barcodeinterpret

#!/bin/bash
# interpret Interleaved 2/5 barcode 58 byte barcode values used by the ProBell tape management system

scriptdir=$(dirname "${0}")
. "${scriptdir}/mmfunctions" || { echo "Missing '${scriptdir}/mmfunctions'. Exiting." ; exit 1 ;};

cleanup(){
    _log -a "Process aborted"
    exit 1
}

trap cleanup SIGHUP SIGINT SIGTERM
_log -b

if test $# != 1 ; then
    echo "You must supply one argument, a scanned interleaved 2/5 barcode value"; exit
fi

barcode="${1}"

translatebyte()
{
    val=$(echo $1 | echo $(cut -c $2-$3) + 32 | bc)
    if [ "$val" = 131 ] ; then
        echo 9 | awk '{printf("%c", $0);}'
    else
        echo $val | awk '{printf("%c", $0);}'
    fi
}
addcolons()
{
    echo $(echo $1 | cut -c 1-2):$(echo $1 | cut -c 3-4):$(echo $1 | cut -c 5-6):$(echo $1 | cut -c 7-8)
}

get_ids()
{
    barcode=$1
    c00=$(translatebyte $barcode 2 3)
    c01=$(translatebyte $barcode 4 5)
    c02=$(translatebyte $barcode 6 7)
    c03=$(translatebyte $barcode 8 9)
    c04=$(translatebyte $barcode 10 11)
    c05=$(translatebyte $barcode 12 13)
    c06=$(translatebyte $barcode 14 15)
    c07=$(translatebyte $barcode 16 17)
    c08=$(translatebyte $barcode 18 19)
    c09=$(translatebyte $barcode 20 21)
    c10=$(translatebyte $barcode 22 23)
    c11=$(translatebyte $barcode 24 25)
    c12=$(translatebyte $barcode 26 27)
    c13=$(translatebyte $barcode 28 29)
    c14=$(translatebyte $barcode 30 31)
    c15=$(translatebyte $barcode 32 33)
    c16=$(translatebyte $barcode 34 35)
    c17=$(translatebyte $barcode 36 37)
    c18=$(translatebyte $barcode 38 39)
    c19=$(translatebyte $barcode 40 41)
    echo $c00$c01$c02$c03$c04$c05$c06$c07$c08$c09$c10$c11$c12$c13$c14$c15$c16$c17$c18$c19
}

ids=$(get_ids $barcode)

materialid=$(echo $ids | cut -d ' ' -f 2)
if [[ $(echo "$materialid" | tail -c +9 | head -c 1) == "H" ]] ; then
   materialid="${materialid}D"
fi
echo deviceid,$(echo $ids | cut -d ' ' -f 1),materialid,$materialid,som,$(addcolons $(echo $barcode | cut -c 42-49)),duration,$(addcolons $(echo $barcode | cut -c 50-57))
_log -e