#!/usr/bin/env bash

set -Eeuo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"

BACKEND_PID=""
FRONTEND_PID=""
CLEANED_UP=0

cleanup() {
  if [[ "${CLEANED_UP}" -eq 1 ]]; then
    return
  fi
  CLEANED_UP=1

  trap - EXIT INT TERM
  for pid in "${BACKEND_PID}" "${FRONTEND_PID}"; do
    if [[ -n "${pid}" ]] && kill -0 "${pid}" 2>/dev/null; then
      kill "${pid}" 2>/dev/null || true
    fi
  done
  for pid in "${BACKEND_PID}" "${FRONTEND_PID}"; do
    if [[ -n "${pid}" ]]; then
      wait "${pid}" 2>/dev/null || true
    fi
  done
}

trap cleanup EXIT INT TERM

"${SCRIPT_DIR}/run_backend.sh" &
BACKEND_PID=$!

"${SCRIPT_DIR}/run_frontend.sh" &
FRONTEND_PID=$!

echo "前后端调试服务已启动，按 Ctrl+C 同时停止。"
echo "日常开发建议在两个终端分别运行 run_backend.sh 和 run_frontend.sh。"

while true; do
  if ! kill -0 "${BACKEND_PID}" 2>/dev/null; then
    status=0
    wait "${BACKEND_PID}" || status=$?
    echo "平台后端已退出（状态码：${status}），正在停止前端。" >&2
    exit "${status}"
  fi
  if ! kill -0 "${FRONTEND_PID}" 2>/dev/null; then
    status=0
    wait "${FRONTEND_PID}" || status=$?
    echo "平台前端已退出（状态码：${status}），正在停止后端。" >&2
    exit "${status}"
  fi
  sleep 1
done