/**
 * Funambol is a mobile platform developed by Funambol, Inc.
 * Copyright (C) 2009 Funambol, Inc.
 *
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Affero General Public License version 3 as published by
 * the Free Software Foundation with the addition of the following permission
 * added to Section 15 as permitted in Section 7(a): FOR ANY PART OF THE COVERED
 * WORK IN WHICH THE COPYRIGHT IS OWNED BY FUNAMBOL, FUNAMBOL DISCLAIMS THE
 * WARRANTY OF NON INFRINGEMENT  OF THIRD PARTY RIGHTS.
 *
 * This program 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 General Public License for more
 * details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program; if not, see http://www.gnu.org/licenses or write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA 02110-1301 USA.
 *
 * You can contact Funambol, Inc. headquarters at 643 Bair Island Road, Suite
 * 305, Redwood City, CA 94063, USA, or at email address info@funambol.com.
 *
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU Affero General Public License version 3.
 *
 * In accordance with Section 7(b) of the GNU Affero General Public License
 * version 3, these Appropriate Legal Notices must retain the display of the
 * "Powered by Funambol" logo. If the display of the logo is not reasonably
 * feasible for technical reasons, the Appropriate Legal Notices must display
 * the words "Powered by Funambol".
 */
package com.funambol.client.ui;

import com.funambol.client.configuration.Configuration;
import com.funambol.client.controller.Controller;

/**
 * This class is a navigator with all the logics for
 *
 * TODO
 * -DisplayManager screens could become an enum, instead of a list of integer
 * 
 * 
 */
public class AppFlowNavigator {
    
    private final Configuration configuration;
    

    public AppFlowNavigator(Configuration configuration) {
        this.configuration = configuration;
    }

    public int getNextScreenInFlow(int currentScreen) {
        int nextScreen;
        
        switch (currentScreen) {
        case Controller.SPLASH_SCREEN_ID:
            //must decide if a login screen is needed
            nextScreen = checkCredentialAndGetNextScreen();
            break;

        default:
            nextScreen = Controller.UNDEFINED_SCREEN_ID;
            break;
        }
        return nextScreen;
    }

    /**
     * Checks is credentials was required and, in case, 
     * @return
     */
    private int checkCredentialAndGetNextScreen() {
        if (configuration.getCredentialsCheckPending()) {
            return chooseBetweenSignupAndLogin();
        } else {
            return Controller.HOME_SCREEN_ID;
        }
    }
    
    
    protected int chooseBetweenSignupAndLogin() {
        return Controller.SIGNUP_SCREEN_ID;
    }
}