#pragma once
#include <cstdint>
#include <functional>
#include <memory>
#include "../architecture/Plot_Render_Context.h"
#include "../base/Color.h"
#include "../base/Geometry.h"
#include "../base/Text.h"
#include "global.h"
#include "Performance_Snapshot.h"

namespace renderive {

struct Performance_Overlay_Private;

struct Performance_Overlay_Options {
    Font font;
    int top_margin = 4;
    int left_margin = 6;
    int right_margin = 12;
    int bottom_margin = 6;
    int scroll_bar_width = 8;
    int scroll_bar_margin = 2;
    Color background = Color::white();
    Color foreground = Color::black();
    Color scroll_track = Color{220, 220, 220};
    Color scroll_thumb = Color{80, 80, 80};
};

class LIB_DECL Performance_Overlay : public Frame_Lifecycle_Observer {
public:
    Performance_Overlay();
    ~Performance_Overlay();

    void set_enabled(bool enabled);
    bool enabled() const override;
    void collect_frame(std::shared_ptr<const Frame_Lifecycle_Record> frame) override;
    [[nodiscard]] std::shared_ptr<const Performance_Display_Snapshot> display_snapshot() const;

    void set_options(Performance_Overlay_Options options);
    [[nodiscard]] Performance_Overlay_Options options() const;
    void set_font(Font font);
    void set_foreground(Color color);
    void set_background(Color color);

    void set_viewport(Size viewport, std::uint64_t version);
    bool handle_wheel(PointF position, double angle_delta_y, double pixel_delta_y);
    bool handle_pointer_press(PointF position);
    bool handle_pointer_move(PointF position);
    bool handle_pointer_release(PointF position);
    void set_update_callback(std::function<void()> callback);

private:
    Performance_Overlay_Private* d();
    std::unique_ptr<Performance_Overlay_Private> private_data;
};

} // namespace renderive