#!/usr/bin/env bash

# CONSTANTS

BASEDIR=$(dirname "$0")
DEBIAN='images:debian/13'
CONTAINER=''

# FUNCTIONS

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


function parse_options {
  while [[ $# -gt 0 ]]; do
    case "$1" in
    --help | -h)
      usage && exit 0
      ;;
    *)
	  if [[ -z $CONTAINER ]]; then
	  	CONTAINER=$1
	  else
        echo >&2 "Unknown option: $1" && usage && exit 2
      fi
      ;;
    esac

    shift 1 # Move to the next argument
  done
  [[ -n $CONTAINER ]] || ( usage && exit 1 )
  
}

function before_start {
	# cold changes
	incus config device add $CONTAINER MIAOU-BASH disk source=/opt/miaou-bash path=/opt/miaou-bash readonly=true | grep -q 'Device MIAOU-BASH added'
	incus config set $CONTAINER environment.PATH /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/opt/miaou-bash/tools
	cat <<EOF | incus file push --uid 0 --gid 0 --mode 644 --create-dirs - $CONTAINER/etc/systemd/resolved.conf.d/10-disable-ipv4-listener.conf
[Resolve]
LLMNR=no
DNSStubListener=no
EOF


}

function after_start {
	# hot changes
	incus exec "$CONTAINER" -- /opt/miaou-bash/init.sh

	local domain=$(incus network get incusbr0 dns.domain)
	domain=${domain:-incus}
	cat <<EOF | incus file push --uid 0 --gid 0 --mode 644 --create-dirs - $CONTAINER/etc/hosts
127.0.1.1	$CONTAINER.$domain $CONTAINER
127.0.0.1	localhost
EOF
}

function create {
	incus create $DEBIAN $CONTAINER
	before_start
	incus start $CONTAINER
	after_start
}


# MAIN

set -Eue
parse_options $* 
create
echo Success