/app/src/main/java/ua/pp/garik/gifcam/asynctask/CreateGif.java

package ua.pp.garik.gifcam.asynctask;



import android.app.Activity;

import android.app.Notification;

import android.app.NotificationManager;

import android.app.PendingIntent;

import android.content.Context;

import android.content.Intent;

import android.content.SharedPreferences;

import android.graphics.Bitmap;

import android.graphics.BitmapFactory;

import android.os.AsyncTask;

import android.os.Environment;

import android.preference.PreferenceManager;

import android.widget.Button;



import java.io.ByteArrayOutputStream;

import java.io.File;

import java.io.FileOutputStream;

import java.io.OutputStream;

import java.text.SimpleDateFormat;

import java.util.Date;



import ua.pp.garik.gifcam.R;

import ua.pp.garik.gifcam.activity.MainActivity;

import ua.pp.garik.gifcam.entity.Video;

import ua.pp.garik.gifcam.utils.GifEncoder;

import ua.pp.garik.gifcam.utils.Utils;



/**

 * Created by Gary on 14.03.2015.

 */



public class CreateGif extends AsyncTask<Object, Integer, String[]> {

    private Context context;

    private int framerate;

    private int frameDelay = 1000;

    private boolean upload = false;

    private boolean kill_source = true;

    private Video video;





    public CreateGif(Context contextin) {

        context = contextin;

        SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(context);

        framerate = preferences.getInt("framerate", 2);

        frameDelay = Math.round(1000 / framerate);





    }



    @Override

    protected void onPostExecute(String[] strings) {

        super.onPostExecute(strings);

        Button btn_save = (Button)((Activity)this.context).findViewById(R.id.btn_save);

        if (btn_save != null) {

            btn_save.setText("Saved");

        }



        Intent intent = new Intent(context, MainActivity.class);

        PendingIntent pIntent = PendingIntent.getActivity(context, 0, intent, 0);



        Notification notification = new Notification.Builder(context)

            .setContentTitle("Job complete")

            .setContentText("GifCam - creating GIF")

            .setSmallIcon(R.mipmap.ic_launcher)

            .setContentIntent(pIntent)

            .setAutoCancel(true)

            .build();





        NotificationManager notificationManager =

            (NotificationManager) context.getSystemService(Activity.NOTIFICATION_SERVICE);



        notificationManager.notify(0, notification);





        Utils utils = new Utils();

        File outputFolder = utils.prepareOutputDirectory();

        String extension = "";

        if (this instanceof CreateGif) {

            extension = "gif";

        } else {

            extension = "mp4";

        }



        if (outputFolder != null) {

            File mediaStorageDir = utils.getMediaStorageDir();

            if (mediaStorageDir != null) {

                String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());

                File inputFile = new File(mediaStorageDir.getPath() + File.separator + "movie" + "." + extension);

                //костиль, ага

                while (!inputFile.exists()) {

                }

                File outputFile = new File(outputFolder.getPath() + File.separator + "movie_" + timeStamp + "." + extension);

                inputFile.renameTo(outputFile);

                while (!outputFile.exists()) {

                }



                if (upload) {

                    utils.saveResult(context, outputFile, kill_source, video, framerate);

                } else {

                    if (kill_source) {

                        utils.killSources(mediaStorageDir);

                    }

                }



            }

        }





    }





    protected void onProgressUpdate(Integer... progress) {

        Notification notification = new Notification.Builder(context)

            .setContentTitle("Photo " + progress[0])

            .setProgress(progress[1], progress[0], false)

            .setContentText("GifCam - creating GIF")

            .setSmallIcon(R.mipmap.ic_launcher)

            .setAutoCancel(true)

            .build();





        NotificationManager notificationManager =

            (NotificationManager) context.getSystemService(Activity.NOTIFICATION_SERVICE);

        notificationManager.notify(0, notification);

    }





    @Override

    protected String[] doInBackground(Object... params) {

        File mediaStorageDir = (File) params[0];

        video = (Video) params[1];

        kill_source = (boolean) params[2];

        upload = (boolean) params[3];



        ByteArrayOutputStream bos = new ByteArrayOutputStream();



        GifEncoder encoder = new GifEncoder();

        encoder.start(bos);



        if (mediaStorageDir.isDirectory()) {

            String[] children = mediaStorageDir.list();

            int filesCount = mediaStorageDir.list().length;



            int count = 0;

            for (String aChildren : children) {

                BitmapFactory.Options options = new BitmapFactory.Options();

                options.inPreferredConfig = Bitmap.Config.ARGB_8888;

                Bitmap bitmap = BitmapFactory.decodeFile(mediaStorageDir + "/" + aChildren, options);

                encoder.setDelay(frameDelay);

                encoder.addFrame(bitmap);

                publishProgress(count++, filesCount);

//                new File(mediaStorageDir, aChildren).delete();

            }

        }



        encoder.finish();





        bos.toByteArray();

        OutputStream outputStream = null;

        try {

            outputStream = new FileOutputStream(new File(Environment.getExternalStoragePublicDirectory(

                Environment.DIRECTORY_PICTURES), Utils.FOLDER_NAME) + "/movie.gif");

            bos.writeTo(outputStream);

            bos.close();

        } catch (Exception e) {

            e.printStackTrace();

        }



        return null;

    }





}