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.util.Log;
import android.view.KeyEvent;
import android.view.View;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.Toast;

import com.tangem.domain.cardReader.CardProtocol;
import com.tangem.domain.cardReader.NfcManager;
import com.tangem.domain.cardReader.Util;
import com.tangem.wallet.BTCUtils;
import com.tangem.wallet.Blockchain;
import com.tangem.wallet.CoinEngine;
import com.tangem.wallet.CoinEngineFactory;
import com.tangem.wallet.LastSignStorage;
import com.tangem.presentation.dialog.NoExtendedLengthSupportDialog;
import com.tangem.wallet.R;
import com.tangem.wallet.Tangem_Card;
import com.tangem.presentation.dialog.WaitSecurityDelayDialog;

public class SignPaymentActivity extends AppCompatActivity implements NfcAdapter.ReaderCallback, CardProtocol.Notifications {

    private static final int REQUEST_CODE_SEND_PAYMENT = 1;
    public static final int RESULT_INVALID_PIN = Activity.RESULT_FIRST_USER;
    private Tangem_Card mCard;
    private TextView tvCardID;
    private NfcManager mNfcManager;
    private static final String logTag = "SignPayment";
    private ProgressBar progressBar;
    private SignPaymentTask signPaymentTask;
    private String amountStr;
    private String feeStr;
    private String outAddressStr;
    private boolean lastReadSuccess = true;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_sign_payment);

        MainActivity.commonInit(getApplicationContext());

        mCard = new Tangem_Card(getIntent().getStringExtra("UID"));
        mCard.LoadFromBundle(getIntent().getExtras().getBundle("Card"));
        amountStr = getIntent().getStringExtra("Amount");
        feeStr = getIntent().getStringExtra("Fee");
        outAddressStr = getIntent().getStringExtra("Wallet");

        tvCardID = findViewById(R.id.tvCardID);
        tvCardID.setText(mCard.getCIDDescription());

        mNfcManager = new NfcManager(this, this);

        progressBar = findViewById(R.id.progressBar);
        progressBar.setProgressTintList(ColorStateList.valueOf(Color.DKGRAY));
        progressBar.setVisibility(View.INVISIBLE);
    }

    @Override
    public void onTagDiscovered(Tag tag) {
        try {
            // get IsoDep handle and run cardReader thread
            final IsoDep isoDep = IsoDep.get(tag);
            if (isoDep == null) {
                throw new CardProtocol.TangemException(getString(R.string.wrong_tag_err));
            }
            byte UID[] = tag.getId();
            String sUID = Util.byteArrayToHexString(UID);
            Log.v(logTag, "UID: " + sUID);

            if (sUID.equals(mCard.getUID())) {
                if (lastReadSuccess) {
                    isoDep.setTimeout(mCard.getPauseBeforePIN2() + 5000);
                } else {
                    isoDep.setTimeout(mCard.getPauseBeforePIN2() + 65000);
                }
                signPaymentTask = new SignPaymentTask(isoDep, this, amountStr, feeStr, outAddressStr);

                signPaymentTask.start();
            } else {
                Log.d(logTag, "Mismatch card UID (" + sUID + " instead of " + mCard.getUID() + ")");
                mNfcManager.IgnoreTag(isoDep.getTag());
                return;
            }

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

    }

    @Override
    public void onResume() {
        super.onResume();
        mNfcManager.onResume();
    }

    @Override
    public void onPause() {
        mNfcManager.onPause();
        if (signPaymentTask != null) {
            signPaymentTask.cancel(true);
        }
        super.onPause();
    }

    @Override
    public void onStop() {
        // dismiss enable NFC dialog
        mNfcManager.onStop();
        if (signPaymentTask != null) {
            signPaymentTask.cancel(true);
        }
        super.onStop();
    }

//    @Override
//    public Dialog CreateNFCDialog(int id, AlertDialogWrapper.Builder builder, LayoutInflater li) {
//        return mNfcManager.onCreateDialog(id, builder, li);
//    }

    private class SignPaymentTask extends Thread {

        String txAmount = "";
        String txFee = "";

        public void SetTransactionValue(String amount, String fee) {
            txAmount = amount;
            txFee = fee;
        }

        private String txOutAddress;

        IsoDep mIsoDep;
        CardProtocol.Notifications mNotifications;
        private boolean isCancelled = false;

        public SignPaymentTask(IsoDep isoDep, CardProtocol.Notifications notifications, String amount, String fee, String outAddress) {
            mIsoDep = isoDep;
            mNotifications = notifications;
            txOutAddress = outAddress;
            SetTransactionValue(amount, fee);
        }

        @Override
        public void run() {
            if (mIsoDep == null) {
                return;
            }
            CardProtocol protocol = new CardProtocol(getBaseContext(), mIsoDep, mCard, mNotifications);

            mNotifications.OnReadStart(protocol);
            try {

                // for Samsung's bugs -
                // Workaround for the Samsung Galaxy S5 (since the
                // first connection always hangs on transceive).
                int timeout = mIsoDep.getTimeout();
                mIsoDep.connect();
                mIsoDep.close();
                mIsoDep.connect();
                mIsoDep.setTimeout(timeout);
                try {
                    mNotifications.OnReadProgress(protocol, 5);

                    Log.i("SignPaymentTask", "[-- Start sign payment --]");

                    if (isCancelled) return;
                    protocol.run_VerifyCard();

                    Log.i("SignPaymentTask", "Manufacturer: " + protocol.getCard().getManufacturer().getOfficialName());

                    mNotifications.OnReadProgress(protocol, 30);
                    if (isCancelled) return;
//
//                    if (mCard.getBlockchain() == Blockchain.Ethereum) {
//                        SignETH_TX(protocol);
//                    } else {
//                        SignBTC_TX(protocol);
//                    }

                    CoinEngine engine = CoinEngineFactory.Create(mCard.getBlockchain());
                    if (engine != null) {
                        if (mCard.getPauseBeforePIN2() > 0) {
                            mNotifications.OnReadWait(mCard.getPauseBeforePIN2());
                        }

                        byte[] tx;
//                        try {
                        tx = engine.Sign(txFee, txAmount, txOutAddress, mCard, protocol);
//                        }
//                        finally {
//                            mNotifications.OnReadWait(0);
//                        }

                        if (tx != null) {
                            String txStr = BTCUtils.toHex(tx);
                            if (mCard.getBlockchain() == Blockchain.Ethereum || mCard.getBlockchain() == Blockchain.EthereumTestNet || mCard.getBlockchain() == Blockchain.Token) {
                                txStr = String.format("0x%s", txStr);
                            }

                            LastSignStorage.setLastTX(mCard.getWallet(), txStr);

                            Intent intent = new Intent(getBaseContext(), SendTransactionActivity.class);
                            intent.putExtra("UID", mCard.getUID());
                            intent.putExtra("Card", mCard.getAsBundle());
                            intent.putExtra("TX", txStr);
                            startActivityForResult(intent, REQUEST_CODE_SEND_PAYMENT);
                        }
                    }
                    mNotifications.OnReadProgress(protocol, 100);


                    if (isCancelled) return;

                } finally {
                    mNfcManager.IgnoreTag(mIsoDep.getTag());
                }
            } catch (CardProtocol.TangemException_InvalidPIN e) {
                e.printStackTrace();
                protocol.setError(e);
            } catch (Exception e) {
                e.printStackTrace();
                protocol.setError(e);

            } finally {
                Log.i("SignPaymentTask", "[-- Finish sign payment --]");
                mNotifications.OnReadFinish(protocol);
            }
        }

        public void cancel(Boolean AllowInterrupt) {
            try {
                if (this.isAlive()) {
                    isCancelled = true;
                    join(500);
                }
                if (this.isAlive() && AllowInterrupt) {
                    interrupt();
                    mNotifications.OnReadCancel();
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        }

    }


    public void OnReadStart(CardProtocol cardProtocol) {
        progressBar.post(new Runnable() {
            @Override
            public void run() {
                progressBar.setVisibility(View.VISIBLE);
                progressBar.setProgress(5);
            }
        });
    }

    public void OnReadFinish(final CardProtocol cardProtocol) {

        signPaymentTask = null;

        if (cardProtocol != null) {
            if (cardProtocol.getError() == null) {
                progressBar.post(new Runnable() {
                    @Override
                    public void run() {
                        progressBar.setProgress(100);
                        progressBar.setProgressTintList(ColorStateList.valueOf(Color.GREEN));
                    }
                });
            } else {
                lastReadSuccess = false;
                if (cardProtocol.getError().getClass().equals(CardProtocol.TangemException_InvalidPIN.class)) {
                    progressBar.post(new Runnable() {
                        @Override
                        public void run() {
                            progressBar.setProgress(100);
                            progressBar.setProgressTintList(ColorStateList.valueOf(Color.RED));
                        }
                    });
                    progressBar.postDelayed(new Runnable() {
                        @Override
                        public void run() {
                            try {
                                progressBar.setProgress(0);
                                progressBar.setProgressTintList(ColorStateList.valueOf(Color.DKGRAY));
                                progressBar.setVisibility(View.INVISIBLE);
                                Intent intent = new Intent();
                                intent.putExtra("message", "Cannot sign transaction. Make sure you enter correct PIN2!");
                                intent.putExtra("UID", cardProtocol.getCard().getUID());
                                intent.putExtra("Card", cardProtocol.getCard().getAsBundle());
                                setResult(RESULT_INVALID_PIN, intent);
                                finish();
                            } catch (Exception e) {
                                e.printStackTrace();
                            }
                        }
                    }, 500);
                    return;
                } else {
                    progressBar.post(new Runnable() {
                        @Override
                        public void run() {
                            if (cardProtocol.getError() instanceof CardProtocol.TangemException_ExtendedLengthNotSupported) {
                                if (!NoExtendedLengthSupportDialog.allreadyShowed) {
                                    new NoExtendedLengthSupportDialog().show(getFragmentManager(), "NoExtendedLengthSupportDialog");
                                }
                            } else {
                                Toast.makeText(getBaseContext(), "Try to scan again", Toast.LENGTH_LONG).show();
                            }
                            progressBar.setProgress(100);
                            progressBar.setProgressTintList(ColorStateList.valueOf(Color.RED));
                        }
                    });

                }

            }
        }

        progressBar.postDelayed(new Runnable() {
            @Override
            public void run() {
                try {
                    progressBar.setProgress(0);
                    progressBar.setProgressTintList(ColorStateList.valueOf(Color.DKGRAY));
                    progressBar.setVisibility(View.INVISIBLE);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }, 500);
    }

    public void OnReadProgress(CardProtocol protocol, final int progress) {
        progressBar.post(new Runnable() {
            @Override
            public void run() {
                progressBar.setProgress(progress);
            }
        });
    }

    public void OnReadCancel() {

        signPaymentTask = null;

        progressBar.postDelayed(new Runnable() {
            @Override
            public void run() {
                try {
                    progressBar.setProgress(0);
                    progressBar.setProgressTintList(ColorStateList.valueOf(Color.DKGRAY));
                    progressBar.setVisibility(View.INVISIBLE);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }, 500);
    }

    @Override
    public void OnReadWait(final int msec) {
        WaitSecurityDelayDialog.OnReadWait(this, msec);
    }

    @Override
    public void OnReadBeforeRequest(int timeout) {
        WaitSecurityDelayDialog.onReadBeforeRequest(this, timeout);
    }

    @Override
    public void OnReadAfterRequest() {
        WaitSecurityDelayDialog.onReadAfterRequest(this);
    }

    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        switch (keyCode) {
            case KeyEvent.KEYCODE_BACK:
                Intent intent = new Intent();
                intent.putExtra("message", "Operation canceled by user");
                setResult(Activity.RESULT_CANCELED, intent);
                finish();
                return true;
        }
        return super.onKeyDown(keyCode, event);
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (requestCode == REQUEST_CODE_SEND_PAYMENT) {
            setResult(resultCode, data);
            finish();
            return;
        }
        super.onActivityResult(requestCode, resultCode, data);
    }
}