import scala.util.Failure
import scala.util.Success

import com.google.common.primitives.Bytes
import com.google.common.primitives.Ints

import scorex.crypto.EllipticCurveImpl
import scorex.crypto.encode.Base58
import scorex.crypto.hash.SecureCryptographicHash
import scorex.waves.crypto.HashChain

object WalletGenerator extends App {
  val walletSeed =
    Base58.decode(
      "paste here your base58 encoded walletSeed from settings.json") match {
        case Success(walletSeed) => {
          for (nonce <- 0 to 9) {
            val keySeed = SecureCryptographicHash(Bytes.concat(Ints.toByteArray(nonce), walletSeed))
            val pair = EllipticCurveImpl.createKeyPair(keySeed)
            val (privateKey, publicKey) = EllipticCurveImpl.createKeyPair(keySeed)
            val publicKeyHash = HashChain.hash(publicKey).take(20)
            val withoutChecksum: Array[Byte] = 1.toByte +: 'T'.toByte +: publicKeyHash
            val address = withoutChecksum ++ HashChain.hash(publicKey).take(4)
            println(s"address: ${Base58.encode(address)}, publicKey: ${Base58.encode(publicKey)}, privateKey: ${Base58.encode(privateKey)}")
          }
        }
        case Failure(e) => println("base58 seed decode failed")
      }
}