package org.hedgewars.hedgeroid.netplay;

import java.util.ArrayList;

import java.util.Collection;

import java.util.Collections;

import java.util.List;

import java.util.Map;

import org.hedgewars.hedgeroid.R;

import org.hedgewars.hedgeroid.netplay.RoomList.Observer;

import android.content.Context;

import android.content.res.Resources;

import android.text.Layout.Alignment;

import android.text.SpannableStringBuilder;

import android.text.Spanned;

import android.text.style.AlignmentSpan;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

import android.widget.BaseAdapter;

import android.widget.TextView;

public class RoomListAdapter extends BaseAdapter implements Observer {

	private List<Room> rooms = new ArrayList<Room>();

	private Context context;

	public RoomListAdapter(Context context) {

		this.context = context;

	}

	public int getCount() {

		return rooms.size();

	}

	public Object getItem(int position) {

		return rooms.get(position);

	}

	public long getItemId(int position) {

		return rooms.get(position).id;

	}

	public boolean hasStableIds() {

		return true;

	}

	public void setList(Collection<Room> rooms) {

		this.rooms = new ArrayList<Room>(rooms);

		Collections.reverse(this.rooms); // We want to show the newest rooms first

		notifyDataSetChanged();

	}

	private static Spanned formatExtra(Resources res, Room room) {

		String ownermsg = res.getString(R.string.roomlist_owner, room.owner);

		String mapmsg = res.getString(R.string.roomlist_map, Room.formatMapName(res, room.map));

		String schememsg = res.getString(R.string.roomlist_scheme, room.scheme);

		String weaponsmsg = res.getString(R.string.roomlist_weapons,  room.weapons);

		SpannableStringBuilder ssb = new SpannableStringBuilder();

		ssb.append(ownermsg).append(" ").append(mapmsg).append("\n").append(schememsg).append(" ").append(weaponsmsg);

		int weaponOffset = ownermsg.length()+1+mapmsg.length()+1+schememsg.length()+1;

		ssb.setSpan(new AlignmentSpan.Standard(Alignment.ALIGN_OPPOSITE), ownermsg.length(), ownermsg.length()+mapmsg.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

		ssb.setSpan(new AlignmentSpan.Standard(Alignment.ALIGN_OPPOSITE), weaponOffset, weaponOffset+weaponsmsg.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

		return ssb;

	}

	public View getView(int position, View convertView, ViewGroup parent) {

		View v = convertView;

		TextView tv1;

		if (v == null) {

			LayoutInflater vi = LayoutInflater.from(context);

			v = vi.inflate(android.R.layout.simple_list_item_2, null);

			tv1 = (TextView)v.findViewById(android.R.id.text1);

			tv1.setCompoundDrawablePadding(5);

		} else {

			tv1 = (TextView)v.findViewById(android.R.id.text1);

		}

		Room room = rooms.get(position);

		int iconRes = room.inProgress ? R.drawable.roomlist_ingame : R.drawable.roomlist_preparing;

		TextView tv2 = (TextView)v.findViewById(android.R.id.text2);

		tv1.setCompoundDrawablesWithIntrinsicBounds(iconRes, 0, 0, 0);

		tv1.setText(room.name);

		tv2.setText(formatExtra(context.getResources(), room));

		return v;

	}

	public void itemAdded(Map<String, Room> map, String key, Room value) {

		setList(map.values());

	}

	public void itemRemoved(Map<String, Room> map, String key, Room oldValue) {

		setList(map.values());

	}

	public void itemReplaced(Map<String, Room> map, String key, Room oldValue,

			Room newValue) {

		setList(map.values());

	}

}