#include "States.hpp"

#include "Model/GlobalStates.hpp"
#include "Model/Project.hpp"

#include <memory>
#include <utility>

static std::unique_ptr<UIState> uiStateInstance;

void UIState::Init()
{
	uiStateInstance = std::make_unique<UIState>();
}

void UIState::Shutdown()
{
	if (uiStateInstance) {
		uiStateInstance->CloseCurrentProject();
		uiStateInstance = nullptr;
	}
}

UIState& UIState::GetInstance()
{
	return *uiStateInstance;
}

void UIState::SetCurrentProject(std::unique_ptr<Project> project)
{
	CloseCurrentProject();
	if (project) {
		GlobalStates::GetInstance().MoveProjectToTop(*project);
	}
	CurrentProject = std::move(project);
}

void UIState::CloseCurrentProject()
{
	if (CurrentProject) {
		CurrentProject->WriteToDisk();
		CurrentProject = nullptr;
	}
}