#!/usr/bin/env bash

# CONSTANTS

BASEDIR=$(dirname "$0") 

# FUNCTIONS

function usage {
	echo "usage: $(basename "$0") < list-bridges | list-zfs-pools >"
}

function parse_options {
  while [[ $# -gt 0 ]]; do
    case "$1" in
    'list-bridges'|'list-zfs-pools')
      COMMAND=$1
      ;;    	
    --help | -h)
      usage && exit 0
      ;;
    *)
      echo >&2 "Unknown option: $1" && usage && exit 2
      ;;
    esac

    shift 1 # Move to the next argument
  done
}

function assert_command {
	[[ -z ${COMMAND:-} ]] && usage && exit 3
	true
}

function perform {
	case "$COMMAND" in
	'list-bridges')
		pvesh get /nodes/$(hostname)/network --output-format json | jq -r '.[] | select(.type == "bridge") | .iface'
		;;
	'list-zfs-pools')
		pvesm status | grep zfspool | cut -d' ' -f1
		;;
	esac
}


# MAIN

set -Eue
parse_options $*
assert_command
perform