package com.example.instareport;

import java.io.File;
import java.text.SimpleDateFormat;
import java.util.Date;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.ContentValues;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.drawable.BitmapDrawable;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.provider.MediaStore.Images;
import android.provider.MediaStore.MediaColumns;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.ImageView;

/* This class is responsible for
 MainActivity activity.

 First phase:
 The 'MainActivity' is responsible for
 the first screen to appear.
 The main logic is, when the user presses
 the app, MainActivity should now
 start the Camera application,
 and then when the user start to press the
 shutter the image is then passed as an
 intent towards the Main Activity.

 Second phase:
 Once the image is received by the
 MainActivity, it is now passed towards
 the printer server

 Third phase:
 The pdf file is composed of:
 1.) image bitmap
 2.) gps coordinates
 3.) text

 Fourth phase:
 Raspberry Pi front end

 */

public class MainActivity extends Activity {

    static final int REQUEST_IMAGE_CAPTURE = 1;
    private ImageView mImageView;

    private static String imageFilePath;
    private static Uri fileUri;

    // private Bitmap imageBitmap;

    private void dispatchTakePictureIntent() {
        Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
            fileUri = getOutputMediaFileUri();
            takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);
            startActivityForResult(takePictureIntent, REQUEST_IMAGE_CAPTURE);
            ;
        }
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) {
            super.onActivityResult(requestCode, resultCode, data);
            addImageToGallery(imageFilePath, getApplicationContext());
            // imageBitmap = (Bitmap) data.getExtras().get("data");
            Bitmap b = new BitmapDrawable(getApplicationContext()
                    .getResources(), imageFilePath).getBitmap();
            mImageView.setImageBitmap(b);
        }
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mImageView = (ImageView) findViewById(R.id.imageView1);
        dispatchTakePictureIntent();
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {

        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.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();
        if (id == R.id.action_settings) {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }

    public String getPath(Uri uri) {
        String[] projection = { MediaColumns.DATA };
        Cursor cursor = getContentResolver().query(uri, projection, null, null,
                null);
        if (cursor != null) {
            cursor.moveToFirst();
            int columnIndex = cursor.getColumnIndexOrThrow(MediaColumns.DATA);
            String filePath = cursor.getString(columnIndex);
            cursor.close();
            return filePath;
        } else
            return uri.getPath();

    }

    /** Create a file Uri for saving an image or video */
    private static Uri getOutputMediaFileUri() {
        return Uri.fromFile(getOutputMediaFile());
    }

    /** Create a File for saving an image or video */
    @SuppressLint("SimpleDateFormat")
    private static File getOutputMediaFile() {
        // To be safe, you should check that the SDCard is mounted
        // using Environment.getExternalStorageState() before doing this.

        File mediaStorageDir = new File(
                Environment
                        .getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES),
                "instaReport");
        // This location works best if you want the created images to be shared
        // between applications and persist after your app has been uninstalled.

        // Create the storage directory if it does not exist
        if (!mediaStorageDir.exists()) {
            if (!mediaStorageDir.mkdirs()) {
                Log.d("instaReport", "failed to create directory");
                return null;
            }
        }

        // Create a media file name
        String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss")
                .format(new Date());
        File mediaFile;
        imageFilePath = mediaStorageDir.getPath() + File.separator + "IMG_"
                + timeStamp + ".jpg";
        mediaFile = new File(imageFilePath);

        return mediaFile;
    }

    public static void addImageToGallery(final String filePath,
            final Context context) {

        ContentValues values = new ContentValues();

        values.put(Images.Media.DATE_TAKEN, System.currentTimeMillis());
        values.put(Images.Media.MIME_TYPE, "image/jpeg");
        values.put(MediaStore.MediaColumns.DATA, filePath);

        context.getContentResolver().insert(Images.Media.EXTERNAL_CONTENT_URI,
                values);
    }

}