package mike.panciera.guimap;

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

import android.app.Activity;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Filter;
import android.widget.Filterable;
import android.widget.ImageView;
import android.widget.TextView;

import com.theopentutorials.android.beans.RowItem;


public class CustomBaseAdapter extends BaseAdapter implements Filterable {
    Context context;
    List<RowItem> rowItems;
    List<RowItem> initialRowItems;
    BusinessFilter filter;

    public CustomBaseAdapter(Context context, List<RowItem> items) {
        this.context = context;
        this.rowItems = items;
    }

    /*private view holder class*/
    private class ViewHolder {
        ImageView imageView;
        TextView txtTitle;
        TextView txtDesc;
    }

    public View getView(int position, View convertView, ViewGroup parent) {
        ViewHolder holder = null;

        LayoutInflater mInflater = (LayoutInflater)
            context.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
        if (convertView == null) {
            convertView = mInflater.inflate(R.layout.list_item, null);
            holder = new ViewHolder();
            holder.txtDesc = (TextView) convertView.findViewById(R.id.desc);
            holder.txtTitle = (TextView) convertView.findViewById(R.id.title);
            holder.imageView = (ImageView) convertView.findViewById(R.id.icon);
            convertView.setTag(holder);
        }
        else {
            holder = (ViewHolder) convertView.getTag();
        }

        RowItem rowItem = (RowItem) getItem(position);

        holder.txtDesc.setText(rowItem.getDesc());
        holder.txtTitle.setText(rowItem.getTitle());
        holder.imageView.setImageResource(rowItem.getImageId());

        return convertView;
    }

    @Override
    public int getCount() {
        return rowItems.size();
    }

    @Override
    public Object getItem(int position) {
        return rowItems.get(position);
    }

    @Override
    public long getItemId(int position) {
        return rowItems.indexOf(getItem(position));
    }

	@Override
	public Filter getFilter() {
		if (filter == null) {
			filter = new BusinessFilter();
		}
		return filter;
	}

	public class BusinessFilter extends Filter
	{
		@Override
		protected FilterResults performFiltering(CharSequence constraint){

			FilterResults results = new FilterResults();


			if (constraint == null || constraint.length() == 0) {
				results.values = initialRowItems;
				results.count = initialRowItems.size();

			}
			else {
				ArrayList<RowItem> nBusinessList = new ArrayList<RowItem>();
				for (RowItem r : rowItems) {
					if (r.getTitle().toUpperCase().contains(constraint.toString().toUpperCase()))
						nBusinessList.add(r);
				}
				results.values = nBusinessList;
				results.count = nBusinessList.size();
			}
			return results;
		}

		@Override
		protected void publishResults(CharSequence constraint, FilterResults results) {
			//Inform the adapter about the new list filtered
			if (results.count == 0)
			{notifyDataSetInvalidated();}
			else {
				rowItems = (ArrayList<RowItem>) results.values;
				notifyDataSetChanged();
			}
			}
		}

	}