#ifndef CORE_COMPONENTS_H
#define CORE_COMPONENTS_H

#include "core/HashMap.h"
#include "core/List.h"

typedef size_t CoreEntity;

typedef struct {
    CoreHashMap entityToIndex;
    List indexToEntity;
    List components;
} CoreComponents;

typedef struct {
    CoreEntity entity;
    void* component;
} CoreComponentNode;

typedef struct {
    const CoreEntity* indexToEntity;
    const CoreEntity* indexToEntityEnd;
    void* component;
    void* componentEnd;
    size_t componentSize;
    CoreComponentNode node;
} CoreComponentIterator;

void coreInitComponents(CoreComponents* c, size_t componentSize);
void coreDestroyComponents(CoreComponents* c);
void* coreGetOrAddComponent(CoreComponents* c, CoreEntity e);
void* coreSearchComponent(CoreComponents* c, CoreEntity e);
bool coreRemoveComponent(CoreComponents* c, CoreEntity e);
void coreInitComponentIterator(CoreComponentIterator* ci, CoreComponents* c);
bool coreHasNextComponentNode(CoreComponentIterator* ci);
CoreComponentNode* coreNextComponentNode(CoreComponentIterator* ci);
void* coreGetComponentsStart(CoreComponents* c);
void* coreGetComponentsEnd(CoreComponents* c);

#ifdef IMPORT_CORE
#define Entity CoreEntity
#define Components CoreComponents
#define ComponentNode CoreComponentNode
#define ComponentIterator CoreComponentIterator
#define initComponents coreInitComponents
#define destroyComponents coreDestroyComponents
#define getOrAddComponent coreGetOrAddComponent
#define searchComponent coreSearchComponent
#define removeComponent coreRemoveComponent
#define initComponentIterator coreInitComponentIterator
#define hasNextComponentNode coreHasNextComponentNode
#define nextComponentNode coreNextComponentNode
#define getComponentsStart coreGetComponentsStart
#define getComponentsEnd coreGetComponentsEnd
#endif

#endif