package com.exercise.AndroidCamera;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.OutputStream;
import java.lang.reflect.Method;

import android.app.Activity;
import android.content.ContentValues;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.content.res.Configuration;
import android.graphics.PixelFormat;
import android.hardware.Camera;
import android.hardware.Camera.PictureCallback;
import android.hardware.Camera.ShutterCallback;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.provider.MediaStore.Images.Media;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.view.ViewGroup.LayoutParams;
import android.widget.Button;
import android.widget.Toast;

public class AndroidCamera extends Activity implements SurfaceHolder.Callback{

    Camera camera;
    SurfaceView surfaceView;
    SurfaceHolder surfaceHolder;
    boolean previewing = false;
    LayoutInflater controlInflater = null;

    final int RESULT_SAVEIMAGE = 0;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);

        getWindow().setFormat(PixelFormat.UNKNOWN);
        surfaceView = (SurfaceView)findViewById(R.id.camerapreview);
        surfaceHolder = surfaceView.getHolder();
        surfaceHolder.addCallback(this);
        surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);

        controlInflater = LayoutInflater.from(getBaseContext());
        View viewControl = controlInflater.inflate(R.layout.control, null);
        LayoutParams layoutParamsControl
            = new LayoutParams(LayoutParams.FILL_PARENT,
            LayoutParams.FILL_PARENT);
        this.addContentView(viewControl, layoutParamsControl);

        Button buttonTakePicture = (Button)findViewById(R.id.takepicture);
        buttonTakePicture.setOnClickListener(new Button.OnClickListener(){

            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                camera.takePicture(myShutterCallback,
                        myPictureCallback_RAW, myPictureCallback_JPG);
                Intent intent = new Intent(getBaseContext(), Punch.class);
                intent.putExtra("ImageReference", "");
                startActivity(intent);

            }});
    }

    ShutterCallback myShutterCallback = new ShutterCallback(){

        public void onShutter() {
            // TODO Auto-generated method stub

        }};

    PictureCallback myPictureCallback_RAW = new PictureCallback(){

        public void onPictureTaken(byte[] arg0, Camera arg1) {
            // TODO Auto-generated method stub

        }};

    PictureCallback myPictureCallback_JPG = new PictureCallback(){

        public void onPictureTaken(byte[] arg0, Camera arg1) {
            // TODO Auto-generated method stub
            /*Bitmap bitmapPicture
                = BitmapFactory.decodeByteArray(arg0, 0, arg0.length);  */
            int imageNum = 0;
            Intent imageIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
            File imagesFolder = new File(Environment.getExternalStorageDirectory(), "Punch");
            imagesFolder.mkdirs(); // <----
            String fileName = "image_" + String.valueOf(imageNum) + ".jpg";
            File output = new File(imagesFolder, fileName);
            while (output.exists()){
                imageNum++;
                fileName = "image_" + String.valueOf(imageNum) + ".jpg";
                output = new File(imagesFolder, fileName);
            }

            Uri uriSavedImage = Uri.fromFile(output);
            imageIntent.putExtra(MediaStore.EXTRA_OUTPUT, uriSavedImage);


            OutputStream imageFileOS;
            try {
                imageFileOS = getContentResolver().openOutputStream(uriSavedImage);
                imageFileOS.write(arg0);
                imageFileOS.flush();
                imageFileOS.close();

                Toast.makeText(AndroidCamera.this,
                        "Image saved",
                        Toast.LENGTH_LONG).show();

            } catch (FileNotFoundException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

            camera.startPreview();
        }};

    public void surfaceChanged(SurfaceHolder holder, int format, int width,
            int height) {
        // TODO Auto-generated method stub
        if(previewing){
            camera.stopPreview();
            previewing = false;
        }

        if (camera != null){
            try {
                camera.setPreviewDisplay(surfaceHolder);
                camera.startPreview();
                previewing = true;
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
    }

    public void surfaceCreated(SurfaceHolder holder) {
        // TODO Auto-generated method stub

        camera = Camera.open();
        try {
               Camera.Parameters parameters = camera.getParameters();
               if (this.getResources().getConfiguration().orientation != Configuration.ORIENTATION_LANDSCAPE) {
                  // This is an undocumented although widely known feature
                  parameters.set("orientation", "portrait");
                  // For Android 2.2 and above
                  camera.setDisplayOrientation(90);
                  // Uncomment for Android 2.0 and above
                  parameters.setRotation(90);
               } else {
                  // This is an undocumented although widely known feature
                  parameters.set("orientation", "landscape");
                  // For Android 2.2 and above
                  camera.setDisplayOrientation(0);
                  // Uncomment for Android 2.0 and above
                  parameters.setRotation(0);
               }
              camera.setParameters(parameters);
              camera.setPreviewDisplay(holder);
          } catch (IOException exception) {
             camera.release();

           }
            camera.startPreview();

        }


    public void surfaceDestroyed(SurfaceHolder holder) {
        // TODO Auto-generated method stub
        camera.stopPreview();
        camera.release();
        camera = null;
        previewing = false;
    }
}