/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Mozilla Communicator client code.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either of the GNU General Public License Version 2 or later (the "GPL"),
 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
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 * decision by deleting the provisions above and replace them with the notice
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 * ***** END LICENSE BLOCK ***** */

#ifndef nsPrefMigration_h___
#define nsPrefMigration_h___


#include "nscore.h"
#include "nsIFactory.h"
#include "nsISupports.h"
#include "nsFileSpec.h"
#include "nsIPrefBranch.h"
#include "nsIServiceManager.h"
#include "nsCOMPtr.h"
#include "nsIDOMWindowInternal.h"
#include "nsIFileSpec.h"
#include "nsPrefMigrationCIDs.h"
#include "nsIPrefMigration.h"
#include "nsVoidArray.h"
#include "nsILocalFile.h"

#define MIGRATION_SUCCESS    0
#define MIGRATION_RETRY      1
#define MIGRATION_CANCEL     2
#define MIGRATION_CREATE_NEW 3

#define MAX_DRIVES 4

//Interfaces Needed

#if defined(XP_MACOSX)
#define IMAP_MAIL_FILTER_FILE_NAME_FORMAT_IN_4x "%s Rules" 
#endif

#if defined(XP_UNIX) && !defined(XP_MACOSX)
#define NEED_TO_COPY_AND_RENAME_NEWSRC_FILES
#endif

class nsPrefConverter: public nsIPrefConverter
{
    public:
      NS_DEFINE_STATIC_CID_ACCESSOR(NS_PREFCONVERTER_CID) 

      nsPrefConverter();
      virtual ~nsPrefConverter();

      NS_DECL_ISUPPORTS
      NS_DECL_NSIPREFCONVERTER

      nsresult GetPlatformCharset(nsCString& aCharset);
};

class nsPrefMigration: public nsIPrefMigration
{
    public:
      NS_DEFINE_STATIC_CID_ACCESSOR(NS_PREFMIGRATION_CID) 

      static nsPrefMigration *GetInstance();

      nsPrefMigration();
      virtual ~nsPrefMigration();

      NS_DECL_ISUPPORTS

      NS_DECL_NSIPREFMIGRATION

      // todo try to move this to private.  We need this because we need to call this
      // from a thread.

      nsVoidArray mProfilesToMigrate;
      nsresult ProcessPrefsCallback(const char* oldProfilePathStr, const char * newProfilePathStr);
      void WaitForThread();

      nsresult mErrorCode;

    private:
      
      static nsPrefMigration* mInstance;
	
      nsresult ConvertPersistentStringToFileSpec(const char *str, nsIFileSpec *path);
      nsresult CreateNewUser5Tree(nsIFileSpec* oldProfilePath, 
                                  nsIFileSpec* newProfilePath);

      nsresult GetDirFromPref(nsIFileSpec* oldProfilePath,
                              nsIFileSpec* newProfilePath, 
                              const char* newDirName,
                              const char* pref, 
                              nsIFileSpec* newPath, 
                              nsIFileSpec* oldPath);

      nsresult GetSizes(nsFileSpec inputPath,
                        PRBool readSubdirs,
                        PRUint32* sizeTotal);

      nsresult ComputeSpaceRequirements(PRInt64 DriveArray[], 
                                        PRUint32 SpaceReqArray[], 
                                        PRInt64 Drive, 
                                        PRUint32 SpaceNeeded);

      nsresult DoTheCopy(nsIFileSpec *oldPath, 
                         nsIFileSpec *newPath,
                         PRBool readSubdirs); 
      nsresult DoTheCopy(nsIFileSpec *oldPath,
                         nsIFileSpec *newPath,
                         const char *fileOrDirName,
                         PRBool isDirectory = PR_FALSE);

      nsresult DoTheCopyAndRename(nsIFileSpec *oldPath, 
                              nsIFileSpec *newPath,
                              PRBool readSubdirs,
                              PRBool needToRenameFiles,
                              const char *oldName,
                              const char *newName); 
      nsresult DoTheCopyAndRename(nsIFileSpec *aPath, 
                              PRBool aReadSubdirs,
                              const char *aOldName,
                              const char *aNewName);
      nsresult CopyFilesByPattern(nsIFileSpec * oldPathSpec,
                              nsIFileSpec * newPathSpec,
                              const char *pattern);


#ifdef NEED_TO_COPY_AND_RENAME_NEWSRC_FILES
      nsresult CopyAndRenameNewsrcFiles(nsIFileSpec *newPath);
#endif /* NEED_TO_COPY_AND_RENAME_NEWSRC_FILES */

      nsresult DoSpecialUpdates(nsIFileSpec * profilePath);
      nsresult Rename4xFileAfterMigration(nsIFileSpec *profilePath, const char *oldFileName, const char *newFileName);
#ifdef IMAP_MAIL_FILTER_FILE_NAME_FORMAT_IN_4x
      nsresult RenameAndMove4xImapFilterFile(nsIFileSpec *profilePath, const char *hostname);
      nsresult RenameAndMove4xImapFilterFiles(nsIFileSpec *profilePath);
#endif /* IMAP_MAIL_FILTER_FILE_NAME_FORMAT_IN_4x */
      nsresult RenameAndMove4xPopStateFile(nsIFileSpec *profilePath);
      nsresult RenameAndMove4xPopFilterFile(nsIFileSpec *profilePath);
      nsresult RenameAndMove4xPopFile(nsIFileSpec * profilePath, const char *fileNameIn4x, const char *fileNameIn5x);
  
      nsresult DetermineOldPath(nsIFileSpec *profilePath, const char *oldPathName, const char *oldPathEntityName, nsIFileSpec *oldPath);
      nsresult SetPremigratedFilePref(const char *pref_name, nsIFileSpec *filePath);
#ifdef NEED_TO_COPY_AND_RENAME_NEWSRC_FILES
      nsresult GetPremigratedFilePref(const char *pref_name, nsIFileSpec **filePath);
#endif /* NEED_TO_COPY_AND_RENAME_NEWSRC_FILES */

      nsresult getPrefService();

      nsCOMPtr<nsIPrefBranch>    m_prefBranch;
      nsCOMPtr<nsILocalFile>     m_prefsFile; 
      nsCOMPtr<nsIDOMWindowInternal>    m_parentWindow;
      nsCOMPtr<nsIDOMWindow>    mPMProgressWindow;
};

#endif /* nsPrefMigration_h___ */