#!/bin/bash
function usage() {
    echo "Usage: ./genpxr.bash [-o <offset>] <process>"
    echo "    where <process> is the index of the subset"
    echo "    of events to simulate in this job. The output"
    echo "    is written to genpxr_<process>.root where"
    echo "    <offset> is added to <process> if it is given."
    exit 1
}

nevents=1000000
ftpserver="nod26.phys.uconn.edu"
ftpdir="/Gluex/simulation/genpxr-9-2021"

source setup_osg.sh

offset=0
process=none
while [ $# -gt 0 ]; do
    if echo $1 | grep -q -- '-'; then
        if [ "$1" = "-o" ]; then
            offset=$2
            shift; shift
        else
            usage
        fi
    else
        process=$1
        break
    fi
done
if [ "$process" = "none" ]; then
    usage
else
    process=`expr $process + $offset`
fi

echo Running process $process on `hostname -s`

root -l -b << EOI
.L genpxr.cxx+O
.x genpxr.C++
h = plot_intensity(1000000, 10000);
f = new TFile("genpxr_${process}.root","create");
h->Write();
.q
EOI
retcode=$?
rm -rf genpxr_[cC]*

if [ $retcode = 0 ]; then
    outfile=genpxr_${process}.root
    srmuri=srm://grinch.phys.uconn.edu/Gluex/simulation/genpxr-9-2021
    outfilepath=file://`pwd`/$outfile
    srmoptions="-2 -overwrite_mode=ALWAYS"
    echo "srmcp $srmoptions $outfilepath $srmuri/$outfile"
    srmcp $srmoptions $outfilepath $srmuri/$outfile && rm genpxr_$process.root
    #uberftp $ftpserver "cd $ftpdir; put genpxr_$process.root" && rm genpxr_$process.root
else
    exit $retcode
fi