/*******************************************************************************
 * Copyright (c) 2000, 2003 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the Common Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/cpl-v10.html
 * 
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.welcome.internal;

import java.lang.reflect.InvocationTargetException;
import java.util.*;

import org.eclipse.core.resources.*;
import org.eclipse.core.runtime.*;
import org.eclipse.jface.dialogs.*;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.*;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.eclipse.welcome.internal.webbrowser.*;

/**
 * The main plugin class to be used in the desktop.
 */
public class WelcomePortal extends AbstractUIPlugin {
	public static final String PLUGIN_ID = "org.eclipse.update.ui.win32";
	public static final String ID_BROWSER = PLUGIN_ID + "WebBrowser";
	
	//The shared instance.
	private static WelcomePortal plugin;
	//Resource bundle.
	private ResourceBundle resourceBundle;

	/* (non-Javadoc)
	 * @see org.eclipse.ui.IStartup#earlyStartup()
	 */
	public static void showURL(String name, String url) {
		try {
			WelcomePortal.getActivePage().openEditor(
				new WebBrowserEditorInput(name, url),
				"org.eclipse.welcome.webbrowser");
		} catch (PartInitException e) {
			WelcomePortal.logException(e);
		}
	}

	/**
	 * The constructor.
	 */
	public WelcomePortal(IPluginDescriptor descriptor) {
		super(descriptor);
		plugin = this;
		try {
			resourceBundle =
				ResourceBundle.getBundle(
					"org.eclipse.welcome.internal.WelcomePortalResources");
		} catch (MissingResourceException x) {
			resourceBundle = null;
		}
	}

	/**
	 * Returns the shared instance.
	 */
	public static WelcomePortal getDefault() {
		return plugin;
	}

	public static IWorkbenchPage getActivePage() {
		return getDefault().internalGetActivePage();
	}

	private IWorkbenchPage internalGetActivePage() {
		IWorkbenchWindow window = getWorkbench().getActiveWorkbenchWindow();
		if (window != null)
			return window.getActivePage();
		return null;
	}

	public static Shell getActiveWorkbenchShell() {
		IWorkbenchWindow window = getActiveWorkbenchWindow();
		return window != null ? window.getShell() : null;
	}

	public static IWorkbenchWindow getActiveWorkbenchWindow() {
		return getDefault().getWorkbench().getActiveWorkbenchWindow();
	}

	public static String getPluginId() {
		return getDefault().getDescriptor().getUniqueIdentifier();
	}

	/**
	 * Returns the workspace instance.
	 */
	public static IWorkspace getWorkspace() {
		return ResourcesPlugin.getWorkspace();
	}

	/**
	 * Returns the string from the plugin's resource bundle,
	 * or 'key' if not found.
	 */
	public static String getString(String key) {
		ResourceBundle bundle = WelcomePortal.getDefault().getResourceBundle();
		try {
			return bundle.getString(key);
		} catch (MissingResourceException e) {
			return key;
		}
	}

	public static String getFormattedMessage(String key, String[] args) {
		String text = getString(key);
		return java.text.MessageFormat.format(text, args);
	}

	public static String getFormattedMessage(String key, String arg) {
		String text = getString(key);
		return java.text.MessageFormat.format(text, new String[] { arg });
	}

	/**
	 * Returns the plugin's resource bundle,
	 */
	public ResourceBundle getResourceBundle() {
		return resourceBundle;
	}

	public void startup() throws CoreException {
	}

	public void shutdown() throws CoreException {
	}

	public static void logException(Throwable e) {
		logException(e, true);
	}

	public static void logException(Throwable e, boolean showErrorDialog) {
		if (e instanceof InvocationTargetException) {
			e = ((InvocationTargetException) e).getTargetException();
		}

		IStatus status = null;
		if (e instanceof CoreException) {
			status = ((CoreException) e).getStatus();
		} else {
			String message = e.getMessage();
			if (message == null)
				message = e.toString();
			status =
				new Status(
					IStatus.ERROR,
					getPluginId(),
					IStatus.OK,
					message,
					e);
		}
		log(status, showErrorDialog);
	}

	public static void log(IStatus status, boolean showErrorDialog) {
		if (status.getSeverity() != IStatus.INFO) {
			if (showErrorDialog)
				ErrorDialog.openError(
					getActiveWorkbenchShell(),
					null,
					null,
					status);
			//ResourcesPlugin.getPlugin().getLog().log(status);
			Platform.getPlugin("org.eclipse.core.runtime").getLog().log(status);
		} else {
			MessageDialog.openInformation(
				getActiveWorkbenchShell(),
				null,
				status.getMessage());
		}
	}
}