tangem-app-android-audited/app/src/main/java/com/tangem/presentation/activity/SendTransactionActivity.kt

package com.tangem.presentation.activity

import android.content.Intent
import android.nfc.NfcAdapter
import android.nfc.Tag
import android.os.Bundle
import android.support.v7.app.AppCompatActivity
import android.util.Log
import android.view.KeyEvent
import android.widget.Toast
import com.tangem.data.network.ServerApiHelper
import com.tangem.data.network.model.InfuraResponse
import com.tangem.data.network.request.ElectrumRequest
import com.tangem.domain.cardReader.NfcManager
import com.tangem.domain.wallet.Blockchain
import com.tangem.domain.wallet.CoinEngineFactory
import com.tangem.domain.wallet.LastSignStorage
import com.tangem.domain.wallet.TangemCard
import com.tangem.wallet.R
import org.json.JSONException
import java.io.IOException
import java.math.BigInteger

class SendTransactionActivity : AppCompatActivity(), NfcAdapter.ReaderCallback  {

    companion object {
        const val EXTRA_UID: String = "UID"
        const val EXTRA_CARD: String = "Card"
        const val EXTRA_TX: String = "TX"
    }

    private var serverApiHelper: ServerApiHelper? = null
    var card: TangemCard? = null
    private var tx: String? = null
    private var nfcManager: NfcManager? = null

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_send_transaction)

        MainActivity.commonInit(applicationContext)

        nfcManager = NfcManager(this, this)

        serverApiHelper = ServerApiHelper()

        val intent = intent
        card = TangemCard(getIntent().getStringExtra(EXTRA_UID))
        card!!.loadFromBundle(intent.extras!!.getBundle(EXTRA_CARD))
        tx = intent.getStringExtra(EXTRA_TX)

        val engine = CoinEngineFactory.create(card!!.blockchain)
        if (card!!.blockchain == Blockchain.Ethereum || card!!.blockchain == Blockchain.EthereumTestNet || card!!.blockchain == Blockchain.Token) {
//            val task = ETHRequestTask(this@SendTransactionActivity, card!!.blockchain)
//            val req = InfuraRequest.SendTransaction(card!!.wallet, tx)
//            req.id = 67
//            req.setBlockchain(card!!.blockchain)
//            task.execute(req)

            requestInfura(ServerApiHelper.INFURA_ETH_SEND_RAW_TRANSACTION, "")

        } else if (card!!.blockchain == Blockchain.Bitcoin || card!!.blockchain == Blockchain.BitcoinTestNet) {
//            val nodeAddress = engine!!.getNode(card)
//            val nodePort = engine.getNodePort(card)
//            val connectTask = ConnectTask(this@SendTransactionActivity, nodeAddress, nodePort, 3)
//            connectTask.execute(ElectrumRequest.broadcast(card!!.wallet, tx))

            requestElectrum(card!!, ElectrumRequest.broadcast(card!!.wallet, tx))

        } else if (card!!.blockchain == Blockchain.BitcoinCash || card!!.blockchain == Blockchain.BitcoinCashTestNet) {
//            val nodeAddress = engine!!.getNode(card)
//            val nodePort = engine.getNodePort(card)
//            val connectTask = ConnectTask(this@SendTransactionActivity, nodeAddress, nodePort, 3)
//            connectTask.execute(ElectrumRequest.broadcast(card!!.wallet, tx))

            requestElectrum(card!!, ElectrumRequest.broadcast(card!!.wallet, tx))
        }

        // request electrum listener
        serverApiHelper!!.setElectrumRequestData {
            if (it.isMethod(ElectrumRequest.METHOD_SendTransaction)) {
                try {
                    var hashTX = it.resultString

                    try {
                        LastSignStorage.setLastMessage(card!!.wallet, hashTX)
                        if (hashTX.startsWith("0x") || hashTX.startsWith("0X")) {
                            hashTX = hashTX.substring(2)
                        }
                        val bigInt = BigInteger(hashTX, 16) //TODO: очень плохой способ
                        LastSignStorage.setTxWasSend(card!!.wallet)
                        LastSignStorage.setLastMessage(card!!.wallet, "")
                        Log.e("TX_RESULT", hashTX)
                        finishWithSuccess()
                    } catch (e: Exception) {
                        e.printStackTrace()
//                        finishWithError(hashTX)
                        requestElectrum(card!!, ElectrumRequest.broadcast(card!!.wallet, tx))
                    }

                } catch (e: JSONException) {
                    e.printStackTrace()
//                    finishWithError(e.toString())
                    requestElectrum(card!!, ElectrumRequest.broadcast(card!!.wallet, tx))
                }
            }
        }

        // request eth sendRawTransaction
        val infuraBodyListener: ServerApiHelper.InfuraBodyListener = object : ServerApiHelper.InfuraBodyListener {
            override fun onInfuraSuccess(method: String, infuraResponse: InfuraResponse) {
                when (method) {
                    ServerApiHelper.INFURA_ETH_SEND_RAW_TRANSACTION -> {
                        try {
                            var hashTX: String
                            try {
                                val tmp = infuraResponse.result
                                hashTX = tmp
                            } catch (e: JSONException) {
//                                val msg = request.getAnswer()
//                                val err = msg!!.getJSONObject("error")
//                                hashTX = err.getString("message")
//                                LastSignStorage.setLastMessage(card!!.wallet, hashTX)
                                return
                            }

                            if (hashTX.startsWith("0x") || hashTX.startsWith("0X")) {
                                hashTX = hashTX.substring(2)
                            }
                            val bigInt = BigInteger(hashTX, 16) //TODO: очень плохой способ
                            LastSignStorage.setTxWasSend(card!!.wallet)
                            LastSignStorage.setLastMessage(card!!.wallet, "")
//                            Log.e("TX_RESULT", hashTX)


                            val nonce = card!!.confirmedTXCount
                            nonce.add(BigInteger.valueOf(1))
                            card!!.confirmedTXCount = nonce
//                            Log.e("TX_RESULT", hashTX)

                            finishWithSuccess()

                        } catch (e: Exception) {
                            e.printStackTrace()
                        }
                    }

                    else -> {

                    }
                }
            }

            override fun onInfuraFail(method: String, message: String) {
                when (method) {
                    ServerApiHelper.INFURA_ETH_SEND_RAW_TRANSACTION -> {
                        finishWithError(message)
                    }

                    else -> {

                    }
                }
            }
        }

        serverApiHelper!!.setInfuraResponse(infuraBodyListener)
    }

    override fun onKeyDown(keyCode: Int, event: KeyEvent?): Boolean {
        when (keyCode) {
            KeyEvent.KEYCODE_BACK -> {
                Toast.makeText(this, R.string.please_wait, Toast.LENGTH_LONG).show()
                return true
            }
        }
        return super.onKeyDown(keyCode, event)
    }

    private fun requestInfura(method: String, contract: String) {
        serverApiHelper!!.infura(method, 67, card!!.wallet, contract, tx)
    }

    private fun requestElectrum(card: TangemCard, electrumRequest: ElectrumRequest) {
        serverApiHelper!!.electrumRequestData(card, electrumRequest)
    }

    fun finishWithError(message: String) {
        val intent = Intent()
        intent.putExtra("message", String.format(getString(R.string.try_again_failed_to_send_transaction), message))
        setResult(RESULT_CANCELED, intent)
        finish()
    }

    fun finishWithSuccess() {
        val intent = Intent()
        intent.putExtra("message", getString(R.string.transaction_has_been_successfully_signed))
        setResult(RESULT_OK, intent)
        finish()
    }

    public override fun onResume() {
        super.onResume()
        nfcManager!!.onResume()
    }

    public override fun onPause() {
        super.onPause()
        nfcManager!!.onPause()
    }

    public override fun onStop() {
        super.onStop()
        nfcManager!!.onStop()
    }

    override fun onTagDiscovered(tag: Tag) {
        try {
//            Log.w(javaClass.name, "Ignore discovered tag!")
            nfcManager!!.ignoreTag(tag)
        } catch (e: IOException) {
            e.printStackTrace()
        }

    }

}