#!/bin/bash
# preinst script for #PACKAGE#
#
# see: dh_installdeb(1)

set -e

# summary of how this script can be called:
#        * <new-preinst> `install'
#        * <new-preinst> `install' <old-version>
#        * <new-preinst> `upgrade' <old-version>
#        * <old-preinst> `abort-upgrade' <new-version>
# for details, see https://www.debian.org/doc/debian-policy/ or
# the debian-policy package


case "$1" in
    install|upgrade)
        export LOOPBACKv4=$(dig a +short ${HOSTNAME})
        export LOOPBACKv6=$(dig aaaa +short ${HOSTNAME})
        NODEASN=$(dig txt +short asn.${HOSTNAME})
        NODEASN="${NODEASN%\"}"
        NODEASN="${NODEASN#\"}"
        export NODEASN

        if [ -z $LOOPBACKv4 ] || [ -z $LOOPBACKv6 ] || [ -z $NODEASN ]; then
            echo "unable to find my LOOPBACK IP and/or ASN: $LOOPBACKv4/$LOOPBACKv6/$NODEASN"
            exit 2
        fi

        systemctl stop systemd-networkd.socket
        systemctl stop systemd-networkd.service
        systemctl stop systemd-networkd-wait-online
        systemctl disable systemd-networkd.service
        systemctl disable systemd-networkd.socket
        systemctl disable systemd-networkd-wait-online
    ;;

    abort-upgrade)
    ;;

    *)
        echo "preinst called with unknown argument \`$1'" >&2
        exit 1
    ;;
esac

# dh_installdeb will replace this with shell code automatically
# generated by other debhelper scripts.

#DEBHELPER#

exit 0