#!/usr/bin/env sh
# shellcheck disable=SC2034
dns_joker_info='Joker.com
Site: Joker.com
Docs: github.com/acmesh-official/acme.sh/wiki/dnsapi2#dns_joker
Options:
 JOKER_USERNAME Username
 JOKER_PASSWORD Password
Issues: github.com/acmesh-official/acme.sh/issues/2840
Author: <https://github.com/aattww/>
'

JOKER_API="https://svc.joker.com/nic/replace"

########  Public functions #####################

#Usage: dns_joker_add  _acme-challenge.www.domain.com   "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
dns_joker_add() {
  fulldomain=$1
  txtvalue=$2

  JOKER_USERNAME="${JOKER_USERNAME:-$(_readaccountconf_mutable JOKER_USERNAME)}"
  JOKER_PASSWORD="${JOKER_PASSWORD:-$(_readaccountconf_mutable JOKER_PASSWORD)}"

  if [ -z "$JOKER_USERNAME" ] || [ -z "$JOKER_PASSWORD" ]; then
    _err "No Joker.com username and password specified."
    return 1
  fi

  _saveaccountconf_mutable JOKER_USERNAME "$JOKER_USERNAME"
  _saveaccountconf_mutable JOKER_PASSWORD "$JOKER_PASSWORD"

  if ! _get_root "$fulldomain"; then
    _err "Invalid domain"
    return 1
  fi

  _info "Adding TXT record"
  if _joker_rest "username=$JOKER_USERNAME&password=$JOKER_PASSWORD&zone=$_domain&label=$_sub_domain&type=TXT&value=$txtvalue"; then
    if _startswith "$response" "OK"; then
      _info "Added, OK"
      return 0
    fi
  fi
  _err "Error adding TXT record."
  return 1
}

#fulldomain txtvalue
dns_joker_rm() {
  fulldomain=$1
  txtvalue=$2

  JOKER_USERNAME="${JOKER_USERNAME:-$(_readaccountconf_mutable JOKER_USERNAME)}"
  JOKER_PASSWORD="${JOKER_PASSWORD:-$(_readaccountconf_mutable JOKER_PASSWORD)}"

  if ! _get_root "$fulldomain"; then
    _err "Invalid domain"
    return 1
  fi

  _info "Removing TXT record"
  # TXT record is removed by setting its value to empty.
  if _joker_rest "username=$JOKER_USERNAME&password=$JOKER_PASSWORD&zone=$_domain&label=$_sub_domain&type=TXT&value="; then
    if _startswith "$response" "OK"; then
      _info "Removed, OK"
      return 0
    fi
  fi
  _err "Error removing TXT record."
  return 1
}

####################  Private functions below ##################################
#_acme-challenge.www.domain.com
#returns
# _sub_domain=_acme-challenge.www
# _domain=domain.com
_get_root() {
  fulldomain=$1
  i=1
  while true; do
    h=$(printf "%s" "$fulldomain" | cut -d . -f $i-100)
    _debug h "$h"
    if [ -z "$h" ]; then
      return 1
    fi

    # Try to remove a test record. With correct root domain, username and password this will return "OK: ..." regardless
    # of record in question existing or not.
    if _joker_rest "username=$JOKER_USERNAME&password=$JOKER_PASSWORD&zone=$h&label=jokerTXTUpdateTest&type=TXT&value="; then
      if _startswith "$response" "OK"; then
        _sub_domain="$(echo "$fulldomain" | sed "s/\\.$h\$//")"
        _domain=$h
        return 0
      fi
    fi

    i=$(_math "$i" + 1)
  done

  _debug "Root domain not found"
  return 1
}

_joker_rest() {
  data="$1"
  _debug data "$data"

  if ! response="$(_post "$data" "$JOKER_API" "" "POST")"; then
    _err "Error POSTing"
    return 1
  fi
  _debug response "$response"
  return 0
}