frontPanel/src/pages/Questions/QuestionsPage.tsx

import {
    Box,
    Button,
    IconButton,
    Typography,
    useMediaQuery,
    useTheme,
} from "@mui/material";
import AddPlus from "../../assets/icons/questionsPage/addPlus";
import ArrowLeft from "../../assets/icons/questionsPage/arrowLeft";
import { quizStore } from "@root/quizes";
import { useParams } from "react-router-dom";
import {
    questionStore,
    createQuestion,
    updateQuestionsList,
} from "@root/questions";
import { DraggableList } from "./DraggableList";

import type { AnyQuizQuestion } from "../../model/questionTypes/shared";
import QuizPreview from "@ui_kit/QuizPreview/QuizPreview";
import { createPortal } from "react-dom";

export default function QuestionsPage() {
    const { listQuizes, updateQuizesList } = quizStore();
    const quizId = Number(useParams().quizId);
    const { listQuestions } = questionStore();
    const handleNext = () => {
        updateQuizesList(quizId, { step: listQuizes[quizId].step + 1 });
    };

    const handleBack = () => {
        let result = listQuizes[quizId].step - 1;
        updateQuizesList(quizId, { step: result ? result : 1 });
    };

  const collapseEverything = () => {
    listQuestions[quizId].forEach((item, index) => {
      updateQuestionsList<AnyQuizQuestion>(quizId, index, {
        ...item,
        expanded: false,
      });
    });
  };

    const theme = useTheme();
    const isTablet = useMediaQuery(theme.breakpoints.up(1000));

  return (
    <>
      {/* <Stepper activeStep={activeStep} desc={"Задайте вопросы"} /> */}
      <Box
        sx={{
          maxWidth: "796px",
          width: "100%",
          display: "flex",
          justifyContent: "space-between",
          margin: "60px 0 40px 0",
        }}
      >
        <Typography variant={"h5"}>Заголовок квиза</Typography>
        <Button
          sx={{
            fontSize: "16px",
            lineHeight: "19px",
            padding: 0,
            textDecoration: "underline",
            color: theme.palette.brightPurple.main,
            textDecorationColor: theme.palette.brightPurple.main,
          }}
          onClick={collapseEverything}
        >
          Свернуть всё
        </Button>
      </Box>
      <DraggableList />
      <Box
        sx={{
          display: "flex",
          justifyContent: "space-between",
          maxWidth: "796px",
        }}
      >
        <IconButton
          onClick={() => {
            createQuestion(quizId);
          }}
        >
          <AddPlus />
        </IconButton>
        <Box sx={{ display: "flex", gap: "8px" }}>
          <Button
            variant="outlined"
            sx={{ padding: "10px 20px", borderRadius: "8px", height: "44px" }}
          >
            <ArrowLeft />
          </Button>
          <Button
            variant="contained"
            sx={{
              height: "44px",
              padding: "10px 20px",
              borderRadius: "8px",
              background: theme.palette.brightPurple.main,
              fontSize: "18px",
            }}
            onClick={handleNext}
          >
            Следующий шаг
          </Button>
        </Box>
      </Box>
      {createPortal(<QuizPreview />, document.body)}
    </>
  );
}