/*

* 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.applicationregistrator;

import com.nokia.mj.impl.installer.storagehandler.SuiteInfo;

import com.nokia.mj.impl.installer.utils.InstallerException;

import com.nokia.mj.impl.installer.utils.FileRoots;

import com.nokia.mj.impl.installer.utils.FileUtils;

import com.nokia.mj.impl.installer.utils.Log;

import com.nokia.mj.impl.installer.utils.PlatformUid;

import com.nokia.mj.impl.utils.Uid;

/**

 * Registers (and unregisters) Java application to S60 platform.

 * This version registers MIDlet to Symbian AppArc.

 * startSession() must be called before the other methods of this

 * class can be used.

 */

public final class ApplicationRegistrator

{

    // The OMJ default (svg) icon

    private static final String DEFAULT_SVG_ICON_NAME = "java_app.mif";

    private static final String DEFAULT_92_SVG_ICON_NAME = "java_app_92.mif";

    private static final String DEFAULT_SVG_ICON_SUFFIX = ".mif";

    /**

     * Native session handle

     */

    private int iSessionHandle = 0;

    /*** ----------------------------- PUBLIC ------------------------------ */

    /**

     * Starts application registration session.

     * Before the new session is started rolls back any pending (un)registrations

     * that are not committed (for example power off case). So do NOT start

     * sessions from several instances of ApplicationRegistrator concurrently.

     * The registrations and unregistrations are done only

     * when commitSession is called.

     * If you want to discard the registrations and unregistrations

     * call rollbackSession.

     * Does nothing if session has already been successfully started

     * from this ApplicationRegistrator instance.

     *

     * @throws InstallerException if the session cannot created

     * @see commitSession

     * @see rollbackSession

     */

    public void startSession()

    {

        if (0 != iSessionHandle)

        {

            // session has already been created, do nothing

            Log.logWarning("ApplicationRegistrator.startSession called although session is already open.");

            return;

        }

        // native method writes error log and returns

        // negative Symbian error code if it fails

        int ret = _startSession();

        if (ret < 0)

        {

            InstallerException.internalError("Creating session failed with code " + ret);

        }

        iSessionHandle = ret;

    }

    /**

     * Registers one Java application to S60 AppArc.

     *

     * @param aAppRegInfo Information needed to register the application

     * @throws InstallerException if registration cannot done or

     *  startSession has not been called successfully

     * @see startSession

     * @see AppRegInfo

     */

    public void registerApplication(AppRegInfo aAppRegInfo)

    {

        if (0 == iSessionHandle)

        {

            InstallerException.internalError("No valid session.");

        }

        // check that aAppRegInfo.iTargetDrive is "A:" ... "Z:"

        int err = 0;

        aAppRegInfo.iTargetDrive = aAppRegInfo.iTargetDrive.toUpperCase();

        if (aAppRegInfo.iTargetDrive.length() != 2)

        {

            err = 1;

        }

        else if (aAppRegInfo.iTargetDrive.charAt(1) != ':')

        {

            err = 1;

        }

        else if ((aAppRegInfo.iTargetDrive.charAt(0) < 'A') ||

                 (aAppRegInfo.iTargetDrive.charAt(0) > 'Z'))

        {

            err = 1;

        }

        if (1 == err)

        {

            InstallerException.internalError(

                "Invalid target drive " + aAppRegInfo.iTargetDrive);

        }

        // Symbian AppArc can store max 16 characters for group name.

        String groupName = aAppRegInfo.iGroupName;

        if (groupName.length() > 16)

        {

            groupName = aAppRegInfo.iGroupName.substring(0, 16);

            Log.logWarning("ApplicationRegistrator.registerApplication: Application group name len > 16, cut to "

                           + groupName);

        }

        Log.log("ApplicationRegistrator registerApplication called with  "

                + aAppRegInfo.toString());

        // Applications with name longer than 80 characters cannot be

        // launched in Symbian.

        String midletName = aAppRegInfo.iMIDletName;

        if (midletName.length() > 80)

        {

            midletName = midletName.substring(0, 80);

            Log.logWarning("ApplicationRegistrator.registerApplication: midlet name len > 80, cut to "

                           + midletName);

        }

        try

        {

            err = _registerApplication(

                      iSessionHandle,

                      PlatformUid.getIntValue(aAppRegInfo.iUid),

                      groupName,

                      midletName,

                      aAppRegInfo.iTargetDrive,

                      aAppRegInfo.iIconFileName,

                      aAppRegInfo.iJarFileName,

                      aAppRegInfo.iHidden,

                      aAppRegInfo.iBackground);

        }

        catch (Throwable t)

        {

            InstallerException.internalError("Registering application "

                                             + "failed with unexpected throwable " + t.toString());

        }

        if (err < 0)

        {

            InstallerException.internalError("Registering application "

                                             + aAppRegInfo.iUid.getStringValue() + " failed with code " + err);

        }

    }

    /**

     * Unregisters one Java application from S60 AppArc.

     *

     * @param aAppRegInfo Information needed to unregister the application,

     *  only Uid is needed to unregister application in S60

     * @throws InstallerException if unregistration cannot done or

     *  startSession has not been called successfully

     * @see startSession

     * @see AppRegInfo

     */

    public void unregisterApplication(AppRegInfo aAppRegInfo)

    {

        if (0 == iSessionHandle)

        {

            InstallerException.internalError("No valid session.");

        }

        Log.log("Unregistering application " + aAppRegInfo.iUid.getStringValue());

        int err = _unregisterApplication(iSessionHandle, PlatformUid.getIntValue(aAppRegInfo.iUid));

        if (err < 0)

        {

            InstallerException.internalError("Unregistering application "

                                             + aAppRegInfo.iUid.getStringValue() + " failed with code " + err);

        }

    }

    /**

     * Commits the registrations and unregistrations.

     * Ends the current session if commit is successfull.

     * If commit fails the session is kept open so that

     * rollbackSession can be called.

     *

     * @param aSynchronous if true, makes synchronous commit

     *

     * @throws InstallerException if session cannot be committed

     */

    public void commitSession(boolean aSynchronous)

    {

        if (0 == iSessionHandle)

        {

            InstallerException.internalError("No valid session.");

        }

        int err = _commitSession(iSessionHandle, aSynchronous);

        if (err < 0)

        {

            InstallerException.internalError("Commiting session failed with code " + err);

        }

        // Current session has been closed

        iSessionHandle = 0;

    }

    /**

     * Rolls back the registrations and unregistrations.

     * Ends the current session.

     *

     * @throws InstallerException if session cannot be rolled back.

     */

    public void rollbackSession()

    {

        if (0 == iSessionHandle)

        {

            InstallerException.internalError("No valid session.");

        }

        int err = _rollbackSession(iSessionHandle);

        // Session is closed always when rollback is called

        iSessionHandle = 0;

        if (err < 0)

        {

            InstallerException.internalError("Rolling back the session failed with code " + err);

        }

    }

    /**

     * Closes the current session if it still open.

     * If registerApplication or unregisterApplication has been called,

     * commitSession or rollbackSession must be called instead of this method.

     */

    public void closeSession()

    {

        if (0 == iSessionHandle)

        {

            return;

        }

        _closeSession(iSessionHandle);

        // Current session has been closed

        iSessionHandle = 0;

    }

    /**

     * Checks whether the Uid is in use from S60 AppArc.

     *

     * @param aUid The Uid of the application.

     * @return true if the Uid is already in use

     * @throws InstallerException if checking cannot be done

     */

    public boolean uidInUse(Uid aUid)

    {

        if (0 == iSessionHandle)

        {

            InstallerException.internalError("No valid session.");

        }

        int ret;

        PlatformUid s60Uid = (PlatformUid)PlatformUid.createUid(aUid.getStringValue());

        if (null == s60Uid)

        {

            InstallerException.internalError("Illegal S60 Uid");

        }

        ret = _uidInUse(iSessionHandle, s60Uid.getIntValue());

        if (0 == ret)

        {

            return false;

        }

        else

        {

            return true;

        }

    }

    /**

     * Returns the logical group name for an installed application.

     *

     * @param aUid The Uid of the application.

     * @return the group name of the application. Can be empty string.

     * @throws InstallerException if the group name cannot be returned

     */

    public String getGroupName(Uid aUid)

    {

        if (0 == iSessionHandle)

        {

            InstallerException.internalError("No valid session.");

        }

        int ret;

        StringBuffer groupName = new StringBuffer("");

        PlatformUid s60Uid = (PlatformUid)PlatformUid.createUid(aUid.getStringValue());

        if (null == s60Uid)

        {

            InstallerException.internalError("Illegal S60 Uid");

        }

        ret = _getGroupName(iSessionHandle, s60Uid.getIntValue(), groupName);

        if (-1 == ret)

        {

            // Symbian error code KErrNotFound means that there is no

            // application with aUid, just log this error so that

            // the installation / uninstallation operation currently on-going

            // is not stopped.

            Log.log("ApplicationRegistrator.getGroupName() failed. No app with such uid.");

        }

        else if (ret < -1)

        {

            InstallerException.internalError("Getting group name failed with code " + ret);

        }

        return groupName.toString();

    }

    /**

     * Converts icon to platform specific format.

     *

     * @param aInputIconFilename file name for input icon file

     * @param aOutputIconFilename file name for output icon file

     * @param aJarFilename jar file name if aInputIconFilename specifies

     *    file inside jar file,

     *    or null if aInputIconFilename specifies file from disk

     * @param aIconSuffix the correct suffix of the icon is returned through

     * @return true if the conversion succeeds

     */

    public boolean convertIcon(

        String aInputIconFilename,

        String aOutputIconFilename,

        String aJarFilename,

        StringBuffer aIconSuffix)

    {

        Log.log("ApplicationRegistrator.convertIcon: " + aInputIconFilename +

                " --> " + aOutputIconFilename + ", from jar " + aJarFilename);

        return _convertIcon(aInputIconFilename, aOutputIconFilename,

                            aJarFilename, aIconSuffix);

    }

    /**

     * Return path to the default icon (SVG icon in S60)

     *

     * @return full path name to the default icon.

     */

    public String getDefaultIconPath()

    {

        String iconPath;

        if (_runningIn92Emulator())

        {

            // In real 9.2 devices the icon has the same name as in earlier

            // devices. Only emulator is special case.

            iconPath = FileRoots.getResourceDir() + DEFAULT_92_SVG_ICON_NAME;

        }

        else

        {

            iconPath = FileRoots.getResourceDir() + DEFAULT_SVG_ICON_NAME;

        }

        if (FileUtils.exists(iconPath))

        {

            return iconPath;

        }

        // Executing code is some special environment, icon is not in the same

        // drive as installer itself.

        String driveLetter = iconPath.substring(0,1).toLowerCase();

        if (driveLetter.charAt(0) == 'z')

        {

            driveLetter = "C";

        }

        else

        {

            driveLetter = "Z";

        }

        // change drive letter

        StringBuffer newIconPath = new StringBuffer(iconPath);

        newIconPath.replace(0, 1, driveLetter);

        return newIconPath.toString();

    }

    /**

     * Return file suffix of the default icon

     *

     * @return file suffix of the default icon ('.mif' is S60)

     */

    public String getDefaultIconSuffix()

    {

        return DEFAULT_SVG_ICON_SUFFIX;

    }

    /**

     * Returns true if the current device is touch screen

     * device without physical LSK and RSK

     *

     * @return true if Installer should store the value of

     *  Nokia-MIDlet-On-Screen-Keypad to Storage

     */

    public boolean isOnDeviceKeypadNeeded()

    {

        return _isOnDeviceKeypadNeeded();

    }

    /**

     * Sends a process to process notification to the parent process

     * of Java Installer telling that Installer is about to start

     * displaying UI dialogs.

     * The parent process reacts to the notification by hiding its

     * installation related dialogs.

     */

    public void notifyLauncherThatUiIsReady()

    {

        _notifyLauncherThatUiIsReady();

        return;

    }

    /**

     * Adds an entry to platform installation log.

     *

     * @param aSuite application suite information

     * @param aAction 0 - installation, 1 - uninstallation

     */

    public static void addInstallLogEntry(SuiteInfo aSuite, int aAction)

    {

        // In S60 the version number is restricted to limited range.

        // If version number is outside of this range, use version

        // number 0 instead.

        int result = _addInstallLogEntry(

            aAction, PlatformUid.getIntValue(aSuite.getUid()),

            aSuite.getName(), aSuite.getVendor(),

            getVersion(aSuite.getVersion().getMajor(), 0, 127),

            getVersion(aSuite.getVersion().getMinor(), 0, 99),

            getVersion(aSuite.getVersion().getMicro(), 0, 32767));

        if (result < 0)

        {

            Log.logError("Adding installation log entry failed, err=" + result);

        }

        else

        {

            Log.log("Added installation log entry");

        }

    }

    /*** ----------------------------- PACKAGE ---------------------------- */

    /*** ----------------------------- PRIVATE ---------------------------- */

    /**

     * Checks that given version number is between specified minimum and

     * maximum value range (inclusive) and if it is returns version number.

     * If version number is out of given range, returns 0.

     */

    private static int getVersion(int aVersion, int aMin, int aMax)

    {

        if (aVersion >= aMin && aVersion <= aMax)

        {

            return aVersion;

        }

        return 0;

    }

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

    /**

     * Starts native application registration session.

     *

     * @return native session handle or Symbian error code (negative number)

     */

    private static native int _startSession();

    /**

     * Registers Java Application to S60 AppArc

     *

     * @param aSessionHandle

     * @param aUid The Uid of the application.

     * @param aGroupName

     * @param aMIDletName

     * @param aTargetDrive Must be "C:", "E:", ..., "J:"

     * @param aIconFileName the name of the icon file

     * @param aJarFileName Full path name of the .jar file

     * @param aHidden

     * @param aBackground

     * @return 0 if registration succeeded or Symbian error code

     */

    private static native int _registerApplication(

        int aSessionHandle,

        int aUid,

        String aGroupName,

        String aMIDletName,

        String aTargetDrive,

        String aIconFileName,