/*

* Copyright (c) 2010 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:  Media Video harvester plugin implementation

*

*/

//  Include Files

#include "videoplugin.h" //CVideoPlugin

#include <e32base.h>

#include "harvesterserverlogger.h"

#include "common.h"

#include "csearchdocument.h"

#include "ccpixindexer.h"

#include "mdeharvester.h"

#include "mdeobjectqueuemanager.h"

#include "mdsmediamonitor.h"

#include "mdssessionobjectutils.h"

#include "cpixmediavideodoc.h"

#include "cpixindexerutils.h"

#include "mmcmonitor.h"

#include "cpixmdedbmanager.h"

#include "mdsitementity.h"

#include "OstTraceDefinitions.h"

#ifdef OST_TRACE_COMPILER_IN_USE

#include "videopluginTraces.h"

#endif

//Constants

_LIT(KPathTrailer, "\\root\\media\\video");

#define MEDIA_QBASEAPPCLASS   "@0:root media video"

#define LMEDIA_QBASEAPPCLASS  L"@0:root media video"

#define MEDIAAPPCLASS   "root media video"

#define LMEDIAAPPCLASS  L"root media video"

#define MEDIAGENERICAPPCLASS   ":root media video"

#define LMEDIAGENERICAPPCLASS  L":root media video"

#define DATABASEPATH           "\\root\\media\\video"

#define LDATABASEPATH           "\\root\\media\\video"

//Member Functions

CVideoPlugin* CVideoPlugin::NewL()

    {

    return self;

    }

CVideoPlugin::CVideoPlugin()

    {

#ifdef __PERFORMANCE_DATA

    count = 0;

#endif

    //No implementation required.    

    }

CVideoPlugin::~CVideoPlugin()

    {    

    delete iMdeHarvester;

    delete iMdsMonitor;

    delete iObjectJobQueueManager;

    delete iMdsUtils;

    delete iVideoDocument;

    if ( iIndexerUtil )

      TRAP_IGNORE(iIndexerUtil->UnMountAllDrivesL(_L(MEDIAGENERICAPPCLASS)));

    delete iIndexerUtil;

    delete iMMcMonitor;

    delete iDBManager;

    delete iMdsItem;

    }

void CVideoPlugin::StartPluginL()

    {

    OstTraceFunctionEntry0( CVIDEOPLUGIN_STARTPLUGINL_ENTRY );

    //Define the basic application class 

    CPIXLOGSTRING("CVideoPlugin::StartPluginL");

    iIndexerUtil = CCPixIndexerUtils::NewL( iSearchSession );

    TBuf<KMaxFileName> databasePathTemp;

    databasePathTemp.Append( KPathTrailer );

    iIndexerUtil->MountAllAvailableDriveL( _L(MEDIAGENERICAPPCLASS), databasePathTemp );

    // Instansiate harvesting and monitering

    iMdsUtils = CMdsSessionObjectUtils::NewL();

    iMdsUtils->InitializeL();

    iMdeHarvester = CMdeHarvester::NewL( iMdsUtils->GetSession(), this,

                                         iObjectJobQueueManager );   

    iMdsMonitor = CMdsMediaMonitor::NewL( iMdsUtils->GetSession(), iObjectJobQueueManager );

    iMMcMonitor = CMMCMonitorUtil::NewL( this );//Observer is self

    iMMcMonitor->StartMonitoring();

    //start monitoring video items

    iMdsMonitor->StartMonitoringL( MdeConstants::Video::KVideoObject );

    iVideoDocument = CCPIXMediaVideoDoc::NewL(); //Doc fetcher

    // Start harvester for this plugin

    iObserver->AddHarvestingQueue(this, _L(MEDIA_QBASEAPPCLASS) );

    TUid uidOfPlugin = {0x20029ABA};

    iDBManager = CCPIXMDEDbManager::NewL(uidOfPlugin);

    iMdsItem = CMDSEntity::NewL();

    OstTraceFunctionExit0( CVIDEOPLUGIN_STARTPLUGINL_EXIT );

    }

void CVideoPlugin::StartHarvestingL( const TDesC& /*aMedia*/ )

    {

    OstTraceFunctionEntry0( CVIDEOPLUGIN_STARTHARVESTINGL_ENTRY );

    CPIXLOGSTRING("CVideoPlugin::StartHarvestingL");

    iDBManager->ResetL();

    iIndexerUtil->ResetAllL();

    //start video harvesting

#ifdef __PERFORMANCE_DATA

    iStartTime.UniversalTime();

#endif

    iMdeHarvester->DoHarvesetL( MdeConstants::Video::KVideoObject );      

    OstTraceFunctionExit0( CVIDEOPLUGIN_STARTHARVESTINGL_EXIT );

    }

void CVideoPlugin::HarvestingCompletedL()

    {

    OstTraceFunctionEntry0( CVIDEOPLUGIN_HARVESTINGCOMPLETEDL_ENTRY );

    CPIXLOGSTRING("CVideoPlugin::HarvestingCompletedL");

#ifdef __PERFORMANCE_DATA

    UpdatePerformaceDataL();

#endif

    iObserver->HarvestingCompleted(this, _L(MEDIA_QBASEAPPCLASS), KErrNone);    

    OstTraceFunctionExit0( CVIDEOPLUGIN_HARVESTINGCOMPLETEDL_EXIT );

    }

//handle MMC event for the Drive

void CVideoPlugin::HandleMMCEventL(const TDriveNumber aDrive,const TBool aMMCInsertRemoval)

    {

    TBuf<KMaxFileName> databasePathTemp;

    databasePathTemp.Append(KPathTrailer);

    if(aMMCInsertRemoval) //MMC inserted

        {        

        iIndexerUtil->MountDriveL(aDrive,_L(MEDIAGENERICAPPCLASS),databasePathTemp);        

        //iIndexerUtil->GetIndexerFromDrive(aDrive)->ResetL();

        }

    else

        {

        //MMC is removed but we can not reset index here as Media physically not avilable so

        // we have to do at the time of insertion only

        //Unmount drive and also reset the index as we anyhow has to reindex on insertion back 

        iIndexerUtil->UnMountDriveL(aDrive,_L(MEDIAGENERICAPPCLASS),ETrue);

        }

    }

void CVideoPlugin::HandleMdeItemL( TItemId aObjId, TCPixActionType aActionType)

    {

    //Get the object from object utils and get the CPIX document and add delete or update

    OstTrace1( TRACE_NORMAL, CVIDEOPLUGIN_HANDLEMDEITEML, "CVideoPlugin::HandleMdeItemL;aObjId=%d", aObjId );

    CPIXLOGSTRING2("CVideoPlugin::HandleMdeItemL(): aObjId = %d ", aObjId );

    // creating CSearchDocument object with unique ID for this application

    TBuf<KMaxFileName> docid_str;

    if (aActionType == ECPixAddAction || aActionType == ECPixUpdateAction )

        {

        //To Improve performance check here only before Getobject if it is Add event

        //and we already have in our database just return in case of update move forward

        if(iDBManager->IsAlreadyExistL(aObjId) && aActionType == ECPixAddAction)//Avoid reharvesting

           {

           OstTrace0( TRACE_NORMAL, DUP1_CVIDEOPLUGIN_HANDLEMDEITEML, "CVideoPlugin::HandleMdeItemL(): Already harvested returning" );

           CPIXLOGSTRING("CVideoPlugin::HandleMdeItemL(): Already harvested returning");

           return;

           }

        CMdEObject& object= iMdsUtils->GetObjectL( aObjId,MdeConstants::Video::KVideoObject );        

        CMdENamespaceDef& defaultNamespaceDef = iMdsUtils->GetSession()->GetDefaultNamespaceDefL();        

        CMdEObjectDef& videoObjDef = defaultNamespaceDef.GetObjectDefL( MdeConstants::Video::KVideoObject );        

        CSearchDocument* index_item = iVideoDocument->GetCpixDocumentL(object,_L(MEDIAAPPCLASS),videoObjDef);

        iIndexer = iIndexerUtil->GetIndexerFromMediaId(object.MediaId());

        if (!iIndexer)

            {

            delete index_item;

            OstTrace0( TRACE_NORMAL, DUP2_CVIDEOPLUGIN_HANDLEMDEITEML, "CVideoPlugin::HandleMdeItemL(): Indexer not found" );

            CPIXLOGSTRING("CVideoPlugin::HandleMdeItemL(): Indexer not found");

            return;

            }

        // Send for indexing

        if (aActionType == ECPixAddAction)

            {

#ifdef __PERFORMANCE_DATA

            ++count;

#endif

            OstTrace0( TRACE_NORMAL, DUP3_CVIDEOPLUGIN_HANDLEMDEITEML, "CVideoPlugin::HandleMdeItemL(): Indexer found calling AddL" );

            CPIXLOGSTRING("CVideoPlugin::HandleMdeItemL(): Indexer found calling AddL");

            //First check if it already exist in database

            TRAPD(err, iIndexer->UpdateL(*index_item)); //Always Update to avoid reharvesting

            if (err == KErrNone)

                {

                //Add entity to database for later use

                iMdsItem->Reset();//reset existing values

                iMdsItem->Setkey(aObjId);

                iMdsItem->SetUri(iVideoDocument->GetUri());//Use the Absolute URI

                TDriveNumber drive;

                iIndexerUtil->GetDriveFromMediaId(object.MediaId(),drive);

                iMdsItem->SetDrive(drive);

                iDBManager->AddL(aObjId,*iMdsItem);//Add to SyncDB

                OstTrace0( TRACE_NORMAL, DUP4_CVIDEOPLUGIN_HANDLEMDEITEML, "CVideoPlugin::HandleMdeItemL(): Added." );

                CPIXLOGSTRING("CVideoPlugin::HandleMdeItemL(): Added.");

                }

            else

                {

                OstTrace1( TRACE_NORMAL, DUP5_CVIDEOPLUGIN_HANDLEMDEITEML, "CVideoPlugin::HandleMdeItemL;Error %d in adding", err );

                CPIXLOGSTRING2("CVideoPlugin::HandleMdeItemL(): Error %d in adding.", err);

                }           

            }

        else

            {

            //If DocID for e.g \video\something.3gpp itself changes the we have to compare

            //existing URI with new one and Remove that first and Update to avoid 

            //Duplicate entries

            iMdsItem->Reset();//reset existing values

            TRAPD(err, iDBManager->GetItemL(aObjId,*iMdsItem));

            if(err == KErrNone)

                {

                //Get the drivenumber from the syncDB to delete the appropriate docId 

                //in case an item is moved to different drive, delete from the old drive first and later update.

                //comparing the absolute paths along with the root drives

                if(iMdsItem->GetPath().Compare(object.Uri()) != 0)

                    {

                    CCPixIndexer *tempIndexer;                

                    tempIndexer = iIndexerUtil->GetIndexerFromDrive(iMdsItem->DriveNumber());

                    tempIndexer->DeleteL(iMdsItem->Uri());

                    OstTrace0( TRACE_NORMAL, DUP6_CVIDEOPLUGIN_HANDLEMDEITEML, "CVideoPlugin::HandleMdeItemL(): Deleted existing URI for update" );

                    CPIXLOGSTRING("CVideoPlugin::HandleMdeItemL(): Deleted existing URI for update");

                    }

                TRAPD(error, iIndexer->UpdateL(*index_item));

                if (error == KErrNone)

                    {

                    //Add as new

                    iMdsItem->Reset();//reset existing values

                    TDriveNumber drive;

                    iIndexerUtil->GetDriveFromMediaId(object.MediaId(),drive);

                    iMdsItem->Set(aObjId,iVideoDocument->GetUri(),drive);

                    iDBManager->UpdateL(aObjId,*iMdsItem);//Add to SyncDB

                    OstTrace0( TRACE_NORMAL, DUP7_CVIDEOPLUGIN_HANDLEMDEITEML, "CVideoPlugin::HandleMdeItemL(): Updated." );

                    CPIXLOGSTRING("CVideoPlugin::HandleMdeItemL(): Updated.");

                    }

                else

                    {

                    OstTrace1( TRACE_NORMAL, DUP8_CVIDEOPLUGIN_HANDLEMDEITEML, "CVideoPlugin::HandleMdeItemL;Error %d in updating", err );

                    CPIXLOGSTRING2("CVideoPlugin::HandleMdeItemL(): Error %d in updating.", error);

                    }   

                }

            //If a media item is added when downloading or streaming begins, add event is surpassed

            //by update or delete event because of delay introduced on monitered object by objectqueue manager

            //So add the Item first, when GetItemL() leaves with item not found

            else if(err == KErrNotFound)

                {

                TRAPD(error, iIndexer->UpdateL(*index_item));

                if (error == KErrNone)

                    {

                    //Add entity to database for later use

                    iMdsItem->Reset();//reset existing values

                    iMdsItem->Setkey(aObjId);

                    iMdsItem->SetUri(iVideoDocument->GetUri());//Use the Absolute URI

                    TDriveNumber drive;

                    iIndexerUtil->GetDriveFromMediaId(object.MediaId(),drive);

                    iMdsItem->SetDrive(drive);

                    iDBManager->AddL(aObjId,*iMdsItem);//Add to SyncDB

                    OstTrace0( TRACE_NORMAL, DUP9_CVIDEOPLUGIN_HANDLEMDEITEML, "CVideoPlugin::HandleMdeItemL(): Added Item before Update." );

                    CPIXLOGSTRING("CVideoPlugin::HandleMdeItemL(): Added Item before Update.");

                    }

                }                    

            }

        delete index_item;

        iIndexer = NULL;        

        }

    else if (aActionType == ECPixRemoveAction)

            {

            // Remove the document

            //Get the Item from SyncDB for removed Item

            iMdsItem->Reset();//reset existing values

            TRAPD(error, iDBManager->GetItemL(aObjId,*iMdsItem));

            if (error == KErrNone)

                {

                iIndexer = iIndexerUtil->GetIndexerFromDrive(iMdsItem->DriveNumber());//Get Indexer from drive

                if(iIndexer) //If indexer found delete

                    {

                    docid_str.Copy(iMdsItem->Uri());

                    TRAPD(err, iIndexer->DeleteL(docid_str));//Delete it

                    if (err == KErrNone)

                        {

                        OstTrace0( TRACE_NORMAL, DUP10_CVIDEOPLUGIN_HANDLEMDEITEML, "CVideoPlugin::HandleMdeItemL(): Deleted." );

                        CPIXLOGSTRING("CVideoPlugin::HandleMdeItemL(): Deleted.");

                        }

                    else

                        {

                        OstTrace1( TRACE_NORMAL, DUP11_CVIDEOPLUGIN_HANDLEMDEITEML, "CVideoPlugin::HandleMdeItemL;Error %d in deleting", err );

                        CPIXLOGSTRING2("CVideoPlugin::HandleMdeItemL(): Error %d in deleting.", err);

                        }

                    }

                //delete entry from database

                iDBManager->RemoveL(iMdsItem->Key());

                }

            iIndexer = NULL;//Assign to null not pointing to any memory

            }    

    }

#ifdef __PERFORMANCE_DATA

void CVideoPlugin::UpdateLogL()

    {

    UpdatePerformaceDataL();

    }

void CVideoPlugin::UpdatePerformaceDataL()

    {

    TTime now;

    iCompleteTime.UniversalTime();

    TTimeIntervalMicroSeconds timeDiff = iCompleteTime.MicroSecondsFrom(iStartTime);

    RFs fileSession;

    RFile perfFile;

    User::LeaveIfError( fileSession.Connect () );

    /* Open file if it exists, otherwise create it and write content in it */

        if(perfFile.Open(fileSession, _L("c:\\data\\VideoPerf.txt"), EFileWrite))

                   User::LeaveIfError(perfFile.Create (fileSession, _L("c:\\data\\VideoPerf.txt"), EFileWrite));

    HBufC8 *heap = HBufC8::NewL(100);

    TPtr8 ptr = heap->Des();

    now.HomeTime();

    TBuf<50> timeString;             

    _LIT(KOwnTimeFormat,"%:0%H%:1%T%:2%S");

    now.FormatL(timeString,KOwnTimeFormat);

    ptr.AppendNum(now.DateTime().Day());

    ptr.Append(_L("/"));

    ptr.AppendNum(now.DateTime().Month());

    ptr.Append(_L("/"));

    ptr.AppendNum(now.DateTime().Year());

    ptr.Append(_L(":"));

    ptr.Append(timeString);

    ptr.Append(_L("--"));

    ptr.AppendNum(count);

    ptr.Append( _L(" :Time took for Harvesting Video is : "));

    ptr.AppendNum(timeDiff.Int64()/1000) ;

    ptr.Append(_L(" MilliSeonds \n"));

    TInt myInt = 0;

    perfFile.Seek(ESeekEnd,myInt);

    perfFile.Write (ptr);

    perfFile.Close ();

    fileSession.Close ();

    delete heap;

    }

#endif