HomeWidget.java

package com.sharad.quizbowl.ui.client;

import java.sql.Timestamp;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;

import com.google.gwt.core.client.GWT;
import com.google.gwt.core.client.JsArrayInteger;
import com.google.gwt.core.client.JsArrayString;
import com.google.gwt.dom.client.Style.Unit;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.logical.shared.SelectionEvent;
import com.google.gwt.event.logical.shared.SelectionHandler;
import com.google.gwt.http.client.URL;
import com.google.gwt.jsonp.client.JsonpRequestBuilder;
import com.google.gwt.uibinder.client.UiBinder;
import com.google.gwt.uibinder.client.UiField;
import com.google.gwt.user.cellview.client.CellBrowser;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.gwt.user.client.ui.Anchor;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.DialogBox;
import com.google.gwt.user.client.ui.DockLayoutPanel;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.HasHorizontalAlignment;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.google.gwt.user.client.ui.LayoutPanel;
import com.google.gwt.user.client.ui.RootLayoutPanel;
import com.google.gwt.user.client.ui.TabLayoutPanel;
import com.google.gwt.user.client.ui.VerticalPanel;
import com.google.gwt.user.client.ui.Widget;
import com.sharad.quizbowl.ui.client.json.tossup.Tossup;
import com.sharad.quizbowl.ui.client.json.tossup.TossupsPackage;
import com.sharad.quizbowl.ui.client.util.Resources;
import com.sharad.quizbowl.ui.client.util.guava.Joiner;
import com.sharad.quizbowl.ui.client.widget.AnswerInfoPanel;
import com.sharad.quizbowl.ui.client.widget.Browser;
import com.sharad.quizbowl.ui.client.widget.Chatroom;
import com.sharad.quizbowl.ui.client.widget.FilterBar;
import com.sharad.quizbowl.ui.client.widget.FilterBox;
import com.sharad.quizbowl.ui.client.widget.MultiReader;
import com.sharad.quizbowl.ui.client.widget.Reader;
import com.sharad.quizbowl.ui.client.widget.Search;
import com.sharad.quizbowl.ui.client.widget.Search.Configuration;
import com.sharad.quizbowl.ui.client.widget.SortBar;
import com.sharad.quizbowl.ui.client.widget.TossupInfoPanel;
import com.sharad.quizbowl.ui.client.widget.UserBox;
import com.sharad.quizbowl.ui.client.widget.event.AnswerEvent;
import com.sharad.quizbowl.ui.client.widget.event.AnswerEventHandler;
import com.sharad.quizbowl.ui.client.widget.event.AnswerInfoEvent;
import com.sharad.quizbowl.ui.client.widget.event.AnswerInfoEventHandler;
import com.sharad.quizbowl.ui.client.widget.event.ChangeWindowEvent;
import com.sharad.quizbowl.ui.client.widget.event.ChangeWindowEventHandler;
import com.sharad.quizbowl.ui.client.widget.event.FilterEvent;
import com.sharad.quizbowl.ui.client.widget.event.FilterEventHandler;
import com.sharad.quizbowl.ui.client.widget.event.FilterResultEvent;
import com.sharad.quizbowl.ui.client.widget.event.FilterResultEventHandler;
import com.sharad.quizbowl.ui.client.widget.event.LoginEvent;
import com.sharad.quizbowl.ui.client.widget.event.LoginEventHandler;
import com.sharad.quizbowl.ui.client.widget.event.NewTossupEvent;
import com.sharad.quizbowl.ui.client.widget.event.NewTossupEventHandler;
import com.sharad.quizbowl.ui.client.widget.event.ReadEvent;
import com.sharad.quizbowl.ui.client.widget.event.ReadEventHandler;
import com.sharad.quizbowl.ui.client.widget.event.SortEvent;
import com.sharad.quizbowl.ui.client.widget.event.SortEventHandler;

public class HomeWidget extends Composite {

	private static HomeWidgetUiBinder uiBinder = GWT
			.create(HomeWidgetUiBinder.class);

	interface HomeWidgetUiBinder extends UiBinder<Widget, HomeWidget> {
	}

	public LayoutPanel main;
	public static boolean LOGGED_IN = false;
	public static String USERNAME = null;
	private JsArrayInteger years;
	private JsArrayString tournaments, difficulties, categories;
	private static FilterBar filterBar;
	private static SortBar sortBar;
	public static Widget simpleSearch;
	@UiField(provided = true)
	public static FlowPanel horizontalPanel;
	public static LayoutPanel centerPanel;
	@UiField
	static DockLayoutPanel searchPanel;
	@UiField
	DockLayoutPanel multiReaderPanel;
	public static Search search;
	private TossupPanel tossupPanel;
	@UiField(provided = true)
	FilterBox readerBox;
	@UiField
	Reader reader;
	@UiField
	TossupInfoPanel tossupInfoPanel;
	@UiField
	AnswerInfoPanel answerInfoPanel;
	@UiField
	static Anchor login;
	@UiField
	Chatroom chatroom;
	static CreateUserBox createBox = new CreateUserBox();
	static LoginBox loginBox = new LoginBox();
	static SignoutBox signoutBox = new SignoutBox();
	@UiField
	static TabLayoutPanel tabPanel;
	@UiField
	UserBox userBox;
	@UiField
	static Button startButton;
	static MultiReader multiReader;
	@UiField(provided = true)
	CellBrowser browser;

	public HomeWidget(JsArrayInteger years, JsArrayString tournaments,
			JsArrayString difficulties, JsArrayString categories) {
		multiReader = new MultiReader();
		readerBox = new FilterBox(years, tournaments, difficulties, categories,
				false, "", "Generate");

		readerBox.addFilterEventHandler(new FilterEventHandler() {

			@Override
			public void onTossupsReceived(FilterEvent event) {
				event.getParameters().put("limit",
						Arrays.asList(new String[] { "1" }));
				event.getParameters().put("random",
						Arrays.asList(new String[] { "true" }));
				readTossups(event.getParameters());

			}

		});
		this.years = years;
		this.tournaments = tournaments;
		this.difficulties = difficulties;
		this.categories = categories;
		search = new Search(years, tournaments, difficulties, categories);
		search.addFilterEventHandler(new FilterEventHandler() {

			@Override
			public void onTossupsReceived(FilterEvent event) {
				searchTossups(event.getParameters());

			}

		});
		main = new LayoutPanel();
		horizontalPanel = new FlowPanel();
		centerPanel = new LayoutPanel();
		searchPanel = new DockLayoutPanel(Unit.PX);
		// TODO
		browser = new CellBrowser(new Browser.DatabaseBrowseTreeModel(
				difficulties), null);
		main.add(uiBinder.createAndBindUi(this));
		setSearchConfiguration(Search.DEFAULT_CONFIGURATION);
		reader.addReadEventHandler(new ReadEventHandler() {
			@Override
			public void onRead(ReadEvent event) {
				tossupInfoPanel.loadTossup(event.getTossup());
			}

		});
		reader.addAnswerInfoEventHandler(new AnswerInfoEventHandler() {

			@Override
			public void onAnswerInfoReceived(AnswerInfoEvent event) {
				answerInfoPanel.loadAnswerInfo(event.getInfo());
			}

		});
		reader.addNewTossupEventHandler(new NewTossupEventHandler() {

			@Override
			public void onNewTossup(NewTossupEvent event) {
				readerBox.generate();
			}

		});
		reader.addAnswerEventHandler(new AnswerEventHandler() {

			@Override
			public void onAnswerReceived(AnswerEvent event) {
				if (LOGGED_IN) {
					submitAnswer(USERNAME, event.getTossup().getPkey(), event
							.getAnswer(), event.isCorrect(), event.getScore(),
							(new Timestamp(event.getTimestamp().getTime()))
									.toString());
				}
			}

		});
		initWidget(main);
		multiReaderPanel.add(multiReader);
		loginBox.addLoginEventHandler(new LoginEventHandler() {

			@Override
			public void onLogin(LoginEvent event) {
				login(event.getUser(), event.getPassword());
			}

		});
		createBox.addLoginEventHandler(new LoginEventHandler() {

			@Override
			public void onLogin(LoginEvent event) {
				createUser(event.getUser(), event.getPassword());
			}
		});
		loginBox.addChangeWindowEventHandler(new ChangeWindowEventHandler() {
			@Override
			public void onWindowChange(ChangeWindowEvent event) {
				loginBox.hide();
				createBox.show();
				signoutBox.hide();
			}
		});
		createBox.addChangeWindowEventHandler(new ChangeWindowEventHandler() {
			@Override
			public void onWindowChange(ChangeWindowEvent event) {
				loginBox.show();
				createBox.hide();
				signoutBox.hide();
			}
		});
		login.addClickHandler(new ClickHandler() {

			@Override
			public void onClick(ClickEvent event) {
				if (!LOGGED_IN) {
					loginBox.show();
					loginBox.setFocus();
				} else {
					// loginDialog.setHTML("Sign out?");
					// loginDialog.add(signoutBox);
					userBox.setVisible(!userBox.isVisible());
				}

			}

		});
		tabPanel.addSelectionHandler(new SelectionHandler<Integer>() {

			@Override
			public void onSelection(SelectionEvent<Integer> event) {
				setHash(((HTML) tabPanel.getTabWidget(event.getSelectedItem()))
						.getText().toLowerCase());

			}

		});
		if (getHash() != "") {
			changeTab(getHash());
		}
		HomeWidget.exportStaticMethods();
		userBox.setVisible(false);
		userBox.signoutLink.addClickHandler(new ClickHandler() {

			@Override
			public void onClick(ClickEvent event) {
				loginBox.hide();
				createBox.hide();
				signoutBox.show();
				userBox.setVisible(false);
			}

		});

		signoutBox.yesButton.addClickHandler(new ClickHandler() {

			@Override
			public void onClick(ClickEvent event) {
				signoutBox.hide();
				LOGGED_IN = false;
				startButton.setEnabled(LOGGED_IN);
				USERNAME = null;
				login.setText("Log In");
				logout();

			}

		});
		signoutBox.noButton.addClickHandler(new ClickHandler() {

			@Override
			public void onClick(ClickEvent event) {
				signoutBox.hide();
			}

		});
		startButton.setEnabled(LOGGED_IN);
		startButton.addClickHandler(new ClickHandler() {

			@Override
			public void onClick(ClickEvent event) {
				if (LOGGED_IN) {
					startGame();
				} else {
					Window.alert("Please log in");
				}

			}

		});
		sortBar = new SortBar();
		sortBar.setStyleName("filterBar");
		sortBar.addSortResultEventHandler(new SortEventHandler() {

			@Override
			public void onSort(SortEvent event) {
				tossupPanel.sort(event.getComparator());
			}

		});

	}

	protected static native void logout()/*-{
		$wnd.now.logout();
	}-*/;

	protected static native void startGame()/*-{
		$wnd.now.startGame();
	}-*/;

	public void readTossups(HashMap<String, List<String>> params) {
		String parameters = "";
		String delimiter = "";
		for (String s : params.keySet()) {
			if (params.get(s).size() != 0) {
				parameters += delimiter
						+ s
						+ "="
						+ URL.encodeQueryString((Joiner.on("|").join(params
								.get(s))));
				delimiter = "&";
			}
		}
		JsonpRequestBuilder tossupGrabber = new JsonpRequestBuilder();
		tossupGrabber.setTimeout(30000);
		tossupGrabber.requestObject(QuizbowlUI.SERVER_URL
				+ "/query?alt=json-in-script&" + parameters,
				new AsyncCallback<TossupsPackage>() {

					@Override
					public void onFailure(Throwable caught) {
						Window.alert(caught.getMessage());
					}

					@Override
					public void onSuccess(TossupsPackage result) {
						List<Tossup> list = new ArrayList<Tossup>();
						for (int i = 0; i < result.getTossups().length(); i++) {
							list.add(result.getTossups().get(i));
						}
						reader.setTossups(list);
					}
				});

	}

	public void searchTossups(HashMap<String, List<String>> params) {
		if (LOGGED_IN)
			params.put("username",
					Arrays.asList(new String[] { HomeWidget.USERNAME }));
		String parameters = "";
		String delimiter = "";
		for (String s : params.keySet()) {
			if (params.get(s).size() != 0) {
				parameters += delimiter
						+ s
						+ "="
						+ URL.encodeQueryString((Joiner.on("|").join(params
								.get(s))));
				delimiter = "&";
			}
		}
		JsonpRequestBuilder tossupGrabber = new JsonpRequestBuilder();
		tossupGrabber.setTimeout(30000);
		tossupGrabber.requestObject(QuizbowlUI.SERVER_URL
				+ "/query?alt=json-in-script&" + parameters,
				new AsyncCallback<TossupsPackage>() {

					@Override
					public void onFailure(Throwable caught) {
						Window.alert(caught.getMessage());
					}

					@Override
					public void onSuccess(TossupsPackage result) {
						search.getLoading().setVisible(false);
						List<Tossup> list = new ArrayList<Tossup>();
						if (filterBar == null) {
							filterBar = new FilterBar();
							filterBar.setStyleName("filterBar");
							filterBar
									.addFilterResultEventHandler(new FilterResultEventHandler() {

										@Override
										public void onFilter(
												FilterResultEvent event) {
											tossupPanel.filter(
													event.getDifficulties(),
													event.getTournaments(),
													event.getCategories());
										}

									});
						}
						String temp = search.getSearchBox().getText();
						setSearchConfiguration(Configuration.HORIZONTAL);
						search.getSearchBox().setText(temp);
						for (int i = 0; i < result.getTossups().length(); i++) {
							list.add(result.getTossups().get(i));
						}
						if (tossupPanel != null) {
							tossupPanel.setTossups(list, false);
							searchPanel.remove(tossupPanel);
						} else {
							tossupPanel = new TossupPanel(list);
							tossupPanel
									.addFilterResultEventHandler(new FilterResultEventHandler() {

										@Override
										public void onFilter(
												FilterResultEvent event) {
											filterBar.reconfigure(
													event.getDifficulties(),
													event.getTournaments(),
													event.getCategories());
										}

									});
						}
						searchPanel.add(tossupPanel);

						filterBar.reconfigure(tossupPanel.getDifficulties(),
								tossupPanel.getTournaments(),
								tossupPanel.getCategories());

					}
				});

		search.getLoading().setUrl(Resources.IMAGE_LOADING);
		search.getLoading().setVisible(true);
	}

	public static void setSearchConfiguration(Configuration config) {
		if (!config.equals(search.getConfiguration())) {
			horizontalPanel.clear();
			centerPanel.clear();
			searchPanel.clear();
			simpleSearch = config.getUiBinder().createAndBindUi(search);
			if (config.equals(Configuration.HORIZONTAL)) {
				RootLayoutPanel.get().setStyleName("nonSplashStyle");
				horizontalPanel.add(simpleSearch);
				simpleSearch.setStyleName("horizontalSearch");
				horizontalPanel.setVisible(true);
				horizontalPanel.setWidth("100%");
				horizontalPanel.setHeight("100%");
				centerPanel.setVisible(false);
				searchPanel.addNorth(horizontalPanel, 60);
				VerticalPanel temp = new VerticalPanel();
				temp.add(filterBar);
				temp.add(sortBar);
				searchPanel.addWest(temp, 200);
			} else if (config.equals(Configuration.VERTICAL)) {
				RootLayoutPanel.get().setStyleName("splashStyle");
				centerPanel.add(simpleSearch);
				centerPanel.setVisible(true);
				horizontalPanel.setVisible(false);
				HTML label = new HTML(
						"Copyright © 2011 Sharad Vikram. All Rights Reserved. Styles and CSS done by <a href=\"http://www.geraldfong.com\">Gerald Fong</a>.");
				label.setStyleName("copyrightText");
				HorizontalPanel temp = new HorizontalPanel();
				temp.setWidth("100%");
				temp.setHorizontalAlignment(HasHorizontalAlignment.ALIGN_CENTER);
				temp.add(label);
				searchPanel.addSouth(temp, 20);
				searchPanel.add(centerPanel);

			}
			search.setConfiguration(config);
		}
	}

	public static void changeTab(String tab) {
		tab = tab.replaceAll("#", "");

		for (int i = 0; i < tabPanel.getWidgetCount(); i++) {
			if (tab.equals(((HTML) tabPanel.getTabWidget(i)).getText()
					.toLowerCase())) {
				tabPanel.selectTab(i);
				break;
			}
		}
	}

	public static void loggedIn(boolean loggedIn, String username) {
		LOGGED_IN = loggedIn;
		startButton.setEnabled(LOGGED_IN);
		if (LOGGED_IN) {
			USERNAME = username;
			login.setText(USERNAME);
			setNowName(username);
			loginBox.hide();
			setSearchConfiguration(Configuration.VERTICAL);
		}

	}

	public static native void setNowName(String name)/*-{
		$wnd.now.name = name;
	}-*/;

	public static void created(boolean created, String username) {
		loginBox.show();
		createBox.hide();
		signoutBox.hide();
		loginBox.userBox.setValue(username);
	}

	public static native void submitAnswer(String username, String pKey,
			String answer, boolean correct, int score, String stamp)/*-{
		$wnd.now.submitAnswer(username, pKey, answer, correct, score, stamp);
	}-*/;

	public final static native void exportStaticMethods()/*-{
															$wnd.changetab =
															$entry(@com.sharad.quizbowl.ui.client.HomeWidget::changeTab(Ljava/lang/String;));
															$wnd.onhashchange = function() {
															$wnd.changetab($wnd.location.hash);
															}
															$wnd.now.loggedIn = $entry(@com.sharad.quizbowl.ui.client.HomeWidget::loggedIn(ZLjava/lang/String;));
															$wnd.now.created = $entry(@com.sharad.quizbowl.ui.client.HomeWidget::created(ZLjava/lang/String;));
															
															}-*/;

	public final native void login(String name, String pwd)/*-{
		$wnd.now.login(name, $wnd.Sha1.hash(pwd));
	}-*/;

	public final native void createUser(String name, String pwd)/*-{
		$wnd.now.createAccount(name, $wnd.Sha1.hash(pwd));
	}-*/;

	public final native String getHash()/*-{
		return $wnd.location.hash;
	}-*/;

	public final native void setHash(String hash)/*-{
		$wnd.location.hash = hash;
	}-*/;

}