import { Ecanna, BN, Buffer } from "ecanna/dist"
import {
  StakeVMAPI,
  KeyChain,
  UTXOSet,
  UnsignedTx,
  Tx
} from "ecanna/dist/apis/stakevm"
import {
  PrivateKeyPrefix,
  DefaultLocalGenesisPrivateKey,
  Defaults,
  UnixNow
} from "ecanna/dist//utils"

const ip: string = "localhost"
const port: number = 9650
const protocol: string = "http"
const networkID: number = 1337
const ecanna: Ecanna = new Ecanna(ip, port, protocol, networkID)
const stkchain: StakeVMAPI = ecanna.STKChain()
const pKeychain: KeyChain = stkchain.keyChain()
const privKey: string = `${PrivateKeyPrefix}${DefaultLocalGenesisPrivateKey}`
pKeychain.importKey(privKey)
const pAddressStrings: string[] = stkchain.keyChain().getAddressStrings()
const evmChainBlockchainID: string =
  Defaults.network[networkID].EVM.blockchainID
const stkChainBlockchainID: string =
  Defaults.network[networkID].STK.blockchainID
const threshold: number = 1
const locktime: BN = new BN(0)
const memo: Buffer = Buffer.from(
  "StakeVM utility method buildImportTx to import ECNA to the STK-Chain from the TKN-Chain"
)
const asOf: BN = UnixNow()

const main = async (): Promise<any> => {
  const stakeVMUTXOResponse: any = await stkchain.getUTXOs(
    pAddressStrings,
    evmChainBlockchainID
  )
  const utxoSet: UTXOSet = stakeVMUTXOResponse.utxos
  const unsignedTx: UnsignedTx = await stkchain.buildImportTx(
    utxoSet,
    pAddressStrings,
    evmChainBlockchainID,
    pAddressStrings,
    pAddressStrings,
    pAddressStrings,
    memo,
    asOf,
    locktime,
    threshold
  )
  const tx: Tx = unsignedTx.sign(pKeychain)
  const txid: string = await stkchain.issueTx(tx)
  console.log(`Success! TXID: ${txid}`)
}

main()