import crypto from 'crypto'
import { compressUuid } from './string.util'
const ENCODER = 'base64'
const REG_KEY = /^[0-9a-fA-F]{63,64}$/

export function isEncrypt(msg: string) {
  return !REG_KEY.test(msg)
}

export function aesEncrypt(text: string, password: string, iv: string) {
  var md5 = crypto.createHash('md5')
  const key = md5.update(password).digest('hex')
  let cipher = crypto.createCipheriv('aes-256-cbc', key, iv)
  let encrypted = cipher.update(text, 'utf8', ENCODER)
  encrypted += cipher.final(ENCODER)
  return encrypted
}

export function aesDecrypt(encryptedText: string, password: string, iv: string) {
  var md5 = crypto.createHash('md5')
  const key = md5.update(password).digest('hex')
  let decipher = crypto.createDecipheriv('aes-256-cbc', key, iv)
  let decrypted = decipher.update(encryptedText, ENCODER, 'utf8')
  return decrypted + decipher.final('utf8')
}

export function hmacsha256(text: string, secret: string) {
  const mac = crypto.createHmac('sha256', secret)
  const data = mac.update(text).digest('hex').toLowerCase()
  console.log(`HmacSHA256 rawContent is [${text}], key is [${secret}], hash result is [${data}]`)
  return data
}

export function sha512(password: string, salt: string) {
  let hash = crypto.createHmac('sha512', salt)
  hash.update(password)
  let value = hash.digest('hex')
  return {
    salt: salt,
    passwordHash: value,
  }
}

export function sha3_256(str: string) {
  let hash = crypto.createHash('sha3-256')
  hash.update(str)
  return hash.digest('hex')
}

export function genRandomString(length: number) {
  return crypto
    .randomBytes(Math.ceil(length / 2))
    .toString('hex')
    .slice(0, length)
}

export function uuid() {
  return crypto.randomUUID()
}

export function shortUuid() {
  let uid = uuid()
  return compressUuid(uid)
}

export function md5(content: string) {
  var md5 = crypto.createHash('md5')
  return md5.update(content).digest('hex')
}

export function sha1(content: string) {
  var md5 = crypto.createHash('sha1')
  return md5.update(content).digest('hex')
}