#pragma once

#include <Core/Common/NonNullPtr.h>
#include <Core/Common/String.h>
#include <Core/Container/Vector.h>
#include <Core/Memory/MemoryArena.h>
#include <Entity/Entity.h>

struct Archive;
struct EntityManager;

#pragma pack(push, 1)
struct WorldFileHeader
{
    uint32 Magic = 0x444C574A; // 'JWLD' in little-endian
};
#pragma pack(pop)

constexpr uint32 kWorldMagic   = 0x444C574A; // 'JWLD'
constexpr uint32 kWorldVersion = 1;

struct World
{
    Arena*         WorldArena    = nullptr;
    EntityManager* EntityManager = nullptr;
};

void InitWorld(NonNullPtr<World> world, NonNullPtr<Arena> arena);
void ShutdownWorld(NonNullPtr<World> world);

void AddToWorld(NonNullPtr<World> world, NonNullPtr<Entity> entity);
void RemoveWorldEntity(World& world, size_t index);

void Serialize(Archive& data, World& world, String filename);

#if JULIET_EDITOR
void RenderWorldEditorUI(World& world);
#endif