#!/bin/sh
# SPDX-License-Identifier: GPL-2.0-or-later

set -e

CONF_DIR="/etc/moxa/moxa-power-manager"
UC3400A_CONF="${CONF_DIR}/model.conf.d/UC-3400A.conf"

case "$1" in
    upgrade)
        # Back up old-format conf before dpkg installs the new one.
        # The backup is read by the migration script in postinst.
        if [ -n "$2" ] && dpkg --compare-versions "$2" lt "2.0.0" \
                && grep -q "^\[active_mode\]" "$UC3400A_CONF" 2>/dev/null; then
            cp "$UC3400A_CONF" "${UC3400A_CONF}.old"
        fi
        ;;
esac

#DEBHELPER#

exit 0
