// Copyright (c) 2008-2009 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:

//

#include "config.h"

TConfig::TConfig()

	{	

	}

TBool TConfig::IsSupported(TInt aIpc)

	{

	TBool ret= ETrue;

	RFs	fs;

	RFile file;

	if( fs.Connect() == KErrNone)

		{

		if( file.Open(fs, KConfigFile, EFileRead) == KErrNone)

			{

			TBuf8<1000> buf;

			TBuf<100> temp;

			TInt bufLength=1000;

			TBuf<100> ipc;

			ipc.Num(aIpc);

			TBool commentFlag=EFalse;

			TBool valueFlag=EFalse;

			TBool storeFlag=EFalse;

			TBool valueRetrieved=EFalse;

			while (bufLength==1000)

				{

				file.Read(buf,1000);

				bufLength=buf.Length();

				for (TInt i=0; i<bufLength; ++i)

					{

					if(buf[i]=='#') 

						{

						commentFlag=ETrue;

						}

					else

						{

						if(!commentFlag)

							{//read the content	

							if(buf[i]!=' ' && buf[i]!='\n' && buf[i]!='\r' && buf[i]!='=' && buf[i]!='\t')

								{

								temp.Append(buf[i]);

								//end of the file and the file doesn't have a new line at the end

								if((i==bufLength-1 && bufLength<1000) && (valueFlag))

									valueRetrieved=ETrue;

								}

							else if ((valueFlag)&& buf[i]=='\r')

								{

								valueRetrieved=ETrue;	

								}

							else

								{

								storeFlag=ETrue;	

								}

							//storing a port names						

							if (storeFlag) 

								{

								if(temp.CompareC(ipc) == 0) valueFlag = ETrue;

								temp.Zero();

								storeFlag=EFalse;

								}

							else

							if(valueRetrieved)

								{

								temp.LowerCase();

								if (temp.CompareC(_L("notsupported")) == 0)

									{

									file.Close();

									fs.Close();

									return EFalse;

									}

								else

									{

									file.Close();

									fs.Close();

									return ETrue;

									}						

								}

							}

						else //skip the comment until \n

						if(buf[i]=='\n') 

							{

							commentFlag=EFalse;	

							}

						}

					}//for

				}//while

			}

		}

	file.Close();

	fs.Close();

	return ret;

	}

TInt TConfig::SetSupportedValue(TInt aIpc, TBool aSupported)

	{

	TInt ret=KErrGeneral;

	RFs	fs;

	RFile file;

	if(fs.Connect() == KErrNone)

		{

		if( file.Replace(fs, KConfigFile, EFileWrite) == KErrNone)

			{

			// write the content

			TBuf8<1000> buf;

			_LIT8(KTemp, "%d ");

			_LIT8(KSupported, "supported");

			_LIT8(KNotSupported, "notsupported");

			buf.Format(KTemp,aIpc);

			if (aSupported)

				{

				buf.Append(KSupported);

				}

			else

				{

				buf.Append(KNotSupported);

				}

			ret = file.Write(buf);

			}

		}

	file.Close();

	fs.Close();

	return ret;

	}

TInt TConfig::Reset()

	{

	TInt ret=KErrGeneral;

	RFs	fs;

	if(fs.Connect() == KErrNone)

		{

		ret = fs.Delete(KConfigFile);

		}

	fs.Close();

	return ret;

	}

/* static */

void TConfig::ResetThis(TAny* aThis)

	{

	(void)(static_cast<TConfig*>(aThis))->Reset();

	}

void TConfig::PushL()

	{

	CleanupStack::PushL(TCleanupItem(ResetThis, this));

	}