#!/bin/bash
set -f

MAXDEPTH="-maxdepth 1"
HIDDEN="-not -path */\.*"
KEYS="awk {gsub(/\//,\"_\",\$1);print}"
ME=$( basename "$0" )
HELP='Create an array _index for Anduril of the given folder.

Usage: '$ME' [-anr] [path]
  -a Include ".*" hidden files
  -n Use number for key
  -r Recursively find all files in path, exclude folder names from output
  
'

while getopts ":anrh" opt; do
  case $opt in
    a)
      HIDDEN=""
      ;;
    n)
      KEYS='awk $1=NR'
      ;;
    r)
      MAXDEPTH="-type f"
      ;;
    h)
      echo "$HELP"
      exit 0
      ;;
    \?)
      echo "Invalid option: -$OPTARG" >&2
      echo "$HELP" >&2
      exit 1
      ;;
  esac
done
shift $((OPTIND-1))
INPATH="$1"
[ -z "$INPATH" ] && INPATH=.

echo -e '"Key"'"\t"'"File"'
find "$INPATH" -mindepth 1 $MAXDEPTH $HIDDEN -not -name _index -printf '"%P"\t"%P"\n' \
 | sort -V | $KEYS