#!/bin/bash

set -e

. /usr/lib/wb-utils/wb_env.sh
wb_source "of"

APP_NAME=wb-mqtt-gpio
CONFFILE_NAME=$APP_NAME.conf
CONFFILE=/etc/$CONFFILE_NAME

OLD_APP_NAME=wb-homa-gpio
OLD_CONFFILE_NAME=$OLD_APP_NAME.conf
OLD_CONFFILE=/etc/$OLD_CONFFILE_NAME

function is_installed()
{
    dpkg -s "$1" &> /dev/null
}

function get_version()
{
    dpkg-query --show --showformat '${Version}' "$1"
    is_installed "$1"
}

KERNEL_VERSION=$(get_version linux-image-wb2 || get_version linux-image-wb6 || true)

if [ -z "$KERNEL_VERSION" ]; then
    # wb7 or newer, so no default config
    BOARD_CONF="devicetree"
elif of_node_exists /wirenboard/gpios && dpkg --compare-versions "$KERNEL_VERSION" gt "4.9+wb20181227130340"; then
    BOARD_CONF="devicetree"
else
    # older kernel version contained incomplete gpios devicetree node
    case "$WB_VERSION" in
        "61" | "60" | "58" | "55" | "52" )
            BOARD_CONF="wb${WB_VERSION}"
        ;;

        "50" )
            BOARD_CONF="wbsh5"
        ;;

        "41" )
            BOARD_CONF="wbsh4"
        ;;

        "32" )
            BOARD_CONF="wbsh3"
        ;;

        "KMON1" )
            BOARD_CONF="mka3"
        ;;

        "CQC10" )
            BOARD_CONF="cqc10"
        ;;

        * )
            BOARD_CONF="default"
        ;;
    esac
fi

if [ -f /var/lib/$OLD_APP_NAME/libwbmqtt.db ]; then
    mkdir -p /var/lib/$APP_NAME
    cp /var/lib/$OLD_APP_NAME/libwbmqtt.db /var/lib/$APP_NAME/libwbmqtt.db
fi

if [ -f $OLD_CONFFILE ]; then
    ucf --debconf-ok $OLD_CONFFILE $CONFFILE
    cp -f $OLD_CONFFILE /usr/share/$APP_NAME/$OLD_CONFFILE_NAME.old
    rm -f $OLD_CONFFILE
else
    ucf --debconf-ok "/usr/share/$APP_NAME/$CONFFILE_NAME.$BOARD_CONF" "$CONFFILE"
fi

ln -s $CONFFILE $OLD_CONFFILE

deb-systemd-helper enable wb-mqtt-gpio.service >/dev/null || true

# Automatically added by dh_systemd_start/13.3.4
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
	if [ -d /run/systemd/system ]; then
		systemctl --system daemon-reload >/dev/null || true
		deb-systemd-invoke start 'wb-mqtt-gpio.service' >/dev/null || true
	fi
fi
# End automatically added section