#!/bin/sh
set -e

if [ $# -lt 2 ]
then
   echo "usage: $0 [-f] in.grib1 out.grib2"
   echo "-f   convert to grib2 only typeOfLevel='hybrid' and copy other level types as grib1"
   exit 1
fi

grib_filter=@CMAKE_INSTALL_PREFIX@/bin/grib_filter
rules_filter=rules.filter$$

force=0
out=$2
in=$1
while getopts fd:D:t:b:w:e:r:s:n:p: options
do
    case $options in
		f)  force=1
			out=$3
			in=$2
			;;
	esac
done


if [ $force = 1 ]
then

 cat >> $rules_filter <<EOF
 if ( typeOfLevel is 'hybrid' ) {
   set edition=2;
 }
 write;
EOF

else

 cat >> $rules_filter <<EOF
 if ( ! typeOfLevel is 'hybrid' ) {
   print "Error: typeOfLevel='[typeOfLevel]' unable to convert. Only typeOfLevel='hybrid' can be converted.";
   assert( typeOfLevel is 'hybrid' );
 }
 set edition=2;
 write;
EOF

fi

set +e
$grib_filter -o $out  $rules_filter  $in

error=$?

rm -f $rules_filter 

exit $error