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;
    }
}