package pl.danek.battery;

import android.app.IntentService;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.Service;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.media.audiofx.NoiseSuppressor;
import android.os.BatteryManager;
import android.os.Handler;
import android.os.IBinder;
import android.support.v4.app.NotificationCompat;
import android.widget.Toast;

public class BatteryService extends IntentService{

    private BroadcastReceiver receiver = new BroadcastReceiver(){

        @Override
        public void onReceive(Context context, Intent intent) {
            calculateBatteryLevel(intent);
        }

    };

    public static int NOTIFICATION_ID = 12354;

    NotificationManager manager;
    Notification notification;
    int batteryLevel;

    private boolean finish = true;


    public BatteryService() {
        super("Battery Service");
    }

    @Override
    protected void onHandleIntent(Intent intent) {
        registerReceiver(receiver, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));


        manager = (NotificationManager)getSystemService(Context.NOTIFICATION_SERVICE);

        do {
            showNotification();
            try {
                Thread.sleep(5000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        } while (finish );
    }


    private void calculateBatteryLevel(Intent intent) {
        batteryLevel = intent.getIntExtra(BatteryManager.EXTRA_LEVEL,-1);
    }

    private void showNotification() {
        int icon = choseIcon();
        notification = new Notification.Builder(this)
        .setContentTitle("Battery level")
        .setSmallIcon(icon)
        .setOngoing(true)
        .setContentText(batteryLevel + " %")
        .build();
        manager.notify(NOTIFICATION_ID, notification);
    }


    private int choseIcon() {
        if (batteryLevel < 25) {
            return R.drawable.battery_less;
        }
        if (batteryLevel < 50) {
            return R.drawable.battery_half;
        }
        if (batteryLevel < 75) {
            return R.drawable.battery_more;
        }
        return R.drawable.battery_full;
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        manager.cancelAll();
        finish = false;
    }

}