package com.tangem.presentation.activity

import android.app.Activity
import android.content.Intent
import android.content.res.ColorStateList
import android.graphics.Color
import android.nfc.NfcAdapter
import android.nfc.Tag
import android.nfc.tech.IsoDep
import android.os.Bundle
import android.support.v7.app.AppCompatActivity
import android.view.KeyEvent
import android.view.View
import android.widget.ProgressBar
import android.widget.Toast
import com.tangem.App
import com.tangem.Constant
import com.tangem.domain.wallet.CoinEngine
import com.tangem.domain.wallet.CoinEngineFactory
import com.tangem.domain.wallet.TangemContext
import com.tangem.presentation.dialog.NoExtendedLengthSupportDialog
import com.tangem.presentation.dialog.WaitSecurityDelayDialog
import com.tangem.tangemcard.reader.CardProtocol
import com.tangem.tangemcard.android.reader.NfcManager
import com.tangem.tangemcard.android.reader.NfcReader
import com.tangem.tangemcard.data.asBundle
import com.tangem.tangemcard.tasks.SignTask
import com.tangem.tangemcard.util.Util
import com.tangem.wallet.R
import kotlinx.android.synthetic.main.activity_sign_payment.*

class SignPaymentActivity : AppCompatActivity(), NfcAdapter.ReaderCallback, CardProtocol.Notifications {

    companion object {
        val TAG: String = SignPaymentActivity::class.java.simpleName
    }

    private lateinit var nfcManager: NfcManager
    private lateinit var ctx: TangemContext

    private var signPaymentTask: SignTask? = null

    private lateinit var amount: CoinEngine.Amount
    private lateinit var fee: CoinEngine.Amount
    private var isIncludeFee = true
    private var outAddressStr: String? = null
    private var lastReadSuccess = true

    private var progressBar: ProgressBar? = null

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

        nfcManager = NfcManager(this, this)

        ctx = TangemContext.loadFromBundle(this, intent.extras)

        amount = CoinEngine.Amount(intent.getStringExtra(Constant.EXTRA_AMOUNT), intent.getStringExtra(Constant.EXTRA_AMOUNT_CURRENCY))
        fee = CoinEngine.Amount(intent.getStringExtra(Constant.EXTRA_FEE), intent.getStringExtra(Constant.EXTRA_FEE_CURRENCY))
        isIncludeFee = intent.getBooleanExtra(Constant.EXTRA_FEE_INCLUDED, true)
        outAddressStr = intent.getStringExtra(Constant.EXTRA_TARGET_ADDRESS)

        tvCardID.text = ctx.card!!.cidDescription

        progressBar = findViewById(R.id.progressBar)
        progressBar!!.progressTintList = ColorStateList.valueOf(Color.DKGRAY)
        progressBar!!.visibility = View.INVISIBLE
    }

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

    public override fun onPause() {
        nfcManager.onPause()
        if (signPaymentTask != null)
            signPaymentTask!!.cancel(true)
        super.onPause()
    }

    public override fun onStop() {
        // dismiss enable NFC dialog
        nfcManager.onStop()
        if (signPaymentTask != null)
            signPaymentTask!!.cancel(true)
        super.onStop()
    }

    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
        if (requestCode == Constant.REQUEST_CODE_SEND_PAYMENT_) {
            setResult(resultCode, data)
            finish()
            return
        }
        super.onActivityResult(requestCode, resultCode, data)
    }

    override fun onKeyDown(keyCode: Int, event: KeyEvent): Boolean {
        when (keyCode) {
            KeyEvent.KEYCODE_BACK -> {
                val intent = Intent()
                setResult(Activity.RESULT_CANCELED, intent)
                finish()
                return true
            }
        }
        return super.onKeyDown(keyCode, event)
    }

    override fun onTagDiscovered(tag: Tag) {
        try {
            // get IsoDep handle and run cardReader thread
            val isoDep = IsoDep.get(tag)
                    ?: throw CardProtocol.TangemException(getString(R.string.wrong_tag_err))
            val uid = tag.id
            val sUID = Util.byteArrayToHexString(uid)

            if (sUID == ctx.card!!.uid) {
                if (lastReadSuccess) {
                    isoDep.timeout = ctx.card!!.pauseBeforePIN2 + 5000
                } else {
                    isoDep.timeout = ctx.card!!.pauseBeforePIN2 + 65000
                }

                val coinEngine = CoinEngineFactory.create(ctx)
                        ?: throw CardProtocol.TangemException("Can't create CoinEngine!")
                coinEngine.setOnNeedSendPayment { tx ->
                    if (tx != null) {
                        val intent = Intent(this, SendTransactionActivity::class.java)
                        ctx.saveToIntent(intent)
                        intent.putExtra(Constant.EXTRA_TX, tx)
                        startActivityForResult(intent, Constant.REQUEST_CODE_SEND_PAYMENT_)
                    }
                }
                val paymentToSign = coinEngine.constructPayment(amount, fee, isIncludeFee, outAddressStr)

                signPaymentTask = SignTask(ctx.card, NfcReader(nfcManager, isoDep), App.localStorage, App.pinStorage, this, paymentToSign)
                signPaymentTask!!.start()
            } else
                nfcManager.ignoreTag(isoDep.tag)

        } catch (e: CardProtocol.TangemException_WrongAmount) {
            try {
                val intent = Intent()
                intent.putExtra("message", getString(R.string.cannot_sign_transaction_wrong_amount))
                intent.putExtra("UID", ctx.card.uid)
                intent.putExtra("Card", ctx.card.asBundle)
                setResult(Activity.RESULT_CANCELED, intent)
                finish()
            } catch (e: Exception) {
                e.printStackTrace()
            }
        } catch (e: Exception) {
            e.printStackTrace()
        }
    }

    override fun onReadStart(cardProtocol: CardProtocol) {
        progressBar!!.post {
            progressBar!!.visibility = View.VISIBLE
            progressBar!!.progress = 5
        }
    }

    override fun onReadProgress(protocol: CardProtocol, progress: Int) {
        progressBar!!.post { progressBar!!.progress = progress }
    }

    override fun onReadFinish(cardProtocol: CardProtocol?) {
        signPaymentTask = null
        if (cardProtocol != null) {
            if (cardProtocol.error == null) {
                progressBar!!.post {
                    progressBar!!.progress = 100
                    progressBar!!.progressTintList = ColorStateList.valueOf(Color.GREEN)
                }
            } else {
                lastReadSuccess = false
                if (cardProtocol.error.javaClass == CardProtocol.TangemException_InvalidPIN::class.java) {
                    progressBar!!.post {
                        progressBar!!.progress = 100
                        progressBar!!.progressTintList = ColorStateList.valueOf(Color.RED)
                    }
                    progressBar!!.postDelayed({
                        try {
                            progressBar!!.progress = 0
                            progressBar!!.progressTintList = ColorStateList.valueOf(Color.DKGRAY)
                            progressBar!!.visibility = View.INVISIBLE
                            val intent = Intent()
                            intent.putExtra("message", getString(R.string.cannot_sign_transaction_make_sure_you_enter_correct_pin_2))
                            intent.putExtra("UID", cardProtocol.card.uid)
                            intent.putExtra("Card", cardProtocol.card.asBundle)
                            setResult(Constant.RESULT_INVALID_PIN_, intent)
                            finish()
                        } catch (e: Exception) {
                            e.printStackTrace()
                        }
                    }, 500)
                } else {
                    if (cardProtocol.error is CardProtocol.TangemException_WrongAmount) {
                        try {
                            val intent = Intent()
                            intent.putExtra("message", getString(R.string.cannot_sign_transaction_wrong_amount))
                            intent.putExtra("UID", cardProtocol.card.uid)
                            intent.putExtra("Card", cardProtocol.card.asBundle)
                            setResult(Activity.RESULT_CANCELED, intent)
                            finish()
                        } catch (e: Exception) {
                            e.printStackTrace()
                        }
                    }
                    progressBar!!.post {
                        if (cardProtocol.error is CardProtocol.TangemException_ExtendedLengthNotSupported) {
                            if (!NoExtendedLengthSupportDialog.allReadyShowed) {
                                NoExtendedLengthSupportDialog.message = getText(R.string.the_nfc_adapter_length_apdu).toString() + "\n" + getText(R.string.the_nfc_adapter_length_apdu_advice).toString()
                                NoExtendedLengthSupportDialog().show(supportFragmentManager, NoExtendedLengthSupportDialog.TAG)
                            }
                        } else {
                            Toast.makeText(baseContext, R.string.try_to_scan_again, Toast.LENGTH_LONG).show()
                        }
                        progressBar!!.progress = 100
                        progressBar!!.progressTintList = ColorStateList.valueOf(Color.RED)
                    }
                }
            }
        }

        progressBar!!.postDelayed({
            try {
                progressBar!!.progress = 0
                progressBar!!.progressTintList = ColorStateList.valueOf(Color.DKGRAY)
                progressBar!!.visibility = View.INVISIBLE
            } catch (e: Exception) {
                e.printStackTrace()
            }
        }, 500)
    }

    override fun onReadCancel() {
        signPaymentTask = null

        progressBar!!.postDelayed({
            try {
                progressBar!!.progress = 0
                progressBar!!.progressTintList = ColorStateList.valueOf(Color.DKGRAY)
                progressBar!!.visibility = View.INVISIBLE
            } catch (e: Exception) {
                e.printStackTrace()
            }
        }, 500)
    }

    override fun onReadWait(msec: Int) {
        WaitSecurityDelayDialog.onReadWait(this, msec)
    }

    override fun onReadBeforeRequest(timeout: Int) {
        WaitSecurityDelayDialog.onReadBeforeRequest(this, timeout)
    }

    override fun onReadAfterRequest() {
        WaitSecurityDelayDialog.onReadAfterRequest(this)
    }

}