#!/bin/bash

      printf "***************************\n"
      printf "* Find modified to txt,tar*\n"
      printf "* --dir=your_dir          *\n"
      printf "* --day=modified_day      *\n"
      printf "* --to=text,tar           *\n"
      printf "* --exclude=text,tar      *\n"
      printf "***************************\n"

      ## variable to init
      to="text"

while [ $# -gt 0 ]; do
  case "$1" in
    --dir=*)
      dir="${1#*=}"
      ;;
    --day=*)
      day="${1#*=}"
      ;;
    --exclude=*)
      exclude="${1#*=}"
      ;;
    --to=*)
      to="${1#*=}"
      ;;
    *)
      printf "***************************\n"
      printf "* Error: Invalid argument.*\n"
      printf "***************************\n"
      exit 1
  esac
  shift
done

IFS=', ' read -r -a array <<< "$exclude"

not_path='-path ./changes.tar.gz -o -path ./changes.log.txt '
var_i=0

for element in "${array[@]}"
do
	#if [ $var_i -eq 0 ]
	#then
	#	not_path+="-path '${element//,/}' "
	#else
		not_path+="-o -path '${element//,/}' "
	#fi
	var_i+=1
done

#echo "$dir"
#echo "$day"
#echo "$not_path"

findchanges(){

  if [ $to == "tar" ]
  then
	 eval "find $dir -mtime -$day -not \( $not_path \) -type f -print | tar -cvzf changes.tar.gz -T -"
  else
	 eval "find $dir -mtime -$day -not \( $not_path \) -type f -print >> changes.log.txt"
  fi

}

findchanges