import { isObject } from "@vue/shared";
import * as CryptoJS from "crypto-js";

/**
 * @description 获取元素节点信息（在组件中的元素必须要传ctx）
 * @param  { String } selector 选择器 '.app' | '#app'
 * @param  { Boolean } all 是否多选
 * @param  { ctx } context 当前组件实例
 */
export const getRect = (selector: string, all = false, context?: any) => {
  return new Promise((resolve, reject) => {
    let query = uni.createSelectorQuery();
    if (context) {
      query = uni.createSelectorQuery().in(context);
    }
    query[all ? "selectAll" : "select"](selector)
      .boundingClientRect(function (rect) {
        if (all && Array.isArray(rect) && rect.length) {
          return resolve(rect);
        }
        if (!all && rect) {
          return resolve(rect);
        }
        reject("找不到元素");
      })
      .exec();
  });
};

/**
 * @description 获取当前页面实例
 */
export function currentPage() {
  const pages = getCurrentPages();
  const currentPage = pages[pages.length - 1];
  return currentPage || {};
}

/**
 * @description 后台选择链接专用跳转
 */
interface Link {
  path: string;
  name?: string;
  type: string;
  isTab: boolean;
  query?: Record<string, any>;
}

export enum LinkTypeEnum {
  "SHOP_PAGES" = "shop",
  "CUSTOM_LINK" = "custom",
}

export function navigateTo(
  link: Link,
  navigateType: "navigateTo" | "reLaunch" | "switchTab" = "navigateTo"
) {
  const url = link.query
    ? `${link.path}?${objectToQuery(link.query)}`
    : link.path;
  navigateType == "navigateTo" && uni.navigateTo({ url });
  navigateType == "reLaunch" && uni.reLaunch({ url });
  navigateType == "switchTab" && uni.switchTab({ url });
}

/**
 * @description 是否为空
 * @param {unknown} value
 * @return {Boolean}
 */
export const isEmpty = (value: unknown) => {
  return value == null && typeof value == "undefined";
};

/**
 * @description 对象格式化为Query语法
 * @param { Object } params
 * @return {string} Query语法
 */
export function objectToQuery(params: Record<string, any>): string {
  let query = "";
  for (const props of Object.keys(params)) {
    const value = params[props];
    const part = encodeURIComponent(props) + "=";
    if (!isEmpty(value)) {
      console.log(encodeURIComponent(props), isObject(value));
      if (isObject(value)) {
        for (const key of Object.keys(value)) {
          if (!isEmpty(value[key])) {
            const params = props + "[" + key + "]";
            const subPart = encodeURIComponent(params) + "=";
            query += subPart + encodeURIComponent(value[key]) + "&";
          }
        }
      } else {
        query += part + encodeURIComponent(value) + "&";
      }
    }
  }
  return query.slice(0, -1);
}

/**
 * @description 格式化输出价格
 * @param  { string } price 价格
 * @param  { string } take 小数点操作
 * @param  { string } prec 小数位补
 */
export function formatPrice({ price, take = "all", prec = undefined }: any) {
  let [integer, decimals = ""] = (price + "").split(".");

  // 小数位补
  if (prec !== undefined) {
    const LEN = decimals.length;
    for (let i = prec - LEN; i > 0; --i) decimals += "0";
    decimals = decimals.substr(0, prec);
  }

  switch (take) {
    case "int":
      return integer;
    case "dec":
      return decimals;
    case "all":
      return integer + "." + decimals;
  }
}

/**
 * @description 组合异步任务
 * @param  { string } task 异步任务
 */

export function series(...task: Array<(_arg: any) => any>) {
  return function (): Promise<any> {
    return new Promise((resolve, reject) => {
      const iteratorTask = task.values();
      const next = (res?: any) => {
        const nextTask = iteratorTask.next();
        if (nextTask.done) {
          resolve(res);
        } else {
          Promise.resolve(nextTask.value(res)).then(next).catch(reject);
        }
      };
      next();
    });
  };
}

/**
 * @description 添加单位
 * @param {String | Number} value 值 100
 * @param {String} unit 单位 px em rem
 */
export const addUnit = (value: string | number, unit = "rpx") => {
  return !Object.is(Number(value), NaN) ? `${value}${unit}` : value;
};

/**
 * 自动适配不同的后端架构
 * 1. 例如 /act/oa/task ,在微服务架构保持不变,在单体架构编程 /admin/oa/task
 * 2. 特殊 /gen/xxx ,在微服务架构、单体架构编程 都需保持不变
 *
 * @param originUrl 原始路径
 */
export const adaptationUrl = (originUrl?: string) => {
  // 微服务架构 不做路径转换,为空不做路径转换
  const isMicro = import.meta.env.VITE_IS_MICRO;
  if (isEmpty(isMicro) || isMicro === "true") {
    return originUrl;
  }

  // 验证码服务
  if (originUrl?.startsWith("/code/")) {
    return `/admin${originUrl}`;
  }

  // 如果是代码生成服务，不做路径转换
  if (originUrl?.startsWith("/gen")) {
    return originUrl;
  }
  // 转为 /admin 路由前缀的请求
  return `/admin/${originUrl?.split("/").splice(2).join("/")}`;
};

/**
 *加密处理
 */
export function encryption(src: string, keyWord: string) {
  const key = CryptoJS.enc.Utf8.parse(keyWord);
  // 加密
  const encrypted = CryptoJS.AES.encrypt(src, key, {
    iv: key,
    mode: CryptoJS.mode.CFB,
    padding: CryptoJS.pad.NoPadding,
  });
  return encrypted.toString();
}