/****************************************************************************
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****************************************************************************/

#ifndef QSERVICEDATABASE_H_
#define QSERVICEDATABASE_H_

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#include "qserviceframeworkglobal.h"
#include <QtSql>
#include <QList>
#include "servicemetadata_p.h"
#include "qservicefilter.h"
#include "dberror_p.h"


QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE

class QServiceInterfaceDescriptor;

class Q_AUTOTEST_EXPORT ServiceDatabase : public QObject
{
    Q_OBJECT

    public:
        ServiceDatabase(void);

        virtual ~ServiceDatabase();

        bool open();
        bool close();

        bool isOpen() const;
        void setDatabasePath(const QString &databasePath);
        QString databasePath() const;

        bool registerService(const ServiceMetaDataResults &service, const QString &securityToken = QString());
        bool unregisterService(const QString &serviceName, const QString &securityToken = QString());
        bool serviceInitialized(const QString &serviceName, const QString &securityToken = QString());

        QList<QServiceInterfaceDescriptor> getInterfaces(const QServiceFilter &filter);
        QServiceInterfaceDescriptor getInterface(const QString &interfaceID);
        QString getInterfaceID(const QServiceInterfaceDescriptor &interface);
        QStringList getServiceNames(const QString &interfaceName);

        QServiceInterfaceDescriptor interfaceDefault(const QString &interfaceName,
                                    QString *interfaceID = 0, bool inTransaction = false);
        bool setInterfaceDefault(const QServiceInterfaceDescriptor &interface,
                                const QString &externalInterfaceID = QString());
        QList<QPair<QString,QString> > externalDefaultsInfo();
        bool removeExternalDefaultServiceInterface(const QString &interfaceID);

        DBError lastError() const { return m_lastError; }

Q_SIGNALS:
        void serviceAdded(const QString& serviceName);
        void serviceRemoved(const QString& serviceName);

#ifdef QT_BUILD_INTERNAL
    public:
#else
    private:
#endif
        enum TransactionType{Read, Write};

        bool createTables();
        bool dropTables();
        bool checkTables();

        bool checkConnection();

        bool executeQuery(QSqlQuery *query, const QString &statement, const QList<QVariant> &bindValues = QList<QVariant>());
        QString getInterfaceID(QSqlQuery *query, const QServiceInterfaceDescriptor &interface);
        bool insertInterfaceData(QSqlQuery *query, const QServiceInterfaceDescriptor &anInterface, const QString &serviceID);

        bool beginTransaction(QSqlQuery *query, TransactionType);
        bool commitTransaction(QSqlQuery *query);
        bool rollbackTransaction(QSqlQuery *query);

        bool populateInterfaceProperties(QServiceInterfaceDescriptor *descriptor, const QString &interfaceID);
        bool populateServiceProperties(QServiceInterfaceDescriptor *descriptor, const QString &serviceID);

        QString m_databasePath;
        QString m_connectionName;
        bool m_isDatabaseOpen;
        bool m_inTransaction;
        DBError m_lastError;
};

QT_END_NAMESPACE
QT_END_HEADER

#endif /*QSERVICEDATABASE_H_*/