/**
 *                                                                            
 * Copyright (c) 2011, 2016 - Loetz GmbH&Co.KG (69115 Heidelberg, Germany)
 *                                                                            
 * All rights reserved. This program and the accompanying materials           
 * are made available under the terms of the Eclipse Public License 2.0        
 * which accompanies this distribution, and is available at                  
 * https://www.eclipse.org/legal/epl-2.0/                                 
 *                                 
 * SPDX-License-Identifier: EPL-2.0                                 
 *                                                                            
 * Contributors:   
 * Christophe Loetz (Loetz GmbH&Co.KG) - initial implementation 
 */
package org.eclipse.osbp.osgi.hybrid.api;

import java.util.HashSet;
import java.util.Set;

import org.eclipse.e4.ui.model.application.ui.MElementContainer;
import org.eclipse.e4.ui.model.application.ui.MUIElement;
import org.eclipse.e4.ui.model.application.ui.advanced.MPerspectiveStack;
import org.eclipse.osbp.ui.api.useraccess.IUserAccessService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class HybridServiceBinder {

	private static final Set<IPresentationRenderer> sPresentationRenderers = new HashSet<>();
	private static final Logger log = LoggerFactory.getLogger("servicebinder");
	private static IUserAccessService userAccessService;


	public static void processContents(MPerspectiveStack perspectiveStack, MElementContainer<MUIElement> perspectiveStackElement) {
		for	(IPresentationRenderer presentationRenderer : sPresentationRenderers) {
			presentationRenderer.processContents(perspectiveStack, perspectiveStackElement);
			break;
		}
	}

	/**
	 * @param presentationRenderer declarative service loaded
	 */
	public static void bindPresentationRenderer(IPresentationRenderer presentationRenderer) {
		log.debug(HybridServiceBinder.class.getCanonicalName()+": "+presentationRenderer.getClass().getCanonicalName()+" bound");
		sPresentationRenderers.add(presentationRenderer);
	}

	/**
	 * @param presentationRenderer declarative service unloaded
	 */
	public static void unbindPresentationRenderer(IPresentationRenderer presentationRenderer) {
		log.debug(HybridServiceBinder.class.getCanonicalName()+": "+presentationRenderer.getClass().getCanonicalName()+" unbound");
		sPresentationRenderers.remove(presentationRenderer);
	}

	public static IUserAccessService getUserAccessService() {
		return userAccessService;
	}
	
	public synchronized void bindUserAccessService(final IUserAccessService userAccessService) {
		this.userAccessService = userAccessService;
		log.debug("HybridAuthenticationService bound");
	}

	public synchronized void unbindUserAccessService(final IUserAccessService userAccessService) {
		this.userAccessService = null;
		log.debug("HybridAuthenticationService unbound");
	}

}