#!/usr/bin/env bash
# queue-next.sh — bash-only slot watcher: run queued TASK turns as slots free.
# rc=3 from dispatch = DEFERRED (cap) -> keep waiting on same task, don't exit.
set -uo pipefail
LOGDIR="$HOME/.coordinate/logs"
i=1
while [ $i -le $# ]; do
  task=${!i}
  i=$((i+1))
  slug=$(basename "$task" .md | sed 's/^TASK-[0-9]*-[0-9]*-//')
  while true; do
    n=$(ls /home/_crossfeed/metrics/active/*.pid 2>/dev/null | wc -l)
    [ "$n" -lt 2 ] && break
    sleep 60
  done
  echo "$(date -Is) RUN  $slug" >> "$LOGDIR/queue.status"
  bash "$HOME/.coordinate/scripts/dispatch-turn.sh" "q-$slug" "$task" \
    >> "$LOGDIR/queue-$slug.log" 2>&1
  rc=$?
  if [ "$rc" = 3 ]; then
    echo "$(date -Is) DEFER $slug (cap) - re-queueing" >> "$LOGDIR/queue.status"
    i=$((i-1)); sleep 30; continue
  fi
  echo "$(date -Is) $([ $rc -eq 0 ] && echo OK || echo FAIL) $slug rc=$rc" >> "$LOGDIR/queue.status"
  [ $rc -ne 0 ] && exit $rc
done
echo "$(date -Is) queue complete" >> "$LOGDIR/queue.status"