#!/usr/bin/env bash
# Sourced by runners. Only signal children whose PIDs this runner still owns.
# Clear each PID immediately after wait, so EXIT cannot signal a reused PID.
child_pid=""
redactor_pid=""
sampler_pid=""
proxy_pid=""

cleanup_playable_processes() {
  local status=$? pid round alive
  trap - EXIT
  trap '' HUP INT TERM
  for pid in "$child_pid" "$redactor_pid" "$sampler_pid" "$proxy_pid"; do
    if [ -n "$pid" ]; then kill -TERM "$pid" 2>/dev/null || true; fi
  done
  for ((round=0; round<${process_cleanup_grace_seconds:-10}; round++)); do
    alive=0
    for pid in "$child_pid" "$redactor_pid" "$sampler_pid" "$proxy_pid"; do
      if [ -n "$pid" ] && kill -0 "$pid" 2>/dev/null; then alive=1; fi
    done
    [ "$alive" -eq 1 ] || break
    sleep 1
  done
  for pid in "$child_pid" "$redactor_pid" "$sampler_pid" "$proxy_pid"; do
    if [ -n "$pid" ]; then
      kill -KILL "$pid" 2>/dev/null || true
      wait "$pid" 2>/dev/null || true
    fi
  done
  if [ -n "${fifo:-}" ] && [ -p "$fifo" ]; then rm -f "$fifo"; fi
  return "$status"
}

trap cleanup_playable_processes EXIT
trap 'exit 129' HUP
trap 'exit 130' INT
trap 'exit 143' TERM