#!/usr/bin/env bash

# CONSTANTS

BASEDIR=$(dirname "$0")
CONTAINER=''
COMMAND_LINE=()

# FUNCTIONS

function usage {
	echo Usage:
	echo -e "\t$(basename "$0") <CONTAINER_NAME> [--] <COMMAND>"
	echo
	echo "Examples:"
	echo -e "\t$(basename "$0") container1 uptime"
	echo -e "\t$(basename "$0") container1 -- ls -la"
	echo -e "\t$(basename "$0") container1 -- bash <<EOF\n\t\tls -l\n\t\tuptime\n\tEOF"
}

function parse_options {
	while [[ $# -gt 0 ]]; do
		case "$1" in
			--help | -h)
				usage && exit 0
				;;
			--)
				shift 1
				COMMAND_LINE+=("$@")
				break
				;;
			-*)
				# options if any
				echo >&2 "Unknown option: $1" && usage && exit 2
				;;
			*)
				[[ -z $CONTAINER ]] && CONTAINER=$1 || COMMAND_LINE+=("$1")
				;;
		esac
		shift 1
	done

	# echo "CONTAINER=$CONTAINER"
	# echo "COMMAND_LINE=(${COMMAND_LINE[@]})"

	([[ -z $CONTAINER ]] || [[ ${#COMMAND_LINE[@]} == 0 ]]) && usage && exit 1 || true
}

function exec {
	incus exec "$CONTAINER" -- "${COMMAND_LINE[@]}"
}

# MAIN

set -Eue
parse_options "$@"
exec