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);

		}

	};

}