identi-recognition/src/utils/utils.js

identiRecognition

const codes = require('./codes')
const { validationResult } = require('express-validator')

//   _  _ ___ _    ___ ___ _   _ _      ___ _   _ _  _  ___ _____ ___ ___  _  _ ___
//  | || | __| |  | _ \ __| | | | |    | __| | | | \| |/ __|_   _|_ _/ _ \| \| / __|
//  | __ | _|| |__|  _/ _|| |_| | |__  | _|| |_| | .` | (__  | |  | | (_) | .` \__ \
//  |_||_|___|____|_| |_|  \___/|____| |_|  \___/|_|\_|\___| |_| |___\___/|_|\_|___/

// *************** HELPER FUNCIONTS ******************//
function getHeaders(form) {
  return new Promise((resolve, reject) => {
    form.getLength((err, length) => {
      if (err) {
        reject(err)
      }
      let headers = Object.assign({ 'Content-Length': length }, form.getHeaders())
      resolve(headers)
    })
  })
}

function validateIPaddress(ipaddress) {
  try {
    if (
      /^(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/.test(
        ipaddress
      )
    ) {
      return true
    }
    return false
  } catch (e) {
    console.error('Couldnt validate Ip Address')
    return false
  }
}

function isNull(value) {
  return value === null
}

function isUndefined(value) {
  return value === undefined
}

function isObject(value) {
  return typeof value === 'object' && value !== null && !Array.isArray(value)
}

function isString(value) {
  return typeof value === 'string'
}

function isFunction(value) {
  return typeof value === 'function'
}

function isError(value) {
  switch (Object.prototype.toString.call(value)) {
    case '[object Error]':
      return true
    case '[object Exception]':
      return true
    case '[object DOMException]':
      return true
    default:
      return value instanceof Error
  }
}

function isNumber(value) {
  return !isNaN(parseFloat(value)) && !isNaN(value - 0)
}

function errorHandler(err, _req, res, _next) {
  const { status, name, ...data } = err
  return res.status(status).send(data)
}

function isValidDate(str) {
  const date = new Date(str)
  const ans = date instanceof Date && !isNaN(date)
  return ans
}

function formatTime(dateChange, diff_time = 5 * 60 * 60 * 1000) {
  if (dateChange) {
    var date = new Date(dateChange.getTime() + diff_time)

    var hour = date.getHours()
    hour = (hour < 10 ? '0' : '') + hour

    var min = date.getMinutes()
    min = (min < 10 ? '0' : '') + min

    var sec = date.getSeconds()
    sec = (sec < 10 ? '0' : '') + sec

    var year = date.getFullYear()

    var month = date.getMonth() + 1
    month = (month < 10 ? '0' : '') + month

    var day = date.getDate()
    day = (day < 10 ? '0' : '') + day

    return year + '-' + month + '-' + day + ' ' + hour + ':' + min + ':' + sec + ': '
  } else {
    console.error('No date passed to function')
    return false
  }
}

// const myDate = '6-26-2012 16:00'
// console.log(isValidDate(myDate))
// console.log(new Date(myDate).getTime())

module.exports = {
  getHeaders,
  isNull,
  isUndefined,
  isObject,
  isString,
  isFunction,
  isError,
  isNumber,
  formatTime,
  isValidDate,
  errorHandler,
  validateIPaddress
}