/*

* 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:

*

*/

#ifndef NMUIENGINE_H

#define NMUIENGINE_H

#include <QObject>

#include <QList>

#include <xqsharablefile.h>

#include "nmcommon.h"

#include "nmuienginedef.h"

class NmMailboxListModel;

class NmMessageListModel;

class NmDataManager;

class NmDataPluginFactory;

class NmMailboxMetaData;

class NmMessage;

class NmMessagePart;

class NmMessageEnvelope;

class NmMessageCreationOperation;

class NmStoreEnvelopesOperation;

class NmAddAttachmentsOperation;

class NmCheckOutboxOperation;

class NmMessageSendingOperation;

class NMUIENGINE_EXPORT NmUiEngine: public QObject

{

    Q_OBJECT

public:

    static NmUiEngine *instance();

    static void releaseInstance(NmUiEngine *&instance);

    NmMailboxListModel &mailboxListModel();

    void refreshMailboxListModel();

    NmMessageListModel &messageListModel(const NmId &mailboxId, const NmId &folderId);

    NmId standardFolderId(const NmId &mailboxId, NmFolderType folderType);

    NmMessage *message(

        const NmId &mailboxId,

        const NmId &folderId,

        const NmId &messageId);

        const NmId &mailboxId,

        const NmId &folderId,

        const NmId &messageId);

        const NmId &mailboxId,

        const NmId &folderId,

        const NmId &messageId,

        const NmId &messagePartId);

    XQSharableFile messagePartFile(

    NmMailboxMetaData *mailboxById(const NmId &mailboxId);

    int contentToMessagePart(

        const NmId &mailboxId,

        const NmId &folderId,

        const NmId &messageId,

        NmMessagePart &messagePart);

    NmMessage *createMessage(

        const NmId &mailboxId,

        const NmId &folderId);

    int deleteMessages(

        const NmId &mailboxId,

        const NmId &folderId,

        const QList<NmId> &messageIdList);

    int saveMessage(const NmMessage &message);

    int refreshMailbox(const NmId &mailboxId);

    int goOnline(const NmId &mailboxId);

    int goOffline(const NmId &mailboxId);

    int removeMessage(

                const NmId &mailboxId,

                const NmId &folderId,

                const NmId &messageId);

    bool isSendingMessage() const;

    const NmMessage *messageBeingSent() const;

    NmSyncState syncState(const NmId& mailboxId);

    NmConnectState connectionState(const NmId& mailboxId);

public slots:

    void handleCompletedSendOperation();

    void handleSyncStateEvent(NmSyncState syncState, const NmOperationCompletionEvent &event);

signals:

    void syncStateEvent(NmSyncState, const NmId &);

    void connectionEvent(NmConnectState, const NmId &);

    void operationCompleted(const NmOperationCompletionEvent &event);

    void sendOperationCompleted();

private:

    NmUiEngine();

    virtual ~NmUiEngine();

private:

    static NmUiEngine *mInstance;

    static int	mReferenceCount;

    NmDataPluginFactory *mPluginFactory;

    NmDataManager *mDataManager;                // Owned

    NmMailboxListModel *mMailboxListModel;      // Owned

    NmMessageListModel *mMessageListModel;      // Owned

};

#endif /* NMUIENGINE_H */