#ifndef AMUSE_STUDIO_SETUP_WIDGET_HPP
#define AMUSE_STUDIO_SETUP_WIDGET_HPP

#include "EditorWidget.hpp"
#include <QWidget>
#include <QTreeWidget>
#include <QLabel>
#include <QVBoxLayout>
#include <QLayoutItem>
#include <QStaticText>
#include <QPropertyAnimation>
#include <QScrollArea>
#include <QSplitter>
#include "amuse/Studio.hpp"

class EffectListing;

struct EffectIntrospection
{
    struct Field
    {
        enum class Type
        {
            Invalid,
            UInt32,
            UInt32x8,
            Float
        };
        Type m_tp;
        std::string_view m_name;
        float m_min, m_max, m_default;
    };
    amuse::EffectType m_tp;
    std::string_view m_name;
    std::string_view m_description;
    Field m_fields[7];
};

class Uint32X8Popup : public QFrame
{
    Q_OBJECT
    FieldSlider* m_sliders[8];
public:
    explicit Uint32X8Popup(int min, int max, QWidget* parent = Q_NULLPTR);
    void setValue(int chanIdx, int val);
private slots:
    void doValueChanged(int val);
signals:
    void valueChanged(int chanIdx, int val);
};

class Uint32X8Button : public QPushButton
{
    Q_OBJECT
    Uint32X8Popup* m_popup;
public:
    explicit Uint32X8Button(int min, int max, QWidget* parent = Q_NULLPTR);
    void paintEvent(QPaintEvent* event);
    Uint32X8Popup* popup() const { return m_popup; }
    QStyleOptionComboBox comboStyleOption() const;
private slots:
    void onPressed();
};

class EffectWidget : public QWidget
{
    Q_OBJECT
    friend class EffectListing;
    QFont m_numberFont;
    QLabel m_titleLabel;
    ListingDeleteButton m_deleteButton;
    QStaticText m_numberText;
    int m_index = -1;
    amuse::EffectBaseTypeless* m_effect;
    const EffectIntrospection* m_introspection;
    void setIndex(int index);
private slots:
    void numChanged(int);
    void numChanged(double);
    void chanNumChanged(int, int);
    void deleteClicked();
private:
    explicit EffectWidget(QWidget* parent, amuse::EffectBaseTypeless* effect, amuse::EffectType type);
public:
    EffectListing* getParent() const;
    explicit EffectWidget(QWidget* parent, amuse::EffectBaseTypeless* effect);
    explicit EffectWidget(QWidget* parent, amuse::EffectType op);
    void paintEvent(QPaintEvent* event);
    QString getText() const { return m_titleLabel.text(); }
};

class EffectWidgetContainer : public QWidget
{
    Q_OBJECT
    friend class EffectListing;
    EffectWidget* m_effectWidget;
    QPropertyAnimation* m_animation = nullptr;
    void animateOpen();
    void animateClosed();
    void snapOpen();
    void snapClosed();
private slots:
    void animationDestroyed();
public:
    template <class..._Args>
    EffectWidgetContainer(QWidget* parent, _Args&&... args);
};

class EffectListing : public QWidget
{
    Q_OBJECT
    friend class EffectWidget;
    friend class StudioSetupWidget;
    amuse::Submix* m_submix = nullptr;
    QVBoxLayout* m_layout;
    QLayoutItem* m_dragItem = nullptr;
    int m_origIdx = -1;
    int m_dragOpenIdx = -1;
    EffectWidgetContainer* m_prevDragOpen = nullptr;
    int m_autoscrollTimer = -1;
    int m_autoscrollDelta = 0;
    QWidget* m_autoscrollSource = nullptr;
    QMouseEvent m_autoscrollEvent = {{}, {}, {}, {}, {}};
    void startAutoscroll(QWidget* source, QMouseEvent* event, int delta);
    void stopAutoscroll();
    bool beginDrag(EffectWidget* widget);
    void endDrag();
    void cancelDrag();
    void _moveDrag(int hoverIdx, const QPoint& pt, QWidget* source, QMouseEvent* event);
    void moveDrag(EffectWidget* widget, const QPoint& pt, QWidget* source, QMouseEvent* event);
    int moveInsertDrag(const QPoint& pt, QWidget* source, QMouseEvent* event);
    void insertDragout();
    void insert(amuse::EffectType type, const QString& text);
    void deleteEffect(int index);
    void reindex();
    void clear();
public:
    explicit EffectListing(QWidget* parent = Q_NULLPTR);
    bool loadData(amuse::Submix* submix);
    void unloadData();
    void timerEvent(QTimerEvent* event);
};

class EffectCatalogueItem : public QWidget
{
    Q_OBJECT
    amuse::EffectType m_type;
    QLabel m_iconLab;
    QLabel m_label;
public:
    explicit EffectCatalogueItem(amuse::EffectType type, const QString& name,
                                 const QString& doc, QWidget* parent = Q_NULLPTR);
    explicit EffectCatalogueItem(const EffectCatalogueItem& other, QWidget* parent = Q_NULLPTR);
    amuse::EffectType getType() const { return m_type; }
    QString getText() const { return m_label.text(); }
};

class EffectCatalogue : public QTreeWidget
{
    Q_OBJECT
public:
    explicit EffectCatalogue(QWidget* parent = Q_NULLPTR);
    void mousePressEvent(QMouseEvent* event);
    void mouseReleaseEvent(QMouseEvent* event);
    void mouseMoveEvent(QMouseEvent* event);
};

class StudioSetupWidget : public QWidget
{
    Q_OBJECT
    friend class EffectCatalogue;
    QSplitter* m_splitter;
    QTabWidget* m_tabs;
    EffectListing* m_listing[2];
    EffectCatalogue* m_catalogue;
    EffectWidget* m_draggedCmd = nullptr;
    EffectCatalogueItem* m_draggedItem = nullptr;
    QPoint m_draggedPt;
    int m_dragInsertIdx = -1;
    EffectListing* getCurrentListing() const;
    void beginCommandDrag(EffectWidget* widget, const QPoint& eventPt, const QPoint& pt);
    void beginCatalogueDrag(EffectCatalogueItem* item, const QPoint& eventPt, const QPoint& pt);
public:
    explicit StudioSetupWidget(QWidget* parent = Q_NULLPTR);
    bool loadData(amuse::Studio* studio);
    void unloadData();

    void mousePressEvent(QMouseEvent* event);
    void mouseReleaseEvent(QMouseEvent* event);
    void mouseMoveEvent(QMouseEvent* event);
    void keyPressEvent(QKeyEvent* event);

    void hideEvent(QHideEvent* event);
    void showEvent(QShowEvent* event);
    void updateWindowPosition();

public slots:
    void catalogueDoubleClicked(QTreeWidgetItem* item, int column);

signals:
    void hidden();
    void shown();
};

#endif // AMUSE_STUDIO_SETUP_WIDGET_HPP