#pragma once

#include <stdint.h>

/** Max chars for hostname / CPU / GPU name shown on UI. */
static constexpr int HOST_NAME_MAX = 40;
static constexpr int HOST_CPU_MAX = 48;
static constexpr int HOST_GPU_MAX = 48;

struct HostInfo {
  char host[HOST_NAME_MAX];
  char cpu[HOST_CPU_MAX];
  char gpu[HOST_GPU_MAX];
  float cpu_pct;      // 0..100
  float gpu_pct;      // 0..100, -1 if unknown
  float ram_used_gb;
  float ram_total_gb;
  float disk_used_gb;
  float disk_total_gb;
  bool valid;
  uint32_t updated_ms;
};

void host_info_begin();
/** Poll USB Serial for SI|... lines; return true if a packet was applied. */
bool host_info_poll();
const HostInfo &host_info_get();
/** True if last packet is fresher than stale_ms. */
bool host_info_is_live(uint32_t stale_ms = 5000);