#!/bin/sh

TITLE=
LABEL=
ERROR=0
HEIGHT=8
WIDTH=50
PARAMS=
DEFAULT=

while getopts "t:l:d:h:w:rn" option; do
	case "$option" in
		l) LABEL="$OPTARG";;
		t) TITLE="$OPTARG";;
		h) HEIGHT="$OPTARG";;
		w) WIDTH="$OPTARG";;
		n) PARAMS="$PARAMS --defaultno";;
		d)
			if [ -n "$OPTARG" ]; then
				if [ "$OPTARG" = "no" ]; then
					PARAMS="$PARAMS --defaultno"
					DEFAULT="no"
				elif [ "$OPTARG" = "yes" ]; then
					DEFAULT="yes"
				fi
			fi
		;;
		:) ERROR=1;;
		?) ERROR=1;;
	esac
done

if [ $ERROR -eq 1 ]; then
	exit 1
fi

if [ $INTERACTIVE -eq 0 ]; then
	printf "$DEFAULT"
else
	if (whiptail --title "$TITLE" --yesno "$LABEL" $PARAMS $HEIGHT $WIDTH 3>&1 1>&2 2>&3) then
		printf "yes"
	else
		printf "no"
	fi
fi