#ifndef NOVA64_CORE_H
#define NOVA64_CORE_H

#include "nova64_io_interface.h"
#include "nova64_ppu_interface.h"
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>


// Cross-platform DLL export/import visibility macros
#if defined(_WIN32) || defined(__CYGWIN__)
#ifdef NOVA64_EXPORTS
#define NOVA64_API __declspec(dllexport)
#else
#define NOVA64_API __declspec(dllimport)
#endif
#else
#if __GNUC__ >= 4
#define NOVA64_API __attribute__((visibility("default")))
#else
#define NOVA64_API
#endif
#endif

/* ========================================================================== */
/* Engine Core API                                                            */
/* ========================================================================== */

/**
 * @brief Initializes the core engine, registers host I/O interface callbacks,
 * and starts the built-in launcher from internal storage in the WASM runtime.
 * @param io_interface Pointer to filled struct containing I/O function
 * pointers.
 * @return True if initialized successfully, false if already initialized or
 * invalid.
 */
NOVA64_API bool nova64_init(const nova64_io_interface_t *io_interface,
                            const nova64_ppu_interface_t *ppu_interface);

/**
 * @brief Starts the main engine runtime and launches the FreeRTOS scheduler.
 * @return 0 on success, negative error code on failure.
 */
NOVA64_API int32_t nova64_main();

#if defined(NOVA64_SHUTDOWN_AVAILABLE)
/**
 * @brief Requests shutdown of the FreeRTOS scheduler.
 * @return True if the shutdown request was issued, false otherwise.
 */
NOVA64_API bool nova64_shutdown(void);
#endif

/**
 * @brief Retrieves the engine version integer.
 * @return 24-bit packed version number (0xMMmmPP -> Major, Minor, Patch).
 */
NOVA64_API uint32_t nova64_get_version(void);

#endif // NOVA64_CORE_H