#pragma once

#include <stdint.h>
#include <stddef.h>
#include "ringbuf.h"


#ifdef __cplusplus
extern "C" {
#endif

int build_telemetry(
    char* buf,
    size_t buf_size,
    int64_t ts,
    uint32_t device_id,
    const char* metric,
    const char* source,
    const char* unit,
    const int* values,
    size_t count
);

int build_telemetry_single(
    char* buf,
    size_t buf_size,
    const char* id,
    const char* device_id,
    int64_t ts_ms,
    const char* metric,
    double value,
    const char* unit,     // optional (NULL)
    const char* source,   // optional (NULL)
    int64_t m_ts_ms       // optional (0 = нет)
);

int build_event(
    char* buf,
    size_t buf_size,
    const char* id,
    const char* device_id,
    int64_t ts_ms,
    const char* name,
    const char* severity, // optional
    const char* message   // optional
);

uint32_t protocol_next_id();

void protocol_send_event_hb(int64_t ts);

bool protocol_is_connected();

#ifdef __cplusplus
}
#endif