package jrummikub.control.network;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.UUID;

import jrummikub.model.GameSettings;
import jrummikub.util.Connection;
import jrummikub.util.Event;
import jrummikub.util.GameData;
import jrummikub.util.IEvent;
import jrummikub.util.IListener;
import jrummikub.util.IListener1;
import jrummikub.util.IListener2;
import jrummikub.util.LoginData;
import jrummikub.view.IView;

/**
 * Class dealing with network connection, offering and choice of network games
 */
public class NetworkControl {
	private ConnectionControl connectionControl;
	private IView view;
	private List<Connection> connections = new ArrayList<Connection>();
	private Event stopNetworkEvent = new Event();

	private NetworkSettingsControl settingsControl;
	private GameOfferControl gameOfferControl;
	private GameJoinControl gameJoinControl;

	private Map<UUID, GameData> gameMap = new HashMap<UUID, GameData>();

	/**
	 * Creates a new network control
	 * 
	 * @param loginData
	 *          user's login data
	 * @param view
	 *          for events and handlers
	 */
	public NetworkControl(final LoginData loginData, final IView view) {
		this.view = view;
		connectionControl = new ConnectionControl(loginData);

		addConnectionControlListeners(loginData, view);

		connections.add(view.getGameListPanel().getJoinEvent()
				.add(new IListener1<GameData>() {
					@Override
					public void handle(GameData gameData) {
						join(gameData);
					}
				}));

		connections.add(view.getGameListPanel().getOpenNewGameEvent()
				.add(new IListener() {
					@Override
					public void handle() {
						createSettingsControl();
					}
				}));

		connections.add(view.getGameListPanel().getCancelEvent()
				.add(new IListener() {
					@Override
					public void handle() {
						abort();
						stopNetworkEvent.emit();
					}
				}));
	}

	private void join(GameData gameData) {
		view.showGameListPanel(false);
		connectionControl.joinGame(gameData.getGameID());
	}

	/**
	 * Adds the listeners for connection control events
	 * 
	 * @param loginData
	 *          player's login data
	 * @param view
	 *          view for events
	 */
	public void addConnectionControlListeners(final LoginData loginData,
			final IView view) {
		connections.add(connectionControl.getConnectedEvent().add(new IListener() {
			@Override
			public void handle() {
				view.getGameListPanel().setChannelName(loginData.getChannelName());
				view.showGameListPanel(true);
			}
		}));

		connections.add(connectionControl.getConnectionFailedEvent().add(
				new IListener() {
					@Override
					public void handle() {
						// TODO Auto-generated method stub

					}
				}));

		connections.add(connectionControl.getGameOfferEvent().add(
				new IListener1<GameData>() {
					@Override
					public void handle(GameData value) {
						GameData game = gameMap.get(value.getGameID());

						if (game == null) {
							game = value;
							gameMap.put(value.getGameID(), value);
						} else {
							game.setGameSettings(value.getGameSettings());
						}

						view.getGameListPanel().addGame(game);
					}
				}));
		connections.add(connectionControl.getGameWithdrawalEvent().add(
				new IListener1<UUID>() {
					@Override
					public void handle(UUID value) {
						GameData game = gameMap.get(value);

						if (game != null) {
							view.getGameListPanel().removeGame(game);
							gameMap.remove(value);
						}
					}
				}));
		connections.add(connectionControl.getGameJoinAckEvent().add(
				new IListener2<UUID, Boolean>() {
					@Override
					public void handle(UUID uuid, Boolean ack) {
						if (ack) {
							createGameJoinControl(uuid);
						} else {
							// TODO Error message
							System.err.println("Join NACKed");
							view.showGameListPanel(true);
						}
					}
				}));
	}

	private void createGameJoinControl(UUID uuid) {
		if (gameJoinControl != null) {
			return;
		}

		GameData gameData = gameMap.get(uuid);
		gameJoinControl = new GameJoinControl(connectionControl, gameData, view);
		gameJoinControl.startGameJoin();
	}

	/**
	 * Starts a new network connection with the sepcified data
	 */
	public void startNetwork() {
		connectionControl.connect();
	}

	/**
	 * Ends the network connection if canceled
	 */
	public void abort() {
		for (Connection c : connections) {
			c.remove();
		}
		view.showGameListPanel(false);

		if (settingsControl != null) {
			settingsControl.abort();
		}
		if (gameOfferControl != null) {
			gameOfferControl.abort();
		}
		if (gameJoinControl != null) {
			gameJoinControl.abort();
		}

		connectionControl.disconnect();
	}

	/**
	 * Getter for stopNetworkEvent
	 * 
	 * @return stopNetworkEvent
	 */
	public IEvent getStopNetworkEvent() {
		return stopNetworkEvent;
	}

	private void createSettingsControl() {
		if (settingsControl != null) {
			return;
		}
		view.showGameListPanel(false);

		settingsControl = new NetworkSettingsControl(
				connectionControl.getNickname(), view, new GameSettings());
		settingsControl.getOfferGameEvent().add(new IListener1<GameSettings>() {
			@Override
			public void handle(GameSettings settings) {
				settingsControl = null;
				createGameOfferControl(settings);
			}
		});
		settingsControl.getBackEvent().add(new IListener() {
			@Override
			public void handle() {
				settingsControl = null;
				view.showGameListPanel(true);
			}
		});
		settingsControl.startSettings();
	}

	private void createGameOfferControl(GameSettings settings) {
		if (gameOfferControl != null) {
			return;
		}
		gameOfferControl = new GameOfferControl(connectionControl, settings, view);
		gameOfferControl.startGameOffer();
	}

}