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#pragma once

#include "EditorAttachment.hpp"
#include "RcPtr.hpp"
#include "Uid.hpp"
#include "Utils.hpp"

#include <rapidjson/fwd.h>
#include <robin_hood.h>
#include <filesystem>
#include <memory>
#include <string_view>

// Forward declarations
class EditorInstance;
class IresManager;

class IresObject : public RefCounted {
	friend class IresManager;

public:
	enum Kind {
		KD_Texture,
		KD_SpriteFiles,
		KD_Spritesheet,
		KD_COUNT,
	};

private:
	std::string mName; // Serialized as filename
	Uid mUid; // Serialized in full mode
	std::unique_ptr<EditorAttachment> mEditorAttachment; // Transient
	IresManager* mMan = nullptr; // Transient
	Kind mKind; // Serialized in full mode

public:
	IresObject(Kind kind);
	virtual ~IresObject() = default;

	static std::string_view ToString(Kind kind);
	static Kind FromString(std::string_view name);
	static std::unique_ptr<IresObject> Create(Kind kind);
	Kind GetKind() const { return mKind; }

	IresManager* GetAssociatedManager() const { return mMan; }
	bool IsAnnoymous() const;
	const std::string& GetName() const { return mName; }
	void SetName(std::string name);
	const Uid& GetUid() const { return mUid; }

	virtual void ShowEditor(EditorInstance& editor);

	EditorAttachment* GetEditorAttachment() const { return mEditorAttachment.get(); }
	void SetEditorAttachment(EditorAttachment* attachment) { mEditorAttachment.reset(attachment); }

	static void WriteFull(IresObject* ires, rapidjson::Value& value, rapidjson::Document& root);
	static std::unique_ptr<IresObject> ReadFull(const rapidjson::Value& value);
	static bool ReadPartial(IresObject* ires, const rapidjson::Value& value);
	virtual void Write(rapidjson::Value& value, rapidjson::Document& root) const;
	virtual void Read(const rapidjson::Value& value);
};

class IresManager {
public:
	static inline IresManager* instance = nullptr;

private:
	robin_hood::unordered_map<Uid, RcPtr<IresObject>> mObjByUid;

public:
	void DiscoverFilesDesignatedLocation();
	void DiscoverFiles(const std::filesystem::path& dir);

	std::pair<IresObject*, bool> Add(IresObject* mat);
	IresObject* Load(const std::filesystem::path& filePath);
	void Delete(IresObject* ires);
	bool Rename(IresObject* ires, std::string newName);

	void Reload(IresObject* ires);
	void Save(IresObject* ires);
	void Save(IresObject* ires, const std::filesystem::path& filePath);

	const auto& GetObjects() const { return mObjByUid; }
	IresObject* FindIres(const Uid& uid);
};