/*
 * Component Name: Headset Simulator
 * Author: Comarch S.A.
 * Version: 1.0
 * Copyright (c) 2010 Comarch S.A.
 *  
 * This Software is submitted by Comarch S.A. to Symbian Foundation Limited on 
 * the basis of the Member Contribution Agreement entered between Comarch S.A. 
 * and Symbian Foundation Limited on 5th June 2009 (“Agreement”) and may be 
 * used only in accordance with the terms and conditions of the Agreement. 
 * Any other usage, duplication or redistribution of this Software is not 
 * allowed without written permission of Comarch S.A.
 * 
 */

#include "hsremotecontroltools.h"
#include "debug.h"

CHsRemoteControlParser* CHsRemoteControlParser::NewL()
    {
    CHsRemoteControlParser *self = CHsRemoteControlParser::NewLC();
    CleanupStack::Pop( self );
    return self;
    }

CHsRemoteControlParser* CHsRemoteControlParser::NewLC()
    {
    CHsRemoteControlParser *self = new ( ELeave ) CHsRemoteControlParser;
    CleanupStack::PushL( self );
    self->ConstructL();
    return self;
    }

CHsRemoteControlParser::~CHsRemoteControlParser()
    {

    }

void CHsRemoteControlParser::ConstructL()
    {

    }

CHsRemoteControlParser::CHsRemoteControlParser()
    {

    }

void CHsRemoteControlParser::ParseL( const TDesC8 &aText,
        THsRemoteControlCommand &aCommand )
    {
    TRACE_FUNC_ENTRY
    if ( !IsPackageValid( aText ) )
        {
        User::Leave( KErrArgument );
        }

    TBuf8 <KHsRemoteControlPackageTypeMaxLength> typeBuf;
    TBuf8 <KHsRemoteControlPackageLength - KHsRemoteControlPackageTypeMaxLength>
            dataBuf;

    User::LeaveIfError( SplitPackage( aText, typeBuf, dataBuf ) );

    THsRemoteControlCommandType cmdType = EHsLast;
    User::LeaveIfError( RecognizeType( typeBuf, cmdType ) );

    THsControlCommandData cmdData( dataBuf );

    THsRemoteControlCommand tmpCommand( cmdData, cmdType );

    THsRemoteControlCommand::Copy( tmpCommand, aCommand );
    TRACE_FUNC_EXIT
    }

TBool CHsRemoteControlParser::IsPackageValid( const TDesC8 &aData )
    {
    return ( aData.Size() <= KHsRemoteControlPackageLength ) && ( aData.Find(
            KHsRemoteControllerPackageDelim ) != KErrNotFound );
    }

TInt CHsRemoteControlParser::SplitPackage( const TDesC8 &aData,
        TDes8 &aTypePart, TDes8 &aDataPart )
    {
    TRACE_FUNC_ENTRY
    TInt err = KErrNone;

    TInt delimPos = aData.Find( KHsRemoteControllerPackageDelim );
    if ( delimPos != KErrNotFound )
        {
        aTypePart.Copy( aData.Left( delimPos ) );
        aDataPart.Copy( aData.Right( aData.Length() - delimPos - 1 ) );
        }
    else
        {
        err = KErrNotFound;
        }

    TRACE_FUNC_EXIT
    return err;
    }

TInt CHsRemoteControlParser::RecognizeType( const TDesC8 &aTypePart,
        THsRemoteControlCommandType& aCommandType )
    {
    TRACE_FUNC_ENTRY
    TLex8 lex( aTypePart );
    TInt val;
    TInt err = lex.Val( val );

    aCommandType = (THsRemoteControlCommandType) val;
    TRACE_FUNC_EXIT
    return err;
    }