import Taro from "@tarojs/taro";
import { useEffect, useRef, useState, useCallback } from "react";
import CryptoJS from "crypto-js";
import useStore from "@/store/index";

/**
 *
 * @param {*} hexData
 * @param {*} key
 * @param {*} iv
 * @returns
 */
export const aes128Encrypt = (hexData, key = "23572fb6364ba347f8b441586b632d3f", iv = "") => {
  // 将十六进制字符串转换为字节数组
  var data = CryptoJS.enc.Hex.parse(hexData);
  // 将密钥和 IV（初始向量）转换为字节数组
  var keyBytes = CryptoJS.enc.Hex.parse(key);
  var ivBytes = CryptoJS.enc.Hex.parse(iv);
  // 执行 AES-128 加密，使用 CBC 模式和 PKCS7 填充
  var encrypted = CryptoJS.AES.encrypt(data, keyBytes, {
    iv: ivBytes,
    mode: CryptoJS.mode.ECB,
    padding: CryptoJS.pad.ZeroPadding,
  });
  // 将加密后的字节数组转换为十六进制字符串
  var encryptedHex = encrypted.ciphertext.toString();
  return encryptedHex;
};

/**
 * 解密方法
 * @param data
 * @returns {string}
 */
export function aes128Decrypt(data, key = "23572fb6364ba347f8b441586b632d3f", iv = "") {
  // 十六位十六进制数作为密钥
  const keyBytes = CryptoJS.enc.Hex.parse(key);
  // 十六位十六进制数作为密钥偏移量
  const ivBytes = CryptoJS.enc.Hex.parse(iv);
  const encryptedHexStr = CryptoJS.enc.Hex.parse(data);
  const str = CryptoJS.enc.Base64.stringify(encryptedHexStr);
  const decrypt = CryptoJS.AES.decrypt(str, keyBytes, {
    iv: ivBytes,
    mode: CryptoJS.mode.ECB,
    padding: CryptoJS.pad.NoPadding,
  });
  const decryptedStr = decrypt.toString(CryptoJS.enc.Hex);
  return decryptedStr.toString();
}

/**
 *
 * @param fn 需要防抖的函数
 * @param time 防抖时间
 * @returns
 */

export const debounce = (fn, time = 300) => {
  let timer;
  return function (...argu) {
    if (timer) {
      clearTimeout(timer);
      timer = null;
    }
    timer = setTimeout(() => {
      fn(...argu);
      clearTimeout(timer);
      timer = null;
    }, time);
  };
}