package com.example.praktikum2;

import android.annotation.SuppressLint;
import android.app.Service;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Handler;
import android.os.IBinder;
import android.os.Message;
import android.util.Log;

public class MyService5 extends Service {
    boolean isRunning = true;
    private Handler handler = new Handler() {
        @Override
        public void handleMessage(Message msg) {
            super.handleMessage(msg);
            Log.e("MyService5Async-Handler", "Handler got from MyService5Async: "
                    + (String)msg.obj);

        }
    };
    @Override
    public IBinder onBind(Intent arg0) {
        return null;
    }
    @Override
    public void onCreate() {
        super.onCreate();
    }

    @SuppressLint("LongLogTag")
    @Override
    public void onStart(Intent intent, int startId) {
        Log.e ("<<MyService5Async-onStart>>", "I am alive-5Async!");
// we place the slow work of the service in an AsynTask
// so the response we send our caller who run
// a "startService(...)" method gets a quick OK from us.
        new ComputeFibonacciRecursivelyTask().execute(20, 50);
    }//onStart
    // this recursive evaluation of Fibonacci numbers is exponential O(2^n)
// for large n values it should be very time-consuming!
    public Integer fibonacci(Integer n){
        if ( n==0 || n==1 )
            return 1;
        else
            return fibonacci(n-1) + fibonacci(n-2);
    }
    @SuppressLint("LongLogTag")
    @Override
    public void onDestroy() {
//super.onDestroy();
        Log.e ("<<MyService5Async-onDestroy>>", "I am dead-5-Async");
        isRunning = false;
    }//onDestroy

    public class ComputeFibonacciRecursivelyTask extends AsyncTask<

                Integer, Integer, Integer > {

        @Override
        protected Integer doInBackground(Integer... params) {
            for (int i=params[0]; i<params[1]; i++){
                Integer fibn = fibonacci(i);
                publishProgress(i, fibn);
            }
            return null;
        }
        @Override
        protected void onProgressUpdate(Integer... values) {
            super.onProgressUpdate(values);
            Intent intentFilter5 = new Intent("matos.action.GOSERVICE5");
            String data = "dataItem-5-fibonacci-AsyncTask"
                    + values[0] + ": " + values[1];

            intentFilter5.putExtra("MyService5DataItem", data);
            sendBroadcast(intentFilter5);
// (next id not really needed!!! - we did the broadcasting already)
            Message msg = handler.obtainMessage(5, data);
            handler.sendMessage(msg);
        }
    }// ComputeFibonacciRecursivelyTask
}