BuildNative

#!/bin/bash
set -eu
# set -x

cd `dirname $0`
BASE_DIR=$PWD
export DYNCALL_HOME=$BASE_DIR/dyncall

DYNCALL_DIFF=$BASE_DIR/src/main/cpp/bridj/dyncall.diff

if [[ ! -d "$DYNCALL_HOME" ]]
then
	$BASE_DIR/admin/checkout_and_patch_dyncall.sh $DYNCALL_DIFF || failed "Failed to checkout and patch dyncall"
fi

cd $DYNCALL_HOME
if which hg 2>/dev/null ; then
	hg diff > $DYNCALL_DIFF
fi
cd $BASE_DIR


UNAME_ARCH=`uname -m`
UNAME_OS=`uname -s | sed s/_NT-.*/_NT/`

function get_arch() {
    if [[ "$UNAME_OS" == "SunOS" ]]; then
        if [ "`isainfo -n`" = "amd64" ]; then
		    echo "x64"
	    else
		    echo "x86"
	    fi
    # elif [[ "$UNAME_OS" == "Darwin" ]]; then
	  #   echo "universal"
    else
        case $UNAME_ARCH in
        i86pc|i386|i486|i586|i686|x86)
	        echo x86
	        ;;
        x86_64|amd64)
	        echo x64
	        ;;
				aarch64)
					echo arm64
					;;
        arm*)
			    if [[ -d /lib/arm-linux-gnueabihf ]] ; then
	        	echo "armhf"
						# echo "arm32v7"
						# echo "arm"
	        elif [[ -d /lib/arm-linux-gnueabi ]] ; then
	        	echo "armel"
						# echo "arm32v5"
    	    else
    		    failed "Unknown Linux arm flavour: please edit $0 and Platform.java"
	        fi
	        ;;
        esac
    fi
}

function get_os() {
    case $UNAME_OS in
    WindowsNT)
	    echo "windows"
	    ;;
    Darwin)
	    echo "darwin"
	    ;;
    Linux)
	    echo "linux"
	    ;;
    SunOS)
	    echo "sunos"
	    ;;
    OpenBSD)
	    echo "openbsd"
	    ;;
    FreeBSD|GNU/kFreeBSD)
	    echo "freebsd"
	    ;;
    NetBSD)
	    echo "netbsd"
	    ;;
    esac
}

function build_libraries() {
	local OS="$1"
	local ARCH="$2"
	shift 2

	local CMAKE_FLAGS=( "$@" )
	local RESOURCES=()
	local TEST_RESOURCES=()

	# if [[ "${FAST:-0}" != "1" ]]; then
	# 	mvn generate-sources
	# fi

	if [[ "$OS" == "android" ]]; then
		$BASE_DIR/src/main/cpp/bridj/MakeAndroid.sh $@
		return 0
	fi

	if [[ "${DEBUG:-0}" == "1" ]]; then
		CMAKE_FLAGS+=( -DCMAKE_BUILD_TYPE=Debug )
	else
		CMAKE_FLAGS+=( -DCMAKE_BUILD_TYPE=RelWithDebInfo )
		# CMAKE_FLAGS+=( -DCMAKE_BUILD_TYPE=Release )
	fi

	case "$OS" in
		windows)
			# CMAKE_FLAGS+=( -G "Visual Studio 17 2022" )
			# case "$ARCH" in
			# 	x86)
			# 		CMAKE_FLAGS+=( -A Win32 )
			# 		;;
			# 	x64)
			# 		CMAKE_FLAGS+=( -A x64 )
			# 		;;
			# 	arm)
			# 		CMAKE_FLAGS+=( -A ARM )
			# 		;;
			# 	arm64)
			# 		CMAKE_FLAGS+=( -A ARM64 )
			# 		;;
			# 	*)
			# 		echo "Unknown arch: $ARCH" >&2
			# 		exit 1
			# esac
			RESOURCES+=( bridj.dll )
			TEST_RESOURCES+=( test.dll dependsOnTest.dll )
			;;
		darwin)
			case "$ARCH" in
				x64)
					CMAKE_FLAGS+=( -DCMAKE_OSX_ARCHITECTURES=x86_64 )
					;;
				arm64)
					CMAKE_FLAGS+=( -DCMAKE_OSX_ARCHITECTURES=arm64 )
					;;
				universal)
					echo "WARNING: Universal builds don't work yet as JDK does not have fat binaries"
					CMAKE_FLAGS+=( -DCMAKE_OSX_ARCHITECTURES="x86_64 arm64" )
					;;
			esac
			RESOURCES+=( libbridj.dylib )
			TEST_RESOURCES+=( libtest.dylib libdependsOnTest.dylib )
			;;
		*)
			RESOURCES+=( libbridj.so )
			TEST_RESOURCES+=( libtest.so libdependsOnTest.so )
			;;
	esac

	OS_ARCH=${OS}_${ARCH}
	OUT=$BASE_DIR/target/$OS_ARCH
	if [[ "${DEBUG:-0}" == "1" ]]; then
		OUT="${OUT}_debug"
	fi

	echo "# Building for $OS on $ARCH into $OUT with cmake flags ${CMAKE_FLAGS[*]}"

	mkdir -p $OUT
	cd $OUT
	if [[ "${CMAKE:-1}" != "0" ]]; then
		cmake ../.. "${CMAKE_FLAGS[@]}"
	fi

	# TODO: Different command for VS build on Windows
	make -j10

	echo "Copying resources for $OS_ARCH"
	# RESOURCES_DEST=$BASE_DIR/target/classes/org/bridj/lib/$OS_ARCH
	# TEST_RESOURCES_DEST=$BASE_DIR/target/test-classes/org/bridj/lib/$OS_ARCH
	# RESOURCES_DEST=$BASE_DIR/target/generated-resources/org/bridj/lib/$OS_ARCH
	# TEST_RESOURCES_DEST=$BASE_DIR/target/generated-test-resources/org/bridj/lib/$OS_ARCH
	RESOURCES_DEST=$BASE_DIR/src/main/resources/org/bridj/lib/$OS_ARCH
	TEST_RESOURCES_DEST=$BASE_DIR/src/test/resources/org/bridj/lib/$OS_ARCH

	mkdir -p "$RESOURCES_DEST"
	mkdir -p "$TEST_RESOURCES_DEST"
	cp "${RESOURCES[@]}" "$RESOURCES_DEST"
	cp "${TEST_RESOURCES[@]}" "$TEST_RESOURCES_DEST"
}

if [[ -z "${OS:-}" ]]; then
	OS="$(get_os)"
fi

if [[ "${ARCH:-all}" == "all" ]]; then
	case $OS in
		sunos)
			build_libraries sunos x86 "$@"
			build_libraries sunos x64 "$@"
			;;
		windows)
			# See README.md on how to download the JDKs needed here
			build_libraries windows x64 -DFORCE_JAVA_HOME=${JAVA_HOME_X64} "$@"
			build_libraries windows arm64 -DFORCE_JAVA_HOME=${JAVA_HOME_ARM64} "$@"
			;;
		darwin)
			build_libraries darwin x64 "$@"
			build_libraries darwin arm64 "$@"
			;;
		*)
			ARCH="$(get_arch)"
			build_libraries $OS $ARCH "$@"
	esac
else
	ARCH=${ARCH:-$(get_arch)}
	build_libraries $OS $ARCH "$@"
fi