/*
 * Copyright (c) 2004-2011 Marco Maccaferri and others.
 * 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:
 *     Marco Maccaferri - initial API and implementation
 */

package org.eclipsetrader.ui.internal.trading;

import java.util.Iterator;

import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.handlers.HandlerUtil;
import org.eclipsetrader.core.instruments.ISecurity;
import org.eclipsetrader.core.trading.IAlertService;
import org.eclipsetrader.ui.internal.UIActivator;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceReference;

public class ResetTriggeredAlerts extends AbstractHandler {

    public ResetTriggeredAlerts() {
    }

    /* (non-Javadoc)
     * @see org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.ExecutionEvent)
     */
    @Override
    public Object execute(ExecutionEvent event) throws ExecutionException {
        IStructuredSelection selection = (IStructuredSelection) HandlerUtil.getCurrentSelection(event);
        if (selection == null || selection.isEmpty()) {
            return null;
        }
        BundleContext context = UIActivator.getDefault().getBundle().getBundleContext();

        ServiceReference serviceReference = context.getServiceReference(IAlertService.class.getName());
        if (serviceReference != null) {
            IAlertService service = (IAlertService) context.getService(serviceReference);
            for (Iterator<?> iter = selection.iterator(); iter.hasNext();) {
                Object target = iter.next();
                if (target instanceof IAdaptable) {
                    target = ((IAdaptable) target).getAdapter(ISecurity.class);
                }
                if (target instanceof ISecurity) {
                    service.resetTriggers((ISecurity) target);
                }
            }
            context.ungetService(serviceReference);
        }

        return null;
    }
}