#ifndef ARC_STD_ENTITY_H_
#define ARC_STD_ENTITY_H_

#ifdef __cplusplus
extern "C" {
#endif

#include "arc/std/array.h"
#include "arc/std/bool.h"
#include <stdint.h>

/**
 * @brief an entity component system type
*/
typedef struct ARC_EntitySystem ARC_EntitySystem;

/**
 * @brief an entity component system type
*/
typedef uint32_t ARC_Entity;

/**
 * @brief an entity component system type
*/
typedef enum ARC_EntityFlags {
    ARC_ENTITY_DEAD  = 0,
    ARC_ENTITY_ALIVE = 1
} ARC_EntityFlags;

/**
 * @brief an entity component system type
*/
typedef uint32_t ARC_EntityComponent;

/**
 * @brief
*/
typedef void (* ARC_EntityCoponent_CreateEmptyFn)(void **type);

/**
 * @brief
*/
void ARC_EntitySystem_Create(ARC_EntitySystem **entitySystem);

/**
 * @brief destroys an ARC_EntitySystem
 *
 * @param[in] entitySystem ARC_EntitySystem to free
*/
void ARC_EntitySystem_Destroy(ARC_EntitySystem *entitySystem);

/**
 * @brief registers space for a component and an id for the compenent within the entity system
 *
 * @note this function will set arc_errno if the components run out of space
 *
 * @param[in] entitySystem  the entity system to register the component to
 * @param[in] componentSize the size of the component to register
 *
 * @return an id for for the component
*/
uint32_t ARC_EntitySystem_RegisterComponent(ARC_EntitySystem *entitySystem, uint32_t componentSize);

/**
 * @brief
*/
ARC_Entity ARC_EntitySystem_InitEntity(ARC_EntitySystem *entitySystem);

/**
 * @brief
*/
void ARC_EntitySystem_ReleaseEntity(ARC_EntitySystem *entitySystem, ARC_Entity entity);

/**
 * @brief
*/
void ARC_EntitySystem_AddComponent(ARC_EntitySystem *entitySystem, ARC_Entity entity, ARC_EntityComponent component, void *data);

/**
 * @brief
*/
ARC_Bool ARC_EntitySystem_HasComponent(ARC_EntitySystem *entitySystem, ARC_Entity entity, ARC_EntityComponent component);

/**
 * @brief
*/
void *ARC_EntitySystem_GetComponentData(ARC_EntitySystem *entitySystem, ARC_Entity entity, ARC_EntityComponent component);

/**
 * @brief
*/
ARC_Array ARC_EntitySystem_QueryComponentsData(ARC_EntitySystem *entitySystem, ARC_Array components);

#ifdef __cplusplus
}
#endif

#endif // !ARC_STD_ENTITY_H_