/**
 * @file menu.h
 * @brief Menu system for OLED display
 */
#pragma once

#include <stdint.h>

#ifdef __cplusplus
extern "C" {
#endif

/* Menu item callback */
typedef void (*menu_callback_t)(void);

/* Menu item structure */
typedef struct {
    const char *name;           /* Display name (max 16 chars visible) */
    menu_callback_t callback;   /* Callback when selected */
    struct menu_t *submenu;     /* Sub-menu (NULL if leaf) */
} menu_item_t;

/* Menu structure */
typedef struct menu_t {
    const char *title;          /* Menu title */
    const menu_item_t *items;   /* Array of menu items */
    uint8_t item_count;         /* Number of items */
    uint8_t current;            /* Current selection index */
} menu_t;

/* Initialize menu system */
void menu_init(void);

/* Navigate up */
void menu_up(void);

/* Navigate down */
void menu_down(void);

/* Select current item */
void menu_select(void);

/* Go back to parent menu */
void menu_back(void);

/* Get current menu for display */
const menu_t* menu_get_current(void);

/* Draw current menu on OLED */
void menu_draw(void);

/* Get current menu item name */
const char* menu_get_current_item_name(void);

#ifdef __cplusplus
}
#endif