

#change this to valid ndk path, otherwise it will be downloaded
NDK=/bad/path/to/android-ndk-r10e/
BUILD_PATH=$(pwd)/build_android
#if you have cjdns android app somewhere else then change it
NDK_VERSION="android-ndk-r10e"

case $(uname -s) in
    Darwin)
        TYPE=darwin
        ;;
    Linux)
        TYPE=linux
        ;;
    *)
        TYPE=
        ;;
esac

cpu_arch="$(uname -m)"
[[ -z "$cpu_arch" ]] && {
    echo "ERROR: NO CPU ARCHITECTURE DETECTED"
    exit 1
}
[[ "$cpu_arch" = "i686" ]] \
    && cpu_arch="x86"

android_log=android_build_$$.log
enabled_log=${LOG}

mkdir $BUILD_PATH

if [ "$NDK" == "/bad/path/to/android-ndk-r10e/" ]; then
  if [ ! -d $BUILD_PATH/$NDK_VERSION/ ]; then
    echo "NDK path is not specified. Downloading it..."

    NDK=$BUILD_PATH/$NDK_VERSION/

    ##SETUP NDK
    cd "$BUILD_PATH"
    if [ ! -d "$NDK" ]; then
          echo "$NDK_VERSION-${TYPE}-${cpu_arch}.tar.bz2"
          [[ -f "$NDK_VERSION-${TYPE}-${cpu_arch}.tar.bz2" ]] \
              || wget "http://dl.google.com/android/ndk/$NDK_VERSION-${TYPE}-${cpu_arch}.bin" \
              || (echo "Can't find download for your system"; exit 1)
          [[ -d "$NDK_VERSION" ]] || (chmod a+x "$NDK_VERSION-${TYPE}-${cpu_arch}.bin"; "./$NDK_VERSION-${TYPE}-${cpu_arch}.bin" || exit 1)
    fi

    [[ ! -d "$NDK" ]] && {
        echo "The NDK variable is not pointing to a valid directory"
        exit 1
    }
    cd ..
  else
    NDK=$BUILD_PATH/$NDK_VERSION/
  fi
fi

$NDK/build/tools/make-standalone-toolchain.sh --platform=android-21 --toolchain=arm-linux-androideabi-4.9 --install-dir=$BUILD_PATH/arm-${TYPE}-androideabi/ --system=${TYPE}-${cpu_arch}
$NDK/build/tools/make-standalone-toolchain.sh --platform=android-21 --toolchain=x86-4.9 --install-dir=$BUILD_PATH/i686-${TYPE}-androideabi/ --system=${TYPE}-${cpu_arch}

Seccomp_NO=1

mkdir $(pwd)/android_out
mkdir $(pwd)/android_out/armeabi-v7a
mkdir $(pwd)/android_out/x86

#arm build
rm -rf build_linux

export SYSTEM=linux

export CROSS_COMPILE=$BUILD_PATH/arm-${TYPE}-androideabi/bin/arm-linux-androideabi-
export TARGET_ARCH=arm
export CROSS=${CROSS_COMPILE}
export CC=${CROSS}gcc
export AR=${CROSS}ar
export RANLIB=${CROSS}ranlib
export CFLAGS=${CROSS_CFLAGS}
export LDFLAGS=${CROSS_LDFLAGS}
gcc_version=$(${CC} --version)
echo Using $gcc_version
echo Compiler CC: $CC
echo Compiler CFLAGS: $CFLAGS
echo Compiler LDFLAGS: $LDFLAGS
time ./do
cp cjdroute $(pwd)/android_out/armeabi-v7a/ || ret=$?

if [ "$ret" != "" ] && [ "$ret" != "0" ]; then
  echo -e "\e[1;31mCopying armeabi-v7a binary failed, non zero status returned - $ret\e[0m"
else
  echo -e "\e[1;32mCopied armeabi-v7a successfully\e[0m"
fi

rm cjdroute

#x86 build
rm -rf build_linux

export CROSS_COMPILE=$BUILD_PATH/i686-${TYPE}-androideabi/bin/i686-linux-android-
export TARGET_ARCH=x64
export CROSS=${CROSS_COMPILE}
export CC=${CROSS}gcc
export AR=${CROSS}ar
export RANLIB=${CROSS}ranlib
export CFLAGS=${CROSS_CFLAGS}
export LDFLAGS=${CROSS_LDFLAGS}
gcc_version=$(${CC} --version)
echo Using $gcc_version
echo Compiler CC: $CC
echo Compiler CFLAGS: $CFLAGS
echo Compiler LDFLAGS: $LDFLAGS
time ./do

cp cjdroute $(pwd)/android_out/x86/ || ret=$?

if [ "$ret" != "" ] && [ "$ret" != "0" ]; then
  echo -e "\e[1;31mCopying x86 binary failed, non zero status returned - $ret\e[0m"
else
  echo -e "\e[1;32mCopied x86 successfully\e[0m"
fi

rm cjdroute

echo -e "\n\e[1;34mOutput: $(pwd)/android_out/armeabi-v7a/cjdroute\e[0m"
echo -e "\e[1;34m        $(pwd)/android_out/x86/cjdroute\e[0m"

exit $ret