package de.test.trafficlightcountdown;

import java.text.DateFormat;
import java.text.NumberFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
import java.util.concurrent.TimeUnit;

import de.werneritsolutions.trafficlightcountdown.R;

import android.app.Activity;
import android.net.ParseException;
import android.os.Bundle;
import android.os.CountDownTimer;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

public class TrafficLightCountdownActivity extends Activity
{
  TextView day,hour,min,sec;
  int iDay,iHour,iMin,iSec;
  MyCount counter;
  Date endDate = null;
  Date startDate = null;
  NumberFormat myFormat = NumberFormat.getInstance();

  @Override
  public void onCreate(Bundle savedInstanceState)
  {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    final SimpleDateFormat outputFormat = new SimpleDateFormat("HH:mm:ss");
    day=(TextView)findViewById(R.id.day);
    hour=(TextView)findViewById(R.id.hour);
    min=(TextView)findViewById(R.id.min);
    sec=(TextView)findViewById(R.id.sec);
    myFormat.setMinimumIntegerDigits(2);

    final String currentDate = outputFormat.format(new Date());

    Button btnStart=(Button)findViewById(R.id.btnstart);

    btnStart.setOnClickListener(new View.OnClickListener()
    {
      public void onClick(View arg0)
      {
        try
        {
          try
          {
            endDate = outputFormat.parse(nextDate);
          }
          catch (java.text.ParseException e)
          {
            e.printStackTrace();
          }
          try
          {
            startDate=outputFormat.parse(currentDate);
          }
          catch (java.text.ParseException e)
          {
            e.printStackTrace();
          }
          long diffInMis= endDate.getTime() - startDate.getTime();
          if(diffInMis<0)
          {
            Toast.makeText(getBaseContext(), "Please, Enter valid Time...",Toast.LENGTH_SHORT).show();
          }
          else
          {
            long diff = TimeUnit.MILLISECONDS.toSeconds(diffInMis);
            iDay=(int) (diff/(60*60*24));
            long lday= (diff%(60*60*24));
            iHour=(int)(lday/3600);
            long lhour= (lday%(60*60));
            iMin=(int)(lhour/60);
            long lmin= (lhour%(60));
            iSec=(int)(lmin);
            hour.setText(String.valueOf(myFormat.format(iHour)).toString());
            min.setText(":"+String.valueOf(myFormat.format(iMin)).toString());
            sec.setText(":"+String.valueOf(myFormat.format(iSec)).toString());
            counter = new MyCount(iSec*1000,1000);
            counter.start();
          }
        }
        catch (ParseException e)
        {
          e.printStackTrace();
        }
      };
    });

    Button btnStop=(Button)findViewById(R.id.btnstop);
    btnStop.setOnClickListener(new View.OnClickListener()
    {
      public void onClick(View arg0)
      {
        counter.cancel();
        hour.setText("00");
        min.setText(":"+"00");
        sec.setText(":"+"00");
      }
    });
  }

  public class MyCount extends CountDownTimer
  {
    public MyCount(long millisInFuture, long countDownInterval)
    {
      super(millisInFuture, countDownInterval);
    }
    @Override
    public void onFinish()
    {
      counter = new MyCount(60000,1000);
      counter.start();
      iMin-=1;
      if(iMin>-1)
      {
        min.setText(":"+String.valueOf(myFormat.format(iMin)).toString());
      }
      else
      {
        iMin=59;
        min.setText(":"+String.valueOf(myFormat.format(iMin)).toString());
        iHour-=1;
        if(iHour>-1)
        {
          hour.setText(String.valueOf(myFormat.format(iHour)).toString());
        }
        else
        {
          iHour=11;
          hour.setText(String.valueOf(myFormat.format(iHour)).toString());
          iDay-=1;
          if(iDay>-1)
          {
            day.setText(" "+String.valueOf(iDay).toString());
          }
          else
          {
            day.setText("Green!");
            hour.setText("");
            min.setText("");
            sec.setText("");
            counter.cancel();
          }
        }
      }
    }

    @Override
    public void onTick(long millisUntilFinished)
    {
      sec.setText(":"+String.valueOf(myFormat.format(millisUntilFinished/1000)));
    }
  }
}