Global-sales/wai-server/core/baileys/helper.js

const { isJidUser, isLidUser, isJidBroadcast, jidDecode, S_WHATSAPP_NET } = require('@whiskeysockets/baileys');

const encodeJid = number => {
  if (number === null || number === undefined) return '';

  if (number.indexOf('@') > -1) {
    return number;
  } else {
    return number + S_WHATSAPP_NET;
  }
};

const decodeJid = number => {
  if (number === null || number === undefined) return '';

  if (isJidUser(number)) {
    return jidDecode(number).user;
  } else {
    return number;
  }
};

const isJidPersonal = jid => {
  return isJidUser(jid) || isJidBroadcast(jid) || isLidUser(jid);
}

// status: sent read delivered failed
// 2 sent, 3 delivered, 4 read, 0 error
const formatStatus = status => {
  switch (status) {
    case 0:
      return 'error';
    case 1:
      return 'pending';
    case 2:
      return 'sent';
    case 3:
      return 'delivered';
    case 4:
      return 'read';
    case 5:
      return 'played';
    default:
      return `unknown(${status})`;
  }
};

// Time: 2008-07-07 15:37:07
const formatTimestamp = timestamp => {
  if (timestamp === null) return '';

  const datetime = new Date(timestamp * 1000);

  return `${datetime.getFullYear()}-${datetime.getMonth() + 1}-${datetime.getDate()} ${datetime.getHours()}:${datetime.getMinutes()}:${datetime.getSeconds()}`;
};

const getFileExtension = mimeType => {
  switch (mimeType) {
    case 'image/jpeg':
      return '.jpg';
    case 'image/png':
      return '.png';
    case 'image/gif':
      return '.gif';
    case 'image/bmp':
      return '.bmp';
    case 'image/webp':
      return '.webp';
    default:
      return 'unknown';
  }
}

const uint8ArrayToBase64  = uint8Array => {
  const binaryString = String.fromCharCode(...uint8Array);
  return btoa(binaryString);
}

module.exports = {
  uint8ArrayToBase64,
  getFileExtension,
  formatTimestamp,
  formatStatus,
  encodeJid,
  decodeJid,
  isJidPersonal,
};