unleashed-firmware/applications/main/clock_app/clock_settings.h

#pragma once

#include "clock_settings_filename.h"

#include <furi_hal.h>
#include <stdint.h>
#include <stdbool.h>
#include <toolbox/saved_struct.h>
#include <storage/storage.h>

#define CLOCK_SETTINGS_VER (1)
#define CLOCK_SETTINGS_PATH EXT_PATH(CLOCK_SETTINGS_FILE_NAME)
#define CLOCK_SETTINGS_MAGIC (0xC1)

#define SAVE_CLOCK_SETTINGS(x) \
    saved_struct_save(         \
        CLOCK_SETTINGS_PATH, (x), sizeof(ClockSettings), CLOCK_SETTINGS_MAGIC, CLOCK_SETTINGS_VER)

#define LOAD_CLOCK_SETTINGS(x) \
    saved_struct_load(         \
        CLOCK_SETTINGS_PATH, (x), sizeof(ClockSettings), CLOCK_SETTINGS_MAGIC, CLOCK_SETTINGS_VER)

typedef enum {
    H12 = 1,
    H24 = 2,
} TimeFormat;

typedef enum {
    Iso = 1, // ISO 8601: yyyy-mm-dd
    Rfc = 2, // RFC 5322: dd-mm-yyyy
} DateFormat;

typedef struct {
    TimeFormat time_format;
    DateFormat date_format;
} ClockSettings;