/* 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_COMPONENTS_DBAIRCRAFTICAOSELECTORCOMPONENT_H
#define BLACKGUI_COMPONENTS_DBAIRCRAFTICAOSELECTORCOMPONENT_H

#include "blackgui/blackguiexport.h"
#include "blackgui/dropbase.h"
#include "blackmisc/aviation/aircrafticaocode.h"
#include "blackmisc/network/entityflags.h"

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

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

namespace Ui { class CDbAircraftIcaoSelectorComponent; }
namespace BlackGui
{
    namespace Components
    {
        /*!
         * Aircraft ICAO selector
         */
        class BLACKGUI_EXPORT CDbAircraftIcaoSelectorComponent :
            public QFrame,
            public CDropBase
        {
            Q_OBJECT

        public:
            //! How to display the info
            enum Display
            {
                DisplayIcaoAndId,
                DisplayCompleterString
            };

            //! Constructor
            explicit CDbAircraftIcaoSelectorComponent(QWidget *parent = nullptr);

            //! Destructor
            virtual ~CDbAircraftIcaoSelectorComponent() override;

            //! Current aircraft ICAO
            //! \return changed
            bool setAircraftIcao(const BlackMisc::Aviation::CAircraftIcaoCode &icao);

            //! Current aircraft ICAO
            //! \return changed
            bool setAircraftIcao(int key);

            //! Distributor
            BlackMisc::Aviation::CAircraftIcaoCode getAircraftIcao() const;

            //! Raw designator
            QString getRawDesignator() const;

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

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

            //! How to display string in text field
            void displayMode(Display mode) { m_display = mode; }

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

            //! Clear selection
            void clear();

        signals:
            //! ICAO was changed
            void changedAircraftIcao(const BlackMisc::Aviation::CAircraftIcaoCode &icao);

        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 onCodesRead(BlackMisc::Network::CEntityFlags::Entity entity, BlackMisc::Network::CEntityFlags::ReadState readState, int count);

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

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

            //! Get the completer strings
            //! \remark shared for performance reasons
            const QStringList &completerStrings();

            QScopedPointer<Ui::CDbAircraftIcaoSelectorComponent> ui;
            QScopedPointer<QCompleter> m_completerIcaoDescription;
            BlackMisc::Aviation::CAircraftIcaoCode m_currentIcao;
            Display m_display = DisplayIcaoAndId;
            QStringList m_completerStrings; //!< the completer strings
        };
    } // ns
} // ns
#endif // guard