package monnethic.mobile.qrcode;

import android.content.Intent;
import android.graphics.Bitmap;
import android.os.AsyncTask;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import com.example.monnthic.monnethicmobile.R;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.WriterException;
import com.google.zxing.common.BitMatrix;
import com.journeyapps.barcodescanner.BarcodeEncoder;
import monnethic.mobile.restApi.SessionApiHandler;


public class QrCodeActivity extends AppCompatActivity {
    ImageView qrCode;
    Button closeButton;
    TextView adresseView;
    TextView amountView;

    private String user_hash;
    private String user_password;
    private String session_id;
    private String wallet_hash;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_qr_code);
        qrCode=findViewById(R.id.qrCodeViewer);
        closeButton=findViewById(R.id.buttonClose);
        adresseView=findViewById(R.id.textViewAdresseDisplay);
        amountView=findViewById(R.id.textViewAmountDisplay);

        Intent intent = getIntent();
        user_hash = intent.getStringExtra("USER_HASH");
        user_password = intent.getStringExtra("USER_PWD");
        session_id = intent.getStringExtra("SESSION_ID");
        wallet_hash = intent.getStringExtra("WALLET_HASH");
        String amount = intent.getStringExtra("AMOUNT");
        try{
            generateQrCode(wallet_hash,amount);
        }catch(Exception e){
            e.getMessage();
        }
        closeButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                finish();
            }
        });
    }

    private void generateQrCode(String wallet_hash, String amount) throws WriterException {
        BitMatrix bitMatrix;
        String valueToEncode = wallet_hash+";"+amount;
        try{
            bitMatrix = new MultiFormatWriter().encode(valueToEncode, BarcodeFormat.QR_CODE,300,300);
            BarcodeEncoder barcodeEncoder = new BarcodeEncoder();
            Bitmap bitmap = barcodeEncoder.createBitmap(bitMatrix);
            qrCode.setImageBitmap(bitmap);
            adresseView.setText(wallet_hash);
            amountView.setText(amount);
        }catch (Exception e){
            e.getMessage();
        }
    }

    @Override
    protected void onStop() {
        super.onStop();  // Always call the superclass method first
        new EndSessionTask().execute(session_id);
    }

    private class EndSessionTask extends AsyncTask<String,Void,Void> {
        @Override
        protected Void doInBackground(String... strings) {
            try{
                SessionApiHandler sessionApiHandler = new SessionApiHandler();
                sessionApiHandler.endSession(strings[0]);
            }catch (Exception e){
                e.printStackTrace();
            }
            return null;
        }
    }
}