#pragma once

#include "../base/Types.h"
#include "../plot/Plot_Core.h"

#include <cstdint>
#include <memory>
#include <string>
#include <vector>

namespace renderive {

struct Performance_Log_Options {
    bool enabled{};
    std::string directory;
    std::string session_name = "renderive";
};

struct Performance_Overlay_Style {
    Font font;
    int top_margin = 4;
    int left_margin = 6;
    int right_margin = 12;
    int bottom_margin = 6;
    Color background = Color::white();
    Color section_color{64, 142, 255};
    Color label_color{190, 190, 190};
    Color value_color{235, 218, 130};
};

struct Performance_Overlay_Options {
    Performance_Overlay_Style style;
    Performance_Log_Options log;
};

struct Performance_Display_Snapshot {
    Performance_Overlay_Style style;
    Size viewport_size;
    std::string plot_name;
    std::vector<std::string> lines;
    std::uint64_t frame_count{};
};

class LIB_DECL Performance_Overlay {
public:
    Performance_Overlay();
    explicit Performance_Overlay(Performance_Overlay_Options options);
    ~Performance_Overlay();

    [[nodiscard]] bool enabled() const noexcept;
    [[nodiscard]] std::shared_ptr<const Performance_Display_Snapshot> display_snapshot() const;

private:
    friend class Plot_Core;
    friend std::shared_ptr<Performance_Overlay> attach_performance_overlay(Plot_Core&);
    friend std::shared_ptr<Performance_Overlay> attach_performance_overlay(
        Plot_Core&, const Performance_Overlay_Options&);
    friend void set_performance_plot_name(Plot_Core&, std::string);
    friend void set_performance_overlay_enabled(Plot_Core&, bool);

    struct Impl;
    std::unique_ptr<Impl> impl_;

    void set_enabled(bool enabled);
    void set_plot_name(std::string name);
    void set_options(Performance_Overlay_Options options);
    void record_frame(double render_duration_ms,
                      const Low_Latency_Diagnostics& diagnostics,
                      std::size_t renderable_count,
                      Size viewport);
};

LIB_DECL std::shared_ptr<Performance_Overlay> attach_performance_overlay(Plot_Core& plot);
LIB_DECL std::shared_ptr<Performance_Overlay> attach_performance_overlay(
    Plot_Core& plot, const Performance_Overlay_Options& options);
LIB_DECL void set_performance_plot_name(Plot_Core& plot, std::string name);
LIB_DECL void set_performance_overlay_enabled(Plot_Core& plot, bool enabled);

} // namespace renderive