/*
 * Copyright (C) 2005-2010 Alfresco Software Limited.
 *
 * This file is part of Alfresco
 *
 * Alfresco 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 3 of the License, or
 * (at your option) any later version.
 *
 * Alfresco 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 Alfresco. If not, see <http://www.gnu.org/licenses/>.
 */
package org.alfresco.repo.imap;

import org.springframework.extensions.surf.util.AbstractLifecycleBean;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.context.ApplicationEvent;

import com.icegreen.greenmail.Managers;
import com.icegreen.greenmail.imap.ImapHostManager;
import com.icegreen.greenmail.imap.ImapServer;
import com.icegreen.greenmail.user.UserManager;
import com.icegreen.greenmail.util.ServerSetup;

/**
 * @author Mike Shavnev
 */
public class AlfrescoImapServer extends AbstractLifecycleBean
{

    private static Log logger = LogFactory.getLog(AlfrescoImapServer.class);

    private ImapServer serverImpl;

    private int port = 143;
    private String host = "0.0.0.0";
    private ImapHostManager imapHostManager;

    private UserManager imapUserManager;
    
    private boolean imapServerEnabled;
    
    
    public void setImapServerEnabled(boolean imapServerEnabled)
    {
        this.imapServerEnabled = imapServerEnabled;
    }
    
    public boolean isImapServerEnabled()
    {
        return imapServerEnabled;
    }

    public void setPort(int port)
    {
        this.port = port;
    }

    public void setHost(String host)
    {
        this.host = host;
    }
    
    public int getPort()
    {
        return port;
    }

    public String getHost()
    {
        return host;
    }

    public void setImapHostManager(ImapHostManager imapHostManager)
    {
        this.imapHostManager = imapHostManager;
    }

    public void setImapUserManager(UserManager imapUserManager)
    {
        this.imapUserManager = imapUserManager;
    }
    
    protected void onBootstrap(ApplicationEvent event)
    {
        if (imapServerEnabled)
        {
            startup();
        }
        else
        {
            if (logger.isDebugEnabled())
            {
                logger.debug("IMAP service is disabled.");
            }
        }
    }

    protected void onShutdown(ApplicationEvent event)
    {
        shutdown();

    }
    
    public void startup()
    {
        if(serverImpl == null)
        {
            Managers imapManagers = new Managers()
            {
                public ImapHostManager getImapHostManager()
                {
                    return imapHostManager;
                }
    
                public UserManager getUserManager()
                {
                    return imapUserManager;
                }
            };
            
            serverImpl = new ImapServer(new ServerSetup(port, host, ServerSetup.PROTOCOL_IMAP), imapManagers);
            serverImpl.startService(null);
            if (logger.isInfoEnabled())
            {
                logger.info("IMAP service started on host:port " + host + ":" + this.port + ".");
            }
        }
        else
        {
            if (logger.isDebugEnabled())
            {
                logger.debug("IMAP server already running.");
            }
        }
    }
    
    public void shutdown()
    {
        if (serverImpl != null)
        {
            if (logger.isDebugEnabled())
            {
                logger.debug("IMAP service stopping.");
            }
            serverImpl.stopService(null);
        }
    }

}