#!/usr/bin/env bash

#
#  helper script: build coreboot images with various payloads
#
#	Copyright (C) 2014,2015,2016,2020,2021,2023 Leah Rowe
#							<info@minifree.org>
#	Copyright (C) 2015 Klemens Nanni <contact@autoboot.org>
#	Copyright (C) 2022 Caleb La Grange <thonkpeasant@protonmail.com>
#
#	This program is free software: you can redistribute it and/or modify
#	it under the terms of the GNU General Public License as published by
#	the Free Software Foundation, either version 3 of the License, or
#	(at your option) any later version.
#
#	This program is distributed in the hope that it will be useful,
#	but WITHOUT ANY WARRANTY; without even the implied warranty of
#	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#	GNU General Public License for more details.
#
#	You should have received a copy of the GNU General Public License
#	along with this program.  If not, see <http://www.gnu.org/licenses/>.
#

# This script assumes that the working directory is the root
# of git or release archive

[ "x${DEBUG+set}" = 'xset' ] && set -v
set -u -e

projectname="$(cat projectname)"
opts=""
boards=""
firstoption="${1}"

main()
{
	if [ $# -lt 1 ]; then
		usage
		exit 1
	fi

	if [ "${firstoption}" = "help" ]; then
		usage
		exit 0
	fi
	if [ "${firstoption}" = "list" ]; then
		listboards
		exit 0
	fi

	while [[ $# > 0 ]]; do
		case ${1} in
			-d)
			opts+=" -d ${2}"
			shift ;;
			-p)
			opts+=" -p ${2}"
			shift ;;
			-k)
			opts+=" -k ${2}"
			shift ;;
			*)
			boards+=" ${1} " ;;
		esac
		shift
	done

	if [ -z ${opts+x} ]; then
		opts=""
	fi

	printf "Building %s ROM images\n" "${projectname}"

	if [ "${firstoption}" = "all" ]; then
		for boardname in $(listboards); do
			buildrom "${boardname}" \
					|| die "build/roms: error"
		done
	else
		for board in ${boards}; do
			buildrom "${board}" \
					|| die "build/roms: error"
		done
	fi

	printf "\n\nDone! Your ROMs are in bin/\n\n"
}

usage()
{
	cat <<- EOF
	USAGE:	./build boot roms boardname
	To build *all* boards, do this: ./build boot roms all
	To list *all* boards, do this: ./build boot roms list
	
	Optional Flags:
	-d: displaymode
	-p: payload
	-k: keyboard layout

	Example commands:
		./build boot roms x60
		./build boot roms x200_8mb x60
		./build boot roms x60 -p grub -d corebootfb -k usqwerty

	possible values for 'boardname':
	$(listboards)

	Refer to the ${projectname} documentation for more information.
	EOF
}

listboards()
{
	for boarddir in resources/coreboot/*; do
		if [ ! -d "${boarddir}" ]; then
			continue
		fi
		board="${boarddir##resources/coreboot/}"
		board="${board%/}"
		printf '%s\n' "${board##*/}"
	done
}

# Build ROM images for supported boards
buildrom() {
	board="$1"

	# Start by building blobs and placing them in the
	# coreboot tree only for boards that need them
	./blobutil download ${board} || exit 1

	if [ -d "resources/coreboot/${board}/" ]; then
		./build boot roms_helper "${board}${opts}"
	else
		printf "\nbuild/roms: target not defined: %s\n" ${board}
		die "Run: ./build boot roms list"
	fi
}

die() {
	printf 'Error: %s\n' "${@}" 1>&2
	exit 1
}

main $@