/*
 * Copyright (c) 2016 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.vpnservice.elan.cli;

import org.apache.karaf.shell.commands.Argument;
import org.apache.karaf.shell.commands.Command;
import org.apache.karaf.shell.console.OsgiCommandSupport;
import org.opendaylight.elanmanager.api.IElanService;
import org.opendaylight.vpnservice.elan.utils.ElanCLIUtils;
import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.elan.rev150602.forwarding.entries.MacEntry;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.text.SimpleDateFormat;
import java.util.Collection;
import java.util.Date;

@Command(scope = "elanmactable", name = "show", description = "get Elan Mac table")
public class ElanMacTableGet extends OsgiCommandSupport {

    private static final Logger logger = LoggerFactory.getLogger(ElanMacTableGet.class);

    @Argument(index = 0, name = "elanName", description = "ELAN-NAME", required = true, multiValued = false)
    private String elanName;
    private IElanService elanProvider;

    public void setElanProvider(IElanService elanServiceProvider) {
        this.elanProvider = elanServiceProvider;
    }

    @Override
    protected Object doExecute() {
        try {
            logger.debug("Executing updating ElanInterface command" + "\t");
            Collection<MacEntry> macTables = elanProvider.getElanMacTable(elanName);
            if(!macTables.isEmpty()) {
                SimpleDateFormat formatter = new SimpleDateFormat("dd-MM-yy:HH:mm:SS");
                System.out.println(getMacTableHeaderOutput());
                System.out.println(elanName);
                for(MacEntry mac : macTables) {
                    boolean isStatic = mac.isIsStaticAddress();
                    System.out.println(String.format(ElanCLIUtils.MAC_TABLE_CLI_FORMAT, "", mac.getInterface(), mac.getMacAddress().getValue(), ""));
                    System.out.println(String.format(ElanCLIUtils.MAC_TABLE_CLI_FORMAT, "", isStatic, "", isStatic? "-" : formatter.format(new Date(mac.getControllerLearnedForwardingEntryTimestamp().longValue()))));
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    private Object getMacTableHeaderOutput() {
        StringBuilder headerBuilder = new StringBuilder();
        headerBuilder.append(String.format(ElanCLIUtils.MAC_TABLE_CLI_FORMAT, "Elan Instance", "Interface Name", "MacAddress", ""));
        headerBuilder.append('\n');
        headerBuilder.append(String.format(ElanCLIUtils.MAC_TABLE_CLI_FORMAT, "", "Is Static?", "" , "TimeStamp"));
        headerBuilder.append('\n');
        headerBuilder.append(ElanCLIUtils.HEADER_UNDERLINE);
        return headerBuilder.toString();
    }
}