// Copyright (c) 2004-2009 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 <msvstore.h>

#include <f32file.h>

#include "CMsvAttachmentManager.h"

#include <mmsvstoremanager.h>

#include "CCopyOneFile.h"

#include "CMsvAttachmentRename.h"

#include "TMsvServerStoreManager.h"

const TUid KMsvEntryAttachmentInfo={0x10202D55};

_LIT(KTxtRenameLockFile, "_Rename_._");

CMsvAttachmentManager* CMsvAttachmentManager::NewL(CMsvStore& aStore, MMsvStoreManager& aStoreManager, const TMsvId aEntryId, RFs& aFs, TBool aReadOnly)

	{

	CMsvAttachmentManager* me = new(ELeave) CMsvAttachmentManager(aStore, aStoreManager, aEntryId, aFs, aReadOnly);

	CleanupStack::PushL(me);

	me->ConstructL();

	CleanupStack::Pop(me);

	return me;

	}

CMsvAttachmentManager::CMsvAttachmentManager(CMsvStore& aStore, MMsvStoreManager& aStoreManager, const TMsvId aEntryId, RFs& aFs, TBool aReadOnly)

	:CActive(EPriorityStandard), iStore(aStore), iStoreManager(aStoreManager), iEntryId(aEntryId), iFs(aFs), iReadOnly(aReadOnly)

	{

	CActiveScheduler::Add(this);

	}

void CMsvAttachmentManager::ConstructL()

	{

	// Only need the CCopyOneFile if attachment is not readonly

	if( !iReadOnly )

		iCopyOneFile = CCopyOneFile::NewL(iFs);

	// Populate the array of attachments from store file that contains all of the data

	RestoreL();

	}

CMsvAttachmentManager::~CMsvAttachmentManager()

	{

	Cancel();

	// if we have any added attachments, these must be deleted as they have not been committed

	TInt addedAttachmentCount = iAddedAttachments.Count();

	for( TInt ii=0; ii<addedAttachmentCount; ++ii )

		{

		iStoreManager.DeleteAttachment(iEntryId, *iAddedAttachments[ii]); // ignore return code

		}

	iAddedAttachments.ResetAndDestroy();

	iDeletedAttachments.ResetAndDestroy();	

	iAttachments.ResetAndDestroy();

	iRenamed.ResetAndDestroy();

	delete iCopyOneFile;

	}

void CMsvAttachmentManager::RunL()

	{

	User::LeaveIfError(iStatus.Int());

	User::RequestComplete(iReportStatus, KErrNone);

	}

void CMsvAttachmentManager::DoCancel()

	{

	__ASSERT_DEBUG(iCopyOneFile!=NULL, User::Invariant());

	if( iCopyOneFile->IsActive() )

		iCopyOneFile->Cancel();

	}

TInt CMsvAttachmentManager::RunError(TInt aError)

	{

	// Asynchronous request only occur when an attachment is added

	// so delete the last added attachment

	TInt count = iAttachments.Count();

	--count;

	if (count > 0)

		{

		delete iAttachments[count];

		iAttachments.Remove(count);

		}

	count = iAddedAttachments.Count();

	--count;

	if (count > 0)

		{

		delete iAddedAttachments[count];

		iAddedAttachments.Remove(count);

		}

	User::RequestComplete(iReportStatus, aError);

	return KErrNone;

	}

void CMsvAttachmentManager::CompleteSelf()

	{

	iStatus=KRequestPending;

	SetActive();

	TRequestStatus* status = &iStatus;

	User::RequestComplete(status, KErrNone);

	}

void CMsvAttachmentManager::RestoreL()

	{

	// Before loading, ensure that array is flushed out, all changes since last

	// store commit will be lost

	iAttachments.ResetAndDestroy();

	iDeletedAttachments.ResetAndDestroy();

	// if any added attachment file were added since the last commit, these must be removed

	TInt addedAttachmentCount = iAddedAttachments.Count();

	for( TInt ii=0; ii<addedAttachmentCount; ++ii )

		{

		iStoreManager.DeleteAttachment(iEntryId, *iAddedAttachments[ii]); // ignore return error

		}

	// All the added attachments have been cleaned up, reset the list

	iAddedAttachments.ResetAndDestroy();

	// Only load the attachment info stream if one exists

	if(iStore.IsPresentL(KMsvEntryAttachmentInfo))

		{	

		RMsvReadStream readStream;

		readStream.OpenLC(iStore, KMsvEntryAttachmentInfo);

		// Read the data...

		// 1. the number of attachments

		TInt attachmentCount = readStream.ReadInt32L();

		TFileName attachmentFilePath;

		// 2. populate the attachment array contents

		// for every object create and populate it from the stream

		for(TInt ii=0; ii<attachmentCount; ++ii)

			{

			// create empty attachment object, doesn't matter what type as the

			// correct attachment type is set when it is internalised

			CMsvAttachment* attachment = CMsvAttachment::NewL(CMsvAttachment::EMsvFile);

			CleanupStack::PushL(attachment);

			readStream >> *attachment;

			if( attachment->IsPathRequired() )

				{

				// The attachment path needs to be dynamically set, only get the file path if needed

				if( attachmentFilePath.Length()==0 )

					{

					iStoreManager.AttachmentFilePathL(iEntryId, attachmentFilePath);

					}

				TParse fullPath;

				User::LeaveIfError(fullPath.Set(attachmentFilePath, &attachment->FilePath(), NULL));

				attachment->SetFilePathL(fullPath.FullName());

				}

			User::LeaveIfError(iAttachments.Append(attachment));

			CleanupStack::Pop(attachment);

			}

		// 3. attachment id generator

		iIdGenerator = readStream.ReadUint32L();

		CleanupStack::PopAndDestroy(&readStream);

		}

	// Restore any rename info from the rename lock file

	TInt err = InternaliseRenameLockL();

	if( err==KErrNone )

		{

		// lock file exists

		TInt currentIndex = iRenamed.Count();

		while( currentIndex>0 )

			{

			// We have some files that have been renamed and need to

			// be renamed back to the old name, these are renamed in

			// reverse order in case any one single attachment was

			// renamed twice before committing.

			--currentIndex;

			CMsvAttachmentRename* renameInfo = iRenamed[currentIndex];

			iStoreManager.RenameAttachment(iEntryId, renameInfo->NewName(), renameInfo->OldName()); // ignore errors

			}

		iRenamed.ResetAndDestroy();

		// delete the lock file as it no longer needed

		iStoreManager.DeleteAttachment(iEntryId, KTxtRenameLockFile); // ignore return error

		}

	}

void CMsvAttachmentManager::HandleCommitComplete()

	{

	// The attachments have been commited, the cache of added files can be removed

	iAddedAttachments.ResetAndDestroy();

	// Any attachment files that are marked for delete, must be deleted from the message store

	TInt deleteAttachmentCount = iDeletedAttachments.Count();

	for( TInt ii=0; ii<deleteAttachmentCount; ++ii )

		{

		iStoreManager.DeleteAttachment(iEntryId, *iDeletedAttachments[ii]); // ignore errors

		}

	iDeletedAttachments.ResetAndDestroy();

	// Remove the rename info as changes have been committed

	iStoreManager.DeleteAttachment(iEntryId, KTxtRenameLockFile); // ignore return error

	iRenamed.ResetAndDestroy();

	}

void CMsvAttachmentManager::StoreL()

	{

	__ASSERT_DEBUG(iReadOnly==EFalse, User::Invariant());

	TInt attachmentCount = iAttachments.Count();

	// If there are no attachments, remove the stream

	if(attachmentCount==0)

		{

		iStore.Remove(KMsvEntryAttachmentInfo);

		}

	else

		{

		RMsvWriteStream writeStream;

		writeStream.AssignLC(iStore, KMsvEntryAttachmentInfo);

		// Write the data...

		// 1. the number of attachments

		writeStream.WriteInt32L(attachmentCount);

		// 2. save the attachment array contents

		// for every object create and populate it from the stream

		for(TInt ii=0; ii<attachmentCount; ++ii)

			{

			CMsvAttachment* attachment = iAttachments[ii];

			writeStream << *attachment;

			}

		// 3. attachment id generator

		writeStream.WriteUint32L(iIdGenerator);

		writeStream.CommitL();

		CleanupStack::PopAndDestroy(&writeStream);

		}

	}

TMsvAttachmentId CMsvAttachmentManager::GenerateAttachmentId()

	{

	return ++iIdGenerator;

	}

void CMsvAttachmentManager::CreateAttachmentInStoreLC(TDes& aFileName, RFile& aFile, CMsvAttachment* aAttachmentInfo, TBool aIsShareProtected)

	{

	if( aFileName.CompareF(KTxtRenameLockFile)==0 )

		{

		// Cant add attachments using the same name as the rename lock file

		User::Leave(KErrBadName);

		}

	if(aIsShareProtected)

		{

		iStoreManager.CreateShareProtectedAttachmentForWriteL(iEntryId, aFileName, aFile);

		}

	else

		{				

		iStoreManager.CreateAttachmentForWriteL(iEntryId, aFileName, aFile);

		}

	CleanupClosePushL(aFile);

	HBufC* addedFilePath = aFileName.AllocLC();

	User::LeaveIfError(iAddedAttachments.Append(addedFilePath));

	CleanupStack::Pop(addedFilePath);

	// initailise attachment info and take ownership

	aAttachmentInfo->SetFilePathL(aFileName);

	User::LeaveIfError(iAttachments.Append(aAttachmentInfo));

	aAttachmentInfo->SetId(GenerateAttachmentId());

	}

void CMsvAttachmentManager::AddAttachmentL(const TDesC& aFilePath, CMsvAttachment* aAttachmentInfo, TRequestStatus& aStatus)

	{

	if(iReadOnly)

		User::Leave(KErrAccessDenied);

	__ASSERT_ALWAYS(aAttachmentInfo->Type() == CMsvAttachment::EMsvFile, User::Invariant());

	RFile fileToCopy;

	User::LeaveIfError(fileToCopy.Open(iFs, aFilePath, EFileRead|EFileShareReadersOnly));

	CleanupClosePushL(fileToCopy);

	TFileName fileName;

	User::LeaveIfError(fileToCopy.Name(fileName));

	RFile newFileHandle;

	CreateAttachmentInStoreLC(fileName, newFileHandle, aAttachmentInfo, EFalse);

	aStatus=KRequestPending;

	iReportStatus=&aStatus;

	iCopyOneFile->Copy(fileToCopy, newFileHandle, iStatus);

	CleanupStack::Pop(2, &fileToCopy); // newFileHandle, fileToCopy

	SetActive();

	}

void CMsvAttachmentManager::AddAttachmentL(RFile& aFileHandle, CMsvAttachment* aAttachmentInfo, TRequestStatus& aStatus)

	{

	if(iReadOnly)

		User::Leave(KErrAccessDenied);

	__ASSERT_ALWAYS(aAttachmentInfo->Type() == CMsvAttachment::EMsvFile, User::Invariant());

	TFileName fileName;

	User::LeaveIfError(aFileHandle.Name(fileName));

	RFile newFileHandle;

	CreateAttachmentInStoreLC(fileName, newFileHandle, aAttachmentInfo, EFalse);

	aStatus=KRequestPending;

	iReportStatus=&aStatus;

	iCopyOneFile->Copy(aFileHandle, newFileHandle, iStatus);

	CleanupStack::Pop(&newFileHandle);

	SetActive();

	}

void CMsvAttachmentManager::AddLinkedAttachmentL(const TDesC& aFilePath, CMsvAttachment* aAttachmentInfo, TRequestStatus& aStatus)

	{

	if(iReadOnly)

		User::Leave(KErrAccessDenied);

	__ASSERT_ALWAYS(aAttachmentInfo->Type() == CMsvAttachment::EMsvLinkedFile, User::Invariant());

	// initailise attachment info and take ownership

	aAttachmentInfo->SetFilePathL(aFilePath);

	User::LeaveIfError(iAttachments.Append(aAttachmentInfo));

	aAttachmentInfo->SetId(GenerateAttachmentId());

	aStatus=KRequestPending;

	iReportStatus=&aStatus;

	CompleteSelf();

	}

void CMsvAttachmentManager::AddEntryAsAttachmentL(TMsvId aEntryId, CMsvAttachment* aAttachmentInfo, TRequestStatus& aStatus)

	{

	if(iReadOnly)

		User::Leave(KErrAccessDenied);

	__ASSERT_ALWAYS(aAttachmentInfo->Type() == CMsvAttachment::EMsvMessageEntry, User::Invariant());

	// initailise attachment info and take ownership

	User::LeaveIfError(iAttachments.Append(aAttachmentInfo));

	aAttachmentInfo->SetId(GenerateAttachmentId());

	aAttachmentInfo->SetEntryAttachmentId(aEntryId);

	aStatus=KRequestPending;

	iReportStatus=&aStatus;

	User::RequestComplete(iReportStatus, KErrNone);

	}

void CMsvAttachmentManager::CreateAttachmentL(const TDesC& aFileName, RFile& aAttachmentFile, CMsvAttachment* aAttachmentInfo, TRequestStatus& aStatus)

	{

	CreateAttachmentL(aFileName, aAttachmentFile, aAttachmentInfo);

	aStatus=KRequestPending;

	iReportStatus=&aStatus;

	CompleteSelf();

	}

TInt CMsvAttachmentManager::AttachmentCount() const

	{

	return iAttachments.Count();

	}

CMsvAttachment* CMsvAttachmentManager::GetAttachmentInfoL(TInt aIndex)

	{

	// Create a deep copy the CMsvAttachment object to pass back to the client

	CMsvAttachment* currentAttachment = iAttachments[aIndex];

	return CMsvAttachment::NewL(*currentAttachment);

	}

CMsvAttachment* CMsvAttachmentManager::GetAttachmentInfoL(TMsvAttachmentId aId)

	{

	return GetAttachmentInfoL(IndexPositionOfAttachmentL(aId));

	}

void CMsvAttachmentManager::ModifyAttachmentInfoL(CMsvAttachment* aAttachmentInfo)

	{

	if(iReadOnly)

		User::Leave(KErrAccessDenied);

	// Get the index position of the attachment info with the same Id

	TInt attachmentIndex = IndexPositionOfAttachmentL(aAttachmentInfo->Id());

	__ASSERT_ALWAYS(aAttachmentInfo->Type()==iAttachments[attachmentIndex]->Type(), User::Invariant());

	// Insert the replaced attachment info object into the same position and then

	// remove the old one

	User::LeaveIfError(iAttachments.Insert(aAttachmentInfo, attachmentIndex));

	++attachmentIndex;

	delete iAttachments[attachmentIndex];

	iAttachments.Remove(attachmentIndex);

	}

void CMsvAttachmentManager::ModifyAttachmentInfoL(CMsvAttachment* aAttachmentInfo, TRequestStatus& aStatus)

	{

	ModifyAttachmentInfoL(aAttachmentInfo);	

	aStatus=KRequestPending;

	iReportStatus=&aStatus;

	CompleteSelf();

	}

RFile CMsvAttachmentManager::GetAttachmentFileL(TInt aIndex)

	{

	CMsvAttachment* attachment = iAttachments[aIndex];

	// Make sure that the attachment is a file attachment

	if( attachment->Type() == CMsvAttachment::EMsvMessageEntry )

		User::Leave(KErrNotSupported);

	RFile attachmentFile;

	if( attachment->Type() == CMsvAttachment::EMsvFile )

		{		

		iStoreManager.OpenAttachmentL(iEntryId, attachment->FilePath(), attachmentFile);

		}

	else // attachment->iType == ELinkedFile

		{

		RFs fs;

		User::LeaveIfError(attachmentFile.Open(fs, attachment->FilePath(), EFileRead | EFileShareReadersOnly));

		}

	// handle to attachment file allocated, return to caller

	return attachmentFile;

	}

RFile CMsvAttachmentManager::GetAttachmentFileL(TMsvAttachmentId aId)

	{

	return GetAttachmentFileL(IndexPositionOfAttachmentL(aId));

	}

RFile CMsvAttachmentManager::GetAttachmentFileForWriteL(TInt aIndex)

	{

	if(iReadOnly)

		User::Leave(KErrAccessDenied);

	CMsvAttachment* attachment = iAttachments[aIndex];

	// Make sure that the attachment is a file attachment

	if( attachment->Type() == CMsvAttachment::EMsvMessageEntry )

		User::Leave(KErrNotSupported);

	RFile attachmentFile;

	if( attachment->Type() == CMsvAttachment::EMsvFile )

		{		

		iStoreManager.OpenAttachmentForWriteL(iEntryId, attachment->FilePath(), attachmentFile);

		}

	else // attachment->iType == ELinkedFile

		{

		RFs fs;

		User::LeaveIfError(attachmentFile.Open(fs, attachment->FilePath(), EFileWrite));

		}

	// handle to attachment file allocated, return to caller

	return attachmentFile;

	}

RFile CMsvAttachmentManager::GetAttachmentFileForWriteL(TMsvAttachmentId aId)

	{

	return GetAttachmentFileForWriteL(IndexPositionOfAttachmentL(aId));

	}

void CMsvAttachmentManager::RemoveAttachmentL(TInt aIndex, TRequestStatus& aStatus)

	{

	RemoveAttachmentL(aIndex);

	aStatus=KRequestPending;

	iReportStatus=&aStatus;

	CompleteSelf();

	}

void CMsvAttachmentManager::RemoveAttachmentL(TMsvAttachmentId aId, TRequestStatus& aStatus)

	{

	RemoveAttachmentL(IndexPositionOfAttachmentL(aId), aStatus);

	}

TInt CMsvAttachmentManager::IndexPositionOfAttachmentL(TMsvAttachmentId aId) const

	{

	TInt foundPosition = KErrNotFound;

	TInt attachmentCount = iAttachments.Count();

	// Go through the attachment list to find the attachment by its id

	for( TInt ii=0; ii<attachmentCount; ++ii )

		{

		if( iAttachments[ii]->Id() == aId )

			{

			foundPosition = ii;

			break;

			}

		}

	// Leave with KErrNotFound if the attachment id is not found

	User::LeaveIfError(foundPosition);

	// return the index position of attachment

	return foundPosition;

	}

void CMsvAttachmentManager::CancelRequest()

	{

	Cancel();

	User::RequestComplete(iReportStatus, KErrCancel);

	}

void CMsvAttachmentManager::CreateAttachmentL(const TDesC& aFileName, RFile& aAttachmentFile, CMsvAttachment* aAttachmentInfo)