#!/bin/sh
# ptudor 20200120
set -e

#. /usr/share/debconf/confmodule

setup_user() {

if getent group ubxtool > /dev/null ; then
  echo "galmon: ubxtool group exists, skipping"
else
  echo "galmon: creating ubxtool system group"
  addgroup --system ubxtool
fi

if getent passwd ubxtool > /dev/null ; then
  echo "galmon: ubxtool user exists, skipping"
else
  echo "galmon: creating ubxtool system user"
  adduser --system ubxtool --no-create-home --home /run/ubxtool
  echo "galmon: adding ubxtool user to ubxtool group"
  adduser ubxtool ubxtool
  echo "galmon: adding ubxtool user to dialout group"
  adduser ubxtool dialout
fi
}

restart_ubxtool_daemon() {
# I feel like this belongs in rules with dh_installsystemd but do not understand how to add the wildcard.
if systemctl is-active 'ubxtool@*' > /dev/null ; then
  echo "galmon: restarting ubxtool."
  systemctl daemon-reload && systemctl restart 'ubxtool@*'
else
  echo "galmon: ubxtool services are not currently enabled, not restarting."
fi
}

print_help_text() {
  echo "Galmon installation finished. If this is your first time, please:"
  echo "  1) Create a ubxtool configuration 2) Enable the service"
  echo "  3) Enable the timer for automatic upgrades if you want"
  echo "Replace ttyACM0 below with your device listed in /dev"
  echo "Example: cp /etc/default/galmon /etc/default/ubxtool-ttyACM0"
  echo "Example: vi /etc/default/ubxtool-ttyACM0"
  echo "Example: systemctl enable --now ubxtool@ttyACM0"
  echo "Example: (beta testing) systemctl enable --now galmon-upgrade.timer"
}

setup_user
print_help_text
restart_ubxtool_daemon

#DEBHELPER#