package com.sifb.mw.prod.hce;

import android.annotation.TargetApi;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.nfc.cardemulation.HostApduService;
import android.os.Build;
import android.os.Bundle;
import android.os.Vibrator;
import android.support.v4.content.IntentCompat;

import com.sifb.base.MwApp;
import com.sifb.mw.prod.hce.util.MyAPDUUtil;
import com.sifb.mw.prod.hce.util.MyFileUtil;
import com.sifb.mw.prod.hce.util.MyFormatUtil;
import com.sifb.mw.prod.hce.util.MyLogsUtil;
import com.sifb.mw.prod.hce.util.MySprefUtil;
import com.sifb.sdk.util.MyTime;

import java.util.Arrays;

/**
 * Created by Yee Lynn on 4/3/2016.
 */
@TargetApi(Build.VERSION_CODES.KITKAT)
public class HCEHostApduService extends HostApduService {

    private static final String TAG = HCEConstant.HCE_TAG + "/HCEHostApduService";
    private String hceAmt, hceMerchant;
    private boolean isPayButton = false;

    //Application
    private MwApp curApplication;

    public void onCreate() {
        super.onCreate();
        MyLogsUtil.loggi(TAG, "onCreate");
        HCEConstant.hceTime = MyTime.getCurrentTimeStamp("yyMMddHHmmss");
        MyFileUtil.saveLogToExt(TAG, "onCreate");
        curApplication = (MwApp) getApplication();
        isPayButton = MySprefUtil.getHCEPrefBool(this, HCEConstant.HCE_SPREF_PAYBUTTON);
        MyLogsUtil.loggi(TAG, "isPayButton: " + isPayButton);
    }

    @Override
    public byte[] processCommandApdu(byte[] commandApdu, Bundle bundle) {
        isPayButton = MySprefUtil.getHCEPrefBool(this, HCEConstant.HCE_SPREF_PAYBUTTON);
        byte[] responseApdu = MyAPDUUtil.ERROR_UNKNOWN_RESP;
        String inboundApduDescription = "Start HCE";
        boolean isValid = false;

        switch (curApplication.getHCEActivityType()) {
            case NO_ACT:
                MyLogsUtil.loggi(TAG, "NO_ACT: " + MyFormatUtil.bytearrtoHexString(commandApdu));
                MyFileUtil.saveLogToExt(TAG, "NO_ACT: " + MyFormatUtil.bytearrtoHexString(commandApdu));

                if (Arrays.equals(HCEResponse.AID_SEL, commandApdu)) {
                    inboundApduDescription = "AID Selected";
                    responseApdu = HCEResponse.AID_RESP;
                    isValid = true;
                } else {
                    inboundApduDescription = "Invalid";
                    responseApdu = MyAPDUUtil.ERROR_UNKNOWN_RESP;
                }

                MyLogsUtil.loggi(TAG, "NO_ACT inboundApduDescription: " + inboundApduDescription);
                MyFileUtil.saveLogToExt(TAG, "NO_ACT inboundApduDescription: " + inboundApduDescription);
                MyFileUtil.saveLogToExt(TAG, "NO_ACT responseApdu: " + MyFormatUtil.bytearrtoHexString(responseApdu));

                if (isValid) {
                    MyLogsUtil.loggi(TAG, "Validated app!");
                    cardsPage();
                }
                break;
            case PAY_ACT:
                MyLogsUtil.loggi(TAG, "PAY_ACT: " + MyFormatUtil.bytearrtoHexString(commandApdu));
                MyFileUtil.saveLogToExt(TAG, "PAY_ACT: " + MyFormatUtil.bytearrtoHexString(commandApdu));

                if (isPayButton) {
                    if (Arrays.equals(HCEResponse.AID_SEL, commandApdu)) {
                        inboundApduDescription = "PAY Button Selected";
                        responseApdu = HCEResponse.AID_RESP_PAYBTN;
                        isValid = true;
                    } else {
                        inboundApduDescription = "Invalid";
                        responseApdu = MyAPDUUtil.ERROR_UNKNOWN_RESP;
                    }
                } else {
                    if (Arrays.equals(HCEResponse.AID_PAY, commandApdu)) {
                        inboundApduDescription = "PAY selected";
                        responseApdu = HCEResponse.AID_RESP;
                        isValid = true;
//                } else if (validateAmount(commandApdu)) {
//                    inboundApduDescription = "Valid Amount";
//                    responseApdu = HCEResponse.AMT_RESP;
//                    isValid = true;
                    } else {
                        inboundApduDescription = "Invalid";
                        responseApdu = MyAPDUUtil.ERROR_UNKNOWN_RESP;
                    }
                }
                MyLogsUtil.loggi(TAG, "PAY_ACT inboundApduDescription: " + inboundApduDescription);
                MyFileUtil.saveLogToExt(TAG, "PAY_ACT inboundApduDescription: " + inboundApduDescription);
                MyFileUtil.saveLogToExt(TAG, "PAY_ACT responseApdu: " + MyFormatUtil.bytearrtoHexString(responseApdu));

                if (isValid) {
                    MyLogsUtil.loggi(TAG, "Confirmed payment!");
                    confirmPage();
                }
                break;
            default:
                break;
        }
        MyLogsUtil.loggi(TAG, inboundApduDescription);
        MyFileUtil.saveLogToExt(TAG, "processCommandApdu inboundApduDescription: " + inboundApduDescription);
        return responseApdu;
    }

//    private boolean validateAmount(byte[] commandApdu) {
//        boolean isValid = false;
//
//        String commandStr = MyFormatUtil.bytearrtoHexString(commandApdu);
//
//        if (commandStr.length() >= 12) {
//            String valid = commandStr.substring(0, 12);
//
//            if (valid.equals("414d4f554e54")) {
//                String amount = commandStr.substring(12, 36);
//                String merchant = commandStr.substring(36);
//                hceAmt = MyKeypadUtil.formatAmountSelections(MyKeypadUtil.FLAG_FORMAT_COMMADECIMAL, amount);
//                hceMerchant = MyFormatUtil.hexstrToString(merchant);
//
//                MyLogsUtil.loggi(TAG, "Amount: " + hceAmt);
//                MyLogsUtil.loggi(TAG, "Merchant: " + hceMerchant);
//                MyFileUtil.saveLogToExt(TAG, "Amount: " + hceAmt);
//                MyFileUtil.saveLogToExt(TAG, "Merchant: " + hceMerchant);
//                isValid = true;
//            }
//        }
//
//        return isValid;
//    }

    private Activity getHCEActivity() {
        return curApplication.getHCEActivity();
    }

    private boolean isHCEActExist() {
        if (getHCEActivity() != null) {
            return true;
        } else {
            return false;
        }
    }

    private void cardsPage() {
        HCEConstant.isStart = true;
        if (isHCEActExist()) {
            MyLogsUtil.loggi(TAG, "cardsPage isHCEActExist true");
            Activity iAct = getHCEActivity();
            Intent intentCards = new Intent(iAct, ActivityHCECards.class);
            startActivity(intentCards);
            iAct.finish();
        } else {
            MyLogsUtil.loggi(TAG, "cardsPage isHCEActExist false");
            Intent intentCards = new Intent(this, ActivityHCECards.class);
            intentCards.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
            intentCards.setFlags(IntentCompat.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK);
//          TODO: fix bg launch, act x started intentCards.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            startActivity(intentCards);
        }
    }

    private void confirmPage() {
        Vibrator v = (Vibrator) curApplication.getSystemService(Context.VIBRATOR_SERVICE);
        v.vibrate(500);
        MySprefUtil.removeHCEPref(this, HCEConstant.HCE_SPREF_PAYBUTTON);
        if (isHCEActExist()) {
            MyLogsUtil.loggi(TAG, "confirmPage isHCEActExist true");
            ActivityHCEPayment.startAct(getHCEActivity(), hceAmt, hceMerchant);
        } else {
            MyLogsUtil.loggi(TAG, "confirmPage isHCEActExist false");
            Intent intentConfirm = new Intent(this, ActivityHCEConfirm.class);
            Bundle bundle = new Bundle();
            bundle.putString(HCEConstant.HCE_BUND_AMT, hceAmt);
            bundle.putString(HCEConstant.HCE_BUND_MERCHANT, hceMerchant);
            intentConfirm.putExtras(bundle);
            intentConfirm.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            startActivity(intentConfirm);
        }
    }

    @Override
    public void onDeactivated(int reason) {
        MyLogsUtil.loggi(TAG, "onDeactivated(" + String.valueOf(reason) + ")");
        MyFileUtil.saveLogToExt(TAG, "onDeactivated");
    }
}