#!/usr/bin/env bash
# stop.sh — detiene uno o todos los agentes en ejecución
#
# Uso:
#   ./dev-scripts/stop.sh                   # detiene todos los que estén corriendo
#   ./dev-scripts/stop.sh assistant-bot     # detiene uno específico

source "$(dirname "$0")/_common.sh"

TARGET="${1:-}"
stopped=0

while IFS='|' read -r id _version _enabled _desc _cfg; do
  [[ -n "$TARGET" && "$id" != "$TARGET" ]] && continue

  if ! is_running "$id"; then
    dim "  $id  (no está corriendo)"
    continue
  fi

  # Kill ALL instances, not just the one in the PID file
  all_pids="$(find_agent_pids "$id")"
  instance_count="$(echo "$all_pids" | grep -c . 2>/dev/null || echo 0)"

  if [[ "$instance_count" -gt 1 ]]; then
    warn "$id  has $instance_count instances running — stopping all"
  fi

  # Send SIGTERM to all instances
  for p in $all_pids; do
    kill -TERM "$p" 2>/dev/null || true
  done

  # Wait up to 5s for graceful shutdown
  for _ in {1..10}; do
    remaining="$(find_agent_pids "$id")"
    [[ -z "$remaining" ]] && break
    sleep 0.5
  done

  # SIGKILL any survivors
  survivors="$(find_agent_pids "$id")"
  if [[ -n "$survivors" ]]; then
    warn "$id  no respondió a SIGTERM, enviando SIGKILL..."
    for p in $survivors; do
      kill -9 "$p" 2>/dev/null || true
    done
  fi

  rm -f "$(pid_file "$id")"
  ok "$id  detenido  ($instance_count instance(s) stopped)"
  ((stopped++)) || true

done < <(list_agents_raw)

[[ "$stopped" -eq 0 && -z "$TARGET" ]] && dim "Ningún agente estaba corriendo."
[[ -n "$TARGET" && "$stopped" -eq 0 ]] && fail "Agente '$TARGET' no encontrado o no estaba corriendo."

true