import { getToken, setToken, removeToken } from "./auth";
import { setVersion } from "../utils/version.js";
import { getBaseUrl } from "../utils/version.js";

let baseURL;
setVersion();

let isRefreshing = false;
let subscribers = [];

// 订阅 Token 刷新
function subscribeTokenRefresh(cb) {
  subscribers.push(cb);
}

// 发布 Token 刷新完成
function onRrefreshed(token) {
  subscribers.forEach((cb) => cb(token));
  subscribers = [];
}

// 请求拦截器
const requestInterceptor = (options) => {
  // 获取token
  const token = uni.getStorageSync("accessToken");
  if (token) {
    options.header = {
      ...options.header,
      Authorization: `Bearer ${token}`,
    };
  }

  // #ifdef H5
  // H5端跨域处理
  options.header = {
    ...options.header,
    "Access-Control-Allow-Origin": "*",
  };
  // #endif

  return options;
};

// 响应拦截器
const responseInterceptor = async (options, response, resolve, reject) => {
  const { statusCode, data } = response;
  // 请求成功
  if (statusCode >= 200 && statusCode < 300) {
    return data;
  }

  // 处理错误
  if (statusCode === 401) {
    return await handleUnauthorized(options, resolve, reject);
  }

  // 其他错误
  uni.showToast({
    title: data.message || "请求失败",
    icon: "none",
  });
  return Promise.reject(data);
};
// 创建 uni.request 的封装
// const request = (options) => {
//   return new Promise((resolve, reject) => {
//     uni.request({
//       ...options,
//       success: (res) => {
//         if (res.statusCode === 401) {
//           // 处理 401 逻辑
//           handleUnauthorized(options, resolve, reject)
//         } else {
//           resolve(res)
//         }
//       },
//       fail: (err) => {
//         reject(err)
//       }
//     })
//   })
// }

// 请求方法
const request = async (options, isUpdate) => {
  // 合并配置
  let url = uni.getStorageSync("baseUrl");
  if (uni.getStorageSync("setVersion").VersionCode == "") {
    setVersion();
  }

  if (!url) {
    await new Promise((resolve, reject) => {
      uni.request({
        url: "https://api.mrrwlkj.top/api/openPuc/getSjApiUrl", // 接口地址
        method: "GET", // 请求方法（默认 GET）
        header: {
          "Content-Type": "application/json", // 请求头
          VersionCode: uni.getStorageSync("setVersion").VersionCode,
          DeviceBrand: uni.getStorageSync("setVersion").DeviceBrand,
          DeviceType: uni.getStorageSync("setVersion").DeviceType,
        },
        success: (res) => {
          if (res.data.code == 200) {
            uni.setStorageSync("baseUrl", res.data.data.url);
            url = res.data.data.url;
            resolve(url);
          }
          console.log("请求成功", res.data);
        },
        fail: (err) => {
          console.log("请求失败", err);
        },
        complete: () => {
          console.log("请求完成（无论成功失败都会执行）");
        },
      });
    });
  }

  if (process.env.NODE_ENV === "development") {
    baseURL = url; // 发布到生产环境时，此处代码会被摇树移除掉。
    baseURL = "http://116.63.163.121:93"; // 发布到生产环境时，此处代码会被摇树移除掉。
    //baseURL = 'http://60.247.146.5:96'; // 发布到生产环境时，此处代码会被摇树移除掉。
    //baseURL = 'https://app.mrrweb.com.cn';
  } else {
    baseURL = url; // 发布到生产环境时，此处代码会被摇树移除掉。
    baseURL = "http://116.63.163.121:93"; // 发布到生产环境时，此处代码会被摇树移除掉。
    //baseURL = 'http://60.247.146.5:96'; // 发布到生产环境时，此处代码会被摇树移除掉。
    //baseURL = 'https://app.mrrweb.com.cn';

    console.log("生产环境");
  }

  // 基础配置
  const config = {
    baseURL: baseURL, // APP和H5的开发URL
    baseURL: baseURL, // APP和H5的开发URL
    // baseURL: 'https://app.mrrweb.com.cn', // APP和H5的生产URL

    header: {
      "content-type": "application/json",
      VersionCode: uni.getStorageSync("setVersion").VersionCode,
      DeviceBrand: uni.getStorageSync("setVersion").DeviceBrand,
      DeviceType: uni.getStorageSync("setVersion").DeviceType,
    },
    timeout: 60000, // 超时时间
  };

  options = {
    ...config,
    ...options,
    url: !isUpdate ? `${config.baseURL}${options.url}` : options.url,
  };

  // 请求拦截
  options = requestInterceptor(options);

  // 发起请求
  return new Promise((resolve, reject) => {
    // #ifdef H5
    // H5端添加loading
    if (!options.hideLoading) {
      uni.showLoading({
        title: "加载中...",
      });
    }
    // #endif

    uni.request({
      ...options,
      success: (res) => {
        // #ifdef H5
        if (!options.hideLoading) {
          uni.hideLoading();
        }
        // #endif
        resolve(responseInterceptor(options, res, resolve, reject));
      },
      fail: (err) => {
        // #ifdef H5
        if (!options.hideLoading) {
          uni.hideLoading();
        }
        // #endif

        // 网络错误处理
        let errorMsg = "网络错误，请稍后重试";
        // #ifdef H5
        if (err.errMsg.includes("timeout")) {
          errorMsg = "请求超时，请检查网络";
        }
        // #endif

        uni.showToast({
          title: errorMsg,
          icon: "none",
        });
        reject(err);
      },
    });
  });
};
// 处理 401 未授权
async function handleUnauthorized(originalRequest, resolve, reject) {
  if (!getToken()) {
    return redirectToLogin();
  }
  // 如果正在刷新 Token，将请求加入队列
  if (isRefreshing) {
    return subscribeTokenRefresh((token) => {
      originalRequest.header["Authorization"] = `Bearer ${token}`;
      request(originalRequest, true).then(resolve).catch(reject);
    });
  }

  isRefreshing = true;

  try {
    const newToken = await refreshToken();
    setToken(newToken);
    onRrefreshed(newToken);

    // 用新 Token 重试原始请求
    originalRequest.header["Authorization"] = `Bearer ${newToken}`;
    const response = await request(originalRequest, true);
    // resolve(response)
    return response;
  } catch (error) {
    removeToken();
    redirectToLogin();
    // reject(error)
    return error;
  } finally {
    isRefreshing = false;
  }
}

// 刷新 Token
async function refreshToken() {
  const refreshToken = uni.getStorageSync("refreshToken");
  if (!refreshToken) {
    throw new Error("No refresh token");
  }
  const res = await request({
    url: "/sj/refreshtoken",
    data: {
      refresh_token: uni.getStorageSync("refreshToken"),
      deviceid: getApp().globalData.deviceid,
    },
    method: "POST",
  });

  if (res.state == 1 || res.code == 200) {
    uni.setStorageSync("accessToken", res.access_token);
    uni.setStorageSync("refreshToken", res.refresh_token);
    return res.access_token;
  }

  throw new Error("Refresh token failed");
}

// 跳转到登录页
function redirectToLogin() {
  // uni.reLaunch({
  // 	url: '/pages/login/login'
  // })
  //一键登录测试
  // uni.oprPresentLogin()
  uni.navigateTo({
    url: "/pages/blogPopup/blogPopup",
  });
}

// 导出请求方法
export default {
  // GET请求
  get(url, data = {}, options = {}) {
    return request({
      url,
      data,
      method: "GET",
      ...options,
    });
  },

  // POST请求
  post(url, data = {}, options = {}) {
    return request({
      url,
      data,
      method: "POST",
      ...options,
    });
  },

  // PUT请求
  put(url, data = {}, options = {}) {
    return request({
      url,
      data,
      method: "PUT",
      ...options,
    });
  },

  // DELETE请求
  delete(url, data = {}, options = {}) {
    return request({
      url,
      data,
      method: "DELETE",
      ...options,
    });
  },
};