#pragma once

#include "Utils/Sigslot.hpp"
#include "cplt_fwd.hpp"

#include <filesystem>
#include <string>
#include <vector>

class GlobalStates
{
public:
	static void Init();
	static void Init(std::filesystem::path userDataDir);
	static void Shutdown();

	static GlobalStates& GetInstance();
	static const std::filesystem::path& GetUserDataPath();

	struct RecentProject
	{
		std::filesystem::path path;
		std::string cachedUtf8String;
	};

public:
	Signal<> OnModified;

private:
	std::vector<RecentProject> mRecentProjects;
	mutable bool mDirty = false;

public:
	const std::vector<RecentProject>& GetRecentProjects() const;
	void ClearRecentProjects();
	void AddRecentProject(const Project& project);
	/// Move or add the project to end of the recent projects list.
	/// If the project is not in the list of recently used projects, it will be appended, otherwise
	/// it will be moved to the end.
	void MoveProjectToTop(const Project& project);
	void RemoveRecentProject(int idx);

	// TODO async autosaving to prevent data loss on crash
	void WriteToDisk() const;

	bool IsDirty() const;

private:
	void MarkDirty();
};