package info.androidhive.slidingmenu;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import android.app.Activity;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.widget.TextView;
import android.widget.Toast;

public class ActivitySwipeDetector implements View.OnTouchListener {

static final String logTag = "ActivitySwipeDetector";
private Activity activity;
static final int MIN_DISTANCE = 100;
private float downX, downY, upX, upY;
private TextView txt;
int textviewindex=1;
String stanza;
String[] strArrays;
List<String> strArray;

public ActivitySwipeDetector(Activity activity){
    this.activity = activity;
    txt = (TextView) ((Activity)activity).findViewById(R.id.songtext);


    stanza=txt.getText().toString();
    strArrays = stanza.split("\n\n\n");
    strArray = new ArrayList<String>(Arrays.asList(strArrays));

 }


public void onRightToLeftSwipe(){
    Log.i(logTag, "RightToLeftSwipe!");
 //   activity.doSomething();
}

public void onLeftToRightSwipe(){
    Log.i(logTag, "LeftToRightSwipe!");
   // activity.doSomething();
}

public void onTopToBottomSwipe(){
    Log.i(logTag, "onTopToBottomSwipe!");
   // activity.doSomething();
}

public void onBottomToTopSwipe(){
    Log.i(logTag, "onBottomToTopSwipe!");
//    activity.doSomething();
}

public boolean onTouch(View v, MotionEvent event) {
    switch(event.getAction()){
        case MotionEvent.ACTION_DOWN: {
            downX = event.getX();
            downY = event.getY();
            return true;
        }
        case MotionEvent.ACTION_UP: {
            upX = event.getX();
            upY = event.getY();

            float deltaX = downX - upX;
            float deltaY = downY - upY;

       // swipe horizontal?
        if(Math.abs(deltaX) > Math.abs(deltaY))
        {
            if(Math.abs(deltaX) > MIN_DISTANCE){
                // left or right
                if(deltaX < 0) { //this.onRightSwipe(); return true; }
                if(deltaX > 0) { //this.onLeftSwipe(); return true; }
            }
            else {
                    Log.i(logTag, "Horizontal Swipe was only " + Math.abs(deltaX) + " long, need at least " + MIN_DISTANCE);
                    return false; // We don't consume the event
            }
        }
        // swipe vertical?
        else
        {
            if(Math.abs(deltaY) > MIN_DISTANCE){
                // top or down
                if(deltaY < 0) { this.onDownSwipe(); return true; }
                if(deltaY > 0) { this.onUpSwipe(); return true; }
            }
            else {
                    Log.i(logTag, "Vertical Swipe was only " + Math.abs(deltaX) + " long, need at least " + MIN_DISTANCE);
                    return false; // We don't consume the event
            }
        }

            return true;
        }
    }
        if (downX < upY)
        {
           // Toast.makeText(ActivitySwipeDetector.this, "Up to down",Toast.LENGTH_SHORT).show();
        onDownSwipe();
            Log.d("swipe","up to down");
  return true;
        }

        //if Down to UP sweep event on screen
        if (downY > upY)
        {
            onUpSwipe();
            Log.d("swipe","down to up");
    return true;
            //    Toast.makeText(this, "Down to UP Swap Performed", Toast.LENGTH_LONG).show();
         }
      //  break;

    return true;
        }
     }
    return false;
}

private void onDownSwipe() {
    // TODO Auto-generated method stub

    if(textviewindex<strArray.size() && textviewindex!=0)
    {

    String singlestanza=strArray.get(textviewindex);

    System.out.println(singlestanza);


    Log.d("swipe", "down swipe!");
    txt.setText(singlestanza);
    textviewindex++;
    }
}
private void onUpSwipe() {
    // TODO Auto-generated method stub
    Log.d("swipe", "up swipe!");

}
}