#!/bin/bash

function changeFile {
# This will need improvement...
 sed -i 's/The address of MC.*/The address of MC deletedPart/g' $1
 sed -i 's/Process id:.[0-9]*/Process id: deletedPart/g' $1
 sed -i 's/process id:.[0-9]*/process id: deletedPart/g' $1
 sed -i 's/operations:.[0-9]*/operations: deletedPart/g' $1
 sed -i 's/context switches:.[0-9]*/context switches: deletedPart/g' $1
 sed -i 's/time:..[0-9]*\..[0-9]*/time: deletedPart/g' $1
 sed -i 's/ttcn3-portconn.*/ttcn3-portconn deletedPart/g' $1
 sed -i 's/ - / /g' $1
 sed -i 's/Version:..[0-9]*\..[0-9]*\..*\./Version: deletedPart/g' $1
 sed -i 's/size:..[0-9]*/size: deletedPart/g' $1
 sed -i 's/I\/O:..[0-9]*/I\/O: deletedPart/g' $1
}

if [ "$1" = "-h" ]; then
 echo "Usage diffLogs dir1/ dir2/"
 echo "In case of no params, . will be used"
 echo "The aim of this script is to compare ttcn3 log files made with different titan versions."
 echo "The .diff and .lo2 files are generated into dir1/"
 exit 1
fi

if [ "$1" = "" ]; then
 MYVAL="."
 echo "Will use . as start"
else
 MYVAL=$1
fi

if [ ! -d "$1" ]; then
 echo "$1 does not exists"
 exit 1
fi

find $MYVAL -maxdepth 1 -type f \( -name "*.log" \) -print0 | while read -d $'\0' file
do
    cut -d' ' -f3- $file > "${file%%.???}.lo2"
    changeFile "${file%%.???}.lo2"
done


if [ "$2" != "" ]; then
 if [ ! -d "$2" ]; then
  echo "$2 does not exists"
  exit 1
 fi
 
 rm -f $1/*.diff
 
 MYVAL=$2
 find $MYVAL -maxdepth 1 -type f \( -name "*.log" \) -print0 | while read -d $'\0' file
 do
    cut -d' ' -f3- $file > "${file%%.???}.lo2"
    changeFile "${file%%.???}.lo2"
    basename=`basename "$file"`
    
    diff "${file%%.???}.lo2" $1/${basename%.*}.lo2  >> $1/${basename%.*}.diff
    
    if [ -s "$1/${basename%.*}.diff" ]; then
      echo "File differs.. : " $1${basename%.*}.diff
      echo "File differs.. : " $1${basename%.*}.diff >> $1/diffLogs.diff
    fi
 done 
 
 if [ ! -s $1/diffLogs.diff ]; then
   echo "Log Files are identical, yuhu!!"
   exit 0
 else
   exit 1
 fi
fi