#!/bin/bash

#
#  Copyright (c) 2024 Scott Duensing, scott@kangaroopunch.com
#
#  Permission is hereby granted, free of charge, to any person obtaining a copy
#  of this software and associated documentation files (the "Software"), to deal
#  in the Software without restriction, including without limitation the rights
#  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
#  copies of the Software, and to permit persons to whom the Software is
#  furnished to do so, subject to the following conditions:
#
#  The above copyright notice and this permission notice shall be included in
#  all copies or substantial portions of the Software.
#
#  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
#  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
#  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
#  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
#  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
#  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
#  SOFTWARE.
#

#
#  This script is intended for use on Linux and MacOS.
#


SCRIPT_PATH="${BASH_SOURCE}"
while [ -L "${SCRIPT_PATH}" ]; do
	SCRIPT_DIR="$(cd -P "$(dirname "${SCRIPT_PATH}")" >/dev/null 2>&1 && pwd)"
	SCRIPT_PATH="$(readlink "${SCRIPT_PATH}")"
	[[ ${SCRIPT_PATH} != /* ]] && SCRIPT_PATH="${SCRIPT_DIR}/${SCRIPT_PATH}"
done
SCRIPT_PATH="$(readlink -f "${SCRIPT_PATH}")"
SCRIPT_DIR="$(cd -P "$(dirname -- "${SCRIPT_PATH}")" >/dev/null 2>&1 && pwd)"

ROOT=${SCRIPT_DIR}

if [[ -z ${1} ]]; then
	echo No project folder provided.
	exit 1
fi

if ! compgen -G "${1}/src/*.c" > /dev/null; then
	echo No src folder containing C files found.
	exit 1
fi

PYTHON=$(which python)
if [[ $? == 1 ]]; then
	PYTHON=$(which python3)
	if [[ $? == 1 ]]; then
		echo "Unable to find Python 3.x.  Exiting."
		exit 1
	fi
fi

PROJECT="$(cd "$(dirname "$1")"; pwd)/$(basename "$1")"
SOURCE=${PROJECT}/src
BUILD=${PROJECT}/.builddir
NAME=$(basename ${PROJECT})
pushd "${PROJECT}" > /dev/null
	if [[ -d .builddir ]]; then
		rm -rf .builddir
	fi
	mkdir -p .builddir
	cd .builddir
	"${ROOT}/overlay" 5 "${BUILD}" "${SOURCE}"
	if [[ -f "${PROJECT}/f256.ld" ]]; then
		cp -f "${PROJECT}/f256.ld" f256.ld
	fi
	if [[ ! -f f256.ld ]]; then
		cp -f "${ROOT}/llvm-mos/mos-platform/f256/lib/link.ld" f256.ld
	fi
	export PATH=${ROOT}/llvm-mos/bin:${PATH}
	mos-f256-clang -T f256.ld -Wl,-Map=${NAME}.map -o ${NAME} -I"${ROOT}" -Os -Wall -lm *.c
	if [[ $? == 0 ]]; then
		mv ${NAME} ${NAME}.pgz
		llvm-nm ${NAME}.elf > ${NAME}.sym
		llvm-objdump --syms -d --print-imm-hex ${NAME}.elf > ${NAME}.lst
		${PYTHON} ${ROOT}/pgz-thunk.py ${NAME}.pgz
		mv ${NAME}.pgz ../.
	fi
popd > /dev/null