#!/bin/bash
#################################################################
# This script sets up and runs the online display.
#
# Data gets put in a dir named after the run number in the
# $DATADIRBASE dir (default in ~/data)
# Never overwrite existing data, make a new directory if necessary
# and give it a unique (sequential) number
#
# it is possible to override the default rec.C by putting a symlink
# rec.C in homedir.
# 
# origin: Mikolaj Krzewicki, Nikhef, Mikolaj.Krzewicki@cern.ch
#################################################################

if [ $# -ne 2 ]
then
  echo ""
  echo "  Usage: `basename $0` RunNumber GDCnumber"
  echo ""
  exit 999
fi

DATADIRBASE="/local/home/daq/data/current"
RECMACRO="$ALICE_ROOT/test/cosmic/rec.C"
PROMPTOFFLINEMACRO="/local/home/daq/alisoft/macros/RunPromptOffline.C"

#override the default rec.C if ~/rec.C exists and is symlink
if [ -h $HOME/rec.C ]
then
  echo ""
  echo "~/rec.C will override the default rec.C"
  read -n 1 -p "Do you want to use the new one? [Y/n]" ans
  if [[ $ans == "Y" || $ans == "y" || $ans == "" ]]
  then
    RECMACRO="$HOME/rec.C"
    echo ""
    echo "OK, using $RECMACRO"
    echo ""
  else
    echo ""
    echo "OK, using $RECMACRO"
    echo ""
  fi
fi

# data gets put in a dir named after the run number
DATADIR="${DATADIRBASE}/${1}_OnlineDisplay"

# never overwrite existing data, make a new directory if necessary
# and give it a unique (sequential) number
BIGGESTNUMBER=0
DIRNUMBER=0
if [ -d ${DATADIR} ]
then
  for x in ${DATADIR}*;
  do
    DIRNUMBER=`echo ${x} | sed -e s%${DATADIR}_*%%`
    if [[ ${DIRNUMBER} == "" ]]
    then
      DIRNUMBER="0"
    fi
    if [[ ${DIRNUMBER} -ge ${BIGGESTNUMBER} ]]
    then
      BIGGESTNUMBER=$((DIRNUMBER+1))
    fi
  done
  DATADIR=${DATADIR}_${BIGGESTNUMBER}
fi

#Prepare ang go to the dir
mkdir ${DATADIR}
cp ${RECMACRO} ${DATADIR}
cd ${DATADIR}

xterm -T "Reconstruction run: ${1} GDC: ${2}" -e "cd $DATADIR; aliroot ${PROMPTOFFLINEMACRO}\(${1},${2}\) | tee rec.log"&

#wait some time for data to appear
waitcount=0
runalieve=1
while [ ! -f AliESDs.root ]; do
  waitcount=$((waitcount+1))
  if [[ $waitcount -ge 20000 ]]; then
    runalieve=0
    break
  fi
  echo "reconstruction produced no data yet"
  sleep 2
done

if [[ $runalieve -eq 1 ]]; then
  alieve anyscan_init.C | tee alieve.log
fi