/*

* Copyright (c) 2007 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:  Implementation of COutOfDiskMonitor class.

*

*/

// SYSTEM INCLUDES

#include <driveinfo.h>

#include <centralrepository.h>

// USER INCLUDES

#include "outofdiskmonitor.h"

#include "outofdisknotifyobserver.h"

#include "OodTraces.h"

#include "UiklafInternalCRKeys.h"

#include "outofdiskpsobserver.h"

#include "UiklafInternalCRKeys.h"

// CONSTANTS

// ============================ MEMBER FUNCTIONS ===============================

// ---------------------------------------------------------

//

// ---------------------------------------------------------

//

COutOfDiskMonitor* COutOfDiskMonitor::NewL(MShutdownEventObserver& aObserver)

    { // static

    TRACES("COutOfDiskMonitor::NewL");

    COutOfDiskMonitor* self = new(ELeave) COutOfDiskMonitor(aObserver);

    CleanupStack::PushL(self);

    self->ConstructL();

    CleanupStack::Pop(self);

    return self;

    }

// ---------------------------------------------------------

//

// ---------------------------------------------------------

//

COutOfDiskMonitor::~COutOfDiskMonitor()

    {

    TRACES("COutOfDiskMonitor::~COutOfDiskMonitor");

    delete iOutOfDiskNotifyObserver;

    delete iOutOfDiskGlobalNote;    

    iResourceFile.Close();

    iFs.Close();

    for( TInt i = EDriveA; i <= EDriveZ; i++ )

        {

            if( iDriveStatus[i].iTimer )

            {

            iDriveStatus[i].iTimer->Cancel();

            delete iDriveStatus[i].iTimer;

            }

        }

    TRACES("COutOfDiskMonitor::~COutOfDiskMonitor: End");

    }

// ---------------------------------------------------------

//

// ---------------------------------------------------------

//

COutOfDiskMonitor::COutOfDiskMonitor(MShutdownEventObserver& aObserver)

    : CLafShutdownManagerBase(aObserver),

      iGlobalNotesAllowed(EFalse)

    {

    TRACES("COutOfDiskMonitor::COutOfDiskMonitor");

    }

// ---------------------------------------------------------

//

// ---------------------------------------------------------

//

void COutOfDiskMonitor::ConstructL()

    {

    TRACES("COutOfDiskMonitor::ConstructL"); 

    TRACES("COutOfDiskMonitor::ConstructL: Connect to FS");

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

    DriveInfo::GetDefaultDrive( DriveInfo::EDefaultPhoneMemory, iDefaultPhoneMemory );

    DriveInfo::GetDefaultDrive( DriveInfo::EDefaultMassStorage, iDefaultMassStorage );

    TRACES2("COutOfDiskMonitor::ConstructL: Default Phone mem %c, default mass mem %c"

                    ,iDefaultPhoneMemory+'A',iDefaultMassStorage+'A');      

    iOutOfDiskGlobalNote = COutOfDiskGlobalNote::NewL( this, iFs );

    for( TInt i = EDriveA; i <= EDriveZ; i++ )

        {

        SaveDriveStatus(i, DISK_SPACE_OK, ETrue);

        }

    iOutOfDiskPSObserver = COutOfDiskPSObserver::NewL( this );

    CRepository* repository( NULL );

    TInt warningThreshold(0);

    TInt criticalThreshold(0);

    TRAPD( err, repository = CRepository::NewL( KCRUidUiklaf ) );

    if ( err == KErrNone )

        {

        err = repository->Get(KUikOODDiskFreeSpaceWarningNoteLevel, warningThreshold);

        err = repository->Get(KUikOODDiskCriticalThreshold, criticalThreshold);

        }

    delete repository;

    iOODWarningThreshold = warningThreshold;

    iOODCriticalThreshold = criticalThreshold;

	TRACES1("COutOfDiskMonitor::ConstructL: Warning threshold: %d percent",iOODWarningThreshold);

    TRACES1("COutOfDiskMonitor::ConstructL: Critical threshold: %ld bytes",iOODCriticalThreshold);

    iOutOfDiskNotifyObserver = COutOfDiskNotifyObserver::NewL( this, iFs );

    TRACES("COutOfDiskMonitor::ConstructL: End");

    }

// ---------------------------------------------------------

// 

// 

// ---------------------------------------------------------

//

void COutOfDiskMonitor::ShowGlobalQueryIfNeededL()

    {

    TRACES("COutOfDiskMonitor::ShowGlobalQueryIfNeededL");

    TInt drive = GetTopPriorityDrive();

    if (drive != KErrNotFound)

        {

        iOutOfDiskGlobalNote->ShowGlobalQueryL(iDriveStatus[drive].iStatus, drive);

        }

    TRACES("COutOfDiskMonitor::ShowGlobalQueryIfNeededL: End");

    }

// ---------------------------------------------------------

//

// ---------------------------------------------------------

//

TInt COutOfDiskMonitor::DoStopTimingL( TAny* aParam )

    {

    TAfterNoteTimer* p = reinterpret_cast<TAfterNoteTimer*>( aParam );

    COutOfDiskMonitor* oodm = STATIC_CAST( COutOfDiskMonitor*, p->iOODM ); // cast

    TBool ret =  oodm->ResetDisplayedStatus(p->iDrive); // call non-static function	

    if ( ret )

        {

        delete p;

        p = NULL;

        }

    return KErrNone;

    }

// ---------------------------------------------------------

//

// ---------------------------------------------------------

//

TInt COutOfDiskMonitor::GetDriveStatus(TInt aDrive)

    {

    TRACES("COutOfDiskMonitor::GetDriveStatus");

    TInt64 freeSpace(0);

    TInt state(DISK_SPACE_OK);

    TVolumeInfo volInfo;

    TInt ret( iFs.Volume( volInfo, aDrive ) );

    if ( ret == KErrNone )

        {

        freeSpace = volInfo.iFree;

        TRACES1("COutOfDiskMonitor::GetDriveStatus: Free space: %ld",freeSpace);           

        }

    else

        {

        TRACES1("COutOfDiskMonitor::GetDriveStatus: End: Returns %d",state);

        return state;

        }

    if (freeSpace < GetThreshold(DISK_SPACE_WARNING, aDrive) && 

        freeSpace > GetThreshold(DISK_SPACE_CRITICAL, aDrive))

        {

        state = DISK_SPACE_WARNING;

        }    

    else if (freeSpace <= iOODCriticalThreshold)

        {

        state = DISK_SPACE_CRITICAL;

        }

    TRACES1("COutOfDiskMonitor::GetDriveStatus: End: Returns %d",state);

    return state;

    }

// ---------------------------------------------------------

//

// ---------------------------------------------------------

//

TInt64 COutOfDiskMonitor::GetThreshold(TInt aLevel, TInt aDrive)

    {

    TRACES2("COutOfDiskMonitor::GetThreshold(aLevel=%d, aDrive=%d)",aLevel, aDrive);

    TInt64 threshold(KErrNotFound);

    if (aLevel == DISK_SPACE_WARNING)

        {

		TVolumeInfo volInfo;

		TInt ret( iFs.Volume( volInfo, aDrive ) );

        TInt64 volSize(volInfo.iSize);

        TRACES1("COutOfDiskMonitor::GetThreshold: Volume size: %ld",volSize);		

		if ( ret == KErrNone )

			{

			TRACES1("COutOfDiskMonitor::GetThreshold: Warning threshold: Used disk space %d percent",iOODWarningThreshold);

			threshold = ((volSize*(100-iOODWarningThreshold))/100);		

			}

        }

    else if (aLevel == DISK_SPACE_CRITICAL)

        {

        threshold = iOODCriticalThreshold;

        }

    TRACES1("COutOfDiskMonitor::GetThreshold: End: Returns %ld",threshold);

    return threshold;

    }

// ---------------------------------------------------------

//

// ---------------------------------------------------------

//

void COutOfDiskMonitor::SaveDriveStatus(TInt aDrive, TInt aStatus, TBool aReset)

    {

    TRACES("COutOfDiskMonitor::SaveDriveStatus");

    if (aDrive == iDefaultPhoneMemory)

        {

        TRACES("COutOfDiskMonitor::SaveDriveStatus: Defult phone mem. Update PS");

        RProperty::Set( KPSUidUikon, KUikFFSFreeLevel, aStatus );

        }

    else if (aDrive == iDefaultMassStorage)

        {

        TRACES("COutOfDiskMonitor::SaveDriveStatus: Defult mass mem. Update PS");

        RProperty::Set( KPSUidUikon, KUikMmcFFSFreeLevel, aStatus );

        }

    iDriveStatus[aDrive].iStatus = aStatus;		

    if (aReset)

        {

        ResetDisplayedStatus(aDrive);

        }

    TRACES3("COutOfDiskMonitor::SaveDriveStatus: End: D: %c, S: %d D: %d",aDrive+'A',aStatus,

            iDriveStatus[aDrive].iDisplayed);

    }

// ---------------------------------------------------------

//

// ---------------------------------------------------------

//

TBool COutOfDiskMonitor::ResetDisplayedStatus(TInt aDrive, TBool aResetAll)

    {

    TRACES("COutOfDiskMonitor::ResetDisplayedStatus");

    if (aResetAll)

        {

        TRACES("COutOfDiskMonitor::ResetDisplayedStatus: Reset all drives");

        for( TInt i = EDriveA; i <= EDriveZ; i++ )

            {

            if (AllowedToReset(i))

                {

                iDriveStatus[i].iDisplayed = NULL;

                if (iDriveStatus[i].iTimer)

                    {

                    delete iDriveStatus[i].iTimer;

                    iDriveStatus[i].iTimer = NULL;

                    return ETrue;

                    }

                }

            }

        }

    else

        {

        TRACES1("COutOfDiskMonitor::ResetDisplayedStatus: Reset drive %c",aDrive+'A');

        if (AllowedToReset(aDrive))

            {

            iDriveStatus[aDrive].iDisplayed = NULL;

            if (iDriveStatus[aDrive].iTimer)

                {

                delete iDriveStatus[aDrive].iTimer;

                iDriveStatus[aDrive].iTimer = NULL;

                return ETrue;

                }

            }

        }

    return EFalse;

    }

// ---------------------------------------------------------

//

// ---------------------------------------------------------

//

TBool COutOfDiskMonitor::AllowedToReset(TInt aDrive)

    {

    TInt retVal(ETrue);

    TNoteInfo noteInfo(iOutOfDiskGlobalNote->GetNoteInfo());

    TRACES1("COutOfDiskMonitor::AllowedToReset: Drive %c",aDrive+'A');	

    if ((iOutOfDiskGlobalNote->NoteOnDisplay())&&

        (noteInfo.iDrive == aDrive))

        {

        if (noteInfo.iStatus == iDriveStatus[aDrive].iStatus)

            {

            TRACES("COutOfDiskMonitor::AllowedToReset: Same drive with same status already on display");

            retVal = EFalse;

            }

        else if ( noteInfo.iStatus == DISK_SPACE_CRITICAL && iDriveStatus[aDrive].iStatus == DISK_SPACE_WARNING )

            {

            TRACES("COutOfDiskMonitor::AllowedToReset: Same drive with worse status already on display");        

            retVal = EFalse;

            }

        }	

    TRACES1("COutOfDiskMonitor::AllowedToReset: %d",retVal);		

    return retVal;

    }

// ---------------------------------------------------------

//

// ---------------------------------------------------------

//

TInt COutOfDiskMonitor::GetTopPriorityDrive()

    {

    TRACES("COutOfDiskMonitor::GetTopPriorityDrive");

    // 0 - Critical Default Phone Memory

    // 1 - Critical Default Mass Storage

    // 2 - Critical other drives

    // 3 - Warning Default Phone Memory

    // 4 - Warning Default Mass Storage

    // 5 - Warning other drives

    TRACES2("COutOfDiskMonitor::GetTopPriorityDrive: DPM %d, %d",

        iDriveStatus[iDefaultPhoneMemory].iStatus, 

        iDriveStatus[iDefaultPhoneMemory].iDisplayed);

    TRACES2("COutOfDiskMonitor::GetTopPriorityDrive: DMS %d, %d",

        iDriveStatus[iDefaultMassStorage].iStatus, 

        iDriveStatus[iDefaultMassStorage].iDisplayed);

    if (iDriveStatus[iDefaultPhoneMemory].iStatus == DISK_SPACE_CRITICAL &&

        (iDriveStatus[iDefaultPhoneMemory].iDisplayed == NULL ||

        iDriveStatus[iDefaultPhoneMemory].iDisplayed == DISK_SPACE_WARNING)) 

        {

        TRACES2("COutOfDiskMonitor::GetTopPriorityDrive: Drive %c, status %d"

                        ,iDefaultPhoneMemory+'A',DISK_SPACE_CRITICAL);            

        return iDefaultPhoneMemory;

        }

    if (iDriveStatus[iDefaultMassStorage].iStatus == DISK_SPACE_CRITICAL &&

        iDriveStatus[iDefaultMassStorage].iDisplayed == NULL )

        {

        TRACES2("COutOfDiskMonitor::GetTopPriorityDrive: Drive %c, status %d"

                        ,iDefaultMassStorage+'A',DISK_SPACE_CRITICAL);

        return iDefaultMassStorage;

        }

    for( TInt i = EDriveA; i <= EDriveZ; i++ )

        {

        if (iDriveStatus[i].iStatus == DISK_SPACE_CRITICAL &&

            iDriveStatus[i].iDisplayed == NULL )

            {

            TRACES2("COutOfDiskMonitor::GetTopPriorityDrive: Drive %c, status %d"

                        ,i+'A',iDriveStatus[i].iStatus);                

            return i;

            }

        }

    if (iDriveStatus[iDefaultPhoneMemory].iStatus == DISK_SPACE_WARNING &&

        iDriveStatus[iDefaultPhoneMemory].iDisplayed == NULL )

        {

        TRACES2("COutOfDiskMonitor::GetTopPriorityDrive: Drive %c, status %d"

                        ,iDefaultPhoneMemory+'A',DISK_SPACE_WARNING);

        return iDefaultPhoneMemory;

        }

    if (iDriveStatus[iDefaultMassStorage].iStatus == DISK_SPACE_WARNING &&

        iDriveStatus[iDefaultMassStorage].iDisplayed == NULL )

        {

        TRACES2("COutOfDiskMonitor::GetTopPriorityDrive: Drive %c, status %d"

                        ,iDefaultMassStorage+'A',DISK_SPACE_WARNING);

        return iDefaultMassStorage;

        }

    for( TInt i = EDriveA; i <= EDriveZ; i++ )

        {

        if (iDriveStatus[i].iStatus == DISK_SPACE_WARNING &&

            iDriveStatus[i].iDisplayed == NULL )

            {

            TRACES2("COutOfDiskMonitor::GetTopPriorityDrive: Drive %c, status %d"

                        ,i+'A',iDriveStatus[i].iStatus);

            return i;

            }

        }

	TRACES("COutOfDiskMonitor::GetTopPriorityDrive: return KErrNotFound");

    return KErrNotFound;

    }

// ---------------------------------------------------------

//

// ---------------------------------------------------------

//

void COutOfDiskMonitor::SetAsDisplayedL(TInt aDrive, TInt aDriveStatus)

    {

    TRACES2("COutOfDiskMonitor::SetAsDisplayedL: Drive %d: DriveStatus %d",aDrive, aDriveStatus);

    iDriveStatus[aDrive].iDisplayed = aDriveStatus;

    // Don't show notes for same drive on a given time. Show only if state is following cases:

    // 1) State is going worse

    // 2) Autolock off

    // 3) The drive is unmounted and mounted again

    // 4) Phone is restarted

    if ( !iDriveStatus[aDrive].iTimer)

        {

        TAfterNoteTimer* p = 0;

        p = new (ELeave) TAfterNoteTimer;

        p->iOODM = this;

        p->iDrive = aDrive;

        iDriveStatus[aDrive].iTimer = CPeriodic::NewL( EPriorityNormal );

        iDriveStatus[aDrive].iTimer->Start( KDelayAfterNote, KDelayAfterNote, TCallBack( DoStopTimingL, p ) );

        }

    }

// ---------------------------------------------------------

//

// ---------------------------------------------------------

//

void COutOfDiskMonitor::SetGlobalNotesAllowed(TInt aValue)

    {

    TRACES1("COutOfDiskMonitor::SetGlobalNotesAllowed: Value %d",aValue);

    if (aValue)

        iGlobalNotesAllowed = ETrue;

    else

        iGlobalNotesAllowed = EFalse;

    }

// ---------------------------------------------------------

//

// ---------------------------------------------------------

//

TBool COutOfDiskMonitor::GetGlobalNotesAllowed()

    {

    TRACES1("COutOfDiskMonitor::GetGlobalNotesAllowed: Value %d",iGlobalNotesAllowed);

    return iGlobalNotesAllowed;

    }

// ---------------------------------------------------------

//

// ---------------------------------------------------------

//

TInt COutOfDiskMonitor::GetDefaultPhoneMemory()

    {

    TRACES("COutOfDiskMonitor::GetDefaultPhoneMemory");

    return iDefaultPhoneMemory;

    }

// ---------------------------------------------------------

//

// ---------------------------------------------------------

//

TInt COutOfDiskMonitor::GetDefaultMassStorage()

    {

    TRACES("COutOfDiskMonitor::GetDefaultMassStorage");

    return iDefaultMassStorage;

    }

// ---------------------------------------------------------

//

// ---------------------------------------------------------

//

TInt COutOfDiskMonitor::GetDefaultRomDrive()

    {

    TRACES("COutOfDiskMonitor::GetDefaultRomDrive");

    return iDefaultRomDrive;

    }

// End of file.