const chokidar = require("chokidar");
const { exec } = require("child_process");
const path = require("path")

exports.parseK6StdoutTable = function (text) {
  const keysToKeep = new Set([
    "checks_total",
    "checks_succeeded",
    "checks_failed",
    "browser_data_received",
    "browser_data_sent",
    "browser_http_req_duration",
    "browser_http_req_failed",
    "browser_web_vital_cls",
    "browser_web_vital_fcp",
    "browser_web_vital_ttfb",
    "checks",
    "data_received",
    "data_sent",
    "iteration_duration",
    "iterations",
    "vus",
    "vus_max",
  ]);

  const lines = text.split("\n");
  const result = {};

  for (let line of lines) {
    line = line.replace(/^[✓×\s]+/, ""); // 去掉开头 ✓ × 空格

    if (!line.includes(":")) continue;

    let [keyPart, valPart] = line.split(":");
    if (!valPart) continue;

    const key = keyPart.trim().replace(/\.+$/, "");
    if (!keysToKeep.has(key)) continue;

    valPart = valPart.trim();

    if (/(\w+\()?=/.test(valPart)) {
      const stats = {};
      const regex = /([^\s=]+)=([^\s]+)/g;
      let match;
      while ((match = regex.exec(valPart)) !== null) {
        stats[match[1]] = match[2];
      }
      result[key] = stats;
    } else {
      const parts = valPart.split(/\s+/);

      if (parts.length === 4 && parts[2].endsWith("/s")) {
        result[key] = {
          value: parts[0] + " " + parts[1],
          rate: parts[2] + " " + parts[3],
        };
      } else if (parts.length === 2 && parts[1].endsWith("/s")) {
        result[key] = {
          value: parts[0],
          rate: parts[1],
        };
      } else {
        result[key] = valPart;
      }
    }
  }

  return result;
};

exports.watchClient = () => {
  const watchPath = path.join(__dirname, '../client/src');

  // 初始化 watcher
  const watcher = chokidar.watch(watchPath, {
    ignored: /(^|[\/\\])\../, // 忽略隐藏文件
    persistent: true,
  });

  // 添加事件监听
  watcher
    .on("add", (path) => runScript(`新增文件：${path}`))
    .on("change", (path) => runScript(`文件修改：${path}`))
    .on("unlink", (path) => runScript(`删除文件：${path}`));

  // 你想在文件变更后执行的脚本（例如执行某个命令）
  function runScript(changeInfo) {
    console.log(`[触发] ${changeInfo}`);

    // 例如执行 build 脚本或 shell 命令
    exec("cd ../client && npm run build", (error, stdout, stderr) => {
      if (error) {
        console.error(`执行出错: ${error.message}`);
        return;
      }
      if (stderr) {
        console.error(`stderr: ${stderr}`);
      }
      console.log(`stdout: ${stdout}`);
    });
  }
};