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#include <qmobilityglobal.h>

#include <qmailstore.h>

#include "qmfhelpers_p.h"

#include "qmessagestore.h"

QTM_BEGIN_NAMESPACE

class QMessageStorePrivate : public QObject

{

    Q_OBJECT

public:

    QMessageStorePrivate() 

        : QObject(), 

          _store(QMailStore::instance()), 

          _error(QMessageManager::NoError), 

          _notify(true),

          _filterId(0)

    {

    }

    QMailStore *_store;

    QMessageManager::Error _error;

    bool _notify;

    QMessageManager::NotificationFilterId _filterId;

    QMap<QMessageManager::NotificationFilterId, QMailMessageKey> _filters;

    static QMailStore *convert(QMessageStore *store);

    static QMailStore *convert(QMessageManager &manager);

    Q_SCOPED_STATIC_DECLARE(QMessageStore,storeInstance);

    static void registerMessageStatus(QMailStore *store, const QString &field);

    static void createNonexistentFolder(QMailStore *store, const QString &path, quint64 status);

public slots:

    void messagesAdded(const QMailMessageIdList &ids);

    void messagesRemoved(const QMailMessageIdList &ids);

    void messagesUpdated(const QMailMessageIdList &ids);

signals:

    void messageAdded(const QMessageId &id, const QMessageManager::NotificationFilterIdSet &matchingFilterIds);

    void messageRemoved(const QMessageId &id, const QMessageManager::NotificationFilterIdSet &matchingFilterIds);

    void messageUpdated(const QMessageId &id, const QMessageManager::NotificationFilterIdSet &matchingFilterIds);

private:

    void processFilters(const QMailMessageIdList &ids, void (QMessageStorePrivate::*signal)(const QMessageId &, const QMessageManager::NotificationFilterIdSet &))

    {

        QMap<QMailMessageId, QMessageManager::NotificationFilterIdSet> matches;

        // Copy the filter map to protect against modification during traversal

        QMap<QMessageManager::NotificationFilterId, QMailMessageKey> filters(_filters);

        QMap<QMessageManager::NotificationFilterId, QMailMessageKey>::const_iterator it = filters.begin(), end = filters.end();

        for ( ; it != end; ++it) {

            const QMailMessageKey &key(it.value());

            QSet<QMailMessageId> filteredIds;

            if (!key.isEmpty()) {

                // Empty key matches all messages; otherwise get the filtered set

                filteredIds = QMailStore::instance()->queryMessages(key).toSet();

            }

            foreach (const QMailMessageId &id, ids) {

                if (key.isEmpty() || filteredIds.contains(id)) {

                    matches[id].insert(it.key());

                }

            }

        }

        QMap<QMailMessageId, QMessageManager::NotificationFilterIdSet>::const_iterator mit = matches.begin(), mend = matches.end();

        for ( ; mit != mend; ++mit) {

            emit (this->*signal)(QmfHelpers::convert(mit.key()), mit.value());

        }

    }

};

QTM_END_NAMESPACE