#!/usr/bin/env bash
#
# Get a UGREEN US3000 UPS reporting properly on TrueNAS SCALE
# https://www.zadran.net/guides/ugreen-us3000-ups-on-truenas-scale
# Generated from the guide, last updated 2026-09-12.
#
# NO WARRANTY. This script is provided as is. You are responsible for
# understanding what it does before running it, and for the consequences.
# Take a backup first. See https://www.zadran.net/disclaimer
#
# Destructive steps are left commented out on purpose -- uncomment them
# only once you have understood what they do.

set -euo pipefail

# ---- Set these for your environment ----
# Must be on a pool - the root filesystem is read-only and wiped by updates
INSTALL_DIR='/mnt/tank/apps/ugreen-ups-driver'
# The name NUT knows the UPS by
UPS_NAME='ugreen'
# Port the driver serves the NUT protocol on
NUT_PORT='3494'

lsusb | grep -i 2b89

mkdir -p ${INSTALL_DIR}
cd ${INSTALL_DIR}

cd ${INSTALL_DIR}
git clone https://github.com/meestaben/ugreen-ups-driver.git .

cd ${INSTALL_DIR}
curl -L -o ugreen-ups.zip https://github.com/meestaben/ugreen-ups-driver/archive/refs/heads/main.zip
unzip ugreen-ups.zip
mv ugreen-ups-driver-main/* .
rm -rf ugreen-ups-driver-main ugreen-ups.zip

cd ${INSTALL_DIR}
chmod +x install-ugreen-ups.sh
./install-ugreen-ups.sh install ${INSTALL_DIR}

systemctl status ugreen-ups-driver --no-pager

upsc ${UPS_NAME}@localhost:${NUT_PORT}

journalctl -u ugreen-ups-driver -f

sudo reboot

systemctl status ugreen-ups-driver --no-pager
upsc ${UPS_NAME}@localhost:${NUT_PORT} ups.status

# !! DESTRUCTIVE -- review, then uncomment to run:
# cd ${INSTALL_DIR}
# ./install-ugreen-ups.sh uninstall ${INSTALL_DIR}