#pragma once

#include "Model/Assets.hpp"
#include "cplt_fwd.hpp"

#include <filesystem>
#include <iosfwd>
#include <memory>
#include <string>

class Template : public Asset
{
public:
	enum Kind
	{
		KD_Table,

		InvalidKind,
		KindCount = InvalidKind,
	};

	using CategoryType = TemplateAssetCategory;
	static constinit const TemplateAssetCategory Category;

private:
	Kind mKind;

public:
	static const char* FormatKind(Kind kind);
	static std::unique_ptr<Template> CreateByKind(Kind kind);

	static bool IsInstance(const Template* tmpl);

	Template(Kind kind);
	virtual ~Template() = default;

	Kind GetKind() const;

	enum ReadResult
	{
		RR_Success,
		RR_InvalidFormat,
	};
	virtual ReadResult ReadFrom(std::istream& stream) = 0;
	virtual void WriteTo(std::ostream& stream) const = 0;
};

class TemplateAssetCategory : public AssetCategory
{
public:
	virtual void DiscoverFiles(const std::function<void(SavedAsset)>& callback) const override;
	virtual Template* CreateEmpty(const SavedAsset& diskForm) const override;
	virtual Template* Load(const SavedAsset& diskForm) const override;
	virtual void SetupDetailsTable(const char* tableId) const override;
	virtual void DrawBigIcon(const SavedAsset& asset) const override;
	virtual void DrawDetailsTableRow(const SavedAsset& asset) const override;
};