import java.util.ArrayList;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AbsListView;
import android.widget.BaseExpandableListAdapter;
import android.widget.ExpandableListView;
import android.widget.TextView;

public class CatAdapter extends BaseExpandableListAdapter {
	private Context context;
	private LayoutInflater inflater;
	private ArrayList<Category> categories;
	
	public CatAdapter(Context context, ArrayList<Category> categories) {
		this.context = context;
		inflater = LayoutInflater.from(context);
		this.categories = categories;
	}
	
	@Override
	public Object getChild(int groupPosition, int childPosition) {
		return categories.get(groupPosition).childs.get(childPosition);
	}

	@Override
	public long getChildId(int groupPosition, int childPosition) { 
		return childPosition;
	}

	@Override
	public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
		
		convertView = inflater.inflate(R.layout.catitem, parent, false);
		TextView textView_catName = (TextView)convertView.findViewById(R.id.textView_catName);
		Category current = categories.get(groupPosition).childs.get(childPosition);
		textView_catName.setText(groupPosition + " , " + childPosition);

		if(current.childs.size() > 0 ) {
			ExpandableListView elv = new ExpandableListView(context);
			elv.setLayoutParams(new AbsListView.LayoutParams(AbsListView.LayoutParams.WRAP_CONTENT,  AbsListView.LayoutParams.WRAP_CONTENT));
			elv.setAdapter(new CatAdapter(context, current.childs));
			((ViewGroup)convertView).addView(elv);
		}
		
		return convertView;
	}

	@Override
	public int getChildrenCount(int groupPosition) {
		return categories.get(groupPosition).childs.size();
	}

	@Override
	public Object getGroup(int groupPosition) {
		return categories.get(groupPosition);
	}

	@Override
	public int getGroupCount() {
		return categories.size();
	}

	@Override
	public long getGroupId(int groupPosition) {
		return groupPosition;
	}

	@Override
	public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
		convertView = inflater.inflate(R.layout.catitem, parent, false);
		TextView textView_catName = (TextView)convertView.findViewById(R.id.textView_catName);
		Category current = categories.get(groupPosition);
		textView_catName.setText("" + groupPosition);

		return convertView;
	}

	@Override
	public boolean hasStableIds() {
		return false;
	}

	@Override
	public boolean isChildSelectable(int groupPosition, int childPosition) {
		return false;
	}
}