/*==LICENSE==*

CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011  Cyan Worlds, Inc.

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 3 of the License, or
(at your option) any later version.

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, see <http://www.gnu.org/licenses/>.

Additional permissions under GNU GPL version 3 section 7

If you modify this Program, or any covered work, by linking or
combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK,
NVIDIA PhysX SDK, Microsoft DirectX SDK, OpenSSL library, Independent
JPEG Group JPEG library, Microsoft Windows Media SDK, or Apple QuickTime SDK
(or a modified version of those libraries),
containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA,
PhysX SDK EULA, DirectX SDK EULA, OpenSSL and SSLeay licenses, IJG
JPEG Library README, Windows Media SDK EULA, or QuickTime SDK EULA, the
licensors of this Program grant you additional
permission to convey the resulting work. Corresponding Source for a
non-source form of such a combination shall include the source code for
the parts of OpenSSL and IJG JPEG Library used as well as that of the covered
work.

You can contact Cyan Worlds, Inc. by email legal@cyan.com
 or by snail mail at:
      Cyan Worlds, Inc.
      14617 N Newport Hwy
      Mead, WA   99021

*==LICENSE==*/
//////////////////////////////////////////////////////////////////////////////
//                                                                          //
//  plStatusLog Functions                                                   //
//                                                                          //
//// History /////////////////////////////////////////////////////////////////
//                                                                          //
//  10.02.2001 mcn  - Created                                               //
//  10.16.2001 mcn  - Added static versions of AddLine() so you don't need  //
//                    to explicitly create a log                            //
//  10.17.2001 mcn  - Added support for carriage returns in printed lines   //
//  10.24.2002 eap  - Added kDebugOutput flag for writing to debug window   //
//  10.25.2002 eap  - Updated to work under unix                            //
//  12.13.2002 eap  - Added kStdout flag                                    //
//                                                                          //
//////////////////////////////////////////////////////////////////////////////

#include <stdarg.h>
#include <stdlib.h>
#include "hsThread.h"
#include "hsTemplates.h"
#include "hsTimer.h"
#include "hsStlUtils.h"
#include "plFile/plFileUtils.h"
#include "plStatusLog.h"
#include "hsStlUtils.h"
#include "plFile/hsFiles.h"
#include "plUnifiedTime/plUnifiedTime.h"
#include "pnProduct/pnProduct.h"

#include "plEncryptLogLine.h"

#if HS_BUILD_FOR_UNIX
    #include <limits.h>
    #define MAX_PATH PATH_MAX
#elif HS_BUILD_FOR_WIN32
    #include <Shlobj.h>
#endif

//////////////////////////////////////////////////////////////////////////////
//// plStatusLogMgr Stuff ////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////

wchar       plStatusLogMgr::fBasePath[ MAX_PATH ] = L"";

//// Constructor & Destructor ////////////////////////////////////////////////

plStatusLogMgr::plStatusLogMgr()
{
    fDisplays = nil;
    fCurrDisplay = nil;
    fDrawer = nil;
    fLastLogChangeTime = 0;

#if HS_BUILD_FOR_WIN32
    SHGetSpecialFolderPathW(NULL, fBasePath, CSIDL_LOCAL_APPDATA, TRUE);
    plFileUtils::ConcatFileName(fBasePath, L"Uru Live");
//#elif HS_BUILD_FOR_DARWIN
// Do some Mac specific thing here eventually
#else
    wchar* temp = hsStringToWString(getenv("HOME"));
    swprintf(fBasePath, MAX_PATH, L"%S/.cache/Uru Live", temp);
    delete[] temp;
#endif

    plFileUtils::ConcatFileName(fBasePath, L"Log");
    plFileUtils::EnsureFilePathExists(fBasePath);
}

plStatusLogMgr::~plStatusLogMgr()
{
    // Unlink all the displays, but don't delete them; leave that to whomever owns them
    while( fDisplays != nil )
    {
        plStatusLog *log = fDisplays;

        fDisplays->IUnlink();

        if( log->fFlags & plStatusLog::kDeleteForMe )
            DEL(log);
    }
}

plStatusLogMgr  &plStatusLogMgr::GetInstance( void )
{
    static plStatusLogMgr   theManager;
    return theManager;
}

//// IEnsurePathExists ///////////////////////////////////////////////////////

void    plStatusLogMgr::IEnsurePathExists( const wchar *dirName )
{
    // Note: this creates the directory if it doesn't exist, or if it does,
    // returns false
    plFileUtils::CreateDir( dirName );
}

//// IPathAppend /////////////////////////////////////////////////////////////

void    plStatusLogMgr::IPathAppend( wchar *base, const wchar *extra, unsigned maxLen )
{
    if (!base || !extra)
        return;

    unsigned baseLen = wcslen(base);
    unsigned extraLen = wcslen(extra);

    bool needsSeparator = false;
    if (baseLen >= 1)
        needsSeparator = (base[baseLen - 1] != WPATH_SEPARATOR);

    if (needsSeparator)
    {
        if ((baseLen + 1 + 1) >= maxLen)
            return; // abort, buffer isn't big enough
        base[baseLen] = WPATH_SEPARATOR;
        ++baseLen;
        base[baseLen] = '\0';
    }
    
    // concat the strings, making sure not to overrun the buffer
    unsigned curExtraPos = 0;
    for (unsigned curBasePos = baseLen; curBasePos < maxLen; ++curBasePos)
    {
        base[curBasePos] = extra[curExtraPos];
        if (extra[curExtraPos] == '\0')
            break; // done
        ++curExtraPos;
    }

    // ensure we are null-terminated
    base[maxLen - 1] = '\0';
}

//// Draw ////////////////////////////////////////////////////////////////////

void    plStatusLogMgr::Draw( void )
{
    /// Just draw current plStatusLog
    if( fCurrDisplay != nil && fDrawer != nil )
    {
        plStatusLog* firstLog = nil;
        if (hsTimer::GetSysSeconds() - fLastLogChangeTime < 1)
            firstLog = fDisplays;

        fDrawer->Draw(fCurrDisplay, firstLog);
    }
}

//// CreateStatusLog /////////////////////////////////////////////////////////

plStatusLog *plStatusLogMgr::CreateStatusLog( UInt8 numDisplayLines, const char *filename, UInt32 flags )
{
    wchar* wFilename = hsStringToWString(filename);
    plStatusLog* ret = CreateStatusLog(numDisplayLines, wFilename, flags);
    delete [] wFilename;
    return ret;
}

plStatusLog *plStatusLogMgr::CreateStatusLog( UInt8 numDisplayLines, const wchar *filename, UInt32 flags )
{
    IEnsurePathExists( fBasePath );
    plStatusLog *log = NEW(plStatusLog)( numDisplayLines, filename, flags );

    // Put the new log in its alphabetical position
    plStatusLog** nextLog = &fDisplays;
    while (*nextLog)
    {
        if (wcsicmp(filename, (*nextLog)->GetFileNameW()) <= 0)
            break;
        nextLog = &(*nextLog)->fNext;
    }
    log->ILink(nextLog);

    log->fDisplayPointer = &fCurrDisplay;

    return log;
}

//// ToggleStatusLog /////////////////////////////////////////////////////////

void    plStatusLogMgr::ToggleStatusLog( plStatusLog *logToDisplay )
{
    if( fCurrDisplay == logToDisplay )
        fCurrDisplay = nil;
    else
        fCurrDisplay = logToDisplay;

    fLastLogChangeTime = hsTimer::GetSysSeconds();
}

//// SetCurrStatusLog ////////////////////////////////////////////////////////

void plStatusLogMgr::SetCurrStatusLog(const char* logName)
{
    wchar* wLogName = hsStringToWString(logName);
    SetCurrStatusLog(wLogName);
    delete [] wLogName;
}

void plStatusLogMgr::SetCurrStatusLog(const wchar* logName)
{
    plStatusLog* log = FindLog(logName, false);
    if (log != nil)
        fCurrDisplay = log;
}

//// NextStatusLog ///////////////////////////////////////////////////////////

void    plStatusLogMgr::NextStatusLog( void )
{
    if( fCurrDisplay == nil )
        fCurrDisplay = fDisplays;
    else
        fCurrDisplay = fCurrDisplay->fNext;

    fLastLogChangeTime = hsTimer::GetSysSeconds();
}

void    plStatusLogMgr::PrevStatusLog( void )
{
    if( fCurrDisplay == nil )
    {
        fCurrDisplay = fDisplays;
        while (fCurrDisplay && fCurrDisplay->fNext)
            fCurrDisplay = fCurrDisplay->fNext;
    }
    else
    {
        plStatusLog* lastLog = fDisplays;
        while (lastLog && lastLog->fNext != fCurrDisplay)
            lastLog = lastLog->fNext;

        fCurrDisplay = lastLog;
    }

    fLastLogChangeTime = hsTimer::GetSysSeconds();
}

//// FindLog ////////////////////////////////////////////////////////////////

plStatusLog *plStatusLogMgr::FindLog( const char *filename, hsBool createIfNotFound )
{
    wchar* wFilename = hsStringToWString(filename);
    plStatusLog* ret = FindLog(wFilename, createIfNotFound);
    delete [] wFilename;
    return ret;
}

plStatusLog *plStatusLogMgr::FindLog( const wchar *filename, hsBool createIfNotFound )
{
    plStatusLog *log = fDisplays;

    while( log != nil )
    {
        if( wcsicmp( log->GetFileNameW(), filename ) == 0 )
            return log;

        log = log->fNext;
    }

    if( !createIfNotFound )
        return nil;

    // Didn't find one, so create one! (make it a nice default one :)
    log = CreateStatusLog( kDefaultNumLines, filename, plStatusLog::kFilledBackground | 
                                                       plStatusLog::kDeleteForMe );

    return log;
}

//// SetBasePath ////////////////////////////////////////////////////////////////

void plStatusLogMgr::SetBasePath( const char * path )
{
    wchar* wPath = hsStringToWString(path);
    SetBasePath(wPath);
    delete [] wPath;
}

void plStatusLogMgr::SetBasePath( const wchar * path )
{
    wcscpy( fBasePath, path );
}


//// BounceLogs ///////////////////////////////////////////////////////////////

void plStatusLogMgr::BounceLogs()
{
    plStatusLog *log = fDisplays;

    while( log != nil )
    {
        plStatusLog * tmp = log;
        log = log->fNext;
        tmp->Bounce();
    }
}

//// DumpLogs ////////////////////////////////////////////////////////////////

bool plStatusLogMgr::DumpLogs( const char *newFolderName )
{
    wchar* wFolderName = hsStringToWString(newFolderName);
    bool ret = DumpLogs(wFolderName);
    delete [] wFolderName;
    return ret;
}

bool plStatusLogMgr::DumpLogs( const wchar *newFolderName )
{
    bool retVal = true; // assume success
    // create root path and make sure it exists
    wchar temp[MAX_PATH];
    std::wstring newPath = L"";
    if (fBasePath)
    {
        wcsncpy(temp, fBasePath, MAX_PATH);
        IPathAppend(temp, newFolderName, MAX_PATH);
        newPath = temp;
    }
    else
        newPath = newFolderName;
    IEnsurePathExists(newPath.c_str());

#if HS_BUILD_FOR_WIN32
    hsWFolderIterator folderIterator;
    if (fBasePath)
        folderIterator.SetPath(fBasePath);
    else
        folderIterator.SetPath(L".");

    while (folderIterator.NextFile())
    {
        if (folderIterator.IsDirectory())
            continue;

        std::wstring baseFilename = folderIterator.GetFileName();
        std::wstring source;
        if (fBasePath)
        {
            wcsncpy(temp, fBasePath, MAX_PATH);
            IPathAppend(temp, baseFilename.c_str(), MAX_PATH);
            source = temp;
        }
        else
            source = baseFilename;
        
        std::wstring destination;
        wcsncpy(temp, newPath.c_str(), MAX_PATH);
        IPathAppend(temp, baseFilename.c_str(), MAX_PATH);
        destination = temp;

        bool succeeded = (CopyFileW(source.c_str(), destination.c_str(), FALSE) != 0);
        retVal = retVal && succeeded;
    }
#endif
    return retVal;
}

//////////////////////////////////////////////////////////////////////////////
//// plStatusLog ////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////

UInt32 plStatusLog::fLoggingOff = false;

plStatusLog::plStatusLog( UInt8 numDisplayLines, const wchar *filename, UInt32 flags )
{
    fFileHandle = nil;
    fSize = 0;
    fForceLog = false;

    fMaxNumLines = numDisplayLines;
    if( filename != nil )
    {
        fFilename = filename;
        char* temp = hsWStringToString(filename);
        fCFilename = temp;
        delete [] temp;
    }
    else
    {
        fFilename = L"";
        fCFilename = "";
        flags |= kDontWriteFile;
    }

    fOrigFlags = fFlags = flags;

    IInit();
}

plStatusLog::~plStatusLog()
{
    IFini();
}

void    plStatusLog::IInit()
{
    int i;

    fFlags = fOrigFlags;

    fLines = TRACKED_NEW char *[ fMaxNumLines ];
    fColors = TRACKED_NEW UInt32[ fMaxNumLines ];
    for( i = 0; i < fMaxNumLines; i++ )
    {
        fLines[ i ] = nil;
        fColors[ i ] = kWhite;
    }

    fNext = nil;
    fBack = nil;

}

bool plStatusLog::IReOpen( void )
{
    if( fFileHandle != nil )
    {
        fclose( fFileHandle );
        fFileHandle = nil;
    }

    // Open the file, clearing it, if necessary
    if(!(fFlags & kDontWriteFile))
    {
        wchar file[ MAX_PATH ];
        wchar fileNoExt[MAX_PATH];
        wchar* ext=nil;
        IParseFileName(file, MAX_PATH, fileNoExt, &ext);
        fEncryptMe = false;
#ifdef PLASMA_EXTERNAL_RELEASE
        fEncryptMe = ( wcsicmp( fFilename.c_str(), L"chat.log" ) != 0 ) ? true : false;
        if( fEncryptMe )
            ext = L".elf";
#endif
        wchar fileToOpen[MAX_PATH];
        swprintf(fileToOpen, MAX_PATH, L"%s.0%s", fileNoExt, ext);
        if (!(fFlags & kDontRotateLogs))
        {
            wchar work[MAX_PATH], work2[MAX_PATH];
            swprintf(work, MAX_PATH, L"%s.3%s",fileNoExt,ext);
            plFileUtils::RemoveFile(work);
            swprintf(work2, MAX_PATH, L"%s.2%s",fileNoExt,ext);
            plFileUtils::FileMove(work2, work);
            swprintf(work, MAX_PATH, L"%s.1%s",fileNoExt,ext);
            plFileUtils::FileMove(work, work2);
            plFileUtils::FileMove(fileToOpen, work);
        }
        
        if (fFlags & kAppendToLast)
        {
            fFileHandle = hsWFopen( fileToOpen, fEncryptMe ? L"ab" : L"at" );
        }
        else
        {
            fFileHandle = hsWFopen( fileToOpen, fEncryptMe ? L"wb" : L"wt" );
            // if we need to reopen lets just append
            fFlags |= kAppendToLast;
        }
    }

    if (fFileHandle)
        fSize = ftell( fFileHandle );
    else
        fSize = 0;

    return fFileHandle != nil;
}

void    plStatusLog::IFini( void )
{
    int     i;

    if( fFileHandle != nil )
    {
        fclose( fFileHandle );
        fFileHandle = nil;
    }

    if( *fDisplayPointer == this )
        *fDisplayPointer = nil;

    if( fBack != nil || fNext != nil )
        IUnlink();

    for( i = 0; i < fMaxNumLines; i++ )
        delete [] fLines[ i ];

    delete [] fLines;
    delete [] fColors;
}


void plStatusLog::IParseFileName(wchar* file, size_t fnsize, wchar* fileNoExt, wchar** ext) const
{
    const wchar *base = plStatusLogMgr::IGetBasePath();
    if( wcslen( base ) != nil )
        swprintf( file, fnsize, L"%s%s%s", base, WPATH_SEPARATOR_STR, fFilename.c_str() );
    else
        wcscpy( file, fFilename.c_str() );

    plFileUtils::EnsureFilePathExists( file );
    
    // apache-style file backup
    
    *ext = wcsrchr(file, L'.');
    if (*ext)
    {
        int fileLen = *ext - file;
        wcsncpy(fileNoExt, file, fileLen);
        fileNoExt[fileLen] = L'\0';
    }
    else
    {
        wcscpy(fileNoExt, file);
        *ext = L'\0';
    }
    
}

//// IUnlink /////////////////////////////////////////////////////////////////

void    plStatusLog::IUnlink( void )
{
    hsAssert( fBack, "plStatusLog not in list" );
    if( fNext )
        fNext->fBack = fBack;
    *fBack = fNext;

    fBack = nil;
    fNext = nil;
}

//// ILink ///////////////////////////////////////////////////////////////////

void    plStatusLog::ILink( plStatusLog **back )
{
    hsAssert( fNext == nil && fBack == nil, "Trying to link a plStatusLog that's already linked" );

    fNext = *back;
    if( *back )
        (*back)->fBack = &fNext;
    fBack = back;
    *back = this;
}

//// IAddLine ////////////////////////////////////////////////////////////////
//  Actually add a stinking line.

bool plStatusLog::IAddLine( const char *line, Int32 count, UInt32 color )
{
    int     i;

    if(fLoggingOff && !fForceLog)
        return true;

    /// Scroll pointers up
    hsTempMutexLock lock( fMutex );

    bool ret = true;

    if (fMaxNumLines > 0)
    {
        delete [] fLines[ 0 ];
        for( i = 0; i < fMaxNumLines - 1; i++ )
        {
            fLines[ i ] = fLines[ i + 1 ];
            fColors[ i ] = fColors[ i + 1 ];
        }
    }

    /// Add new
    if( line == nil || strlen( line ) == 0 )
    {
        if (fMaxNumLines > 0)
        {
            fColors[ i ] = 0;
            fLines[ i ] = nil;
        }
        ret = IPrintLineToFile( "", 0 );
    }
    else
    {
        if( count < 0 )
            count = strlen( line );

        if (fMaxNumLines > 0)
        {
            fLines[ i ] = TRACKED_NEW char[ count + 1 ];
            hsStrncpy( fLines[ i ], line, count + 1 );
            fLines[ i ][ count ] = 0;

            char *c = strchr( fLines[ i ], '\n' );
            if( c != nil )
            {
                *c = 0;
                count--;
            }

            fColors[ i ] = color;
        }

        ret = IPrintLineToFile( line, count );
    }

    return ret;
}

//// AddLine /////////////////////////////////////////////////////////////////

bool plStatusLog::AddLine( const char *line, UInt32 color )
{
    char    *c, *str;
    if(fLoggingOff && !fForceLog)
        return true;

    bool ret = true;

    /// Scan for carriage returns and feed each section into IAddLine()
    for( str = (char *)line; ( c = strchr( str, '\n' ) ) != nil; str = c + 1 )
    {
        // So if we got here, c points to a carriage return...
        ret = IAddLine( str, (unsigned_ptr)c - (unsigned_ptr)str, color );
    }

    /// We might have some left over
    if( strlen( str ) > 0 )
    {
        ret &= IAddLine( str, -1, color );
    }

    return ret;
}

//// AddLine printf-style Variations /////////////////////////////////////////

bool plStatusLog::AddLineV( const char *format, va_list arguments )
{
    if(fLoggingOff && !fForceLog)
        return true;
    return AddLineV( kWhite, format, arguments );
}

bool plStatusLog::AddLineV( UInt32 color, const char *format, va_list arguments )
{
    if(fLoggingOff && !fForceLog)
        return true;
    char buffer[2000];
    vsprintf(buffer, format, arguments);
    return AddLine( buffer, color );
}

bool plStatusLog::AddLineF( const char *format, ... )
{
    if(fLoggingOff && !fForceLog)
        return true;
    va_list arguments;
    va_start( arguments, format );

    return AddLineV( kWhite, format, arguments );
}

bool plStatusLog::AddLineF( UInt32 color, const char *format, ... )
{
    if(fLoggingOff && !fForceLog)
        return true;
    va_list arguments;
    va_start( arguments, format );

    return AddLineV( color, format, arguments );
}

//// AddLine Static Variations ///////////////////////////////////////////////

bool plStatusLog::AddLineS( const char *filename, const char *format, ... )
{
    plStatusLog *log = plStatusLogMgr::GetInstance().FindLog( filename );

    if(fLoggingOff && !log->fForceLog)
        return true;

    va_list arguments;
    va_start( arguments, format );

    return log->AddLineV( format, arguments );
}

bool plStatusLog::AddLineS( const char *filename, UInt32 color, const char *format, ... )
{
    plStatusLog *log = plStatusLogMgr::GetInstance().FindLog( filename );

    if(fLoggingOff && !log->fForceLog)
        return true;

    va_list arguments;
    va_start( arguments, format );

    return log->AddLineV( color, format, arguments );
}

//// Clear ///////////////////////////////////////////////////////////////////

void    plStatusLog::Clear( void )
{
    int     i;


    for( i = 0; i < fMaxNumLines; i++ )
    {
        delete [] fLines[ i ];
        fLines[ i ] = nil;
    }
}


//// Bounce //////////////////////////////////////////////////////////////////

void    plStatusLog::Bounce( UInt32 flags)
{
    if (flags)
        fOrigFlags=flags;
    Clear();
    if( fFileHandle != nil )
    {
        fclose( fFileHandle );
        fFileHandle = nil;
    }
    AddLine( "--------- Bounced Log ---------" );
}

//// IPrintLineToFile ////////////////////////////////////////////////////////

bool plStatusLog::IPrintLineToFile( const char *line, UInt32 count )
{
    if( fFlags & kDontWriteFile )
        return true;

#ifdef PLASMA_EXTERNAL_RELEASE
    UInt8 hint = 0;
    if( fFlags & kAppendToLast )
    {
        hint = (UInt8)fSize;
    }
#endif

    if (!fFileHandle)
        IReOpen();

    bool ret = ( fFileHandle!=nil );

    if( fFileHandle != nil )
    {
        char work[256];
        char buf[2000];
        buf[0] = 0;

        //build line to encrypt

        if( count != 0 )
        {
            if ( fFlags & kTimestamp )
            {
                snprintf(work, arrsize(work), "(%s) ", plUnifiedTime(kNow).Format("%m/%d %H:%M:%S").c_str());
                strncat(buf, work, arrsize(work));
            }
            if ( fFlags & kTimestampGMT )
            {
                snprintf(work, arrsize(work), "(%s) ", plUnifiedTime::GetCurrentTime().Format("%m/%d %H:%M:%S UTC").c_str());
                strncat(buf, work, arrsize(work));
            }
            if ( fFlags & kTimeInSeconds )
            {
                snprintf(work, arrsize(work), "(%lu) ", (unsigned long)plUnifiedTime(kNow).GetSecs());
                strncat(buf, work, arrsize(work));
            }
            if ( fFlags & kTimeAsDouble )
            {
                snprintf(work, arrsize(work), "(%f) ", plUnifiedTime(kNow).GetSecsDouble());
                strncat(buf, work, arrsize(work));
            }
            if (fFlags & kRawTimeStamp)
            {
                snprintf(work, arrsize(work), "[t=%10u] ", hsTimer::GetSeconds());
                strncat(buf, work, arrsize(work));
            }
            if (fFlags & kThreadID)
            {
                snprintf(work, arrsize(work), "[t=%u] ", hsThread::GetMyThreadId());
                strncat(buf, work, arrsize(work));
            }

            size_t remaining = arrsize(buf) - strlen(buf) - 1;
            if (!fEncryptMe) remaining -= 1;
            if (count <= remaining) {
                strncat(buf, line, count);
            } else {
                strncat(buf, line, remaining);
            }

            if(!fEncryptMe )
            {
                strncat(buf, "\n", 1);
            }
        }

        unsigned length = strlen(buf);

#ifdef PLASMA_EXTERNAL_RELEASE
        // Print to a separate line, since we have to encrypt it
        if( fEncryptMe )
        {
            // Encrypt!
            plStatusEncrypt::Encrypt( (UInt8 *)buf, hint );

            // xor the line length, then write it out, then the line, no terminating character
            UInt16 encrySize = length ^ ((UInt16)fSize);

            // try the first write, if it fails reopen and try again
            int err;
            err = fputc( encrySize & 0xff, fFileHandle );
            if (err == EOF && IReOpen())
            {
                err = fputc( encrySize & 0xff, fFileHandle );
            }

            if (err != EOF)
            {
                fSize++; // inc for the last putc
                err = fputc( encrySize >> 8, fFileHandle );
                if (err != EOF)
                    fSize++; // inc for the last putc
                err = fwrite( buf, 1, length, fFileHandle );
                fSize += err;   
                
                if (!(fFlags & kNonFlushedLog))
                    fflush(fFileHandle);
            }
            else
            {
                ret = false;
            }
        }
        else
#endif
        {
            int err;
            err = fwrite(buf,1,length,fFileHandle);
            ret = ( ferror( fFileHandle )==0 );

            if ( ret )
            {
                fSize += err;
                if (!(fFlags & kNonFlushedLog))
                    fflush(fFileHandle);
            }
        }

        if ( fSize>=kMaxFileSize )
        {
            plStatusLogMgr::GetInstance().BounceLogs();
        }

    }

    if ( fFlags & kDebugOutput )
    {
#if HS_BUILD_FOR_WIN32
#ifndef PLASMA_EXTERNAL_RELEASE
        std::string str;
        xtl::format( str, "%.*s\n", count, line );
        OutputDebugString( str.c_str() );
#endif
#else
        fprintf( stderr, "%.*s\n", count, line );
#endif
    }

    if ( fFlags & kStdout )
    {
        fprintf( stdout, "%.*s\n", count, line );
    }

    return ret;
}