/**
 * Abiquo community edition
 * cloud management application for hybrid clouds
 * Copyright (C) 2008-2010 - Abiquo Holdings S.L.
 *
 * This application 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 under
 * version 3 of the License
 *
 * 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 v.3 for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

package com.abiquo.abiserver.commands.impl;

import java.util.ArrayList;

import com.abiquo.abiserver.business.AuthService;
import com.abiquo.abiserver.commands.BasicCommand;
import com.abiquo.abiserver.commands.LoginCommand;
import com.abiquo.abiserver.persistence.hibernate.HibernateDAOFactory;
import com.abiquo.abiserver.pojo.authentication.Login;
import com.abiquo.abiserver.pojo.authentication.LoginResult;
import com.abiquo.abiserver.pojo.authentication.UserSession;
import com.abiquo.abiserver.pojo.result.BasicResult;
import com.abiquo.abiserver.pojo.result.DataResult;
import com.abiquo.abiserver.pojo.user.Privilege;
import com.abiquo.tracer.ComponentType;
import com.abiquo.tracer.EventType;
import com.abiquo.tracer.SeverityType;

/**
 * This command collects all actions related to Login actions
 * 
 * @author Oliver
 */

public class LoginCommandImpl extends BasicCommand implements LoginCommand
{

    /*
     * (non-Javadoc)
     * @see
     * com.abiquo.abiserver.commands.impl.LoginCommand#login(com.abiquo.abiserver.pojo.authentication
     * .Login)
     */

    @Override
    public DataResult<LoginResult> login(final Login loginData)
    {
        // Check database connectivity
        if (!HibernateDAOFactory.instance().pingDB())
        {
            DataResult<LoginResult> result = new DataResult<LoginResult>();
            result.setSuccess(false);
            result.setMessage("Could not connect to database. "
                + "Please contact the cloud administrator.");
            return result;
        }

        DataResult<LoginResult> resultResponse = AuthService.getInstance().doLogin(loginData);

        if (resultResponse.getSuccess())
        {

            ArrayList<Privilege> privileges = new ArrayList<Privilege>();

            try
            {

                com.abiquo.abiserver.pojo.user.User u = resultResponse.getData().getUser();

                for (Privilege p : u.getRole().getPrivileges())
                {
                    privileges.add(p.toPojoHB().toPojo());
                }

                // UsersResourceStub proxy =
                // APIStubFactory.getInstance(resultResponse.getData().getSession(),
                // new UsersResourceStubImpl(), UsersResourceStub.class);
                //
                // UserListOptions userListOptions = new UserListOptions();
                // userListOptions.setFilter(resultResponse.getData().getUser().getName());
                // userListOptions.setOrderBy(User.NICK_PROPERTY);
                // DataResult<UserListResult> user = proxy.getUsers(userListOptions);
                //
                // if (user.getSuccess() && user.getData().getTotalUsers() == 1)
                // {
                // // Getting the list of user privileges
                // for (com.abiquo.abiserver.pojo.user.User u : user.getData().getUsersList())
                // {
                // for (Privilege p : u.getRole().getPrivileges())
                // {
                // privileges.add(p.toPojoHB().toPojo());
                // }
                //
                // }
                // }

                // log the event
                traceLog(SeverityType.INFO, ComponentType.USER, EventType.USER_LOGIN,
                    resultResponse.getData().getSession(), null, null, null, null, null, null,
                    resultResponse.getData().getSession().getUser(), resultResponse.getData()
                        .getSession().getEnterpriseName());

            }
            catch (Exception e)
            {

                errorManager.reportError(resourceManager, resultResponse, "login.resourceCreation",
                    e);

                traceLog(SeverityType.CRITICAL, ComponentType.USER, EventType.USER_LOGIN,
                    resultResponse.getData().getSession(), null, null, e.getMessage(), null, null,
                    null, resultResponse.getData().getUser().getUser(), resultResponse.getData()
                        .getSession().getEnterpriseName());

                return resultResponse;
            }

            // Returning result
            resultResponse.getData().setPrivileges(privileges);
        }

        return resultResponse;
    }

    /*
     * (non-Javadoc)
     * @see
     * com.abiquo.abiserver.commands.impl.LoginCommand#logout(com.abiquo.abiserver.pojo.authentication
     * .UserSession)
     */
    @Override
    public BasicResult logout(final UserSession session)
    {
        traceLog(SeverityType.INFO, ComponentType.USER, EventType.USER_LOGOUT, session, null, null,
            null, null, null, null, null, null);

        return AuthService.getInstance().doLogout(session);
    }

}