#!/bin/sh

bios='n1mur48w'
sha='7f6baa5728ab72f8a1f1053dc6a2312142c051dd'
logo_dir_url='https://romanzolotarev.com/tp'
logo_gif='logo.gif'

test -n "$1" || {
	echo "usage: $0 <disk>" >&2
	exit 1
}

disk="$1"

disklabel "$disk" 2>/dev/null | grep -q "$disk" || {
	echo "fail: $disk not found"
	exit 1
}

(
	cd /tmp || exit 1

	test -f "${bios}.iso" ||
		ftp -V "https://download.lenovo.com/pccbbs/mobiles/${bios}.iso"

	echo "SHA1 ($bios.iso) = $sha" >"${bios}.sha"
	sha256 -C "$bios.sha" "$bios.iso" ||
		exit 1

	df | grep -q "/dev/${disk}i" && {
		echo "fail: /dev/${disk}i already mounted" >&2
		exit 1
	}

	geteltorito -h 2>/dev/null ||
		pkg_add -x geteltorito

	test -f "$bios.img" ||
		geteltorito -o "${bios}.img" "${bios}.iso" 2>/dev/null

	dd if="${bios}.img" of="/dev/r${disk}c" bs=1m 2>/dev/null

	mkdir -p "/mnt/${disk}i"
	mount "/dev/${disk}i" "/mnt/${disk}i"
	ftp -V "$logo_dir_url/$logo_gif"
	cp "$logo_gif" "/mnt/${disk}i/FLASH/LOGO.GIF"
	umount "/dev/${disk}i"
)