daimp-front/main/src/utils/index.js

/*
 * @Descripttion:
 * @Author: zenghua.wang
 * @Date: 2022-02-23 21:12:37
 * @LastEditors: zenghua.wang
 * @LastEditTime: 2025-02-13 11:28:46
 */
import lodash from 'lodash';
import { Base64 } from 'js-base64';
import JSEncrypt from 'jsencrypt/bin/jsencrypt.min';
import { CONSTANTS } from '@/config';

/**
 * @Title  判断是否 empty,返回ture
 * @param {*} val:null 'null' undefined 'undefined' 0 '0' "" 返回true
 * @returns
 */
export const isEmpty = (val) => {
  if (val && parseInt(val) === 0) return false;
  if (typeof val === 'undefined' || val === 'null' || val == null || val === 'undefined' || val === undefined || val === '') {
    return true;
  } else if (typeof val === 'object' && Object.keys(val).length === 0) {
    return true;
  } else if (val instanceof Array && val.length === 0) {
    return true;
  } else {
    return false;
  }
};
/**
 * @Title 深度拷贝对象
 * @param {*} obj
 * @returns
 */
export const deepClone = (obj = {}) => {
  return lodash.cloneDeep(obj);
};
/**
 * @Title 将number转换为px
 * @param {*} val
 * @returns
 */
export const setPx = (val) => {
  if (isEmpty(val)) return '';
  val = val + '';
  if (val.indexOf('%') === -1) {
    val = val + 'px';
  }
  return val;
};
/**
 * @Title 加密
 * @param {*} n
 * @returns
 */
export const encode = (n, flag = false) => {
  if (flag) {
    return (
      ((e) => {
        let t = e.length.toString();
        for (let n = 10 - t.length; n > 0; n--) t = '0' + t;
        return t;
      })(n) +
      ((e) => {
        const t = Base64.encode(e).split('');
        for (let n = 0; n < Math.floor(e.length / 100 + 1); n++) t.splice(100 * n + 1, 0, 3);
        return t.join('');
      })(n)
    );
  }
  return n;
};
/**
 * @Title 解密
 * @param {*} e
 * @returns
 */
export const decode = (e, flag = false) => {
  if (flag) {
    try {
      const t = Number(e.substr(0, 10));
      const n = e.substr(10).split('');
      for (let i = 0, s = 0; s < Math.floor(t / 100) + 1; s++) {
        n.splice(100 * s + 1 - i, 1);
        i++;
      }
      const o = Base64.decode(n.join(''));
      return o;
    } catch (error) {
      return e;
    }
  }
  return e;
};

/**
 * @Title 加密
 * @param {*} txt
 * @returns
 */
export const encrypt = (txt) => {
  const encryptor = new JSEncrypt();
  encryptor.setPublicKey(CONSTANTS.JS_PUBLICKEY); // 设置公钥
  return encryptor.encrypt(txt); // 对数据进行加密
};

/**
 * @Title 解密
 * @param {*} txt
 * @returns
 */
export const decrypt = (txt) => {
  const encryptor = new JSEncrypt();
  encryptor.setPrivateKey(CONSTANTS.JS_PRIVATEKEY); // 设置私钥
  return encryptor.decrypt(txt); // 对数据进行解密
};

/**
 * @Title 图片转base64
 * @param {*} file
 * @returns
 */
export const imageToBase64 = (file) => {
  return new Promise((resolve, reject) => {
    const reader = new FileReader();
    reader.readAsDataURL(file);
    reader.onload = () => {
      resolve(reader.result);
    };
    reader.onerror = reject;
  });
};
/**
 * @Title bufferToBase64
 * @param {*} buffer
 * @returns
 */
export const bufferToBase64 = (buffer) => {
  return 'data:image/jpeg;base64,' + window.btoa(new Uint8Array(buffer).reduce((data, byte) => data + String.fromCharCode(byte), ''));
};
/**
 * @Title blob转json
 * @param {*} file
 * @returns
 */
export const blobToJSON = (blob) => {
  return new Promise((resolve, reject) => {
    const reader = new FileReader();
    reader.readAsText(blob, 'utf-8');
    reader.onload = () => {
      const res = !isEmpty(reader.result) ? JSON.parse(reader.result) : reader.result;
      resolve(res);
    };
    reader.onerror = reject;
  });
};
/**
 * @Title 将array转化为树
 * @param tree
 * @returns
 */
export const getTree = (tree = []) => {
  tree.forEach((item) => {
    delete item.children;
  });
  const map = {};
  tree.forEach((item) => {
    map[item.id] = item;
  });
  const arr = [];
  tree.forEach((item) => {
    const parent = map[item.parentId];
    if (parent) {
      (parent.children || (parent.children = [])).push(item);
    } else {
      arr.push(item);
    }
  });
  return arr;
};
/**
 * @Title 获取路由中的参数
 * @param name
 * @returns
 */
export const getUrlQuery = (name) => {
  const url = window.location.href;
  const hash = url.substring(url.indexOf('#') + 1);
  const searchIndex = hash.indexOf('?');
  const search = searchIndex !== -1 ? hash.substring(searchIndex + 1) : '';
  const usp = new URLSearchParams(search);
  return usp.get(name);
};
/**
 * @Title 将Object参数转换为字符串
 * @param {*} json
 * @returns
 */
export const obj2Param = (json) => {
  if (!json) return '';
  return Object.keys(json)
    .map((key) => {
      if (isEmpty(json[key])) return '';
      return encodeURIComponent(key) + '=' + encodeURIComponent(json[key]);
    })
    .join('&');
};
/**
 * @Title 获取静态资源文件
 * @param {*} url
 * @returns
 */
export const getAssetsFile = (url) => {
  return new URL(`../assets/${url}`, import.meta.url);
};