#ifndef CONFIG_HEADER
#define CONFIG_HEADER
#include "stdint.h"
#include "string.h"

#define FLASH_USER_PAGE_ADDR ((const void *)(0x08077F00))

typedef struct {
    uint32_t magic;       // e.g. 0xDEADBEEF
    uint8_t privkey[32];  // Ed25519 private
    uint8_t pubkey[32];   // Ed25519 public
    uint8_t config[128];  // user config
    char nodeName[20];
    uint8_t extra[40];
    uint32_t crc32;  // integrity check
} PersistentData_t;

extern PersistentData_t persistent;

void saveConfig();
void loadConfig();
#endif