#!/bin/bash
# =====================================================
# run.sh — 打包并前台运行 wind_power（后端托管前端 SPA）
#
# 流程：package.sh 打包 → 从 runtime/wind_power/ 启动 wind_server
#       （后端同时提供 /api 与 SPA 静态资源，即“前后端一起跑”）
#
# 开发模式前端热更新：
#   ./run.sh                            # 后端托管生产前端，监听 :8848
#   cd frontend/web_app && npm run dev  # 前端 dev :5173，/api 代理到 :8848
#
# 参考: edge_collector/run_cloud.sh
# =====================================================

set -euo pipefail

ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
APP_DIR="${ROOT_DIR}/runtime/wind_power"
BIN_NAME="wind_server"

stop_existing_processes() {
    local pids=()
    mapfile -t pids < <(pgrep -x "${BIN_NAME}" 2>/dev/null || true)
    if [ "${#pids[@]}" -eq 0 ]; then
        return
    fi

    echo "[run] 终止旧进程 ${BIN_NAME} PID: ${pids[*]}"
    kill "${pids[@]}" 2>/dev/null || true

    for _ in {1..20}; do
        mapfile -t pids < <(pgrep -x "${BIN_NAME}" 2>/dev/null || true)
        if [ "${#pids[@]}" -eq 0 ]; then
            echo "[run] 旧进程已退出"
            return
        fi
        sleep 0.2
    done

    echo "[run] 旧进程未正常退出，强制终止 PID: ${pids[*]}"
    kill -9 "${pids[@]}" 2>/dev/null || true
    sleep 0.5
}

# 1. 终止旧进程
stop_existing_processes

# 2. 打包（传递额外参数，如 --build-type Debug）
echo "[run] 打包..."
bash "${ROOT_DIR}/package.sh" "$@"

# 3. 启动
cd "${APP_DIR}"
mkdir -p logs data
export LD_LIBRARY_PATH="${APP_DIR}/libs${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}"

echo "[run] 启动 ${BIN_NAME} ..."
./${BIN_NAME} &
SERVER_PID=$!

echo ""
echo "========================================"
echo "  wind_power 已启动"
echo "  PID: ${SERVER_PID}"
echo "  工作目录: ${APP_DIR}"
echo "  访问: http://localhost:8848  (Ctrl+C 停止)"
echo "========================================"

# 4. 等待退出信号
cleanup() {
    echo ""
    echo "[run] 正在停止..."
    kill "${SERVER_PID}" 2>/dev/null || true
    wait "${SERVER_PID}" 2>/dev/null || true
    echo "[run] 已停止"
}
trap cleanup SIGINT SIGTERM

wait "${SERVER_PID}" 2>/dev/null || true