/*

* Copyright (c) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

*

*/

package com.nokia.mj.impl.installer.utils;

public class FileRoots

{

    private static int iResourceDriveNumber = -1;

    /**

     * Returns string describing current platform.

     */

    public static String getPlatform()

    {

        return "s60";

    }

    /**

     * Returns the directory that contains the Java applications

     * to be preinstalled in S60.

     */

    public static String getPreinstallDir()

    {

        return "\\resource\\java\\preinstall\\";

    }

    /**

     * Returns preinstallation drive for given filename.

     * Filename must contain full path including drive letter.

     */

    public static int getPreinstallDrive(String aFilename)

    {

        int drive = FileUtils.getDrive(aFilename);

        if (SysUtil.isDriveReadOnly(drive))

        {

            // if the drive is ReadOnly drive (e.g. Z:),

            // use system default installation drive (usually C:)

            drive = SysUtil.getDefaultPhoneMemory();

        }

        return drive;

    }

    /**

     * Returns directory where the icons registered to

     * platform should be copied in S60.

     */

    public static String getRegisteredIconDir(int aDrive)

    {

    }

    /**

     * Returns the directory that contains the resources

     * needed by Java Installer, e.g. 'trusted' icon

     */

    public static String getResourceDir()

    {

        return FileUtils.setDrive(

                   System.getProperty("JAVA_RES_ROOT"), getResourceDrive());

    }

    /**

     * Returns root folder for MIDP runtime in S60.

     */

    public static String getMidpRoot()

    {

        int resourceDrive = getResourceDrive();

        if (resourceDrive == 25)

        {

            // If MIDP is installed to Z: drive,

            // use C: drive as MIDP root.

            resourceDrive = 2;

        }

        String midpRoot = _getMidpRoot();

        return ((char)(resourceDrive + 'A')) + ":" + midpRoot;

    }

    /**

     * Returns root folder for applications in S60.

     */

    static String getAppsRoot()

    {

        // Note that drive letter does not matter here,

        // installer will replace it with correct one.

        return getMidpRoot() + "apps\\";

    }

    /**

     * Returns installer root folder in S60.

     */

    static String getInstallerRoot()

    {

        return getMidpRoot() + "installer\\";

    }

    /**

     * Returns the drive where OMJ was installed.

     */

    private static int getResourceDrive()

    {

        if (iResourceDriveNumber == -1)

        {

            iResourceDriveNumber = _getResourceDrive();

        }

        return iResourceDriveNumber;

    }

    /*** ----------------------------- NATIVE ----------------------------- */

    /**

     * Returns the drive number of the drive where the installer resources are.

     * In case of error logs the error and returns default drive number

     * that can be build specific but that is usually 2 (C: drive)

     *

     * @return the drive (0..25) where the installer resources are

     */

    private static native int _getResourceDrive();

    /**

     * Returns the path (without drive letter) to the MIDP runtime directory,

     * for example \private\102033E6\

     *

     * @return root directory where OMJ binary has been installed to

     */

    private static native String _getMidpRoot();

}