"use client";

import { useState, useEffect, useCallback } from "react";

import { health } from "@/lib/mock-gateway";

import type { HealthResponse } from "@/lib/types";

interface UseHealthReturn {

  data: HealthResponse | null;

  loading: boolean;

  error: string | null;

  refresh: () => Promise<void>;

}

export function useHealth(pollIntervalMs = 30_000): UseHealthReturn {

  const [data, setData] = useState<HealthResponse | null>(null);

  const [loading, setLoading] = useState(true);

  const [error, setError] = useState<string | null>(null);

  const refresh = useCallback(async () => {

    try {

      const result = await health();

      setData(result);

      setError(null);

    } catch (err) {

      setError(err instanceof Error ? err.message : "Health check failed");

    } finally {

      setLoading(false);

    }

  }, []);

  useEffect(() => {

    refresh();

    const interval = setInterval(refresh, pollIntervalMs);

    return () => clearInterval(interval);

  }, [refresh, pollIntervalMs]);

  return { data, loading, error, refresh };

}