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/**
 * AES JSON formatter for CryptoJS
 * @link https://github.com/brainfoolong/cryptojs-aes-php
 * @version 2.1.1
 */
import CryptoJS from 'crypto-js';

const CryptoJSAesJson = {
  /**
   * Encrypt any value
   * @param {*} value
   * @param {string} password
   * @return {string}
   */
  encrypt: function (value, password) {
    return CryptoJS.AES.encrypt(JSON.stringify(value), password, {
      format: CryptoJSAesJson
    }).toString();
  },
  /**
   * Decrypt a previously encrypted value
   * @param {string} jsonStr
   * @param {string} password
   * @return {*}
   */
  decrypt: function (jsonStr, password) {
    return JSON.parse(
      CryptoJS.AES.decrypt(jsonStr, password, {
        format: CryptoJSAesJson
      }).toString(CryptoJS.enc.Utf8)
    );
  },
  /**
   * Stringify cryptojs data
   * @param {Object} cipherParams
   * @return {string}
   */
  stringify: function (cipherParams) {
    const j = { ct: cipherParams.ciphertext.toString(CryptoJS.enc.Base64) };
    if (cipherParams.iv) j.iv = cipherParams.iv.toString();
    if (cipherParams.salt) j.s = cipherParams.salt.toString();
    return JSON.stringify(j).replace(/\s/g, '');
  },
  /**
   * Parse cryptojs data
   * @param {string} jsonStr
   * @return {*}
   */
  parse: function (jsonStr) {
    const j = JSON.parse(jsonStr);
    const cipherParams = CryptoJS.lib.CipherParams.create({
      ciphertext: CryptoJS.enc.Base64.parse(j.ct)
    });
    if (j.iv) cipherParams.iv = CryptoJS.enc.Hex.parse(j.iv);
    if (j.s) cipherParams.salt = CryptoJS.enc.Hex.parse(j.s);
    return cipherParams;
  }
};

export default CryptoJSAesJson;