/*******************************************************************************
 * Copyright (C) 2015, Max Hohenegger <eclipse@hohenegger.eu>
 *
 * 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
 *******************************************************************************/
package org.eclipse.egit.gitflow.ui;

import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.eclipse.ui.statushandlers.StatusManager;
import org.osgi.framework.BundleContext;

/**
 * The activator class controls the plug-in life cycle
 */
public class Activator extends AbstractUIPlugin {
	// The shared instance
	private static Activator plugin;

	@Override
	public void start(BundleContext context) throws Exception {
		super.start(context);
		plugin = this;
	}

	@Override
	public void stop(BundleContext context) throws Exception {
		plugin = null;
		super.stop(context);
	}

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

	/**
	 * @param message
	 * @param throwable
	 * @return Status constructed from parameters.
	 */
	public static IStatus error(String message, Throwable throwable) {
		return new Status(IStatus.ERROR, getPluginId(), 0, message, throwable);
	}

	/**
	 * @param message
	 * @return Status constructed from parameters.
	 */
	public static IStatus error(String message) {
		return new Status(IStatus.ERROR, getPluginId(), message);
	}

	/**
	 * @param message
	 * @return Warning status for given message.
	 */
	public static IStatus warning(String message) {
		return new Status(IStatus.WARNING, getPluginId(), message);
	}

	/**
	 * @return the id of the egit ui plugin
	 */
	public static String getPluginId() {
		return getDefault().getBundle().getSymbolicName();
	}

	/**
	 * Handle an error. The error is logged. If <code>show</code> is
	 * <code>true</code> the error is shown to the user.
	 *
	 * @param message a localized message
	 * @param throwable
	 * @param show
	 */
	public static void handleError(String message, Throwable throwable,
			boolean show) {
		handleIssue(IStatus.ERROR, message, throwable, show);
	}

	/**
	 * Handle an issue. The issue is logged. If <code>show</code> is
	 * <code>true</code> the issue is shown to the user.
	 *
	 * @param severity
	 *            status severity, use constants defined in {@link IStatus}
	 * @param message
	 *            a localized message
	 * @param throwable
	 * @param show
	 */
	public static void handleIssue(int severity, String message, Throwable throwable,
			boolean show) {
		IStatus status = new Status(severity, getPluginId(), message,
				throwable);
		int style = StatusManager.LOG;
		if (show) {
			style |= StatusManager.SHOW;
		}
		StatusManager.getManager().handle(status, style);
	}

	/**
	 * @param message
	 * @param e
	 */
	public static void logError(String message, Throwable e) {
		handleError(message, e, false);
	}
}