package org.hedgewars.hedgeroid.Downloader;

import org.hedgewars.hedgeroid.R;

import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.view.Gravity;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.FrameLayout;
import android.widget.ImageView;
import android.widget.LinearLayout;

public class DownloadListActivity extends FragmentActivity implements OnItemMovementListener{

	private FrameLayout layout = null;
	private LinearLayout downloadQueueContainer = null;
	private View infoView = null;
	private ImageView arrow = null;
	private int halfSize = 0;
	private DownloadPackage task = null;

	public void onCreate(Bundle savedInstanceState){
		super.onCreate(savedInstanceState);

		setContentView(R.layout.download_listactivity);
		//FragmentManager fm = this.getSupportFragmentManager();
		//if(fm.findFragmentById(android.R.id.content) == null){
		//	DownloadListFragment listfrag = new DownloadListFragment();
		//	fm.beginTransaction().add(android.R.id.content, listfrag).commit();
		//}

		layout = (FrameLayout)findViewById(R.id.downloadFrameLayout);
		downloadQueueContainer = (LinearLayout) findViewById(R.id.downloadQueueContainer);
	}

	public void onNewItemSelected(DownloadPackage _task, int x, int minX, int maxX, int size) {
		if(layout != null){
			if(!_task.equals(task)){//if it's a new task refresh the whole thing
				task = _task;
				layout.removeView(infoView);
				infoView = null;
			}
			
			if(infoView == null){//build iv if it hasn't been created yet
				infoView = this.getLayoutInflater().inflate(R.layout.download_info, layout, false);
				FrameLayout.LayoutParams params = (android.widget.FrameLayout.LayoutParams) infoView.getLayoutParams();
				params.gravity = Gravity.NO_GRAVITY;
				params.height = size;
				arrow = (ImageView)infoView.findViewById(R.id.arrow);
				arrow.setVisibility(View.INVISIBLE);
				halfSize = size/2;
				
				Button yes = (Button)infoView.findViewById(R.id.download);
				Button no = (Button)infoView.findViewById(R.id.cancel);
				yes.setOnClickListener(yesClicker);
				no.setOnClickListener(noClicker);
				
				layout.addView(infoView, params);
			}
		}
	}

	public void onViewMoved(int x, int minX, int maxX) {
		if(halfSize == -1){
			if(infoView.getHeight() != 0){
				halfSize = infoView.getHeight()/2;
			}
		}
		if(layout != null && infoView != null){
			FrameLayout.LayoutParams params = ((FrameLayout.LayoutParams)infoView.getLayoutParams());
			if(x - halfSize < minX){
				params.topMargin = 0;
				arrow.setVisibility(View.INVISIBLE);
				params.gravity = Gravity.TOP;
			}else if (x + halfSize >= maxX){
				params.topMargin = 0;
				arrow.setVisibility(View.INVISIBLE);
				params.gravity = Gravity.BOTTOM;
			}else{
				params.topMargin = x - halfSize;
				params.gravity = Gravity.NO_GRAVITY;
				arrow.setVisibility(View.VISIBLE);
			}
			
			infoView.requestLayout();
			
		}
	}
	
	private OnClickListener yesClicker = new OnClickListener(){
		public void onClick(View v){
			FragmentManager fm = getSupportFragmentManager();
			FragmentTransaction ft= fm.beginTransaction();
			DownloadFragment df = DownloadFragment.getInstance(task);
			
			ft.add(R.id.downloadQueueContainer, df).commit();
			//ft.show(new DownloadFragment());
			
			task = null;
			layout.removeView(infoView);
		}
	};
	
	private OnClickListener noClicker = new OnClickListener(){
		public void onClick(View v){
			task = null;
			layout.removeView(infoView);
		}
	};
}