#!/bin/sh
# Garmin Health Lab — DSM boot script.
# Mirrors the convention already used by S99frpc.sh on this NAS.
APP=/volume1/web/garmin-health-lab
RUNAS=ericwyuan
# Kept inside the app dir, not /var/run: the service runs as an unprivileged
# user, which cannot write there.
PIDFILE="$APP/app.pid"

start() {
  if [ -f "$PIDFILE" ] && kill -0 "$(cat "$PIDFILE")" 2>/dev/null; then
    echo "already running (pid $(cat "$PIDFILE"))"
    return 0
  fi
  # Runs as the owning user: the service needs nothing privileged and its
  # .env holds database and API credentials.
  # setsid + closed stdio so it survives the invoking shell and never holds
  # an SSH session open.
  if [ "$(id -un)" = "$RUNAS" ]; then
    sh "$APP/deploy/start.sh" >/dev/null 2>&1 </dev/null
  else
    su - "$RUNAS" -c "sh $APP/deploy/start.sh" >/dev/null 2>&1 </dev/null
  fi
  sleep 2
  echo "started (pid $(cat "$PIDFILE" 2>/dev/null))"
}

stop() {
  [ -f "$PIDFILE" ] && kill "$(cat "$PIDFILE")" 2>/dev/null
  rm -f "$PIDFILE"
  pkill -f "gunicorn.*8124" 2>/dev/null
  echo "stopped"
}

case "$1" in
  start)   start ;;
  stop)    stop ;;
  restart) stop; sleep 2; start ;;
  status)
    if [ -f "$PIDFILE" ] && kill -0 "$(cat "$PIDFILE")" 2>/dev/null; then
      echo "running (pid $(cat "$PIDFILE"))"
    else
      echo "not running"
    fi ;;
  *) echo "Usage: $0 {start|stop|restart|status}" ;;
esac