homeio

1"use client";
2
3import { useQuery } from "@tanstack/react-query";
4import type { NetworkStatus } from "@/lib/shared/contracts/network";
5import { queryKeys } from "@/lib/shared/query-keys";
6
7type NetworkStatusResponse = {
8  data: NetworkStatus;
9  meta?: {
10    source?: "helper" | "fallback";
11  };
12};
13
14async function fetchNetworkStatus() {
15  const response = await fetch("/api/v1/network/status", {
16    cache: "no-store",
17  });
18
19  if (!response.ok) {
20    throw new Error(`Failed to fetch network status (${response.status})`);
21  }
22
23  const json = (await response.json()) as NetworkStatusResponse;
24  return json.data;
25}
26
27export function useNetworkStatus() {
28  return useQuery({
29    queryKey: queryKeys.networkStatus,
30    queryFn: fetchNetworkStatus,
31    refetchInterval: (query) => {
32      if (query.state.status !== "error") {
33        // SSE-driven invalidation keeps this fresh; polling is fallback only.
34        return 120_000;
35      }
36
37      const failureCount = Math.max(1, query.state.fetchFailureCount);
38      const exponentialBackoffMs = 60_000 * 2 ** Math.min(failureCount - 1, 2);
39      return Math.min(exponentialBackoffMs, 300_000);
40    },
41    staleTime: 10_000,
42    retry: 0,
43    refetchOnWindowFocus: false,
44  });
45}
46