/*
 * rt_config.h
 * NVS-backed known networks + C2 fallback addresses.
 */
#pragma once

#include <stdbool.h>
#include <stdint.h>
#include <stddef.h>

#ifdef __cplusplus
extern "C" {
#endif

#ifndef CONFIG_RT_MAX_KNOWN_NETWORKS
#define CONFIG_RT_MAX_KNOWN_NETWORKS 16
#endif

#ifndef CONFIG_RT_MAX_C2_FALLBACKS
#define CONFIG_RT_MAX_C2_FALLBACKS 4
#endif

#define RT_SSID_MAX_LEN  33   /* 32 + NUL */
#define RT_PASS_MAX_LEN  65   /* 64 + NUL */
#define RT_ADDR_MAX_LEN  64   /* "ip:port" or "host:port" */

/* ============================================================
 * Known WiFi networks
 * ============================================================ */

typedef struct {
    char ssid[RT_SSID_MAX_LEN];
    char pass[RT_PASS_MAX_LEN];
} rt_network_t;

/* Init NVS namespace, load config */
void rt_config_init(void);

/* Add/update a known network. Empty pass = open network. */
bool rt_config_net_add(const char *ssid, const char *pass);

/* Remove a known network by SSID. Returns false if not found. */
bool rt_config_net_remove(const char *ssid);

/* Get known networks list. Returns count. */
int rt_config_net_list(rt_network_t *out, int max_count);

/* Get count of known networks. */
int rt_config_net_count(void);

/* ============================================================
 * C2 fallback addresses
 * ============================================================ */

typedef struct {
    char addr[RT_ADDR_MAX_LEN];   /* "ip:port" */
} rt_c2_addr_t;

/* Add a C2 fallback address. Returns false if full. */
bool rt_config_c2_add(const char *addr);

/* Remove a C2 fallback address. Returns false if not found. */
bool rt_config_c2_remove(const char *addr);

/* Get C2 fallback addresses. Returns count. */
int rt_config_c2_list(rt_c2_addr_t *out, int max_count);

/* Get count of C2 fallback addresses. */
int rt_config_c2_count(void);

/* ============================================================
 * Original MAC storage (for restoration)
 * ============================================================ */

/* Save the current STA MAC as the original. Called once at boot. */
void rt_config_save_orig_mac(void);

/* Get the saved original MAC. Returns false if not saved. */
bool rt_config_get_orig_mac(uint8_t mac[6]);

#ifdef __cplusplus
}
#endif