ddok2 / leveldb-viewer

import { DotenvConfigOutput } from 'dotenv'

import Wallet from '../models/wallet'

const toJson = (str: string): Wallet | { result: string } => {

  try {

    return JSON.parse(str)

  } catch (e) {

    return { result: str }

  }

}

const hasWallet = (target: object | { value: string }): boolean => {

  return (

    !Object.prototype.hasOwnProperty.call(target, 'value') &&

    Object.prototype.hasOwnProperty.call(target, 'member_wallet')

  )

}

const addNullToBuffer = (

  channelName: string,

  chaincodeId: string,

  walletId: string,

): Buffer => {

  return Buffer.from(

    `${ channelName }\u0000${ chaincodeId }\u0000${ walletId }`,

    'utf8',

  )

}

const removeUselessToString = (str: string): string => {

  const pattern = '\u0000\n\u0003\u0001\u0004\u0000\u0012�\u0004'

  const indexOfBrace = str.indexOf('{')

  if (str.startsWith(pattern)) {

    return str.replace(pattern, '')

  }

  if (indexOfBrace > 0) {

    return str.slice(indexOfBrace, str.length)

  }

  return str

}

const isEnvFile = (env: DotenvConfigOutput): boolean => {

  if (env.error) {

    console.error(`

      ".env" file is required.

      No env file in 

      ${ process.cwd() }

      Exiting...

      `)

    return false

  }

  return true

}

export {

  toJson,

  hasWallet,

  addNullToBuffer,

  removeUselessToString,

  isEnvFile,

}