#pragma once

#include <Core/Common/CoreTypes.h>
#include <Core/Container/Vector.h>
#include <Entity/Entity.h>

struct Entity;
struct World;

struct typed_entity_array
{
    Arena*           arena;
    entity_template* array;
    size_t           count;
};

struct EntityManager
{
    static EntityID ID;

    // TODO: Should be a pool
    VectorArena<Entity, 100'000> Entities;

    typed_entity_array by_type[ENTITY(Count)];
};

void             InitEntityManager(NonNullPtr<World> world);
void             ShutdownEntityManager();
EntityManager&   GetEntityManager();
entity_template* RegisterEntity(EntityManager& manager, Entity* base, DerivedType entity);
void             RegisterBaseEntity(EntityManager& manager, Entity&& base);
void             UpdateEntityManager(EntityManager& manager);