#!/bin/bash
#
# pdns-tools
# https://git.stack-source.com/msb/pdns-tools
# Copyright (c) 2024 Matthew Saunders Brown <matthewsaundersbrown@gmail.com>
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)

# load include file
source /usr/local/sbin/pdns.sh

help()
{
  echo "List Zones exists that are in DNS and associated with this server."
  echo ""
  echo "usage: $thisfilename [-q <query>] [-h]"
  echo ""
  echo "  -h            Print this help."
  echo "  -q <query>    Optional search term."
  echo "                Can be a domain, or a partial string with * for wildcard."
  echo "                If using wildcard put the query in single quotes. e.g.:"
  echo "                $thisfilename (returns all domains)."
  echo "                $thisfilename -q example.com (returns domain example.com, if found)."
  echo "                $thisfilename -q '*example*' (returns any domain with example as part of the name)."
}

pdns:getoptions "$@"

if [[ -z $query ]]; then
  query=*
fi

SEARCH=($(/usr/local/sbin/pdns-search.sh -q hostname=$hostname/$query -c))

# check for header row output, this indicates one or more results were found
if [[ "${SEARCH[0]}" = "content,name,object_type,type,zone,zone_id" ]]; then
  # sort results
  readarray -td '' SORTED < <(printf '%s\0' "${SEARCH[@]}" | sort -z)
  # echo header and remove header row
  echo zone
  # check each row to verify data and output zone (domain) if it validates
  for ROW in "${SORTED[@]}"; do
    # turn row into array
    readarray -d , -t row_array < <(echo $ROW)
    # get zone, strip ending dot
    zone=$(sed 's/.$//' <<< "${row_array[4]}")
    # compare row to expected/valid result
    if [[ $ROW = "hostname=$hostname/$zone,$zone.,comment,SOA,$zone.,$zone." ]]; then
      # got a match
      echo $zone
    fi
  done
fi