#include "data_model.h"
#include <esp_mac.h>

void init_device_ids(uint16_t &short_id, char *device_id, size_t device_id_len) {
  uint8_t mac[6] = {0};
  // Read base MAC without needing WiFi to be started.
  esp_read_mac(mac, ESP_MAC_WIFI_STA);
  short_id = (static_cast<uint16_t>(mac[4]) << 8) | mac[5];
  snprintf(device_id, device_id_len, "dd3-%04X", short_id);
}