/*
 * rt_mesh.h
 * ESP-NOW mesh relay between Espilon agents.
 */
#pragma once

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

#ifdef __cplusplus
extern "C" {
#endif

/* Start ESP-NOW mesh (init, register callbacks, start probe/relay). */
bool rt_mesh_start(void);

/* Stop ESP-NOW mesh. */
void rt_mesh_stop(void);

/* Is mesh running? */
bool rt_mesh_is_running(void);

/* Send data via ESP-NOW relay (Agent A → Agent B → C2). */
bool rt_mesh_send(const uint8_t *data, size_t len);

/* Broadcast a probe to find connected agents. */
void rt_mesh_probe(void);

/* Get best relay peer info (device_id, RSSI). Empty if none found. */
typedef struct {
    uint8_t  mac[6];
    char     device_id[16];
    int8_t   rssi;
    bool     available;
} rt_mesh_peer_t;

bool rt_mesh_get_relay(rt_mesh_peer_t *out);

#ifdef __cplusplus
}
#endif