#!/bin/bash
# author : sjn + apr
# date : July.2017

BINDIR=$(dirname `which bedops`)
[ -n "${2}" ] && BINDIR=${2}

CMD="switch-BEDOPS-binary-type"

help()
{
    echo "Switch the BEDOPS binary build to typical, megarow, or float128"
    echo "Usage: ${CMD} [ --help ] [ --typical | --megarow | --float128 ] [ <binary-directory> (optional) ]" >&2
    exit $1
}

TYPICAL=false
MEGAROW=false
FLOAT128=false

cntr=0

OPTSPEC=":tmfh-:"
while getopts "$OPTSPEC" OPTCHAR; do
    case "${OPTCHAR}" in
        -)
            case "${OPTARG}" in
                typical)
                    ((cntr+=1))
                    TYPICAL=true
                    ;;
                megarow)
                    ((cntr+=1))
                    MEGAROW=true
                    ;;
                float128)
                    ((cntr+=1))
                    FLOAT128=true
                    ;;
                help)
                    help 0
                    ;;
                *)
                    help 1
                    ;;
            esac;;
        t)
            ((cntr+=1))
            TYPICAL=true
            ;;
        m)
            ((cntr+=1))
            MEGAROW=true
            ;;
        f)
            ((cntr+=1))
            FLOAT128=true
            ;;
        h)
            help 0
            ;;
        *)
            help 1
            ;;
    esac
done

if [[ "$cntr" -ne "1" ]]
then
    help 1
fi

if ${MEGAROW}
then
    TYPE=megarow
fi
if ${TYPICAL}
then 
    TYPE=typical
fi
if ${FLOAT128}
then
    TYPE=float128
fi

echo $BINDIR
for SRCNAME in `find ${BINDIR} -maxdepth 1 -mindepth 1 -type f -name "*${TYPE}" -print0 | xargs -L1 -0 -I{} sh -c 'basename {}'`
do
    DESTNAME=`echo ${SRCNAME} | perl -Tpe 's/-'${TYPE}'//'`
    ln -sf ${BINDIR}/${SRCNAME} ${BINDIR}/${DESTNAME}
done

exit 0
