/*
    SPDX-FileCopyrightText: 2012 Samikshan Bairagya <samikshan@gmail.com>

    SPDX-License-Identifier: GPL-2.0-or-later
*/

#pragma once

#include <QString>
#include <QWidget>

#include <memory>

class QNetworkAccessManager;
class QQmlContext;
class QQuickItem;
class QQuickView;

class ModelManager;
class ObsConditions;
class SkyObject;
class SkyObjItem;

/**
 * @class WIView
 * @brief Manages the QML user interface for What's Interesting. WIView is used to display the
 * QML UI using a QQuickView. It acts on all signals emitted by the UI and manages the data
 * sent to the UI for display.
 *
 * @author Samikshan Bairagya
 */
class WIView : public QWidget
{
        Q_OBJECT
    public:
        /**
         * @brief Constructor - Store QML components as QObject pointers.
         * Connect signals from various QML components into public slots.
         * Displays the user interface for What's Interesting
         */
        explicit WIView(QWidget *parent = nullptr);

        virtual ~WIView() override = default;

        /** Load details-view for selected sky-object */
        void loadDetailsView(SkyObjItem *soitem, int index);

        /** Updates sky-object list models */
        void updateModel(ObsConditions &obs);

        inline QQuickView *getWIBaseView() const
        {
            return m_BaseView;
        }

    public Q_SLOTS:

        /**
         * @brief public slot - Act upon signal emitted when category of sky-object is selected
         * from category selection view of the QML UI.
         * @param model Category selected
         */
        void onCategorySelected(QString model);

        /**
         * @brief public slot - Act upon signal emitted when an item is selected from list of sky-objects.
         * Display details-view for the skyobject selected.
         * @param index       Index of item in the list of skyobjects.
         */
        void onSoListItemClicked(int index);

        /** public slot - Show details-view for next sky-object from list of current sky-objects's category. */
        void onNextObjClicked();

        /**
         * @brief public slot - Show details-view for previous sky-object from list of current sky-objects's
         * category.
         */
        void onPrevObjClicked();

        /** public slot - Slew map to current sky-object in the details view. */
        void onCenterButtonClicked();

        /** public slot - Slew map to current sky-object in the details view. */
        void onSlewTelescopeButtonClicked();

        /** public slot - Open Details Dialog to show more details for current sky-object. */
        void onDetailsButtonClicked();

        /** public slot - Open WI settings dialog. */
        void onSettingsIconClicked();

        void onInspectIconClicked(bool checked)
        {
            inspectOnClick = checked;
        }

        /** public slot - Reload list of visible sky-objects. */
        void onReloadIconClicked();

        void onVisibleIconClicked(bool checked);

        void onFavoriteIconClicked(bool checked);

        void onUpdateIconClicked();

        void updateWikipediaDescription(SkyObjItem *soitem);
        void loadObjectDescription(SkyObjItem *soitem);
        void tryToUpdateWikipediaInfo(SkyObjItem *soitem, QString name);
        void loadObjectInfoBox(SkyObjItem *soitem);
        void saveImageURL(SkyObjItem *soitem, QString imageURL);
        void saveInfoURL(SkyObjItem *soitem, QString infoURL);
        void saveObjectInfoBoxText(SkyObjItem *soitem, QString type, QString infoText);
        void downloadWikipediaImage(SkyObjItem *soitem, QString imageURL);
        void inspectSkyObject(const QString &name);
        void inspectSkyObjectOnClick(SkyObject *obj);
        void inspectSkyObject(SkyObject *obj);
        bool inspectOnClickIsActive()
        {
            return inspectOnClick;
        }
        void updateObservingConditions();
        void tryToUpdateWikipediaInfoInModel(bool onlyMissing);
        void refreshListView();
        void updateProgress(double value);
        void setProgressBarVisible(bool visible);
        void setNightVisionOn(bool on);

    private:
        QString getWikipediaName(SkyObjItem *soitem);

        QQuickItem *m_BaseObj { nullptr };
        QQuickItem *m_ViewsRowObj { nullptr };
        QQuickItem *m_CategoryTitle { nullptr };
        QQuickItem *m_SoListObj { nullptr };
        QQuickItem *m_DetailsViewObj { nullptr };
        QQuickItem *m_ProgressBar { nullptr };
        QQuickItem *m_loadingMessage { nullptr };
        QQuickItem *m_NextObj { nullptr };
        QQuickItem *m_PrevObj { nullptr };
        QQuickItem *m_CenterButtonObj { nullptr };
        QQuickItem *m_SlewTelescopeButtonObj { nullptr };
        QQuickItem *m_DetailsButtonObj { nullptr };
        QQuickItem *inspectIconObj { nullptr };
        QQuickItem *visibleIconObj { nullptr };
        QQuickItem *favoriteIconObj { nullptr };
        QQmlContext *m_Ctxt { nullptr };
        QObject *infoBoxText { nullptr };
        QObject *descTextObj { nullptr };
        QObject *nightVision { nullptr };
        QObject *autoTrackCheckbox { nullptr };
        QObject *autoCenterCheckbox { nullptr };

        QQuickView *m_BaseView { nullptr };
        ObsConditions *m_Obs { nullptr };
        std::unique_ptr<ModelManager> m_ModManager;
        /// Current sky object item.
        SkyObjItem *m_CurSoItem { nullptr };
        /// Created sky object item on-demand
        std::unique_ptr<SkyObjItem> trackedItem;
        /// Index of current sky-object item in Details view.
        int m_CurIndex { 0 };
        /// Currently selected category from WI QML view
        QString m_CurrentObjectListName;
        std::unique_ptr<QNetworkAccessManager> manager;
        bool inspectOnClick { false };
};
