import { useCallback, useMemo, useRef, useState } from "react";
import Fuse from "fuse.js";
import { useStore } from "../stores/global-stores";

export function useFuse<T>(
  docs: T[],
  options: Fuse.IFuseOptions<T> & {
    matchAllOnEmptyQuery?: boolean;
    limit?: number;
  }
) {

  const [query, updateQuery] = useState("");
  const globalInstanceCount = useRef(0);
  const { limit, matchAllOnEmptyQuery, ...fuseOptions } = options;

  const fuse = useMemo(() => {
    globalInstanceCount.current++;
    return new Fuse<T>(docs, options);
  }, [docs, options]);

  const hits: Fuse.FuseResult<T>[] = useMemo(() => {
    const data =
      !query && matchAllOnEmptyQuery
        ? docs.map((item, refIndex) => ({ item, refIndex }))
        : fuse.search(query, { limit: limit || 1000 });

    return data;
  }, [fuse, limit, matchAllOnEmptyQuery, query]);
  console.info(
    "[use-fuzzy-search] Total Fuse Index count",
    globalInstanceCount.current
  );

  return {
    hits,
    query,
    updateQuery,
  };
}