#ifndef PKE_ECS_HPP
#define PKE_ECS_HPP

#include "dynamic-array.hpp"
#include "macros.hpp"
#include "memory.hpp"
#include "components.hpp"

#include "glm/vec3.hpp"

extern DynArray<Entity_Base *> EntitiesToBeRemoved;
extern DynArray<Entity_Base *> EntitiesWithExcessInstances;

static struct {
	uint64_t Entity =           1ULL << 0;
	uint64_t GrBinds =          1ULL << 1;
	uint64_t Instance =         1ULL << 2;
} ComponentTypes;

void ECS_Init();
void ECS_Teardown();
void ECS_Tick_Early(double delta);
void ECS_Tick(double delta);
void ECS_Tick_Late(double delta);

EntityHandle ECS_CreateEntity(Entity_Base *entity, Entity_Base *parentEnt = nullptr);
Entity_Base *ECS_GetEntity(EntityHandle handle);
void ECS_MarkForRemoval(Entity_Base *entity);

void ECS_HandleCollision(Entity_Base *lhs, Entity_Base *rhs);

CompGrBinds *ECS_CreateGrBinds(Entity_Base *);
CompGrBinds *ECS_GetGrBinds(GrBindsHandle grBindsHandle);
uint64_t ECS_GetGrBinds_BucketCount();
CompGrBinds *ECS_GetGrBinds(uint64_t bucketIndex, uint64_t &itemCount);

CompInstance *ECS_CreateInstance(Entity_Base *entity, CompGrBinds *entityTypeGrBinds);
CompInstance *ECS_GetInstance(InstanceHandle instanceHandle);
void ECS_UpdateInstance(CompInstance *instance, const InstPos &instPos, bool overridePhysics = false);
uint64_t ECS_GetInstances_BucketCount();
CompInstance *ECS_GetInstances(uint64_t bucketIndex, uint64_t &itemCount);

#endif /* PKE_ECS_HPP */