#ifndef OBJECT_STORE_H
#define OBJECT_STORE_H

#include "Renderer.h"
#include "SDL_events.h"
#include "engine_build_config.h"
#include "reusable_ids.h"
#include <stdint.h>

#ifdef __cplusplus
extern "C" {
#endif // !__cplusplus

typedef void (*EventHandlerPtr)(void *object, const SDL_Event *event);
typedef void (*UpdateFuncPtr)(void *object, float delta);
typedef void (*RenderFuncPtr)(void *object);

typedef struct object_store ObjectStore;

/**
 * Attempts to allocate an ObjectStore object on the heap.
 *
 * Returns the pointer to the object when it succeeds, or NULL if it fails.
 */
ObjectStore *create_object_store();

/**
 * Attempts to add an object to the store.
 *
 * Returns the ObjectID on success or an INVALID_ID in the case of failure.
 */
ObjectID add_object_to_store(ObjectStore *os, void *object, EventHandlerPtr eh,
                             UpdateFuncPtr uf, RenderFuncPtr rf);

/**
 * Removes an object from the store using its ID.
 *
 * Does nothing if the ID is not valid.
 */
void remove_object_from_store(ObjectStore *os, ObjectID *id_ptr);

void handle_all_objects_events(ObjectStore *os, const SDL_Event *event);
void update_all_objects(ObjectStore *os, float delta);
void render_all_objects(ObjectStore *os);

/**
 * Frees the memory allocated to the ObjectStore object and performs the
 * necessary cleanup.
 */
void destroy_object_store(ObjectStore **os);

#ifdef DEBUG_ENGINE
void print_objects(ObjectStore *os);
#endif // !DEBUG_ENGINE

#ifdef __cplusplus
}
#endif // !__cplusplus

#endif // !OBJECT_STORE_H