/*
 * Copyright (c) 2017 Ericsson India Global Services Pvt Ltd. 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
 */

package org.opendaylight.openflowplugin.applications.reconciliation.cli;

import com.google.common.base.Preconditions;
import java.util.List;
import org.apache.karaf.shell.commands.Command;
import org.apache.karaf.shell.console.OsgiCommandSupport;
import org.opendaylight.openflowplugin.applications.reconciliation.ReconciliationManager;
import org.opendaylight.openflowplugin.applications.reconciliation.ReconciliationNotificationListener;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

@Command(scope = "reconciliation", name = "getRegisteredServices", description = "displaying services registered to "
        + "Reconciliation Framework")
/*
 * CLI to display the service priority, service name and service status TODO
 * service status
 */
public class GetRegisteredServices extends OsgiCommandSupport {
    private static final Logger LOG = LoggerFactory.getLogger(GetRegisteredServices.class);
    private static final String CLI_FORMAT = "%d %-20s ";

    private ReconciliationManager reconciliationManager;

    public void setReconciliationManager(ReconciliationManager reconciliationManager) {
        this.reconciliationManager = Preconditions.checkNotNull(reconciliationManager,
                "ReconciliationManager can not be null!");
    }

    @Override
    protected Object doExecute() throws Exception {
        LOG.debug("Executing getRegisteredServices to Reconciliation Framework command");
        if (reconciliationManager.getRegisteredServices().isEmpty()) {
            session.getConsole().println("No Services have registered to Reconciliation Framework");
        } else {
            for (List<ReconciliationNotificationListener> services : reconciliationManager.getRegisteredServices()
                    .values()) {
                for (ReconciliationNotificationListener service : services) {
                    session.getConsole().println(String.format(CLI_FORMAT, service.getPriority(), service.getName()));
                }
            }
        }

        return null;
    }
}