/*
 * TeleStax, Open Source Cloud Communications  Copyright 2012.
 * and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.mobicents.protocols.ss7.map;

import org.mobicents.protocols.ss7.map.api.MAPProvider;
import org.mobicents.protocols.ss7.map.api.MAPStack;
import org.mobicents.protocols.ss7.sccp.SccpProvider;
import org.mobicents.protocols.ss7.tcap.TCAPStackImpl;
import org.mobicents.protocols.ss7.tcap.api.TCAPProvider;
import org.mobicents.protocols.ss7.tcap.api.TCAPStack;

/**
 *
 * @author amit bhayani
 *
 */
public class MAPStackImpl implements MAPStack {

    protected TCAPStack tcapStack = null;

    protected MAPProviderImpl mapProvider = null;

    private State state = State.IDLE;

    private final String name;

    public MAPStackImpl(String name, SccpProvider sccpPprovider, int ssn) {
        this.name = name;
        this.tcapStack = new TCAPStackImpl(name, sccpPprovider, ssn);
        TCAPProvider tcapProvider = tcapStack.getProvider();
        mapProvider = new MAPProviderImpl(name, tcapProvider);

        this.state = State.CONFIGURED;
    }

    public MAPStackImpl(String name, TCAPProvider tcapProvider) {
        this.name = name;
        mapProvider = new MAPProviderImpl(name, tcapProvider);
        this.state = State.CONFIGURED;
    }

    @Override
    public String getName() {
        return name;
    }

    public MAPProvider getMAPProvider() {
        return this.mapProvider;
    }

    public void start() throws Exception {
        if (state != State.CONFIGURED) {
            throw new IllegalStateException("Stack has not been configured or is already running!");
        }
        if (tcapStack != null) {
            // this is null in junits!
            this.tcapStack.start();
        }
        this.mapProvider.start();

        this.state = State.RUNNING;

    }

    public void stop() {
        if (state != State.RUNNING) {
            throw new IllegalStateException("Stack is not running!");
        }
        this.mapProvider.stop();
        if (tcapStack != null) {
            this.tcapStack.stop();
        }

        this.state = State.CONFIGURED;
    }

    // // ///////////////
    // // CONF METHOD //
    // // ///////////////
    // /**
    // * @throws ConfigurationException
    // *
    // */
    // public void configure(Properties props) throws ConfigurationException {
    // if (state != State.IDLE) {
    // throw new
    // IllegalStateException("Stack already been configured or is already running!");
    // }
    // tcapStack.configure(props);
    // TCAPProvider tcapProvider = tcapStack.getProvider();
    // mapProvider = new MAPProviderImpl(tcapProvider);
    // this.state = State.CONFIGURED;
    // }

    private enum State {
        IDLE, CONFIGURED, RUNNING;
    }

    public TCAPStack getTCAPStack() {
        return this.tcapStack;
    }

//    public void onCongestionStart(String congName) {
//        this.mapProvider.onCongestionStart(congName);
//    }
//
//    public void onCongestionFinish(String congName) {
//        this.mapProvider.onCongestionFinish(congName);
//    }
}