#!/bin/bash
# FILE:       	wgapi:back/lib/wg/user/list
# DESCRIPTION:	List all devices from all users
# USAGE:      	list json|tsv
# ERRORS:
# 	3: bad usage
# 	4: nslookup failed
# 	5: Config not found
# 	6: wg failed

CONFIG_FILE='/etc/wgapi/config'
[ ${#} -eq 1 ] || exit 3
[ -f "${CONFIG_FILE}" ] || exit 5
source "${CONFIG_FILE}"
#/usr/bin/wg show ${TLD} allowed-ips

/usr/bin/wg show "${TLD}" allowed-ips \
	| while IFS=$' ' read -r pubkey ipv4 ipv6; do
		ipv4="${ipv4%%/*}"
		ipv6="${ipv6%%/*}"
		domain="$("${LIB_DIR}/ns_lookup_rdns" "${ipv4}")" || exit 4
		username="$(<<<"${domain}" cut -d'.' -f2)"
		hostname="$(<<<"${domain}" cut -d'.' -f1)"
		case "${2}" in
		#TODO Remove json keys with empty ("") values
		'json') printf '{"domain":"%s.%s.%s","ipv4":"%s","ipv6":"%s","pubkey":"%s}"},' \
				"${hostname}" "${username}" "${TLD}" "${ipv4}" "${ipv6}" "${pubkey}";
		*) printf '%s.%s.%s\t%s\t%s\t%s\n' \
				"${hostname}" "${username}" "${TLD}" "${ipv4}" "${ipv6}" "${pubkey}";;
		fi
	done | sed 's/,$//' # Remove trailing comma from json