/**
 * @fileoverview Search functionality hook
 * @module hooks/useSearch
 */

import { useCallback, useState } from "react";
import { useChatbot } from "./useChatbot";
import type { Document } from "../core/contexts/ChatbotContext";

export interface UseSearchReturn {
  searchResults: Document[];
  isSearching: boolean;
  searchQuery: string;
  search: (query: string, limit?: number) => Promise<void>;
  clearSearch: () => void;
  hasResults: boolean;
}

export function useSearch(): UseSearchReturn {
  const { searchSimilarDocuments } = useChatbot();
  const [searchResults, setSearchResults] = useState<Document[]>([]);
  const [isSearching, setIsSearching] = useState(false);
  const [searchQuery, setSearchQuery] = useState("");

  const search = useCallback(
    async (query: string, limit = 10) => {
      if (!query.trim()) return;

      setIsSearching(true);
      setSearchQuery(query);

      try {
        const results = await searchSimilarDocuments(query, limit);
        setSearchResults(results);
      } catch (error) {
        console.error("Search failed:", error);
        setSearchResults([]);
      } finally {
        setIsSearching(false);
      }
    },
    [searchSimilarDocuments]
  );

  const clearSearch = useCallback(() => {
    setSearchResults([]);
    setSearchQuery("");
    setIsSearching(false);
  }, []);

  return {
    searchResults,
    isSearching,
    searchQuery,
    search,
    clearSearch,
    hasResults: searchResults.length > 0,
  };
}