#!/usr/bin/env bash

set -e

cd "$(dirname "$0")"

# 加载本地 .env（如果存在），便于在开发环境下配置 WECHAT_UPSTREAM_BASE_URL 等
if [ -f ".env" ]; then
  set -o allexport
  # shellcheck disable=SC1091
  . ./.env
  set +o allexport
fi

FRONTEND_PORT=${FRONTEND_PORT:-3000}
BACKEND_PORT=${BACKEND_PORT:-8000}
UPSTREAM_URL=${WECHAT_UPSTREAM_BASE_URL:-http://your-wechat-server-host:port}

# 自动结束占用端口的进程（macOS / Linux 通用）
kill_port() {
  local port=$1
  local pids
  pids=$(lsof -ti :"${port}" 2>/dev/null || true)
  if [ -n "$pids" ]; then
    echo "Killing process(es) on port ${port}: ${pids}"
    echo "$pids" | xargs kill -9 2>/dev/null || true
  fi
}

echo "Checking ports ${FRONTEND_PORT} and ${BACKEND_PORT}..."
kill_port "${FRONTEND_PORT}"
kill_port "${BACKEND_PORT}"
sleep 1

echo "Using ports: frontend=${FRONTEND_PORT}, backend=${BACKEND_PORT}"
echo "WECHAT_UPSTREAM_BASE_URL=${UPSTREAM_URL}"

echo "Ensuring Python venv and backend deps..."

if [ ! -d ".venv" ]; then
  python3 -m venv .venv
fi

source .venv/bin/activate
pip install -r backend/requirements.txt >/dev/null

echo "Ensuring Node dependencies..."
npm install >/dev/null

echo "Starting FastAPI backend on :${BACKEND_PORT}..."
WECHAT_UPSTREAM_BASE_URL="${UPSTREAM_URL}" uvicorn backend.main:app --host 0.0.0.0 --port "${BACKEND_PORT}" &
BACKEND_PID=$!

echo "Starting Node frontend dev server on :${FRONTEND_PORT}..."
PORT="${FRONTEND_PORT}" BACKEND_PORT="${BACKEND_PORT}" npm run dev &
FRONTEND_PID=$!

trap 'echo "Stopping dev servers..."; kill ${BACKEND_PID} ${FRONTEND_PID} 2>/dev/null || true' INT TERM

# On macOS /posix sh, wait -n is not available; wait on both instead.
wait "${BACKEND_PID}"
wait "${FRONTEND_PID}"