#!/usr/bin/env bash

#############################################################################
#
# This script tests the cryptopp-android-mk gear using ndk-build. The
# source files include Application.mk and Android.mk.
#
# Written and placed in public domain by Jeffrey Walton and Uri Blumenthal.
#
# Crypto++ Library is copyrighted as a compilation and (as of version 5.6.2)
# licensed under the Boost Software License 1.0, while the individual files
# in the compilation are all public domain.
#
# See http://www.cryptopp.com/wiki/Android.mk_(Command_Line) for more details
#
#############################################################################

# Error checking
if [ ! -d "${ANDROID_NDK_ROOT}" ]; then
    echo "ERROR: ANDROID_NDK_ROOT is not a valid path for ${USER}. Please set it."
    echo "ANDROID_NDK_ROOT is '${ANDROID_NDK_ROOT}'"
    exit 1
fi

# Error checking
if [ ! -d "${ANDROID_SDK_ROOT}" ]; then
    echo "ERROR: ANDROID_SDK_ROOT is not a valid path for ${USER}. Please set it."
    echo "ANDROID_SDK_ROOT is '${ANDROID_SDK_ROOT}'"
    exit 1
fi

# Error checking
if [ -z "$(command -v ndk-build 2>/dev/null)"  ]; then
    echo "ERROR: ndk-build is not on-path for ${USER}. Please set it."
    echo "PATH is '${PATH}'"
    exit 1
fi

# Temp directory
if [[ -z "${TMPDIR}" ]]; then
    TMPDIR="$HOME/tmp"
    mkdir -p "${TMPDIR}"
    if [ -n "${SUDO_USER}" ]; then
        chown -R "${SUDO_USER}" "${TMPDIR}"
    fi
fi

# Sane default
if [[ -z "${MAKE_JOBS}" ]]; then
    MAKE_JOBS=4
fi

# Fixup for sed and "illegal byte sequence"
IS_DARWIN=$(uname -s 2>/dev/null | grep -i -c darwin)
if [[ "${IS_DARWIN}" -ne 0 ]] && [[ -z "${LC_ALL}" ]]; then
    export LC_ALL=C
fi

# Cleanup old artifacts
rm -rf "${TMPDIR}/build.failed" 2>/dev/null
rm -rf "${TMPDIR}/build.log" 2>/dev/null

#############################################################################

# Prepare the environment
unset CXX CPPFLAGS CXXFLAGS LDFLAGS
unset ANDROID_CPPFLAGS ANDROID_CXXFLAGS ANDROID_LDFLAGS ANDROID_SYSROOT

if [[ -e TestScripts/setenv-android.sh ]]; then
    cp TestScripts/setenv-android.sh .
    chmod u+x setenv-android.sh
fi

#############################################################################

files=(Android.mk Application.mk test_shared.hxx test_shared.cxx)

for file in "${files[@]}"; do
    echo "Downloading $file"
    if ! curl -L -s -o "${file}" "https://raw.githubusercontent.com/noloader/cryptopp-android-mk/master/${file}"; then
        echo "${file} download failed"
        exit 1
    fi
    # Permissions
    chmod u=rw,go=r "${file}"
    # Throttle
    sleep 1
done

#############################################################################

# Paydirt
NDK_PROJECT_PATH="$PWD"
NDK_APPLICATION_MK="$PWD/Application.mk"
PLATFORMS=(armeabi-v7a arm64-v8a x86 x86_64)

# Clean all past artifacts
ndk-build APP_ABI=all NDK_PROJECT_PATH="${NDK_PROJECT_PATH}" NDK_APPLICATION_MK="${NDK_APPLICATION_MK}" distclean &>/dev/null

for platform in "${PLATFORMS[@]}"
do
    echo ""
    echo "===================================================================="
    echo "Building for ${platform}..."

    if ndk-build -j "${MAKE_JOBS}" APP_ABI="${platform}" NDK_PROJECT_PATH="${NDK_PROJECT_PATH}" NDK_APPLICATION_MK="${NDK_APPLICATION_MK}" V=1;
    then
        echo "${platform} ==> SUCCESS" >> "${TMPDIR}/build.log"
    else
        echo "${platform} ==> FAILURE" >> "${TMPDIR}/build.log"
        touch "${TMPDIR}/build.failed"
    fi

done

echo
echo "===================================================================="
cat "${TMPDIR}/build.log"

# let the script fail if any of the builds failed
if [ -f "${TMPDIR}/build.failed" ]; then
    exit 1
fi

exit 0