#!/usr/bin/env bash

set -e

helpFunction() {
  echo ""
  echo "Usage: $0 -f file_path -o output_path"
  echo -e "\t-f file path"
  echo -e "\t-o output path"
  exit 1
}

while getopts "f:o:" opt
do
  case "$opt" in
    f ) filePath="$OPTARG" ;;
    o ) outputPath="$OPTARG" ;;
    ? ) helpFunction ;;
  esac
done

# start
cnt=0
while read -r line; do
  cnt=$(( cnt + 1 ))
  echo -ne "testing $cnt case...    \r"
  if ! rg -q "('|\")$line('|\")" < /dev/null;
  then
    # not found (exit code !== 0)
    echo "$line" >> "$outputPath"
  fi
done < "$filePath"
echo "done.                          "