#pragma once

#include "util/Types.h"
//#include "client/Window.h"
#include "util/CovariantPtr.h"

class Window;
class LocalWorld;
class LocalPlayer;
class LocalSubgame;
namespace Gui {
	class Element;
	class BoxElement;
	class TextElement;
};

/**
 * Renders debug information, in the form of graphs and text.
 * Can be enabled, disabled, or displayed with FPS only.
 */

class DebugDisplay {
public:

	enum class Visibility { OFF, FPS_ONLY, ON };

	DebugDisplay(sptr<Gui::Element> root, SubgamePtr game, LocalWorld& world, vec<string>& perfSections);

	/** Updates the debug screen with the latest data. */
	void update(sptr<LocalPlayer> player, f64 delta, u32 interpolatedChunks, u32 generatedChunks,
		u32 recievedPackets, vec<usize>& perfTimings, u32 drawnMeshChunks, u32 generatedMeshChunks);

private:

	constexpr static vec4 MAPBLOCK_UNLOADED = { 1, 1, 1, 0.15 };
	constexpr static vec4 MAPBLOCK_LOADED = { 1, 1, 1, 0.75 };
	constexpr static vec4 MAPBLOCK_CURRENT = { 1, 0.93, 0.35, 1 };

	constexpr static i32 MAPBLOCK_VERT = 3;
	constexpr static i32 MAPBLOCK_RANGE = 11;

	u32 mapBlockScanX = 0;
	constexpr static u32 MAPBLOCK_SCAN_X_INTERVAL = 9;

	SubgamePtr game;
	LocalWorld& world;
	
	sptr<Gui::Element> root;
	sptr<Gui::TextElement> crosshair, data;

	Visibility state = Visibility::ON;
};