#!/bin/bash
#
# Sebastian Kupny
# 2013-02-14
#
############################## GLOBALS #################################
# 0. Predefined parameters
# LIST OF FILES
# which you want analyse, if you leave its empty, then the 
# analysis will be done for all of files in given as a parameter
# path.

MACRO="unpack_kratta_lmd2root.C"
COMMAND="root $MACRO -q -l "
INPUT_DATA_DIR="/lustre/fopi/asyeos/MAY11/"
OUTPUT_DATA_DIR=$PWD

FILE_LIST=(
au400_1670.lmd
au400_1671.lmd
au400_1672.lmd
au400_1673.lmd
)

############################# WAIT FOR USER ###############################
function WaitForUser(){

  # Wait for checking by the user input parameters
  echo "Press [Enter] to continue... or break (press [Ctrl]+[C]) to stop now." 
  read -p ""
  echo "So we are starting now!  "
}
############################ MAIN COMMANDS #############################

FILE_LIST_LEN=${#FILE_LIST[@]}

# 1. Checking input
echo "You launched this program with parameters:"
if [ $# -eq 1 ] ; then
    
   INPUT_DATA_DIR=$1
   echo "OUTPUT_DATA_DIR - default:"
elif  [ $# -eq 2 ] ; then
   INPUT_DATA_DIR=$1
   OUTPUT_DATA_DIR=$2
else
  echo "INPUT_DATA_DIR - default"
  echo "OUTPUT_DATA_DIR - default"
fi

  echo "INPUT_DATA_DIR = $INPUT_DATA_DIR"
  echo "OUTPUT_DATA_DIR = $OUTPUT_DATA_DIR"
  echo "File list contain $FILE_LIST_LEN element/s."
    
WaitForUser

# 2. Start work 
echo "[SCRIPT:] Start"



# MAIN LOOP. 
# NOTE! that loops are (and should be) the same. 
# the code is in both parts, because of the structure of for syntax. 
# If yo can you can correct that.
if [ "${FILE_LIST_LEN} " -eq "0" ]; then
  echo "List is empty - I'm going to analyse all of files in input directory."
  FILE_LIST=`ls $INPUT_DATA_DIR`
  for FILE in $FILE_LIST
  do
    PATHFILE=$INPUT_DATA_DIR/$FILE
    echo "[Script $0:] I'm taking into account a file: $PATHFILE"
    if [[ -f $PATHFILE ]]
    then
      EXTENSION="${FILE##*.}"
      if [ "$EXTENSION" = "lmd" ]; then
        NEWFILE="${FILE%.*}_kratta.root"
        echo  "root -l -q $MACRO( $PATHFILE , $OUTPUT_DATA_DIR/$NEWFILE )"
        root -l -q "$MACRO(\"$PATHFILE\",\"$OUTPUT_DATA_DIR/$NEWFILE\")"
      else
          echo "[SCRIPT $0:] File $FILE with extension $EXTENSION is no accepted. Processing:"
      fi
    fi
  done
else
  echo "List is not empty - I'm going to analyse ${FILE_LIST_LEN} element/s"
  for FILE in "${FILE_LIST[@]}"
  do
    PATHFILE=$INPUT_DATA_DIR/$FILE
    echo "[Script $0:] I'm taking into account a file: $PATHFILE"
    if [[ -f $PATHFILE ]]
    then
      EXTENSION="${FILE##*.}"
      if [ "$EXTENSION" = "lmd" ]; then
        NEWFILE="${FILE%.*}_kratta.root"
        echo  "root -l -q $MACRO( $PATHFILE , $OUTPUT_DATA_DIR/$NEWFILE )"
        root -l -q "$MACRO(\"$PATHFILE\",\"$OUTPUT_DATA_DIR/$NEWFILE\")"
      else
          echo "[SCRIPT $0:] File $FILE with extension $EXTENSION is no accepted. Processing:"
      fi
    fi
  done
fi

# 3. Finish work
echo "[SCRIPT $0:] Done. The data should be in directory:"
echo $OUTPUT_DATA_DIR

################################ END ###################################