#!/bin/sh
# Keep docs/campaign_dashboard.svg fresh: regenerate every 60 s.
# Failures are appended to tools/plot_progress.log (by this wrapper and by
# plot_progress.py itself) - check that file when the dashboard looks stale.
# The startup banner records WHICH tree this instance watches, so a copy
# launched from a stale checkout (the post-reboot failure mode) is visible.
set -u
dir=$(cd "$(dirname "$0")" && pwd)
log="$dir/plot_progress.log"

if command -v flock >/dev/null 2>&1; then
    exec 9>"$dir/.watch_dashboard.lock"
    flock -n 9 || { echo "[watch_dashboard] another instance already running, exiting" >&2; exit 0; }
fi

echo "[watch_dashboard] $(date '+%F %T') started, watching root=$(cd "$dir/.." && pwd)" >> "$log" 2>/dev/null || true
while :; do
    if ! python3 "$dir/plot_progress.py"; then
        echo "[watch_dashboard] $(date '+%F %T') regeneration failed (see $log)" >&2
        echo "[watch_dashboard] $(date '+%F %T') regeneration failed" >> "$log" 2>/dev/null || true
    fi
    sleep 60
done