// data.js (API слой)
// Типы ответов от сервера
interface HealthResponse {
  status: string;
  uptime_sec: number;
  last_data_ms: number;
  pipe_alive: boolean;
  has_data: boolean;
  latest: number;
  server_time?: string;
  stats: {
    filled: number;
    bytes_per_sec: number;
  };
}

interface HistoryResponse {
  bytes: number[];
}

export async function fetchHealth(): Promise<HealthResponse> {
  const r = await fetch("/api/health");
  if (!r.ok) throw new Error(`HTTP ${r.status}`);
  return r.json();
}

export async function fetchHistory(): Promise<HistoryResponse> {
  const r = await fetch("/api/history");
  if (!r.ok) throw new Error(`HTTP ${r.status}`);
  return r.json();
}