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import { useFetchMindMap, useFetchRelatedQuestions } from '@/hooks/chat-hooks';
import { useTestChunkRetrieval } from '@/hooks/knowledge-hooks';
import { useSendMessageWithSse } from '@/hooks/logic-hooks';
import { IAnswer } from '@/interfaces/database/chat';
import api from '@/utils/api';
import { isEmpty } from 'lodash';
import { useCallback, useEffect, useState } from 'react';

export const useSendQuestion = (kbIds: string[]) => {
  const { send, answer, done } = useSendMessageWithSse(api.ask);
  const { testChunk, loading } = useTestChunkRetrieval();
  const [sendingLoading, setSendingLoading] = useState(false);
  const [currentAnswer, setCurrentAnswer] = useState({} as IAnswer);
  const { fetchRelatedQuestions, data: relatedQuestions } =
    useFetchRelatedQuestions();
  const {
    fetchMindMap,
    data: mindMap,
    loading: mindMapLoading,
  } = useFetchMindMap();

  const sendQuestion = useCallback(
    (question: string) => {
      setCurrentAnswer({} as IAnswer);
      setSendingLoading(true);
      send({ kb_ids: kbIds, question });
      testChunk({ kb_id: kbIds, highlight: true, question });
      fetchMindMap({
        question,
        kb_ids: kbIds,
      });
      fetchRelatedQuestions(question);
    },
    [send, testChunk, kbIds, fetchRelatedQuestions, fetchMindMap],
  );

  useEffect(() => {
    if (!isEmpty(answer)) {
      setCurrentAnswer(answer);
    }
  }, [answer]);

  useEffect(() => {
    if (done) {
      setSendingLoading(false);
    }
  }, [done]);

  return {
    sendQuestion,
    loading,
    sendingLoading,
    answer: currentAnswer,
    relatedQuestions: relatedQuestions?.slice(0, 5) ?? [],
    mindMap,
    mindMapLoading,
  };
};