frontAnswerer/lib/components/ViewPublicationPage/StartPageViewPublication/OverTime.tsx

import { Box, Typography, useTheme, SxProps, Theme } from "@mui/material";
import { useQuizStore } from "@stores/useQuizStore";
import moment from "moment";
import React from "react";
import { useTranslation } from "react-i18next";

type OverTimeProps = {
  sx?: SxProps<Theme>;
};

export const OverTime = ({ sx }: OverTimeProps) => {
  const theme = useTheme();
  const { settings } = useQuizStore();
  const { t } = useTranslation();
  const [currentTime, setCurrentTime] = React.useState(moment());

  // Реактивный таймер с useEffect
  React.useEffect(() => {
    const interval = setInterval(() => {
      setCurrentTime(moment());
    }, 1000);

    return () => clearInterval(interval);
  }, []);

  // Проверяем, включен ли overTime
  const overTimeConfig = settings?.cfg?.overTime;
  const isEnabled = overTimeConfig?.enabled;

  // Если не включен, не показываем карточку
  if (!isEnabled) {
    return null;
  }

  // Функция для расчета времени до окончания
  const calculateTimeLeft = (now: moment.Moment) => {
    // Для тестирования: добавляем 2 часа к текущему времени
    const testEndsAt = moment().add(2, "hours");
    const endsAt = overTimeConfig?.endsAt ? moment(overTimeConfig.endsAt) : testEndsAt;

    if (endsAt.isBefore(now) || endsAt.isSame(now)) {
      return { days: 0, hours: 0, minutes: 0, seconds: 0 };
    }

    const duration = moment.duration(endsAt.diff(now));

    return {
      days: Math.floor(duration.asDays()),
      hours: duration.hours(),
      minutes: duration.minutes(),
      seconds: duration.seconds(),
    };
  };

  const { days, hours, minutes, seconds } = calculateTimeLeft(currentTime);

  return (
    <Box
      sx={{
        width: "225px",
        backgroundColor: (theme.palette as any).paperBackground,
        boxShadow: "1px 1px 4px 0px rgba(51, 54, 71, 0.29)",
        borderRadius: "8px",
        p: "10px",
        ...sx,
      }}
    >
      <Typography
        sx={{
          fontSize: "12px",
          color: (theme.palette as any).paperText,
          textAlign: "center",
        }}
      >
        {overTimeConfig?.description || t("Quiz will become unavailable in")}
      </Typography>
      <Box
        sx={{
          display: "inline-flex",
          justifyContent: "space-around",
          alignItems: "center",
          width: "100%",
          mt: "8px",
          color: (theme.palette as any).paperSecondaryText,
        }}
      >
        <Box
          sx={{
            bgcolor: (theme.palette as any).paperBlockBackground,
            width: "42px",
            height: "45px",
            display: "flex",
            flexDirection: "column",
            alignItems: "center",
            borderRadius: "8px",
            justifyContent: "center",
          }}
        >
          <Typography
            sx={{
              fontSize: "16px",
              color: (theme.palette as any).paperText,
              lineHeight: 1.2,
            }}
          >
            {days}
          </Typography>
          <Typography
            sx={{
              fontSize: "10px",
              lineHeight: 1.2,
            }}
          >
            {t("days")}
          </Typography>
        </Box>
        :
        <Box
          sx={{
            bgcolor: (theme.palette as any).paperBlockBackground,
            width: "42px",
            height: "45px",
            display: "flex",
            flexDirection: "column",
            alignItems: "center",
            borderRadius: "8px",
            justifyContent: "center",
          }}
        >
          <Typography
            sx={{
              fontSize: "16px",
              color: (theme.palette as any).paperText,
              lineHeight: 1.2,
            }}
          >
            {hours}
          </Typography>
          <Typography
            sx={{
              fontSize: "10px",
              lineHeight: 1.2,
            }}
          >
            {t("hours")}
          </Typography>
        </Box>
        :
        <Box
          sx={{
            bgcolor: (theme.palette as any).paperBlockBackground,
            width: "42px",
            height: "45px",
            display: "flex",
            flexDirection: "column",
            alignItems: "center",
            borderRadius: "8px",
            justifyContent: "center",
          }}
        >
          <Typography
            sx={{
              fontSize: "16px",
              color: (theme.palette as any).paperText,
              lineHeight: 1.2,
            }}
          >
            {minutes}
          </Typography>
          <Typography
            sx={{
              fontSize: "10px",
              lineHeight: 1.2,
            }}
          >
            {t("minutes")}
          </Typography>
        </Box>
        :
        <Box
          sx={{
            bgcolor: (theme.palette as any).paperBlockBackground,
            width: "42px",
            height: "45px",
            display: "flex",
            flexDirection: "column",
            alignItems: "center",
            borderRadius: "8px",
            justifyContent: "center",
          }}
        >
          <Typography
            sx={{
              fontSize: "16px",
              color: (theme.palette as any).paperText,
              lineHeight: 1.2,
            }}
          >
            {seconds}
          </Typography>
          <Typography
            sx={{
              fontSize: "10px",
              lineHeight: 1.2,
            }}
          >
            {t("seconds")}
          </Typography>
        </Box>
      </Box>
    </Box>
  );
};