package org.lucasr.transition.samples;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;

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

public class SomeAdapter extends BaseAdapter {
    private static class Item {
        public final long id;
        public final String value;

        public Item(long id, String value) {
            this.id = id;
            this.value = value;
        }
    }

    private final Context context;
    private final List<Item> items = new ArrayList<Item>();
    private int currentId = 0;

    public SomeAdapter(Context context) {
        super();
        this.context = context;
    }

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

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

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        if (convertView == null) {
            convertView = LayoutInflater.from(context).inflate(R.layout.text_item, parent, false);
        }

        Item item = items.get(position);
        ((TextView) convertView).setText(item.value + " (" + item.id + ")");

        return convertView;
    }

    @Override
    public long getItemId(int position) {
        return items.get(position).id;
    }

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

    private Item createItem(String value) {
        long id = ++currentId;
        return new Item(id, value);
    }

    public void add(String value) {
        items.add(createItem(value));
        notifyDataSetChanged();
    }

    public void add(int index, String value) {
        items.add(index, createItem(value));
        notifyDataSetChanged();
    }

    public void remove(int index) {
        items.remove(index);
        notifyDataSetChanged();
    }
}