ddok2 / leveldb-viewer

import { Command } from 'commander'

import app from './app'

const start = async (): Promise<void> => {

  const program = new Command()

  program.

    on('--help', () => {

      console.log('')

      console.log(`

      Usage: node index.js -f elmo

             node index.js -l     

             node index.js -c     

    `)

    }).

    option('-f --find <wallet>', 'Find Wallet from LevelDB').

    option('-l --list', 'Find Wallet List from LevelDB').

    option('-c --count', 'View Number of wallets in LevelDB').

    parse(process.argv)

  const {

    find,

    list,

    count,

  } = program

  let query: {

    command?: string

    arg?: string

  } = {}

  if (find) {

    query.command = 'f'

    query.arg = find

  }

  if (list) {

    query.command = 'l'

  }

  if (count) {

    query.command = 'c'

  }

  if (!query.command) {

    console.log(`

    arguments are required.

    Usage: node index.js -f [target]  -> Find target Wallet

           node index.js -l           -> View List of Wallet

           node index.js -c           -> Show Number of Wallets

    help: node index.js --help

    `)

    return

  }

  return await app(query)

}

start().catch(e => console.error(e))