// Copyright (c) 2007-2009 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:

// ULogger commands

// 

//

/**

 @file

 @internalTechnology

 @prototype

*/

#include "uloggercommands.h"

#include "uloggershared.h"

using namespace Ulogger;

CCommand::CCommand(MCommandImpl* aCommandImpl)

: iCommandImpl(aCommandImpl)

	{

	}

EXPORT_C CCommand::~CCommand()

	{

	iCommandsLookup.Close();

	}

EXPORT_C CCommand* CCommand::NewL(MCommandImpl* aCommandImpl)

	{

	CCommand* obj = CCommand::NewLC(aCommandImpl);

	CleanupStack::Pop( obj );

	return obj;

	}

EXPORT_C CCommand* CCommand::NewLC(MCommandImpl* aCommandImpl)

	{

	CCommand* obj = new (ELeave) CCommand(aCommandImpl);

	CleanupStack::PushL( obj );

	obj->ConstructL();

	return obj;

	}

EXPORT_C void CCommand::ConstructL()

	{

	iVerbose = EFalse;

	//fill the lookup table

	//two command matters

	iCommandsLookup.Append( TCommandLookup(&KCmdEnable, &KCmdPrimaryFilter, ESetPrimaryFilter) ); // -ef 

	iCommandsLookup.Append( TCommandLookup(&KCmdEnable, &KCmdSecondaryFilter, ESetSecondaryFilter) ); // -es 

	iCommandsLookup.Append( TCommandLookup(&KCmdEnable, &KCmdSecondaryFilterToggle, EEnableSecondaryFiltering) ); // -eS 

	iCommandsLookup.Append( TCommandLookup(&KCmdDisable, &KCmdSecondaryFilterToggle, EDisableSecondaryFiltering) ); // -dS 

	iCommandsLookup.Append( TCommandLookup(&KCmdDisable, &KCmdPluginConfigurations, ERemovePluginSettings) ); // -dc 

	iCommandsLookup.Append( TCommandLookup(&KCmdList, &KCmdOutputPlugin, EGetInstalledPlugins) ); // -lo 

	iCommandsLookup.Append( TCommandLookup(&KCmdList, &KCmdPluginConfigurations, EGetPluginSettings) ); // -lc 

	iCommandsLookup.Append( TCommandLookup(&KCmdList, &KCmdPrimaryFilter, EGetPrimaryFilters) ); // -lf 

	iCommandsLookup.Append( TCommandLookup(&KCmdList, &KCmdSecondaryFilter, EGetSecondaryFilters) ); // -ls 

	iCommandsLookup.Append( TCommandLookup(&KCmdList, &KCmdSecondaryFilterToggle, EGetSecondaryFiltering) ); // -lS 

	iCommandsLookup.Append( TCommandLookup(&KCmdEnable, &KCmdBuffer, EResizeTraceBuffer) ); // -eb 

	iCommandsLookup.Append( TCommandLookup(&KCmdList, &KCmdBuffer, EGetTraceBufferSize) ); // -lb 

	iCommandsLookup.Append( TCommandLookup(&KCmdEnable, &KCmdBufferMode, ESetBufferMode) ); // -em

	iCommandsLookup.Append( TCommandLookup(&KCmdList, &KCmdBufferMode, EGetBufferMode) ); // -lm 

	iCommandsLookup.Append( TCommandLookup(&KCmdEnable, &KCmdNotification, ESetDataNotificationSize) );// -en

	iCommandsLookup.Append( TCommandLookup(&KCmdList, &KCmdNotification, EGetDataNotificationSize) ); // -ln 

	iCommandsLookup.Append( TCommandLookup(&KCmdDisable, &KCmdPrimaryFilter, ERemovePrimaryFilter) ); // -df 

	iCommandsLookup.Append( TCommandLookup(&KCmdDisable, &KCmdSecondaryFilter, ERemoveSecondaryFilter) ); // -ds 

	iCommandsLookup.Append( TCommandLookup(&KCmdEnable, &KCmdPluginConfigurations, ESetPluginSettings) ); // -ec 

	iCommandsLookup.Append( TCommandLookup(&KCmdEnable, &KCmdOutputPlugin, ESetActivePlugin) ); // -eo 

	iCommandsLookup.Append( TCommandLookup(&KCmdEnable, &KCmdInputPlugin, ESetActiveInputPlugin) ); // -ei 

	iCommandsLookup.Append( TCommandLookup(&KCmdDisable, &KCmdInputPlugin, EDeactivateInputPlugin) ); // -di 

	iCommandsLookup.Append( TCommandLookup(&KCmdList, &KCmdInputPlugin, EGetInputPlugins) ); // -li 

	//only main command matters

	iCommandsLookup.Append( TCommandLookup(&KCmdStart, &KNullDesC, EStart) ); // -r 

	iCommandsLookup.Append( TCommandLookup(&KCmdStop, &KNullDesC, EStop) ); // -q 

	iCommandsLookup.Append( TCommandLookup(&KCmdRestart, &KNullDesC, ERestart) ); // -t   	

	iCommandsLookup.Append( TCommandLookup(&KCmdOutputPlugin, &KNullDesC, EGetActivePlugin) ); // -o 

	iCommandsLookup.Append( TCommandLookup(&KCmdInputPlugin, &KNullDesC, EGetActiveInputPlugin) ); // -i 

	iCommandsLookup.Append( TCommandLookup(&KCmdHelp, &KNullDesC, EHelp) ); // -h 

	iCommandsLookup.Append( TCommandLookup(&KCmdMan, &KNullDesC, EManPage) ); // -H 

	iCommandsLookup.Append( TCommandLookup(&KCmdVersion, &KNullDesC, EVersion) ); // -version 

	}

/**

This function parses commands given as a parameter and generates TCommand value.

The function is responsible also for triggering event for MCommandImpl

@param aArgs array of arguments to parse

@return KErrNone if commands were parsed successfully and event was triggered, system wide error code otherwise

 */

EXPORT_C TInt CCommand::HandleCommandL(const RArray<TPtrC>& aArgs)

	{	

	TBool optionsConsumed = EFalse;

	RArray<TPtrC> commands;

	CleanupClosePushL( commands );

	RBuf command;

	CleanupClosePushL(command);

	TInt maxSize=2;

	for(TInt k=0; k<aArgs.Count(); ++k) //calculate max command length

		maxSize += aArgs[k].Length();

	User::LeaveIfError(command.Create(maxSize));

	for(TInt i=0; i<aArgs.Count(); ++i)

		{

		TPtrC argPtr(aArgs[i]);

		//the 'version' command is the special case

		if(!argPtr.Mid(1).Compare(KCmdVersion))

			{

			TPtrC ptr(argPtr.Mid(1));

			commands.AppendL(ptr);

			continue;

			}

		//check if we have to parse combined commands (like -ca)

		//other arguments are added to new array for further processing

		TBuf<1> cmdChecker;

		cmdChecker.Copy( argPtr.Mid(0,1) );

		if(!cmdChecker.Compare(KCmdIndicator) && !optionsConsumed)

			{			

			//if there is option 'v' (verbose), this option shoul be removed

			//desc:

			//command data format: 'command param1 param2 paramN'

			//where:

			//command: ia string with commands letters, for example: 'lf', 'esv'

			//paramN: is parameter string, for example 'uloggerserialplugin'

			//array example: 'ec uloggerserialplugin output_port 3'

			for(TInt k=1; k<argPtr.Length(); ++k)

				{

				TPtrC ptr(argPtr.Mid(k,1));

				if(!ptr.Compare(KCmdVerboseMode))

					iVerbose = ETrue;

				else

					command.AppendFormat(_L("%S"), &ptr);

				}

			//put command as a first element in array

			if(commands.Count() > 0)

				{

				commands.Remove(0);

				User::LeaveIfError(commands.Insert(command, 0));

				}

			else

				commands.AppendL(command);

			optionsConsumed = ETrue;

			}

		else

			commands.AppendL(argPtr);

		}

	TInt errCode = PrepareCommandL( commands );	

	CleanupStack::PopAndDestroy(2); //command, commands

	return errCode;

	}

/** This method uses lookup table to translate user readable commands into TCommand value.

@param aArgs Array of arguments.

@return KErrNone if command was preapared correctly and system wide error code otherwise

 */

TInt CCommand::PrepareCommandL(RArray<TPtrC>& aArgs)

	{

	TInt i;

	TInt lookupArraySize = iCommandsLookup.Count();

	if(aArgs.Count() == 0)

		return iCommandImpl->DoCommandL(EUnknown, aArgs);

	//first elements contains command letters

	TPtrC cmd(aArgs[0]);

	if(cmd.Length() <= KMaxNumberOfLettersInCommand) //we want precise command 

		{

		//check two arguments - 1st pass

		for(i=0; i<lookupArraySize; ++i)

			{

			if(cmd.Length() == 2) 

				if(!iCommandsLookup[i].iMainCommand->Compare(cmd.Mid(0,1)))

					if(!iCommandsLookup[i].iSubCommand->Compare(cmd.Mid(1,1)))

						{

						aArgs.Remove(0);

						return iCommandImpl->DoCommandL(iCommandsLookup[i].iCommand, aArgs);

						}

			}

		//check two arguments - 2nd pass

		for(i=0; i<lookupArraySize; ++i)

			{

			//check one argument

			if(cmd.Length() == 1) 

				if(!iCommandsLookup[i].iMainCommand->Compare(cmd.Mid(0,1)))

					{

					//make sure that none of the 'two letters commands' will not be called

					if(iCommandsLookup[i].iSubCommand->Compare(KNullDesC))

						continue;

					aArgs.Remove(0);

					return iCommandImpl->DoCommandL(iCommandsLookup[i].iCommand, aArgs);

					}

			}

		}

	return iCommandImpl->DoCommandL(EUnknown, aArgs);

	}