#!/bin/bash

if [ ! -d "$1" ]
then
    echo Usage: uninstall.sh [root_dir] [--purge]
    exit 1
fi

ROOT="${1%/}"

if [ "$2" = "--purge" ]
then
    echo Removing config files.
    if [ -f "$ROOT"/etc/wmbusmeters.conf ]
    then
        rm "$ROOT"/etc/wmbusmeters.conf
        echo conf file: removed "$ROOT"/etc/wmbusmeters.conf
    fi

    if [ -d "$ROOT"/etc/wmbusmeters.d ]
    then
        rm -rf "$ROOT"/etc/wmbusmeters.d
        echo conf dir: removed "$ROOT"/etc/wmbusmeters.d
    fi

    if [ -d "$ROOT"/var/log/wmbusmeters/ ]
    then
        rm -rf "$ROOT"/var/log/wmbusmeters/
        echo log dir: removed "$ROOT"/var/log/wmbusmeters/
    fi

    ID=$(id -u wmbusmeters 2>/dev/null)

    if [ ! "$ID" = "" ]
    then
        userdel wmbusmeters
        echo "user: removed wmbusmeters"
    fi

    if [ $(getent group wmbusmeters) ]
    then
        groupdel wmbusmeters
        echo "group: removed wmbusmeters"
    fi
else
    echo "The option --purge was not supplied."
    echo "Not removing: $ROOT/etc/wmbusmeters.conf"
    echo "Not removing: $ROOT/etc/wmbusmeters.d"
    ID=$(id -u wmbusmeters 2>/dev/null)

    if [ ! "$ID" = "" ]
    then
        echo "Not removing user: wmbusmeters"
    fi

    if [ $(getent group wmbusmeters) ]
    then
        echo "Not removing group: wmbusmeters"
    fi
fi

if [ -x "$ROOT"/usr/bin/wmbusmeters ] || [ -x "$ROOT"/usr/sbin/wmbusmeters ]
then
    rm -f "$ROOT"/usr/bin/wmbusmeters "$ROOT"/usr/sbin/wmbusmetersd
    echo binaries: removed "$ROOT"/usr/bin/wmbusmeters and "$ROOT"/usr/sbin/wmbusmetersd
fi

if [ -f "$ROOT"/usr/share/man/man1/wmbusmeters.1.gz ]
then
    rm "$ROOT"/usr/share/man/man1/wmbusmeters.1.gz
    echo man page: removed "$ROOT"/usr/share/man/man1/wmbusmeters.1.gz
fi

if [ -f "$ROOT"/etc/logrotate.d/wmbusmeters ]
then
    rm "$ROOT"/etc/logrotate.d/wmbusmeters
    echo logrotate file: removed "$ROOT"/etc/logrotate.d/wmbusmeters
fi

if [ -f "$ROOT"/lib/systemd/system/wmbusmeters.service ]
then
    rm "$ROOT"/lib/systemd/system/wmbusmeters.service
    echo systemd: removed "$ROOT"/lib/systemd/system/wmbusmeters.service
fi