/*
 * $Header: /cvsroot/mvnforum/mvnforum/src/com/mvnforum/MVNForumConfig.java,v 1.23 2004/06/29 02:17:34 minhnn Exp $
 * $Author: minhnn $
 * $Revision: 1.23 $
 * $Date: 2004/06/29 02:17:34 $
 *
 * ====================================================================
 *
 * Copyright (C) 2002-2004 by MyVietnam.net
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or any later version.
 *
 * All copyright notices regarding mvnForum MUST remain intact
 * in the scripts and in the outputted HTML.
 * The "powered by" text/logo with a link back to
 * http://www.mvnForum.com and http://www.MyVietnam.net in the
 * footer of the pages MUST remain visible when the pages
 * are viewed on the internet or intranet.
 *
 * 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 General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * Support can be obtained from support forums at:
 * http://www.mvnForum.com/mvnforum/index
 *
 * Correspondence and Marketing Questions can be sent to:
 * info@MyVietnam.net
 *
 * @author: Minh Nguyen  minhnn@MyVietnam.net
 * @author: Mai  Nguyen  mai.nh@MyVietnam.net
 * @author: Igor Manic   imanic@users.sourceforge.net
 */
package com.mvnforum;

import java.io.*;
import java.util.Locale;

import com.mvnforum.db.DAOFactory;
import freemarker.cache.FileTemplateLoader;
import freemarker.template.Configuration;
import net.myvietnam.mvncore.configuration.DOM4JConfiguration;
import net.myvietnam.mvncore.exception.ObjectNotFoundException;
import net.myvietnam.mvncore.info.DatabaseInfo;
import net.myvietnam.mvncore.security.FloodControl;
import net.myvietnam.mvncore.util.*;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;


public final class MVNForumConfig {

    private static Log log = LogFactory.getLog(MVNForumConfig.class);
    private MVNForumConfig() {
    }

    private static final String OPTION_FILE_NAME = "mvnforum.xml";

    private static boolean m_shouldRun = true;
    public static boolean isShouldRun() {
        return m_shouldRun;
    }

    private static String  m_reason = "Normal System";
    public static String getReason() {
        return m_reason;
    }

    /**
     * This method could be use to stop run the forum in some condition.
     * Some use could be a page that immediately stop the forum for security.
     * Other usage is to check to run on some environment such as Servlet 2.3 or later
     *
     * @param shouldRun boolean the new shouldRun
     * @param reason String the reason of the action, this reason will
     *               be shown in the error page
     */
    public static void setShouldRun(boolean shouldRun, String reason) {
        m_shouldRun = shouldRun;
        m_reason = reason;
    }

    private static boolean m_guestUserInDatabase = false;
    public static boolean isGuestUserInDatabase() {
        return m_guestUserInDatabase;
    }

    private static String tempDir = "";
    private static String searchIndexDir = "";
    private static String attachmentDir = "";
    private static String backupDir = "";
    private static String templateDir = "";
    private static void setMVNForumHome(String home) {
        // now check the read/write permission by writing a temp file
        try {
            // always create a dir, if the dir already exitsted, nothing happen
            FileUtil.createDirs(home, true);

            String tempFilename = home + File.separatorChar + "mvnforum_tempfile.tmp";
            File tempFile = new File(tempFilename);
            if (log.isDebugEnabled()) {
                log.debug("Temp file = " + tempFilename);
                log.debug("Absolute filename of temp file = " + tempFile.getAbsolutePath());
            }

            FileOutputStream fos = new FileOutputStream(tempFilename);
            fos.write(tempFilename.getBytes());
            fos.close();

            tempFile.delete();

            // now create the dirs if not exitst
            tempDir = MVNFORUM_HOME + File.separatorChar + "temp";
            FileUtil.createDirs(tempDir, true);

            searchIndexDir = MVNFORUM_HOME + File.separatorChar + "search";
            FileUtil.createDirs(searchIndexDir, true);

            attachmentDir = MVNFORUM_HOME + File.separatorChar + "attachment";
            FileUtil.createDirs(attachmentDir, true);

            backupDir = MVNFORUM_HOME + File.separatorChar + "backup";
            FileUtil.createDirs(backupDir, true);

            // this dir is created as a recommended folder to store the log files
            String logDir = MVNFORUM_HOME + File.separatorChar + "log";
            FileUtil.createDirs(logDir, true);

            // this dir is created as a recommended folder to store the template files
            templateDir = MVNFORUM_HOME + File.separatorChar + "template";
            FileUtil.createDirs(templateDir, true);

            // now check the database
            DatabaseInfo databaseInfo = new DatabaseInfo();
            if (databaseInfo.getErrorMessage() != null) {
                log.fatal("Cannot get database connection. Please correct it first.");
                m_shouldRun = false;
                m_reason = "Check your database configuration. Detail : " + databaseInfo.getErrorMessage();
            }
        } catch (IOException ex) {
            log.fatal("Cannot setup the mvnForumHome folder. Please correct it first.", ex);
            m_shouldRun = false;
            m_reason = "Check your mvnForumHome. Detail : " + ex.getMessage();
        }
    }

    private static Configuration freeMarkerConfiguration;
    public static Configuration getFreeMarkerConfiguration() {
        return freeMarkerConfiguration;
    }

    private static String MVNFORUM_HOME     = "mvnForumHome";
    public static String getMVNForumHome() {
        return MVNFORUM_HOME;
    }
    public static String getTempDir() {
        return tempDir;
    }
    public static String getSearchIndexDir() {
        return searchIndexDir;
    }
    public static String getAttachmentDir() {
        return attachmentDir;
    }

    public static String getTemplateDir() {
        return templateDir;
    }

    public static String getBackupDir() {
        return backupDir;
    }

    private static String WEBMASTER_EMAIL  = "youremail@yourdomain.com";
    public static String getWebMasterEmail() {
        return WEBMASTER_EMAIL;
    }

    private static String LOGO_URL         = "http://www.mvnForum.com";
    public static String getLogoUrl() {
        return LOGO_URL;
    }

    private static String[] SUPPORTED_LOCALE_NAMES = new String[0];
    private static Locale[] SUPPORTED_LOCALES = new Locale[0];
    public static String[] getSupportedLocaleNames() {
        return SUPPORTED_LOCALE_NAMES;
    }
    public static Locale[] getSupportedLocales() {
        return SUPPORTED_LOCALES;
    }

    private static String DEFAULT_LOCALE_NAME = "en";
    private static Locale DEFAULT_LOCALE      = null;
    public static String getDefaultLocaleName() {
        return DEFAULT_LOCALE_NAME;
    }
    public static Locale getDefaultLocale() {
        return DEFAULT_LOCALE;
    }

    /**
     * Default username of a virtual Guest user. Will be overriden with the data
     * from the database, if it exists (for the Guest user).
     * Admin can give him a name he wants, like "Guest", "Anonymous", "Surfer",
     * or even use a language different than English.
     */
    private static String DEFAULT_GUEST_NAME   = "Guest";
    public static String getDefaultGuestName() {
        return DEFAULT_GUEST_NAME;
    }

    //public final static boolean PRINT_STACK_TRACE = false;

    /**
     * By default, mvnForum disable passwordless authentication
     * If you want to authenticate user from realm or customized methods,
     * then set the variable to false (AT YOUR OWN RISK, authough I have not
     * found any security issues until now)
     */
    private static boolean DISABLE_PASSWORDLESS_AUTH = true;
    public static boolean getDisablePasswordlessAuth() {
        return DISABLE_PASSWORDLESS_AUTH;
    }

    private static boolean REQUIRE_ACTIVATION = false;
    public static boolean getRequireActivation() {
        return REQUIRE_ACTIVATION;
    }

    private static boolean ENABLE_LOGIN_INFO_IN_COOKIE = true;
    public static boolean getEnableLoginInfoInCookie() {
        return ENABLE_LOGIN_INFO_IN_COOKIE;
    }

    private static boolean ENABLE_LOGIN_INFO_IN_SESSION = true;
    public static boolean getEnableLoginInfoInSession() {
        return ENABLE_LOGIN_INFO_IN_SESSION;
    }

    private static boolean ENABLE_LOGIN_INFO_IN_REALM = false;
    public static boolean getEnableLoginInfoInRealm() {
        return ENABLE_LOGIN_INFO_IN_REALM;
    }

    private static boolean ENABLE_LOGIN_INFO_IN_CUSTOMIZATION = false;
    public static boolean getEnableLoginInfoInCustomization() {
        return ENABLE_LOGIN_INFO_IN_CUSTOMIZATION;
    }

    private static boolean ENABLE_LOGIN = true;
    public static boolean getEnableLogin() {
        return ENABLE_LOGIN;
    }

    private static boolean ENABLE_NEW_MEMBER = true;
    public static boolean getEnableNewMember() {
        return ENABLE_NEW_MEMBER;
    }

    private static boolean ENABLE_NEW_POST = true;
    public static boolean getEnableNewPost() {
        return ENABLE_NEW_POST;
    }

    private static boolean ENABLE_AVATAR = true;
    public static boolean getEnableAvatar() {
        return ENABLE_AVATAR;
    }

    private static boolean ENABLE_EMOTICON = true;
    public static boolean getEnableEmoticon() {
        return ENABLE_EMOTICON;
    }

    private static boolean ENABLE_RSS = true;
    public static boolean getEnableRSS() {
        return ENABLE_RSS;
    }

    private static boolean ENABLE_WATCH = true;
    public static boolean getEnableWatch() {
        return ENABLE_WATCH;
    }

    private static boolean ENABLE_ATTACHMENT = true;
    public static boolean getEnableAttachment() {
        return ENABLE_ATTACHMENT;
    }

    private static int MAX_ATTACHMENT_SIZE = 1024;
    public static int getMaxAttachmentSize() {
        return MAX_ATTACHMENT_SIZE;
    }

    // Default is false, but in KG it should be true
    private static boolean ENABLE_AUTO_FORUM_OWNER = false;
    public static boolean getEnableAutoForumOwner() {
        return ENABLE_AUTO_FORUM_OWNER;
    }

    private static boolean ENABLE_CAPTCHA = false;
    public static boolean getEnableCaptcha() {
        return ENABLE_CAPTCHA;
    }

    private static boolean ENABLE_NEW_INDEX_PAGE = true;
    public static boolean getEnableNewIndexPage() {
        return ENABLE_NEW_INDEX_PAGE;
    }

    /**
     * This is the maximum number of favorite threads that a user can add