#!/usr/bin/env bash
# Trigger server-backup.service ad-hoc. Refuses if a run is already active
# (the script itself also flock's, but checking here gives a friendlier error).

set -uo pipefail

UNIT=server-backup.service

active=$(systemctl is-active "$UNIT" 2>/dev/null || true)
if [ "$active" = "active" ] || [ "$active" = "activating" ]; then
  echo "ERROR: $UNIT is already $active — refusing to trigger." >&2
  exit 75
fi

# Use --no-block so we return immediately; the dashboard will poll via
# read-status.sh and tail the log to follow progress.
systemctl start --no-block "$UNIT"
echo "Triggered $UNIT. Follow with: journalctl -u $UNIT -f"