"use client";

import { useState, useCallback } from "react";

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

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

interface UseAskReturn {

  data: AskResponse | null;

  loading: boolean;

  error: string | null;

  submit: (query: string) => Promise<void>;

  reset: () => void;

}

export function useAsk(): UseAskReturn {

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

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

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

  const submit = useCallback(async (query: string) => {

    if (!query.trim()) return;

    setLoading(true);

    setError(null);

    setData(null);

    try {

      const result = await ask(query.trim());

      setData(result);

    } catch (err) {

      setError(err instanceof Error ? err.message : "Unknown error");

    } finally {

      setLoading(false);

    }

  }, []);

  const reset = useCallback(() => {

    setData(null);

    setError(null);

    setLoading(false);

  }, []);

  return { data, loading, error, submit, reset };

}