/* Copyright (C) 2015
 * swift project Community / Contributors
 *
 * This file is part of swift Project. It is subject to the license terms in the LICENSE file found in the top-level
 * directory of this distribution and at http://www.swift-project.org/license.html. No part of swift project,
 * including this file, may be copied, modified, propagated, or distributed except according to the terms
 * contained in the LICENSE file.
 */

//! \file

#ifndef BLACKGUI_DBDISTRIBUTORSELECTORCOMPONENT_H
#define BLACKGUI_DBDISTRIBUTORSELECTORCOMPONENT_H

#include "blackgui/blackguiexport.h"
#include "blackgui/dropbase.h"
#include "blackmisc/network/entityflags.h"
#include "blackmisc/simulation/distributor.h"

#include <QFrame>
#include <QMetaObject>
#include <QObject>
#include <QScopedPointer>
#include <QString>

class QCompleter;
class QDragEnterEvent;
class QDragLeaveEvent;
class QDragMoveEvent;
class QDropEvent;
class QWidget;

namespace Ui { class CDbDistributorSelectorComponent; }
namespace BlackGui
{
    namespace Components
    {
        /*!
         * Distributor selector
         */
        class BLACKGUI_EXPORT CDbDistributorSelectorComponent :
            public QFrame,
            public BlackGui::CDropBase
        {
            Q_OBJECT

        public:
            //! Constructor
            explicit CDbDistributorSelectorComponent(QWidget *parent = nullptr);

            //! Destructor
            virtual ~CDbDistributorSelectorComponent();

            //! Current distributor
            void setDistributor(const BlackMisc::Simulation::CDistributor &distributor);

            //! Current Distributor
            void setDistributor(const QString &distributorKeyOrAlias);

            //! Distributor
            BlackMisc::Simulation::CDistributor getDistributor() const;

            //! Read only
            void setReadOnly(bool readOnly);

            //! Display distributor description
            void withDistributorDescription(bool description);

            //! Set with valid Distributor
            bool isSet() const;

            //! Clear selection
            void clear();

        signals:
            //! Distributor was changed
            void changedDistributor(const BlackMisc::Simulation::CDistributor &distributor);

        protected:
            //! \copydoc QWidget::dragEnterEvent
            virtual void dragEnterEvent(QDragEnterEvent *event) override;

            //! \copydoc QWidget::dragMoveEvent
            virtual void dragMoveEvent(QDragMoveEvent *event) override;

            //! \copydoc QWidget::dragLeaveEvent
            virtual void dragLeaveEvent(QDragLeaveEvent *event) override;

            //! \copydoc QWidget::dropEvent
            virtual void dropEvent(QDropEvent *event) override;

        private:
            //! Distributors have been read
            void onDistributorsRead(BlackMisc::Network::CEntityFlags::Entity entity, BlackMisc::Network::CEntityFlags::ReadState readState, int count);

            //! Data have been changed
            void onDataChanged();

            //! Data have been changed
            void onCompleterActivated(const QString &distributorKeyOrAlias);

            QScopedPointer<Ui::CDbDistributorSelectorComponent> ui;
            QScopedPointer<QCompleter>          m_completerDistributors;
            QMetaObject::Connection             m_signalConnection;
            BlackMisc::Simulation::CDistributor m_currentDistributor;
        };
    } // ns
} // ns
#endif // guard