package dk.thoerup.android.barcodesample;

import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.util.DisplayMetrics;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

import com.google.zxing.integration.android.IntentIntegrator;
import com.google.zxing.integration.android.IntentResult;

/*
  http://blog.dihaw.com/integrating-zxing-in-your-android-app-as-standalone-scanner/

  http://code.tutsplus.com/tutorials/android-sdk-create-a-barcode-reader--mobile-17162


  http://stackoverflow.com/questions/27851512/how-to-integrate-zxing-library-to-android-studio-for-barcode-scanning

 */

public class MainActivity extends ActionBarActivity {

    private Button startCamBtn;
    private ImageView imageView;


    private Button scanBtn;
    private TextView formatTxt, contentTxt;

    //ved rotate bliver activity'en genstartet - så enten skal variablerne gøres static/gemmes på anden vis eller også skal man låse for rotation
    static String scanContent = "";
    static String scanFormat = "";



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

        scanBtn = (Button) findViewById(R.id.button);
        formatTxt = (TextView)findViewById(R.id.scan_format);
        contentTxt = (TextView)findViewById(R.id.scan_content);


        startCamBtn = (Button) findViewById(R.id.button_startcam);
        imageView = (ImageView) findViewById(R.id.imageView);



        scanBtn.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                /*Intent intent = new Intent("com.google.zxing.client.android.SCAN");
                intent.putExtra("com.google.zxing.client.android.SCAN.SCAN_MODE", "QR_CODE_MODE");
                startActivityForResult(intent, 0);*/

                IntentIntegrator scanIntegrator = new IntentIntegrator(MainActivity.this);
                scanIntegrator.initiateScan();
            }
        });


        startCamBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(MainActivity.this, CamActivity.class);
                startActivityForResult(intent, 1);
            }

        });

    }

    @Override
    protected void onStart() {
        super.onStart();
        updateLabels();
    }

    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent intent) {
        Log.i("CAM", "requestCode:" + requestCode);

        switch( requestCode) {
            case 49374:
                IntentResult scanningResult = IntentIntegrator.parseActivityResult(requestCode, resultCode, intent);

                if (scanningResult != null) {
                    scanContent = scanningResult.getContents();
                    scanFormat = scanningResult.getFormatName();

                    updateLabels();
                }
                else{
                    Toast toast = Toast.makeText(getApplicationContext(), "No scan data received!", Toast.LENGTH_SHORT);
                    toast.show();
                }
                break;
            case 1:
                byte data[] = intent.getByteArrayExtra("DATA");

                Bitmap bm = BitmapFactory.decodeByteArray(data, 0, data.length);
                DisplayMetrics dm = new DisplayMetrics();
                getWindowManager().getDefaultDisplay().getMetrics(dm);

                imageView.setMinimumHeight(dm.heightPixels);
                imageView.setMinimumWidth(dm.widthPixels);
                imageView.setImageBitmap(bm);
                break;

        }


    }

    private void updateLabels() {
        formatTxt.setText("FORMAT: " + scanFormat);
        contentTxt.setText("CONTENT: " + scanContent);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}