//
// Created by william on 16/05/24.
//

#ifndef NES_EMULATOR_GUI_H
#define NES_EMULATOR_GUI_H

#include <stdbool.h>
#include <SDL_ttf.h>

typedef enum {
    WINDOW_TYPE_MAIN = 0,
    WINDOW_TYPE_NAMETABLE = 1,
    WINDOW_TYPE_PATTERN_TABLE = 2,
} WindowType;
#define WINDOW_TYPE_MAX WINDOW_TYPE_PATTERN_TABLE

/**
 * Initializes the graphical user interface of the emulator.
 * @return A boolean indicating if the GUI was successfully initialized.
 */
bool gui_init();

/**
 * Free the resources used by the graphical user interface.
 */
void gui_free();

/**
 * Creates and open a window. If a window of the given type already exists, focus it.
 * @param type The type of window to open.
 */
void gui_window_create(WindowType type);

/**
 * Process user input events received since the last call to gui_input.
 * @return An integer indicating if the user closed the main window (-1).
 */
int gui_input();

/**
 * Renders the graphical user interface to the screen.
 */
void gui_render();

/**
 * Blocks until the next frame should be drawn, making the frame rate 60 hertz.
 */
void gui_delay();

/**
 * Gets the font used for the graphical user interface.
 * @return A reference to the TTF font.
 */
TTF_Font* gui_get_font();

#endif //NES_EMULATOR_GUI_H