#!/usr/bin/env bash
# Beads sync on session start — designed for 30-50 parallel agents.
#
# Strategy:
# 1. Random jitter (0-30s) to avoid thundering herd on sync
# 2. Try bd sync --full once. If locked, wait and retry once.
# 3. If still locked, skip — the daemon picks it up within 30s.
# 4. Ensure daemon is running (try start, don't stop/restart).
#
# We NEVER delete the sync lock. Lock contention is expected with
# many agents. Retries + daemon provide eventual consistency.
#
# Safe to run on every session — skips if bd or .beads/ not present.
set -euo pipefail
# Skip if bd isn't installed or this isn't a beads project
command -v bd >/dev/null || exit 0
[ -d .beads ] || exit 0
# Background sync with full jitter — non-blocking for ALL sessions.
# 0-30s jitter protects against thundering herd with parallel agents.
# Background means interactive sessions aren't blocked by the wait.
# Daemon provides correctness; this is best-effort staleness reduction.
(
sleep $(( RANDOM % 31 ))
if ! bd sync --full 2>&1; then
sleep $(( 2 + RANDOM % 5 ))
bd sync --full 2>&1 || true
fi
) &
# Ensure daemon is running with auto-sync flags.
# "bd daemon start" is a no-op if already running (exits 0), so safe to call.
# Only restart if the running daemon is missing required flags — this is rare
# (misconfigured daemon) and worth the one-time restart.
DAEMON_FLAGS="--auto-commit --auto-push --auto-pull --interval 30s"
daemon_status="$(bd daemon status 2>&1)" || true
if echo "$daemon_status" | grep -q "running"; then
# Running — only restart if missing a sync flag
if ! echo "$daemon_status" | grep -q 'commit.*push.*pull'; then
bd daemon stop . 2>/dev/null || true
sleep 1
bd daemon start $DAEMON_FLAGS 2>&1 || true
fi
else
bd daemon start $DAEMON_FLAGS 2>&1 || true
fi
