#!/usr/bin/env bash

# CONSTANTS

CONTAINER_NAME=$1

# FUNCTIONS

function usage {
	echo "$(basename "$0") <CONTAINER_NAME>|--all"
}

function lookup {
	if [[ $CONTAINER_NAME == "--all" ]]; then
		pct-list
	else
		conf=$(grep -m1 -rl --include="*.conf" "^hostname: $CONTAINER_NAME$" /etc/pve/lxc/) && conf=${conf#/etc/pve/lxc/} && conf=${conf%.conf}
		[[ -z $conf ]] && (echo >&2 "ERROR: container <$CONTAINER_NAME> not found!" && exit 10)
		echo $conf
	fi
}

# MAIN

set -Eue
[[ "$#" -lt 1 ]] && usage && exit 1
lookup