/*******************************************************************************
 * Copyright (c) 2015 Red Hat.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Red Hat - Initial Contribution
 *******************************************************************************/
package org.eclipse.cdt.docker.launcher;

import org.eclipse.cdt.internal.docker.launcher.ConnectionListener;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.osgi.framework.BundleContext;

/**
 * The activator class controls the plug-in life cycle
 */
public class DockerLaunchUIPlugin extends AbstractUIPlugin {

	// The plug-in ID
	public static final String PLUGIN_ID = "org.eclipse.cdt.docker.launcher"; //$NON-NLS-1$

	// The shared instance
	private static DockerLaunchUIPlugin plugin;

	/**
	 * The constructor
	 */
	public DockerLaunchUIPlugin() {
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.eclipse.ui.plugin.AbstractUIPlugin#start(org.osgi.framework.BundleContext
	 * )
	 */
	public void start(BundleContext context) throws Exception {
		super.start(context);
		plugin = this;
		ConnectionListener.getInstance().init();
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.eclipse.ui.plugin.AbstractUIPlugin#stop(org.osgi.framework.BundleContext
	 * )
	 */
	public void stop(BundleContext context) throws Exception {
		plugin = null;
		super.stop(context);
	}

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

	public static Shell getActiveWorkbenchShell() {
		IWorkbenchWindow window = getDefault().getWorkbench()
				.getActiveWorkbenchWindow();
		if (window != null) {
			return window.getShell();
		}
		return null;
	}

	public static Shell getShell() {
		if (getActiveWorkbenchShell() != null) {
			return getActiveWorkbenchShell();
		}
		IWorkbenchWindow[] windows = getDefault().getWorkbench()
				.getWorkbenchWindows();
		return windows[0].getShell();
	}

	/**
	 * Convenience method which returns the unique identifier of this plugin.
	 * 
	 * @return The identifier.
	 */
	public static String getUniqueIdentifier() {
		if (getDefault() == null) {
			// If the default instance is not yet initialized,
			// return a static identifier. This identifier must
			// match the plugin id defined in plugin.xml
			return PLUGIN_ID;
		}
		return getDefault().getBundle().getSymbolicName();
	}

	/**
	 * Logs the specified status with this plug-in's log.
	 *
	 * @param status
	 *            status to log
	 * @since 1.1
	 */
	public static void log(IStatus status) {
		getDefault().getLog().log(status);
	}

	/**
	 * Logs an internal error with the specified message.
	 *
	 * @param message
	 *            the error message to log
	 * @since 1.1
	 */
	public static void logErrorMessage(String message) {
		log(new Status(IStatus.ERROR, getUniqueIdentifier(), IStatus.ERROR,
				message, null));
	}

	/**
	 * Logs an internal error with the specified throwable
	 *
	 * @param e
	 *            the exception to be logged
	 */
	public static void log(Throwable e) {
		log(new Status(IStatus.ERROR, getUniqueIdentifier(), IStatus.ERROR,
				e.getMessage(), e));
	}

	public static void log(int status, String msg, Throwable e) {
		plugin.getLog().log(new Status(status, PLUGIN_ID, IStatus.OK, msg, e));
	}

	public static void log(int status, String msg) {
		log(status, msg, null);
	}

	/**
	 * Returns an image descriptor for the image file at the given plug-in
	 * relative path
	 *
	 * @param path
	 *            the path
	 * @return the image descriptor
	 */
	public static ImageDescriptor getImageDescriptor(String path) {
		return imageDescriptorFromPlugin(PLUGIN_ID, path);
	}
}