import { Dcomm, BinTools, BN, Buffer } from "dcomm/dist"
import {
  DVMAPI,
  KeyChain,
  UTXOSet,
  UnsignedTx,
  Tx,
  DVMConstants,
  UTXO
} from "dcomm/dist/apis/dvm"
import { GetUTXOsResponse } from "dcomm/dist/apis/dvm/interfaces"
import {
  PrivateKeyPrefix,
  DefaultLocalGenesisPrivateKey,
  UnixNow
} from "dcomm/dist/utils"

const getUTXOIDs = (
  utxoSet: UTXOSet,
  txid: string,
  outputType: number = DVMConstants.SECPXFEROUTPUTID_CODECONE,
  assetID = "2fombhL7aGPwj3KH4bfrmJwW6PVnMobf9Y2fn9GwxiAAJyFDbe"
): string[] => {
  const utxoids: string[] = utxoSet.getUTXOIDs()
  let result: string[] = []
  for (let index: number = 0; index < utxoids.length; ++index) {
    if (
      utxoids[index].indexOf(txid.slice(0, 10)) != -1 &&
      utxoSet.getUTXO(utxoids[index]).getOutput().getOutputID() == outputType &&
      assetID ==
        bintools.cb58Encode(utxoSet.getUTXO(utxoids[index]).getAssetID())
    ) {
      result.push(utxoids[index])
    }
  }
  return result
}

const ip: string = "localhost"
const port: number = 9650
const protocol: string = "http"
const networkID: number = 1337
const dcomm: Dcomm = new Dcomm(ip, port, protocol, networkID)
const astchain: DVMAPI = dcomm.ASTChain()
const bintools: BinTools = BinTools.getInstance()
const xKeychain: KeyChain = astchain.keyChain()
const privKey: string = `${PrivateKeyPrefix}${DefaultLocalGenesisPrivateKey}`
xKeychain.importKey(privKey)
const xAddressStrings: string[] = astchain.keyChain().getAddressStrings()
const threshold: number = 1
const locktime: BN = new BN(0)
const memo: Buffer = Buffer.from(
  "DVM utility method buildNFTTransferTx to transfer an ANT"
)
const asOf: BN = UnixNow()

const main = async (): Promise<any> => {
  const dvmUTXOResponse: GetUTXOsResponse = await astchain.getUTXOs(
    xAddressStrings
  )
  const utxoSet: UTXOSet = dvmUTXOResponse.utxos
  const utxos: UTXO[] = utxoSet.getAllUTXOs()
  let txid: Buffer = Buffer.from("")
  let assetID: Buffer = Buffer.from("")
  utxos.forEach((utxo: UTXO) => {
    if (utxo.getOutput().getTypeID() === 11) {
      txid = utxo.getTxID()
      assetID = utxo.getAssetID()
    }
  })
  const nftTransferOutputUTXOIDs: string[] = getUTXOIDs(
    utxoSet,
    bintools.cb58Encode(txid),
    DVMConstants.NFTXFEROUTPUTID,
    bintools.cb58Encode(assetID)
  )
  const nftTransferOutputUTXOID: string = nftTransferOutputUTXOIDs[0]

  const unsignedTx: UnsignedTx = await astchain.buildNFTTransferTx(
    utxoSet,
    xAddressStrings,
    xAddressStrings,
    xAddressStrings,
    nftTransferOutputUTXOID,
    memo,
    asOf,
    locktime,
    threshold
  )

  const tx: Tx = unsignedTx.sign(xKeychain)
  const id: string = await astchain.issueTx(tx)
  console.log(`Success! TXID: ${id}`)
}

main()
