#!/bin/sh

. $(dirname $0)/preload.sh

if [ -z "$1" ] || [ -z "$2" ] || [ -z "$3" ]; then
	zaf_err "zafret valuefile stderrfile retcode [return return_if_null return_if_error]"
	exit 1
fi

value="$(cat $1)"
rm -f $1
shift

stderr="$(cat $1)"
rm -f $1
shift

retcode="$1"
shift

if [ -n "$1" ]; then
	ret="$1"
	shift
fi

if [ -n "$1" ]; then
	retnull="$1"
	shift
fi

if [ -n "$1" ]; then
	reterr="$1"
	shift
fi

if [ "$retcode" != 0 ]; then
	echo "$reterr"
	zaf_wrn "${ITEM_KEY}("$*"): Error code '$retcode', returning '$reterr' ($stderr)"
	exit $retcode
fi

if [ -z "$value" ]; then
	echo "$retnull"
	zaf_wrn "${ITEM_KEY}("$*"): Got empty result, returning '$retnull' ($stderr)"
	exit
fi

echo $value
if [ -n "$stderr" ]; then
	zaf_wrn "${ITEM_KEY}("$*"): $stderr"
fi