import { request } from "@/utils/request";

// 生成并缓存 device_id
function getOrCreateDeviceId() {
  let deviceId = uni.getStorageSync("device_id");
  if (!deviceId) {
    deviceId = Date.now() + "_" + Math.random().toString(36).substr(2, 9);
    uni.setStorageSync("device_id", deviceId);
  }
  return deviceId;
}

// 获取网络类型
function getNetworkType() {
  return new Promise((resolve) => {
    uni.getNetworkType({
      success: (res) => resolve(res.networkType || "unknown"),
      fail: () => resolve("unknown"),
    });
  });
}

// 获取系统平台
function getSystemInfo() {
  return new Promise((resolve) => {
    uni.getSystemInfo({
      success: (res) => resolve(res),
      fail: () => resolve({}),
    });
  });
}

// 获取当前页面路径
function getCurrentPagePath() {
  const pages = getCurrentPages();
  const currentPage = pages[pages.length - 1];
  return currentPage?.route || "";
}

function getMiniProgramVersion() {
  const platform = process.env.UNI_PLATFORM;
  let version = "";
  let envVersion = "";

  try {
    if (platform === "mp-weixin") {
      // 微信小程序
      const info = wx.getAccountInfoSync();
      version = info?.miniProgram?.version || "";
      envVersion = info?.miniProgram?.envVersion || "";
    } else if (platform === "mp-alipay") {
      // 支付宝小程序
      const info = my.getAppInfoSync();
      version = info?.version || "";
    } else if (platform === "mp-toutiao" || platform === "mp-jd") {
      // 抖音/头条/京东小程序
      const info = tt.getAccountInfoSync?.();
      version = info?.miniProgram?.version || "";
      envVersion = info?.miniProgram?.envVersion || "";
    } else if (platform === "mp-baidu") {
      // 百度小程序（无标准方法获取版本号）
      version = ""; // 百度不支持获取版本号
    } else {
      version = "";
    }
  } catch (e) {
    version = "";
    envVersion = "";
  }

  return {
    platform, // 当前小程序平台
    version, // 小程序版本号
    envVersion, // develop / trial / release（微信等支持）
  };
}

// 构造埋点对象
async function buildEventData(
  eventName,
  eventType = "click",
  customParams = {}
) {
  const deviceId = getOrCreateDeviceId();
  const systemInfo = await getSystemInfo();
  const networkType = await getNetworkType();
  // const location = await getLocation()
  const appVersion = typeof plus !== "undefined" ? plus?.runtime?.version : "";
  const { envVersion, platform, version } = getMiniProgramVersion();

  return {
    userId: uni.getStorageSync("user_id") || null,
    deviceId: deviceId,
    eventName: eventName,
    eventType: eventType,
    eventTime: new Date(),
    page: getCurrentPagePath(),
    elementId: customParams.element_id || null,
    elementContent: customParams.element_content || null,
    customParams: customParams,
    networkType: networkType,
    os: systemInfo.platform || "unknown",
    appVersion: version || "unknown",
    envVersion: envVersion || "",
    platform: platform || "",
  };
}

// 发送埋点数据到服务器
async function sendTrack(eventName, eventType = "click", customParams = {}) {
  const eventData = await buildEventData(eventName, eventType, customParams);
  request({
    url: "/api/common/tracking/create",
    method: "POST",
    data: eventData,
  });
}

export default {
  sendTrack,
};