/*******************************************************************************

 * Copyright (c) 2010 BSI Business Systems Integration AG.
 * 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:
 *     BSI Business Systems Integration AG - initial API and implementation
 ******************************************************************************/
package org.eclipse.scout.sdk.debug.internal;

import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.scout.sdk.debug.view.JdtEventLoggerView;
import org.eclipse.scout.sdk.util.log.SdkLogManager;
import org.eclipse.swt.graphics.Image;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.osgi.framework.BundleContext;

/**
 * <h3>{@link Activator}</h3>
 * 
 * @author Andreas Hoegger
 * @since 1.0.8 11.02.2011
 */
public class Activator extends AbstractUIPlugin {

  // The plug-in ID
  public static final String PLUGIN_ID = "org.eclipse.scout.sdk.debug";

  public static final String VIEW_JDT_EVENT_LOGGER = JdtEventLoggerView.VIEW_ID;

  private static final String IMAGE_PATH = "resources/icons/";

  // The shared instance
  private static Activator plugin;
  private static SdkLogManager logManager;

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

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

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

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

  public static void logInfo(Throwable t) {
    logManager.logInfo(t);
  }

  public static void logInfo(String message) {
    logManager.logInfo(message);
  }

  public static void logInfo(String message, Throwable t) {
    logManager.logInfo(message, t);
  }

  public static void logWarning(String message) {
    logManager.logWarning(message);
  }

  public static void logWarning(Throwable t) {
    logManager.logWarning(t);
  }

  public static void logWarning(String message, Throwable t) {
    logManager.logWarning(message, t);
  }

  public static void logError(Throwable t) {
    logManager.logError(t);
  }

  public static void logError(String message) {
    logManager.logError(message);
  }

  public static void logError(String message, Throwable t) {
    logManager.logError(message, t);
  }

  /**
   * Returns the image for the given composite descriptor.
   */
//  public static Image getImage(CompositeImageDescriptor imageDescriptor) {
//    return getDefault().getImageImpl(imageDescriptor);
//  }
//
//  private Image getImageImpl(CompositeImageDescriptor imageDescriptor) {
//    return getImageRegistry().get(imageDescriptor);
//  }

  /**
   * To get a cached image with one of the extensions [gif | png | jpg]
   * 
   * @param name
   *          the name without extension located under resources/icons e.g. "person"
   * @return the cached image
   */
  public static Image getImage(String name) {
    return getDefault().getImageImpl(name);
  }

  private Image getImageImpl(String name) {
    Image image = getImageRegistry().get(name);
    if (image == null) {
      loadImage(name);
      image = getImageRegistry().get(name);
    }
    return image;
  }

  /**
   * To get a cached image with one of the extensions [gif | png | jpg]
   * 
   * @param name
   *          the name without extension located under resources/icons e.g. "person"
   * @return the cached image
   */
  public static ImageDescriptor getImageDescriptor(String name) {
    return getDefault().getImageDescriptorImpl(name);
  }

  private ImageDescriptor getImageDescriptorImpl(String name) {
    ImageDescriptor imageDesc = getImageRegistry().getDescriptor(name);
    if (imageDesc == null) {
      loadImage(name);
      imageDesc = getImageRegistry().getDescriptor(name);
    }
    return imageDesc;
  }

  private void loadImage(String name) {
    ImageDescriptor desc = null;
    if (name.startsWith(IMAGE_PATH)) {
      desc = AbstractUIPlugin.imageDescriptorFromPlugin(PLUGIN_ID, name);
    }
    if (desc == null) {
      // try already extension
      desc = AbstractUIPlugin.imageDescriptorFromPlugin(PLUGIN_ID, IMAGE_PATH + name);
    }
    // gif
    if (desc == null) {
      desc = AbstractUIPlugin.imageDescriptorFromPlugin(PLUGIN_ID, IMAGE_PATH + name + ".gif");
    }
    // png
    if (desc == null) {
      desc = AbstractUIPlugin.imageDescriptorFromPlugin(PLUGIN_ID, IMAGE_PATH + name + ".png");
    }
    // jpg
    if (desc == null) {
      desc = AbstractUIPlugin.imageDescriptorFromPlugin(PLUGIN_ID, IMAGE_PATH + name + ".jpg");
    }
    if (desc == null) {
      logWarning("could not find image for plugin: '" + PLUGIN_ID + "' under: '" + IMAGE_PATH + name + "'.");
    }
    else {
      getImageRegistry().put(name, desc);
    }
  }
}