#pragma once

#include <Arduino.h>

// Unique per-node identity derived from the ESP32's factory MAC (PRD 5.1).
// Two nodes flashed with the identical binary still land on distinct MQTT
// topics and distinct HA entity ids, so adding a node never collides with an
// existing one.
namespace node_id {

// Must be called once in setup(), before anything reads the values below.
void begin();

// e.g. "soil-node-a1b2c3" -- lowercase, safe for MQTT topics and HA object ids.
const char *slug();

// e.g. "Soil Node A1B2C3" -- shown as the device name in Home Assistant.
const char *friendlyName();

// e.g. "a1:b2:c3:d4:e5:f6"
const char *macAddress();

}  // namespace node_id