#!/bin/sh
. /etc/functions

bootdir=$1
add=$2

get_menu_option() {
	echo "+++ Select your boot option:"
	n=0
	while read option
	do
		parse_option
		n=`expr $n + 1`
		echo "$n. $name [$kernel]"
	done < /tmp/usb_menu.txt

	read \
		-p "Choose the boot option [1-$n, a to abort]: " \
		option_index

	if [ "$option_index" = "a" ]; then
		recovery "Aborting boot attempt"
	fi

	option=`head -n $option_index /tmp/usb_menu.txt | tail -1`
	parse_option
}

confirm_menu_option() {
	echo "+++ Please confirm the boot details for $name:"
	echo $option

	read \
		-n 1 \
		-p "Confirm selection by pressing 'y': " \
		option_confirm
	echo
}

parse_option() {
	name=`echo $option | cut -d\| -f1`
	kernel=`echo $option | cut -d\| -f3`
}

echo "+++ Scanning USB media boot options"
for i in `find $bootdir -name "*.cfg"`; do usb-parse-boot $i >> /tmp/usb_options.txt; done
if [ ! -r /tmp/usb_options.txt ]; then
	recovery "Failed to parse any boot options"
fi
sort /tmp/usb_options.txt | uniq > /tmp/usb_menu.txt

option_confirm=""
while [ "$option_confirm" != "y" ]
do
	get_menu_option
	confirm_menu_option
done

usb-boot -b $bootdir -e "$option" -a "intel_iommu=on $add" -r "quiet"