#!/bin/bash

function prepare_generation {
	local config_file="./rs-config"
	local copy_dest=$1

	if [[ ! -f "${config_file}" ]]; then
		echo "There is no config file(${config_file})."
		exit 1
	fi

	sed -i 's@^export BUILD_REQUIRED_INSTALLED_PATH=.*$@export BUILD_REQUIRED_INSTALLED_PATH="/"@' "${config_file}"
	sed -i 's@^export GBS_BUILDROOT=.*$@export GBS_BUILDROOT="'${copy_dest}'"@' "${config_file}"
}

function generate_rootstrap_ix86 {
	./script/convert32.sh
	if [[ $? -ne 0 ]]; then
		echo "Failed to convert .xml files into 32-bit."
		return $?
	fi

	./make_rootstrap.sh -C rs-config ./rs_resource --emulator -A i686
	RET=$?
	if [[ ${RET} -ne 0 ]]; then
		echo "Failed to create rootstrap."
	fi

	return ${RET}
}

function generate_rootstrap_x86_64 {
	./script/convert64.sh
	if [[ $? -ne 0 ]]; then
		echo "Failed to convert .xml files into 64-bit"
		return $?
	fi

	./make_rootstrap_64.sh -C rs-config ./rs_resource --emulator -A x86_64
	RET=$?
	if [[ ${RET} -ne 0 ]]; then
		echo "Failed to create rootstrap."
	fi

	return ${RET}
}

function generate_rootstrap_arm {
	./script/convert32.sh
	if [[ $? -ne 0 ]]; then
		echo "Failed to convert .xml files into 32-bit."
		return $?
	fi

	./make_rootstrap.sh -C rs-config ./rs_resource --target -A arm
	RET=$?
	if [[ ${RET} -ne 0 ]]; then
		echo "Failed to create rootstrap."
	fi

	return ${RET}
}

function generate_rootstrap_aarch64 {
	./script/convert64.sh
	if [[ $? -ne 0 ]]; then
		echo "Failed to convert .xml files into 64-bit"
		return $?
	fi

	./make_rootstrap_64.sh -C rs-config ./rs_resource --target -A aarch64
	RET=$?
	if [[ ${RET} -ne 0 ]]; then
		echo "Failed to create rootstrap."
	fi

	return ${RET}
}

function generate_rootstrap_riscv64 {
	./script/convert64.sh
	if [[ $? -ne 0 ]]; then
		echo "Failed to convert .xml files into 64-bit"
		return $?
	fi

	./make_rootstrap_64.sh -C rs-config ./rs_resource --target -A riscv64
	RET=$?
	if [[ ${RET} -ne 0 ]]; then
		echo "Failed to create rootstrap."
	fi

	return ${RET}
}

function generate_rootstrap {
	local arch=$1
	local rootstrap_type=$2
	local rootstrap_resource_dir="./rs_resource"

	rm -rf "${rootstrap_resource_dir}"
	cp -r "/tmp/rs_resource/${ROOTSTRAP_TYPE}" "${rootstrap_resource_dir}"

	case "${arch}" in
		"arm")
			generate_rootstrap_arm
			return $?
			;;
		"aarch64")
			generate_rootstrap_aarch64
			return $?
			;;
		"i386")
			generate_rootstrap_ix86
			return $?
			;;
		"x86_64")
			generate_rootstrap_x86_64
			return $?
			;;
		"riscv64")
			generate_rootstrap_riscv64
			return $?
			;;
		*)
			echo "Architecture not supported: ${arch}"
			exit 1
			;;
	esac
}

ARCH=$1
ROOTSTRAP_TYPE=$2
COPY_DEST=$3

if [[ -z "${ARCH}" ]] || [[ -z "${ROOTSTRAP_TYPE}" ]] || [[ -z "${COPY_DEST}" ]]; then
	echo "3 parameters are required: <architecture> <rootstrap type> <generate destination>"
	exit 1
fi

prepare_generation "${COPY_DEST}"
generate_rootstrap "${ARCH}" "${ROOTSTRAP_TYPE}"