frontAnswerer/lib/utils/hooks/FlowControlLogic/useQuestionTimer.ts

import { useEffect, useRef } from "react";
import { enqueueSnackbar } from "notistack";

import { useQuizViewStore } from "@/stores/quizView";
import { sendQuestionAnswer } from "@/utils/sendQuestionAnswer";

type Params = {
  enabled: boolean;
  seconds: number;
  quizId: string;
  preview: boolean;
  currentQuestion: any; // Using any to avoid tight coupling with question union types
  onNext: () => void;
};

export function useQuestionTimer({ enabled, seconds, quizId, preview, currentQuestion, onNext }: Params) {
  const ownVariants = useQuizViewStore((state) => state.ownVariants);
  const currentQuizStep = useQuizViewStore((state) => state.currentQuizStep);
  const timeoutRef = useRef<number | null>(null);
  const isFirstQuestionRef = useRef<boolean>(true);

  useEffect(() => {
    if (!enabled) {
      return;
    }
    if (!seconds || seconds <= 0) {
      return;
    }
    if (!currentQuestion) {
      return;
    }
    if (currentQuizStep !== "question") {
      return;
    }
    if (currentQuestion.type === "result") {
      return;
    }

    // Сбрасываем предыдущий таймер
    if (timeoutRef.current) {
      clearTimeout(timeoutRef.current);
      timeoutRef.current = null;
    }

    // Для первого вопроса добавляем дополнительную задержку, чтобы избежать конфликтов с навигацией
    const isFirstQuestion = isFirstQuestionRef.current;
    const startDelay = isFirstQuestion ? 2000 : 100; // 2 секунды для первого вопроса, 100ms для остальных

    if (isFirstQuestion) {
      isFirstQuestionRef.current = false;
    }

    timeoutRef.current = window.setTimeout(
      async () => {
        try {
          if (!preview) {
            // Отправляем пустую строку в ответе (questionAnswer === undefined)
            await sendQuestionAnswer(quizId, currentQuestion, undefined, ownVariants);
          } else {
          }
        } catch (e) {
          console.error("❌ Error sending empty timed answer", e);
          enqueueSnackbar("Ошибка при отправке ответа по таймеру");
        } finally {
          onNext();
        }
      },
      seconds * 1000 + startDelay
    );

    return () => {
      if (timeoutRef.current) {
        clearTimeout(timeoutRef.current);
        timeoutRef.current = null;
      }
    };
  }, [enabled, seconds, quizId, preview, currentQuestion?.id, currentQuizStep, onNext]);
}