package com.itmill.dev.addressbooktutorial;

import com.itmill.dev.addressbooktutorial.ui.HelpWindow;
import com.itmill.dev.addressbooktutorial.ui.ListView;
import com.itmill.dev.addressbooktutorial.ui.NavigationTree;
import com.itmill.dev.addressbooktutorial.ui.PersonForm;
import com.itmill.dev.addressbooktutorial.ui.PersonList;
import com.itmill.dev.addressbooktutorial.ui.SharingOptions;
import com.itmill.toolkit.Application;
import com.itmill.toolkit.ui.Button;
import com.itmill.toolkit.ui.Component;
import com.itmill.toolkit.ui.HorizontalLayout;
import com.itmill.toolkit.ui.SplitPanel;
import com.itmill.toolkit.ui.VerticalLayout;
import com.itmill.toolkit.ui.Window;

public class AddressBookApplication extends Application {

	private NavigationTree tree = new NavigationTree();

	private Button newContact = new Button("Add contact");
	private Button search = new Button("Search");
	private Button share = new Button("Share");
	private Button help = new Button("Help");
	private SplitPanel horizontalSplit = new SplitPanel(
			SplitPanel.ORIENTATION_HORIZONTAL);

	// Lazyly created ui references
	private ListView listView = null;
	private PersonList personList = null;
	private PersonForm personForm = null;
	private HelpWindow helpWindow = null;
	private SharingOptions sharingOptions = null;

	@Override
	public void init() {
		buildMainLayout();
		setMainComponent(getListView());

		// uncomment following lines to test other views and windows
		// getMainWindow().addWindow(getHelpWindow());
		// getMainWindow().addWindow(getSharingOptions());
	}

	private void buildMainLayout() {
		setMainWindow(new Window("Address Book Demo application"));

		VerticalLayout layout = new VerticalLayout();
		layout.setSizeFull();

		layout.addComponent(createToolbar());
		layout.addComponent(horizontalSplit);
		layout.setExpandRatio(horizontalSplit, 1);

		horizontalSplit.setSplitPosition(200, SplitPanel.UNITS_PIXELS);
		horizontalSplit.setFirstComponent(tree);

		getMainWindow().setLayout(layout);
	}

	private HorizontalLayout createToolbar() {
		HorizontalLayout lo = new HorizontalLayout();
		lo.addComponent(newContact);
		lo.addComponent(search);
		lo.addComponent(share);
		lo.addComponent(help);

		return lo;
	}

	private void setMainComponent(Component c) {
		horizontalSplit.setSecondComponent(c);
	}

	/*
	 * View getters exist so we can lazily generate the views, resulting in
	 * faster application startup time.
	 */
	private ListView getListView() {
		if (listView == null) {
			personList = new PersonList();
			personForm = new PersonForm();
			listView = new ListView(personList, personForm);
		}
		return listView;
	}

	private HelpWindow getHelpWindow() {
		if (helpWindow == null) {
			helpWindow = new HelpWindow();
		}
		return helpWindow;
	}

	private SharingOptions getSharingOptions() {
		if (sharingOptions == null) {
			sharingOptions = new SharingOptions();
		}
		return sharingOptions;
	}
}