# SPDX-License-Identifier: GPL-3.0-only
# Copyright (c) 2022 Caleb La Grange <thonkpeasant@protonmail.com>
# Copyright (c) 2022 Ferass El Hafidi <vitali64pmemail@protonmail.com>
# Copyright (c) 2020-2025 Leah Rowe <leah@libreboot.org>
# Copyright (c) 2025 Alper Nebi Yasak <alpernebiyasak@gmail.com>

cbfstool="elf/cbfstool/default/cbfstool"
rmodtool="elf/cbfstool/default/rmodtool"

remkdir()
{
	rm -Rf "$1" || $err "remkdir: !rm -Rf \"$1\""
	mkdir -p "$1" || $err "remkdir: !mkdir -p \"$1\""
}

mkrom_tarball()
{
	printf "%s\n" "$version" > "$1/.version" || $err "$1 !version"
	printf "%s\n" "$versiondate" > "$1/.versiondate" || $err "$1 !vdate"

	mktarball "$1" "${1%/*}/${relname}_${1##*/}.tar.xz"
	x_ rm -Rf "$1"
}

mktarball()
{
	[ "${2%/*}" = "$2" ] || x_ mkdir -p "${2%/*}"
	x_ tar -c "$1" | xz -T$XBMK_THREADS -9e > "$2" || $err "mktarball2, $1"
}

mksha512sum()
{
	(
	[ "${1%/*}" != "$1" ] && x_ cd "${1%/*}"
	sha512sum ./"${1##*/}" >> "$2" || $err "!sha512sum \"$1\" > \"$2\""
	) || $err "failed to create tarball checksum"
}

rmgit()
{
	(
	cd "$1" || $err "!cd gitrepo $1"
	find . -name ".git" -exec rm -Rf {} + || $err "!rm .git $1"
	find . -name ".gitmodules" -exec rm -Rf {} + || $err "!rm .gitmod $1"
	) || $err "Cannot remove .git/.gitmodules in $1"
}

# can grab from the internet, or copy locally.
# if copying locally, it can only copy a file.
xbmkget()
{
	_ua="Mozilla/5.0 (Windows NT 10.0; rv:91.0) Gecko/20100101 Firefox/91.0"

	_dlop="curl" && [ $# -gt 4 ] && _dlop="$5"
	cached="$XBMK_CACHE/file/$4"
	dl_fail="n" # 1 url, 2 url backup, 3 destination, 4 checksum
	bad_checksum "$4" "$cached" 2>/dev/null && dl_fail="y"
	[ "$dl_fail" = "n" ] && e "$3" f && return 0
	x_ mkdir -p "${3%/*}" "$XBMK_CACHE/file"
	for url in "$1" "$2"; do
		[ "$dl_fail" = "n" ] && break
		[ -z "$url" ] && continue
		rm -f "$cached" || $err "!rm -f '$cached'"
		if [ "$_dlop" = "curl" ]; then
			curl --location --retry 3 -A "$_ua" "$url" \
			    -o "$cached" || wget --tries 3 -U "$_ua" "$url" \
			    -O "$cached" || continue
		elif [ "$_dlop" = "copy" ]; then
			[ -L "$url" ] && \
				printf "dl %s %s %s %s: '%s' is a symlink\n" \
				    "$1" "$2" "$3" "$4" "$url" 1>&2 && continue
			[ ! -f "$url" ] && \
				printf "dl %s %s %s %s: '%s' not a file\n" \
				    "$1" "$2" "$3" "$4" "$url" 1>&2 && continue
			cp "$url" "$cached" || continue
		else
			$err "$1 $2 $3 $4: Unsupported dlop type: '$_dlop'"
		fi
		bad_checksum "$4" "$cached" || dl_fail="n"
	done
	[ "$dl_fail" = "y" ] && $err "$1 $2 $3 $4: not downloaded"
	[ "$cached" = "$3" ] || x_ cp "$cached" "$3"; :
}

bad_checksum()
{
	[ "$(sha512sum "$2" | awk '{print $1}')" != "$1" ] || return 1
	printf "Bad checksum for file: %s\n" "$2" 1>&2; rm -f "$2" || :; :
}

e()
{
	es_t="e" && [ $# -gt 1 ] && es_t="$2"
	es2="already exists"
	estr="[ -$es_t \"\$1\" ] || return 1"
	[ $# -gt 2 ] && estr="[ -$es_t \"\$1\" ] && return 1" && es2="missing"

	eval "$estr"
	printf "%s %s\n" "$1" "$es2" 1>&2
}

mk()
{
	mk_flag="$1" || $err "No argument given"
	shift 1 && for mk_arg in "$@"; do
		x_ ./mk $mk_flag $mk_arg
	done; :
}

check_defconfig()
{
	[ -d "$1" ] || $err "Target '$1' not defined."
	for x in "$1"/config/*; do
		[ -f "$x" ] && printf "%s\n" "$x" && return 1
	done; :
}