#ifndef MENU_H
#define MENU_H

#include "stdint.h"
#include "stdbool.h"
#include "display.h"

typedef struct _graphical_menu_t graphical_menu_t;
typedef struct _menu_entry_size_t menu_entry_size_t;
typedef void (*menu_callback_t)(void *const args);

/*
* Extra draw function is called after the menu entry is drawn
* It is used to draw additional graphics on top of the menu entry
* It is passed the size of the menu entry and the args
*/
typedef void (*extra_draw_function_t)(const menu_entry_size_t *const menu_entry_size, void *const args);

typedef struct
{
    const char *const title;
    bool disabled;
    const menu_callback_t highlighted_callback_function;
    void *const highlighted_callback_function_args;
    const menu_callback_t selected_callback_function;
    void *const selected_callback_function_args;
    const extra_draw_function_t extra_draw_function; // called after the menu entry is drawn
    void *const extra_draw_function_args;
} graphical_menu_entry_t;

struct _graphical_menu_t {
    graphical_menu_t *const parent_menu;
    const uint8_t num_children;
    uint8_t highlighted_child_idx;
    graphical_menu_entry_t *const children;
};

struct _menu_entry_size_t {
    const uint16_t x;
    const uint16_t y;
    const uint16_t width;
    const uint16_t height;
};

void draw_menu(volatile pixel_t *const framebuffer, const graphical_menu_t *const menu);
void partial_redraw_menu(volatile pixel_t *const framebuffer, graphical_menu_t *const menu, uint8_t old_highlighted_entry_idx, uint8_t new_highlighted_entry_idx);
void select_menu_entry(graphical_menu_t *const menu);
void set_selected_menu_entry_idx(volatile pixel_t *const framebuffer, graphical_menu_t *const menu, uint8_t idx);
void decrement_selected_menu_entry_idx(volatile pixel_t *const framebuffer, graphical_menu_t *const menu);
void increment_selected_menu_entry_idx(volatile pixel_t *const framebuffer, graphical_menu_t *const menu);

#endif